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iForest - Biogeosciences and Forestry
vol. 10, pp. 759-765
Copyright © 2017 by the Italian Society of Silviculture and Forest Ecology
doi: 10.3832/ifor2288-010

Research Articles

A comparative study of growth and leaf trait variation in twenty Cornus wilsoniana W. families in southeastern China

Xiangrong Cheng (1), Hongtao Xie (1), Liangbo Zhang (2), Minghuai Wang (3), Changzhu Li (2), Mukui Yu (1), Zhenxiang He (4)Corresponding author


Cornus wilsoniana Wangerin is a deciduous tree that is native to South and West China. C. wilsoniana is not only a high-quality wood tree but also a biofuel tree with high yield and high oil content (the fruits contain 33-36% oil - [36], [15], [9]). Recently, this multi-functional tree species has rapidly developed in South China, and its area will increase to 2 million hectares by 2020 ([16]).

Cultivar selection is an effective method for increasing wood and fruit yield. Genetic diversity is the foundation of plant breeding. Previous studies have shown that intraspecific variation is lower than interspecific variability ([11], [12]). In fact, traditional community ecology has mainly focused on interspecific variation, and little work has involved intraspecific variation ([45], [42]). However, many studies have shown that there is high variability at the intraspecific level ([29], [10]), provenance level ([26], [32]) and at the family or clone level ([19], [48]).

Variation in leaf traits is an important component of plant phenotypic plasticity, and it is determined by genetics and the environment ([5], [3], [43]). Leaves are the main organs for photosynthesis and are tightly linked to plant biomass production; they are the main exchange platform for water, energy and carbon between the plant and the atmosphere. Leaf traits can reflect plant survival strategies to address environmental changes, and they also reflect plant adaptation strategies to maximize the harvest of carbon. Therefore, understanding variation in leaf traits not only has importance in ecological and biological evolution but also has great significance for plant growth and production. Some leaf traits are good indicators to use in selecting tree species with good growth performance and high biomass productivity ([1]). Among various leaf traits, leaf area, gas exchange, and intrinsic water use efficiency have been shown to be critical variables in determining plant biomass productivity ([18], [4], [8]). Other leaf traits, such as leaf nitrogen concentration and specific leaf area, are sometimes correlated with plant biomass and productivity, which are influenced by tree species, tree age, and growth conditions ([20]). However, the majority of these results were obtained from fast-growing trees, such as poplar and willow, and some studies were conducted in greenhouses with sufficient water and nutrient supplies. The stability of the relationships between intraspecific variation and leaf traits must be tested using much wider ranges of tree species and environmental conditions.

Although C. wilsoniana has recently received more attention and is well documented in silviculture and oil analysis, cultivar selection and the relationship between growth and leaf trait variation in cultivars are less well studied. The objectives of this study were to (1) compare the variation in growth and leaf traits among twenty C. wilsoniana families, (2) determine whether leaf traits can predict seedling growth performance, and (3) select superior families for the study area.

Materials and methods 

Site description

The study was conducted at the Yangkou Forest Farm (117° 55′ E, 26° 47′ N, mean altitude 282 m), located in the north of Fujian Province, China. The average annual temperature in the study area is 18.5 °C, the average annual precipitation is 1880 mm, and the frost-free period is 280 days. The study area has a subtropical marine monsoon climate. The average slope is 15% in the experimental area. The soil texture in the study area is clay loam, and the pH is 4.5-4.8. The average contents of soil organic matter, soil available nitrogen and soil available phosphorus are 22.53 g kg-1, 172.71 mg kg-1, and 1.66 mg kg-1, respectively.

Experimental design

The experiment was performed in March 2013 using a randomized block design and included three blocks. Twenty C. wilsoniana families were randomly planted in the subplots of each block using 2 × 3 m spacing, and there were approximately 100 2-year-old seedlings in each family. The seedlings of the twenty families came from twenty plus trees in Guangdong Province. The seeds of these plus trees were collected and sown in the nursery of Guangdong Longshan Forest Farm. The sites of the selected plus trees, Longshan Forest Farm, and the experimental area are marked on the map in Fig. 1.

Fig. 1 - Map of China showing the location of the experimental area (Fujian Yangkou Forest Farm), Guangdong Longshan Forest Farm and the plus trees selected in Guangdong Province; numbers inside the circles represent the twenty families.

