江西农业学报2017，Vol.29Issue(3)：66-69,79,5.DOI:10.19386/j.cnki.jxnyxb.2017.03.14
桃树主干形和开心形冠层结构特征与果实质地关系的研究
Characteristics of Canopy Structure and Its Relationship with Fruit Texture of Main-trunk-type and Open-central-type Peach Tree
摘要
Abstract
The characteristics of canopy structure of main-trunk-type and open-central-type "Okubo" peach trees were studied by using CI-110 plant canopy analyzer, and the relationship between canopy structure and fruit texture was analyzed.The results showed that the sunfleck value, photosynthetically active radiation and gap fraction of main-trunk-type peach trees were significantly lower than those of open-central-type peach trees, while the leaf area index and mean leaf dip angle of the former were significantly higher than those of the latter.The cohesiveness, gumminess and chewiness of open-central-type peach trees were respectively 24.00%, 28.68% and 27.31% higher than those of main-trunk-type peach trees, and the differences all reached a very significant level.Whereas, the adhesiveness of open-central-type peach trees was 64.1% lower than that of main-trunk-type peach trees.The consistency of fruit texture in different positions of open-central-type peach trees was better than that of main-trunk-type peach trees.The significant correlations were found between the canopy characteristics parameters and fruit texture indexes, for example: the leaf area index was very significantly negatively correlated to the cohesiveness, springiness, gumminess and chewiness, but it was very significantly positively correlated to the adhesiveness;the mean leaf dip angle had a very significantly negative correlation with the springiness and chewiness;the gap fraction was very significantly positively correlated to the cohesiveness, springiness, gumminess and chewiness, but it was very significantly negatively correlated to the adhesiveness.Therefore, leaf area index, mean leaf dip angle and gap fraction can initially be used as the main indicators of canopy analysis.关键词
桃树/主干形/开心形/果实质地Key words
Peach tree/Main-trunk type/Open-central type/Fruit texture分类
农业科技引用本文复制引用
李永红,王召元,常瑞丰,张立莎,陈湖,徐金涛,韩继成,刘国俭..桃树主干形和开心形冠层结构特征与果实质地关系的研究[J].江西农业学报,2017,29(3):66-69,79,5.基金项目
河北省省级预算项目(F17R06006) （F17R06006）
国家现代桃产业技术体系项目(CARS-31-Z-03) （CARS-31-Z-03）
河北省农林科学院昌黎果树研究所青年科技基金(cgs-07). （cgs-07）
