Preliminary study on calculation method of leaf area and leaf biomass of Castanea crenata
In this study,two cultivars of Castanea crenata,Liaoli No.10 and Dafeng were token as test materials.Based on the measurement of leaf length,leaf width,single leaf area,single leaf dry weight,crown width,crown height and the leaf biomass of individual plants,the reaches were carried out on the difference in leaf length-width ratio and specific leaf area of different cultivars,the relationship of leaf length,leaf width and the product of leaf length and width with leaf area,and the relationship of crown width and crown height with the leaf biomass of individual plants.The research results shown that there was no obvious difference in the leaf length-width ratio and specific leaf area of different cultivars;unitary regression equation fit on the leaf length,the leaf width and the product of the leaf length and width and the leaf area of Castanea crenata indicated that both determination coefficient and correction determination coefficient reached a significant level（P〈0.0001）,the unary quadratic regression equation of the product of the leaf length and width and leaf area had the best regression effect with the determination coefficient of 0.987 9 and the correction determination coefficient of 0.987 7;the binary linear regression relationship of the leaf biomass of individual plants with crown width and crown height reached a significant level（P〈0.0001）,the determination coefficient was 0.987 9 and the correction determination coefficient was 0.987 7.In production,the leaf biomass and leaf area indexes of individual plants could be calculated through the measurement on crown width and crown height.The method is simple to operate and has higher application value.
Castanea crenataleaf arealeaf biomassspecific leaf area
NETL
NSTL
万方数据
维普