Seedling growth and leaf trait measurements

The stem height and ground diameter (5 cm above the ground) of each seedling were measured from July through August 2014. Nine seedlings in the center of each subplot (each family) were randomly selected for sampling. Over 50 mature leaves were collected from these seedlings, which were used to measure leaf length, leaf width and leaf area using the WinFOLIA® Analysis System (Regent Instruments Inc., Canada). The sampled leaves were dried at 75 °C until they reached a constant mass, and then, the dried leaves were ground and passed through a 2 mm sieve. The specific leaf area was calculated using the individual leaf area and dry mass. The total nitrogen and phosphorus concentrations in the leaves were determined using the Kjeldahl method and spectrophotometry, respectively. The leaf nitrogen and phosphorus concentrations are expressed on a dry mass basis.

The photosynthetic gas exchange of the leaves was measured with an LI-6400® portable photosynthesis system (Li-Cor, Inc., Lincoln, NE, USA). Six seedlings in each family were selected for the measurement of photosynthetic gas exchange. Four to five fully expanded and exposed leaves from each seedling were selected for the measurement of photosynthetic gas exchange. The photosynthetically active radiation was set to 1000 μmol m-2 s-1, and light was provided by the red/blue LED light source of the Li-6400. The measurements were carried out from 8:30 to 12:00 p.m. on sunny days. The gas parameters, such as net photosynthetic rate, stomatal conductance, intercellular CO2 concentration, transpiration rate and instantaneous water use efficiency (WUE), are expressed as average values.

Fresh leaf samples were washed thoroughly with distilled water in the laboratory, dried at room temperature (32 °C) and analyzed for the determination of chlorophyll a, chlorophyll b and total carotenoid concentrations. The chlorophyll a, chlorophyll b and total carotenoids in the leaves were extracted using acetone ethanol and then analyzed using a spectrophotometer (723N Jingke, China). See Tab. 1 for the abbreviations and units associated with these traits.

Tab. 1 - Traits measured in the study.

Data analysis

One-way analysis of variance (ANOVA) was used to test for differences in seedling growth and in leaf physiological and morphological traits among the different C. wilsoniana families. The broad-sense heritability (H2) of each parameter was estimated based on a one-way ANOVA model as H2= σ2G /(σ2G2R), where σ2G and σ2R are the genetic variance and residual variance, respectively ([37]). The correlations between the leaf traits were analyzed by Pearson’s correlations with a two-tailed test. Principal component analysis (PCA) was used to summarize the variability in the leaf traits. The traits were standardized, and orthogonal factors (i.e., the PC axes) were established as linear combinations of these traits to distinguish certain key traits. The relationships between seedling growth (such as stem height and diameter) and leaf traits were analyzed using ordinary least squares (OLS) linear regression. To select special functional types among the families, cluster analysis was performed on the seedling growth and leaf traits matrix using Euclidean distances and Ward’s linkage method. The number of clusters was determined by the visual assessment of cluster separation in the dendrogram and in the PCA ordination space. All data analysis was performed using SPSS® 17.0 (IBM SPSS Inc., NY, USA), and the significance level was set at P<0.05.


Plant growth

Stem height (H) and diameter (D) were significantly different among the twenty families (P<0.05). The average H was 107.3 cm; the maximum was 141.8 cm, and the minimum was 77.9 cm. The phenotypic coefficient of variance (CV) was 15.1%. The average D was 1.67 cm; the maximum was 2.10 cm, and the minimum was 1.29 cm. The CV was 13.7%. The H2 values were 0.75 and 0.73 for H and D, respectively (Fig. 2 and Fig. 3).

Fig. 2 - Mean ± standard deviation (error bars) of the seedling heights of the twenty families.
Fig. 3 - Mean ± standard deviation (error bars) of the seedling diameters of the twenty families.

Leaf traits

The majority of the leaf traits showed significant differences among the twenty families (P<0.05), but no significant differences were observed for the ratio chlorophyll a/chlorophyll b (Chla/Chlb, P>0.05 - Tab. 2). The CVs were greater than 20% for gs and Ci; the CVs varied from 10% to 20% for the net photosynthetic rate (Pn), transpiration rate (Tr), WUE, Chla, Chlb, Chl, carotenoid concentration (Car), Chl/Car, leaf area (LA), leaf nitrogen (LN) and leaf phosphorus (LP); and the CVs were less than 10% for the other variables. The H2 was higher for Pn, WUE, Chla, Chlb, Chl, and LN, and it was lower for the other leaf traits, especially for Chla/Chlb (0.17) and Chl/Car (0.31).

