桃树修剪后树相参数与产量的相关性研究

以6年生‘燕红’和‘沙红’桃树为试材,调查冬季桃树修剪前后枝量、修剪量、夏剪量,统计分析了其与产量之间的关系。结果表明,在一定的区间内,燕红和沙红的产量随着修剪率和留枝量的升高呈现先升高后降低的趋势,在修剪率为34.63%、43.37%时,产量达到最高,为17.81、7.17 kg;留枝量为134、110时,产量达到最高,为20.58、7.04 kg;长枝率为14.14%、27.35%时,燕红和沙红产量最高,为19.94、7.04 kg;燕红和沙红的产量随着中短枝率的升高整体呈现先降后升的趋势,在中短枝率为59.56%、54.36%时,产量达到最低,为14.20、4.18 kg。通过回归分析得出,燕红和沙红产量与修剪率(燕红17.89%~59.03%、沙红18.90%~62.34%)、留枝量(燕红:94~185个、沙红:73~146个)均呈二次项回归模型;燕红产量与长枝率无相关关系,沙红产量与长枝率(4.61%~27.35%)呈线性关系;燕红、沙红产量与中短枝率(燕红43.28%~73.06%、沙红39.22%~69.58%)呈二次项回归模型。

Study on Correlation Between the Parameters of Tree Phase and Yields of Peach After Trimming

Six-year-old‘Yanhong’and‘Shahong’as the test materials,Investigate the relationship between the amount of branches,the amount of pruning and the amount of summer shears before and after pruning in winter,and analyze the relationship between them and yield.The results showed that in a certain range,The yields of"Yanhong"and"Shahong"showed the trend of first increasing and then decreasing with the increase of the pruning rate and the remaining branch,when the pruning rate were 34.63%,43.37%,the yield reached the highest,the yield were 14.20、4.18 kg.when the remaining branch were 134、110,the yield reached the highest,the yield were 20.58、7.04 kg.when the rate of long branches were 14.14%,27.35%,the yield of‘Yanhong’and‘Shahong’reached the highest,the yield were 19.94、7.04 kg.The yield of'Yanhong'and'Shahong'showed the trend of decreasing first and then rising with the increase of middle and short branch rate,when the ratio of middle and short branch were 59.56%、54.36%,the yield reached the lowest,the yield were14.20、4.18 kg.Through regression analysis,the yield and the pruning rate of‘Yanhong’and‘Shahong’(Yanhong:17.89%~59.03%,Shahong:18.90%~62.34%),and the remaining branch(Yanhong:94~185,Shahong:73~146)were quadratic regression model.There was no correlation between the yield of‘Yanhong’and the rate of long branches,but between the yield of'Shahong'and the rate of long branches(4.61%~27.35%)was the linear relationship.the yield of'Yanhong'and'Shahong'and the ratio of middle and short branch(Yanhong:43.28%~73.06%、Shahong:39.22%~69.58%)were quadratic regression model.