油桃‘沪油018’不同冠层部位结果情况的调查与相关性分析  

Analysis on the Bearing and Correlation of Different Canopy Position in Nectarine cultivar‘Huyou 018’

作　　者：王涛[1] 陈伟立[1] 叶正文[2] 杜纪红[2] 陈丹霞[1] 黄雪燕[1] 

机构地区：[1]温岭市农业林业局,浙江温岭317500 [2]上海市农业科学院林木果树研究所,上海201106

出　　处：《中国农学通报》2012年第1期279-283,共5页Chinese Agricultural Science Bulletin

基　　金：浙江省农业科技成果转化项目"优质大果型早熟甜油桃新品种‘沪油018’的中试与示范"(2010D70105);温岭市科技项目"山地果园高效;绿色;生态栽培模式研究及产业化示范"(2007D02005)

摘　　要：对3年生油桃‘沪油018’开心形树冠的果实着生情况、着色情况、裂果情况和发病情况等进行调查,把冠层分为向阳面和背阴面各12个区域进行统计分析。结果表明:油桃冠层向阳面果实数和产量比背阴面多74.9%和68.2%,冠层垂直方向以上、中部结果为主,冠层水平方向以中部结果为主。背阴面的发病率较高,裂果指数和病情指数比向阳面分别增加24.7%和80.1%。冠层垂直方向着色指数、裂果率和裂果指数均以树冠顶部最高,冠层水平方向着色指数、裂果率、裂果指数和发病率均以外部最高。果实离地高度与病害度呈显著负相关,距中距离与裂果度呈显著正相关;单果重与着色度、裂果度均呈极显著正相关,裂果度与病害度也呈极显著正相关。在浙东沿海地区种植油桃‘沪油018’应注意改良树体结构、合理疏花疏果、加强夏季修剪和及时防治疮痂病等病虫害。It was observed in the 3-year-old Pmnus persica var. nectarine ＇Huyou 018＇ which was open centre model about skin color index, the rate of creaking fruit and disease incidence. The canopy was divided sunny slope area and shady area for 12 space region separately to statistical analysis. It was shown that the sunny slope fruit number and yield were 74.9% and 68.2% higher than shady side, in the vertical direction, the fruit was mainly set in the upper part and middle part, in horizontal direction the fruit was mainly set in the central part. The indices of crack fruit and disease index in shady side was 24.7% and 80.1% higher than sunny side. The skin color index, the rate of creaking fruit and disease incidence were higher in top than bottom, external than internal. The height from ground to fruit position had significant negative correlation with the disease incidence, and the distance from fruit position to center had a positive correlation with the rate of cracking fruit. The weight of single fruit had significant positive correlation with skin color index and the rate of cracking fruit, the rate of creaking fruit had positive correlation with disease incidence. Plant Prunus persica var. nectarine ＇Huyou 018＇ in the coastal area of east Zhejiang need to notice to modifying tree form, thinning flower and fruit properly, strengthening summer pruning and preventing and treatment pests and diseases such as the scab in time.

关 键 词：油桃'沪油018’ 冠层 果实 裂果 着色指数 

分 类 号：S661.2[农业科学—果树学]