Tab. 2 - Descriptive statistics of the leaf traits of twenty families.

Correlations between leaf traits

Pearson’s correlation coefficients were determined for all pairwise combinations of leaf traits (Tab. S1 in Supplementary material). The gas exchange variables (Pn, gs and WUE) were positively correlated with Chla, Chlb and Chl, but only Pn was positively correlated with SLA and negatively correlated with LA. Chl was positively correlated with LN and LP, and Car was positively correlated with SLA and LP. SLA showed a positive correlation with LP and was negatively correlated with LN/LP. There was a positive correlation between LN and LP.

PCA showed that the top 3 principal components explained more than 64% of the total variance (Fig. 4). The first principal component (PC1) accounted for 33.9% of the total variance, which was mainly associated with changes in Chla, Chlb, Chl and Pn. The second principal component (PC2) accounted for 16.6% of the total variance and represented the variation in LP and SLA. The third principal component (PC3) accounted for an additional 13.9% of the total variance, and LA exhibited the highest loading.

Fig. 4 - Results of the principal component analysis (PCA) of the leaf traits, PC1 against PC2 (a) and PC1 against PC3 (b). The percentages in brackets represent the percent of total variance.

The linear least squares regression showed that WUE, Chla, Chlb and Chl were significantly positively correlated with H. The other leaf traits showed no significant linear relationships with H (Tab. 3). D was significantly positively correlated with Pn, gs, WUE, Chla, Chlb, Chl, LL and LL/LW and negatively correlated with LP but showed no significant correlation with the other leaf traits (Tab. 3).

Tab. 3 - Ordinary least squares regression results for the nineteen bivariate relationships.

Cluster analysis

Based on a cluster analysis of leaf traits and seedling growth, the families were classified into four groups (Fig. 5). The first group consisted of SW-6, SW-15, SW-16, SW-17, SW-18 and SW-19; the second group consisted of SW-1, SW-2 and SW-4; the third group consisted of SW-7, SW-9, SW-13 and SW-14; and the fourth group consisted of SW-3, SW-5, SW-8, SW-10, SW-11, SW-12 and SW-20. Collectively, the families in the first and second groups exhibited higher performance in most of the studied traits than did those in the third and fourth groups. The three families in the second group performed better than those in group 1 in terms of Pn, WUE, SLA, and diameter growth rate, and the third group exhibited lower performance in Pn and SLA than the fourth group.

Fig. 5 - Cluster analysis of different families of C. wilsoniana.


Variation in growth and leaf traits

It is very important to understand the genetic variation within species, families or clones for plant breeding ([34]). The CV and H2 are two key parameters for evaluating the extent of variability in a breeding population and in selecting cultivars ([17]).High phenotypic variability in a species benefits cultivar selection. In the current study, we found that growth and most leaf traits exhibited significant differences and great variation among the twenty families, with the CVs of different traits varying from 5.33% to 23.17%. This finding is in accordance with previous studies ([19], [18], [14], [13], [41], [43]). Zhao et al. ([48]) showed that the CVs of H and diameter at breast height (DBH) varied from 15.37% to 20.85% for 44 Betula platyphylla families. Pliura et al. ([28]) reported that the CVs of H and DBH varied from 10.05% to 31.60% among poplar clones at different sites. The CVs of H and D in the present study were lower than those in these previous studies, which may be due to differences in the plant species, the numbers of families or clones or the environment.

High heritability was observed for stem height (H2=0.75), diameter (H2=0.73), Pn (H2=0.70), WUE (H2=0.70), Chl (H2=0.64-0.75) and LN (H2=0.71). This result indicates that these traits showed high diversity among the families and low sensitivity to the microenvironmental heterogeneities in the study area. By contrast, Chla/Chlb (H2=0.17), Chl/Car (H2=0.31) and leaf size (H2 varied from 0.48 to 0.54) displayed low heritability, which may be due to low interfamily variability.

