摘要
为寻找影响板栗产量的主要因子，作者用数理统计的方法，通过对江苏省新沂市沭河果园４种不同密度８ａ生板栗密植园单株产量及与其相关产量构成因子的简单相关分析和逐步回归分析，得到了包括结果母枝数、主干截面积、结果母枝抽生结果枝数和单粒重在内的最优多元线性回归方程；再对入选的４个主要性状进行通径分析，明确了在保证树干一定粗度生长的条件下，保留适宜的结果母枝数，促进母枝抽生结果枝，是板栗丰产栽培的关键技术措施。
The relationship between the yield and the relative yield components was studied in the 8 year old trees in four different high densities orchards of chestnut in Xin Yi county,Jiangsu province.It was found that the number of fruit mother brances,the area of stem transverse section at 10cm height above ground ,the number of fruit bearing twigs and the weight per fruit were the major factors to affect chestnut tree's yield.The optimal regression equation for predicting yield per plant was obtained by using relative and stepwise analysis.Then,it is the key measures , by path analysis on each main yield components selected, for increasing chestnut yield to maintain suitable number of fruit mother branches and to promote the fruit mother branch to produce more fruit bearing twigs.
出处
《河北林果研究》
1998年第2期166-169,共4页
Hebei Journal of Forestry and Orchard Research
关键词
板栗
产量构成
通径分析
Chestnut(Castanea mollissima)
yield forming
path analysis
