太原理工大学学报2017，Vol.48Issue(5)：798-804,810,8.DOI:10.16355/j.cnki.issn1007-9432tyut.2017.05.017
SH矮砧苹果幼树滴灌条件下适宜灌水上限试验研究
Experimental Research on Reasonable Drip Irrigation Upper Limit of Young SH Dwarf Apple Trees
摘要
Abstract
Drip irrigation is a kind of modern water-saving technology,moist soil and root zone distribution is consistent.It can use water resources effectively,improve the utilization coef-ficient of irrigation water.SH dwarf rootstock is bred by Institute of Pomology,Shanxi Academy of Agricultural Sciences,to adapt to China's natural conditions.To determine reasonable drip ir-rigation upper limit of young SH dwarf apple trees,we conducted an experiment to test the phys-iological indexes under the condition of different irrigation upper limit in arid and semi-arid area of Jinzhong,Shanxi.With four kinds of irrigation treatment T1,T2,T3 and T4 as test sets and surface irrigation CK as the control,the influence on leaf water potential in the early morning, new shoots growth,trunk diameter and photosynthesis properties was analyzed.It is concluded that the most suitable irrigation upper limit is 90% water-holding capacity when the lower limit is 60% by using principal component analysis.This level is most appropriate to the growth of young SH dwarf apple tree in test area.The results can provide reference and guidance for pilot production.关键词
滴灌/SH矮砧苹果幼树/灌水上限/叶水势/新梢生长量/光合特性Key words
drip irrigation/young SH dwarf apple tree/irrigation upper limit/leaf water po-tential/new shoot growth/photosynthesis properties分类
农业科技引用本文复制引用
贾俊杰,马娟娟,郭向红,孙西欢,杨凯..SH矮砧苹果幼树滴灌条件下适宜灌水上限试验研究[J].太原理工大学学报,2017,48(5):798-804,810,8.基金项目
国家自然科学基金资助项目(51579168) （51579168）
山西省科技攻关项目(20140311016-2) （20140311016-2）
山西省科技重点研发项目(2015-TN-03-07) （2015-TN-03-07）