Plant physiological and morphological plasticity may play different roles in response to environmental changes. Recently, a review by Gratani ([7]) indicated that in colonized gaps and open areas, the plasticity of physiological traits plays a dominant role because it ensures adjustments in gas exchange in response to changes in environmental factors. Leaf morphology tends to be maintained under stress conditions to avoid the production of structures too expensive to be sustained ([2], [39]). Additionally, morphological plasticity is closely linked to the capacity of a plant to acquire resources in forest understories ([23], [25]). In this study, the variation in leaf physiological traits was greater than that in morphological traits (Tab. 2). The results from the PCA also confirmed that the proportion of the leaf physiological traits accounting for the total variance was greater than that of the morphological traits (Fig. 4). However, some studies have found that the genetic variation among tree genotypes in terms of morphological traits was greater than that for physiological traits ([22], [21]). The difference might be explained by two factors. First, the present study was conducted at a single site, which results in less variation in environmental conditions; the physiological traits with high CVs also exhibited greater H2, which implies that a difference in tree species might be an important factor that leads to different results. Second, the present study included a smaller number of morphological traits.

The twenty families in this study represent a very small subset of the actual population. Additionally, phenotypic plasticity results from phenotypic variation due to genotype and the environment, as well as their interactions; thus, the levels of phenotypic variation may be higher in natural C. wilsoniana stands.

Leaf traits related to growth

The parameters of tree stem growth, such as H and D (or DBH), are often used to evaluate tree growth performance because these two parameters are directly associated with aboveground biomass ([27], [19], [35]). In the present study, H was significantly positively correlated with WUE, Chla, Chlb and Chl and showed a relatively weak correlation with Pn (P = 0.060). D was significantly positively correlated with Pn, gs, WUE, Chla, Chlb and Chl and was negatively correlated with LP. Pn is closely associated with biomass and productivity in many plant species; however, it is not always positively correlated with tree growth and biomass, which might be due to photosynthetic complexity, different carbon allocation patterns, or sampling error while collecting photosynthesis data ([4], [6]). Reddy et al. ([33]) confirmed that Chla, Chlb, the Chla/Chlb ratio and the total Chl showed significant positive correlations with leaf area and yield in different genotypes of mulberry (Morus spp. L.). Therefore, our results indicate that families with higher Pn and chlorophyll content have the potential for better growth performance. A higher WUE would be beneficial for seedling survival and growth in arid habitats, where reducing water loss allows a tree to avoid dehydration and extend water use. In recent years, the seasonal drought frequency has increased in the study area. At the same time, the families with low LP may be better adapted to phosphorus-deficient soils.

Leaf area, total leaf area and leaf number per plant have been considered to be good indicators and have been used to predict the productivity of fast-growing poplar and Salix species ([47], [44]). Some studies have shown that H and D are positively correlated with leaf area and total leaf area ([31], [19]). In the current study, although D was positively correlated with LW and LL/LW, no significant correlation was observed between D and LA. Therefore, compared to the average leaf area, the total leaf area per plant may be more important for predicting plant growth because a larger total leaf area suggests that the plant can capture more light. However, the present study did not investigate the total leaf area per plant.

Many studies have shown that Pn is significantly correlated with LN or SLA and that LN and SLA play key roles in the photosynthetic process. We found that only Pn was positively correlated with SLA; no significant correlations were observed between the two variables and H and D. Some studies have shown a positive correlation between SLA and relative growth rate (RGR - [30], [40]). Other studies have reported that SLA was negatively correlated with biomass production ([24], [46], [38]). These different results for the relationship between SLA or LN and growth or productivity depended on species, growth conditions and tree age ([20]).

In this context, additional studies are needed to test: (i) whether the ranking of these families in terms of growth performance based on leaf traits remains stable over time; (ii) whether these results can be extended to clones; and (iii) the relationship between leaf traits and fruit yield at the level of families or clones.


This study confirmed that seedling growth and leaf traits display high variability among twenty C. wilsoniana families and suggested greater genetic variation in physiological traits than in morphological traits. Pn, WUE, Chla, Chlb, Chla/Chlb, total Chl and LP could be used together to select families with the best growth performance. Plant adaptation to specific environments is a key factor to consider to increase growth and productivity. Based on the variation in seedling growth and leaf traits, 3 superior families were selected for this study area.


This work was supported by the Science and Technology Planning Project of Guangdong Province (No. 2014A020208033), the Forest Research Project of Fujian Provincial Department of Forestry (No. 2013-5) and the National Key Technology R&D Program (2015BAD15B02).

