新疆农业科学2025，Vol.62Issue(2)：343-349,7.DOI:10.6048/j.issn.1001-4330.2025.02.010
拉枝角度对骏枣光合特性和果实品质的影响
Effects of branch pulling angles on photosynthetic characteristics and fruit quality of jujube
摘要
Abstract
[Objective]To investigate the effects of pulling on leaf size,chlorophyll content,photosyn-thetic parameters and fruit quality with the aim of screening the appropriate angle of pulling for high quality production of jujube.[Methods]Three levels of pulling treatments at 70°,90° and 110° were carried out on the date head branches of the main stem-shaped jujube,with no pulling as the control,and then differences in leaf size,chlorophyll content,photosynthetic characteristics and fruit quality were analyzed at different pul-ling angles.[Results]The results showed that leaf size and chlorophyll content(SPAD)were significantly higher in the pulling 90° treatment than in the control,and leaf area and chlorophyll content(SPAD)were significantly higher in the pulling 70° and 110° treatments.The daily mean values of Pn,Gs and Tr of leaves in the pulling 90° treatment were significantly higher than those in the pulling 70°,110° and control,which were 13.36 μmol/(m2·s),0.36 mol/(m2·s)and 10.29 mmol/(m2·s),respectively,and the daily changes of Pn,Gs,Ci and Wue in the three pulling treatments and the control showed a bimodal curve.The average single fruit weight,soluble solids content,vitamin C content,and soluble sugar content were signifi-cantly higher in the treatments with a pulling angle of 90° than in the treatments with a pulling angle of 70°,110°,and the control.[Conclusion]The suitable branch pulling angle of trunk Junzao is 90°,which is bene-ficial to the leaf growth,photosynthetic characteristics and fruit quality improvement of trunk Junzao.关键词
骏枣/拉枝角度/光合特性/果实品质Key words
jujube/branch pulling angles/photosynthetic characteristics/fruit quality分类
园艺学与植物营养学引用本文复制引用
尹美霖,林敏娟,井双泉,熊仁次..拉枝角度对骏枣光合特性和果实品质的影响[J].新疆农业科学,2025,62(2):343-349,7.基金项目
新疆生产建设兵团科技计划项目"南疆枣园持续提质增效关键技术研究与示范"(2023AB004-04) Science and Technology Program Project"Research and Demonstration of Key Technologies for Continuous Quality Improvement and Efficiency Improvement of Jujube Orchard in Southern Xinjiang"(2023AB004-04) （2023AB004-04）