Conflict of Interest 

The authors declare that they have no conflicts of interest.


Bunn SM, Rae AM, Herbert CS, Taylor G (2004). Leaf-level productivity traits in Populus grown in short rotation coppice for biomass energy. Forestry 77: 307-323.
::CrossRef::Google Scholar::
Chapin III FS, Autumn K, Pugnaire F (1993). Evolution of suites of traits in response to environmental stress. American Naturalist 142: S78-S92.
::CrossRef::Google Scholar::
Desdevises Y, Legendre P, Azouzi L, Morand S (2003). Quantifying phylogenetically structured environmental variation. Evolution 57: 2647-52.
::CrossRef::Google Scholar::
Dillen SY, Rood SB, Ceulemans R (2010). Growth and physiology. In: “Genetics and Genomics of Populus (Plant Genetics and Genomics: Crops and Models), vol 8” (Jansson S, Bhalerao R, Groover A eds). Springer, New York, USA, pp. 39-63.
::CrossRef::Google Scholar::
Dudley SA, Schmitt J (1995). Genetic differentiation in morphological responses to simulated foliage shade between populations of Impatiens capensis from open and woodland sites. Functional Ecology 9: 655-66.
::CrossRef::Google Scholar::
Flood PJ, Harbinson J, Aarts MGM (2011). Natural genetic variation in plant photosynthesis. Trends in Plant Science 16: 327-335.
::CrossRef::Google Scholar::
Gratani L (2014). Plant phenotypic plasticity in response to environmental factors. Advances in Botany 2014 (4): 1-17.
::CrossRef::Google Scholar::
Guha A, Reddy AR (2013). Leaf functional traits and stem wood characteristics influencing biomass productivity of mulberry (Morus spp. L) genotypes grown in short-rotation coppice system. BioEnergy Research 6 (2): 547-563.
::CrossRef::Google Scholar::
He ZX, Shi SD, Hu YM, Zhang LB, Fu J (2013). The China Oil Plant Species (COPS) database: a comprehensive web-based database and informatics system providing ecological and chemical traits of oil plants in China. Vegetos 26 (2): 15-22.
::Online::Google Scholar::
Hulshof CM, Swenson NG (2010). Variation in leaf functional trait values within and across individuals and species: an example from a Costa Rican dry forest. Functional Ecology 24 (1): 217-223.
::CrossRef::Google Scholar::
Jung V, Violle C, Mondy C, Hoffmann L, Muller S (2010). Intraspecific variability and trait-based community assembly. Journal of Ecology 98: 1134-1140.
::CrossRef::Google Scholar::
Kamiyama C, Katabuchi M, Sasaki T, Shimazaki M, Nakashizuka T, Hikosaka K (2014). Leaf-trait responses to environmental gradients in moorland communities: contribution of intraspecific variation, species replacement and functional group replacement. Ecological Research 29: 607-617.
::CrossRef::Google Scholar::
Kanaga MK, Ryel RJ, Mock KE, Pfrender ME (2008). Quantitative-genetic variation in morphological and physiological traits within a quaking aspen (Populus tremuloides) population. Canadian Journal of Forest Research 38 (6): 1690-1694.
::CrossRef::Google Scholar::
Li L, Li C, Li P, Zhang L, Li D, Liu R, Xiao Z (2008). Precocity and high-yield experiment of 15 Swida wilsoniana clones. Hunan Forestry Science and Technology 35 (6): 34-37.
::Online::Google Scholar::
Li X, Hou S, Su M, Yang M, Shen S, Jiang G, Qi D, Chen S, Liu G (2010). Major energy plants and their potential for bioenergy development in China. Environmental Management 46: 579-589.
::CrossRef::Google Scholar::
Li Y, Wang X, Chen J, Cai N, Zeng H, Qiao Z, Wang X (2015). A method for micropropagation of Cornus wilsoniana: an important biofuel plant. Industrial Crops and Products 76: 49-54.
::CrossRef::Google Scholar::
Liu MR, Yin SP, Si DJ, Shao LT, Li Y, Zheng M, Wang FW, Li SC, Liu GF, Zhao XY (2015). Variation and genetic stability analyses of transgenic TaLEA poplar clones from four different sites in China. Euphytica 206 (2): 331-342.
::CrossRef::Google Scholar::
Marron N, Dillen SY, Ceulemans R (2007). Evaluation of leaf traits for indirect selection of high yielding poplar hybrids. Environmental and Experimental Botany 61: 103-116.
::CrossRef::Google Scholar::
Marron N, Villar M, Dreyer E, Delay D, Boudouresque E, Petit JM, Brignolas F (2005). Diversity of leaf traits related to productivity in 31 Populus deltoides × Populus nigra clones. Tree Physiology 25 (4): 425-435.
::CrossRef::Google Scholar::
Monclus R, Dreyer E, Delmotte FM, Villar M, Delay D, Boudouresque E, Petit JM, Marron N, Bréchet C, Brignolas F (2005). Productivity, leaf traits and carbon isotope discrimination in 29 Populus deltoids × P. nigra clones. New Phytologist 167: 53-62.
::CrossRef::Google Scholar::
Müller A, Horna V, Kleemann F, Vornam B, Leuschner C (2013). Physiological vs. morphological traits controlling the productivity of six aspen full-sib families. Biomass and Bioenergy 56: 274-283.
::CrossRef::Google Scholar::
Müller A, Leuschner C, Horna V, Zhang C (2012). Photosynthetic characteristics and growth performance of closely related aspen taxa: on the systematic relatedness of the Eurasian Populus tremula and the North American P. tremuloides. Flora 207 (2): 87-95.
::CrossRef::Google Scholar::
Navas ML, Garnier E (2002). Plasticity of whole plant and leaf traits in Rubia peregrina in response to light, nutrient and water availability. Acta Oecologica 23 (6): 375-383.
::CrossRef::Google Scholar::
Nelson CJ (1988). Genetic association between photosynthetic characteristics and yield: review of evidence. Plant Physiology and Biochemistry 26: 543-554.
::Google Scholar::
Niinemets U, Valladares F (2004). Photosynthetic acclimation to simultaneous and interacting environmental stresses along natural light gradients: optimality and constraints. Plant Biology 6 (3): 254-268.
::CrossRef::Google Scholar::
O’Brien EK, Mazanec RA, Krauss SL (2007). Provenance variation of ecologically important traits of forest trees: implications for restoration. Journal of Applied Ecology 44 (3): 583-593.
::CrossRef::Google Scholar::
Pellis A, Laureysens I, Ceulemans R (2004). Growth and production of a short rotation coppice culture of poplar. I. Clonal differences in leaf characteristics in relation to biomass production. Biomass and Bioenergy 27: 9-19.
::CrossRef::Google Scholar::
Pliura A, Zhang SY, MacKay J, Bousquet J (2007). Genotypic variation in wood density and growth traits of poplar hybrids at four clonal trails. Forest Ecology and Management 238: 92-106.
::CrossRef::Google Scholar::
Ponton S, Dupouey J-L, Bréda N, Feuillat F, Bodenes C, Dreyer E (2001). Carbon isotope discrimination and wood anatomy variations in mixed stands of Quercus robur and Quercus petraea. Plant, Cell and Environment 24: 861-868.
::CrossRef::Google Scholar::
Poorter H, Garnier E (1999). Ecological significance of inherent variation in relative growth rate. In: “Handbook of Functional Plant Ecology” (Pugnaire F, Valladares X eds). Marcel Dekker, New York, USA, pp. 81-120.
::Online::Google Scholar::
Rae AM, Robinson KM, Street NR, Taylor G (2004). Morphological and physiological traits influencing biomass productivity in short rotation coppice poplar. Canadian Journal of Forest Research 34: 1488-1498.
::CrossRef::Google Scholar::
Rawat K, Bakshi M (2011). Provenance variation in cone, seed and seedling characteristics in natural populations of Pinus wallichiana AB Jacks (Blue Pine) in India. Annals of Forest Research 54 (1): 39-55.
::Online::Google Scholar::
Reddy BK, Rao DMR, Reddy MP, Jayaram RH, Suryanarayana N (2003). Variation of chlorophyll content and its relationship with leaf area and leaf yield in mulberry genotypes (Morus spp.). Advances in Plant Sciences 16 (1): 277-280.
::Google Scholar::
Safavi SA, Pourdad SA, Mohmmad T, Mahmoud K (2010). Assessment of genetic variation among safflower (Carthamus tinctorius L.) accessions using agro-morphological traits and molecular markers. Journal of Food, Agriculture and Environment 8: 616-625.
::Online::Google Scholar::
Selaya NG, Anten NPR (2008). Differences in biomass allocation, light interception and mechanical stability between lianas and trees in early secondary tropical forest. Functional Ecology 22 (1): 30-39.
::CrossRef::Google Scholar::
Shao H, Chu L (2008). Resource evaluation of typical energy plants and possible functional zone planning in China. Biomass and Bioenergy 32: 283-288.
::CrossRef::Google Scholar::
Singh M, Ceccarelli S, Hamblin J (1993). Estimation of heritability from varietal trials data. Theoretical and Applied Genetics, 86: 437-441.
::Online::Google Scholar::
Thumma BR, Naidu BP, Chandra A, Cameron DF, Bahnisch LM, Liu C (2001). Identification of causal relationships among traits related to drought resistance in Stylosanthes scabra using QTL analysis. Journal of Experimental Botany 52: 203-214.
::CrossRef::Google Scholar::
Valladares F, Martinez-Ferri E, Balaguer L, Perez-Corona E, Manrique E (2000). Low leaf-level response to light and nutrients in Mediterranean evergreen oaks: a conservative resource-use strategy? New Phytologist 148: 79-91.
::CrossRef::Google Scholar::
Veneklaas EJ, Santos Silva MPRM, Den Ouden F (2002). Determinants of growth rate in Ficus benjamina L. compared to related faster-growing woody and herbaceous species. Scientia Horticulturae 93: 75-84.
::CrossRef::Google Scholar::
Verlinden MS, Broeckx LS, Van Den Bulcke J, Van Acker J, Ceulemans R (2013). Comparative study of biomass determinants of 12 poplar (Populus) genotypes in a high-density short-rotation culture. Forest Ecology and Management 307: 101-111.
::CrossRef::Google Scholar::
Violle C, Enquist BJ, McGill BJ, Jiang LIN, Albert CH, Hulshof C, Messier J (2012). The return of the variance: intraspecific variability in community ecology. Trends in Ecology and Evolution 27 (4): 244-252.
::CrossRef::Google Scholar::
Wang G, Liu J, Meng T (2015). Leaf trait variation captures climate differences but differs with species irrespective of functional group. Journal of Plant Ecology 8 (1): 61-69.
::CrossRef::Google Scholar::
Weih M (2009). Genetic and environmental variation in spring and autumn phenology of biomass willows (Salix spp.): effects on shoot growth and nitrogen economy. Tree Physiology 29 (12): 1479-1490.
::CrossRef::Google Scholar::
Weiher E, Freund D, Bunton T, Stefanski A, Lee T, Bentivenga S (2011). Advances, challenges and a developing synthesis of ecological community assembly theory. Philosophical Transactions of the Royal Society of London B: Biological Sciences 366 (1576): 2403-2413.
::CrossRef::Google Scholar::
Wright GC, Rao RCN, Farquhar GD (1994). Water-use efficiency and carbon isotope in peanuts under water deficit conditions. Crop Science 34: 92-97.
::CrossRef::Google Scholar::
Yu Q, Pulkkinen P, Rautio M, Haapanen M, Alen R, Stener LG (2001). Genetic control of wood physicochemical properties, growth, and phenology in hybrid aspen clones. Canadian Journal of Forest Research 31 (8): 1348-1356.
::CrossRef::Google Scholar::
Zhao X, Xia H, Wang X, Wang C, Liang D, Li K, Liu G (2016). Variance and stability analyses of growth characters in half-sib Betula platyphylla families at three different sites in China. Euphytica 208 (1): 173-186.
::CrossRef::Google Scholar::


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Cheng X, Xie H, Zhang L, Wang M, Li C, Yu M, He Z (2017).
A comparative study of growth and leaf trait variation in twenty Cornus wilsoniana W. families in southeastern China
iForest - Biogeosciences and Forestry 10: 759-765. - doi: 10.3832/ifor2288-010
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Paper ID# ifor2288-010
Title A comparative study of growth and leaf trait variation in twenty Cornus wilsoniana W. families in southeastern China
Authors Cheng X, Xie H, Zhang L, Wang M, Li C, Yu M, He Z
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