南方农业学报2017，Vol.48Issue(1)：57-65,9.DOI:10.3969/j:issn.2095-1191.2017.01.57
桂南一年两收栽培夏黑葡萄花芽分化进程调控
Regulation of flower bud differentiation process of Summer Black Grape cultivated in two-crop-a-year mode in southern Guangxi
摘要
Abstract
[Objective]The present study explored the key period for flower bud differentiation of Summer Black Grape in different regulation measures,in order to provide reference and guidance for regulation of flower bud differentiation of Summer Black Grape in two-crop-a-year cultivation in southern Guangxi.[Method]Eight-year-old Summer Black Grape seedlings were used as materials.When the shoots grew five-seven leaves,buds at the sixth node were sampled weekly and made into paraffin sections.Effects of different summer pruning intensities(pinching at the second node above anthotaxy,pinching at the forth node above anthotaxy and pinching at the sixth node above anthotaxy) and different concentrations of ethephon spraying treatments (200,400 and 800 mg/L) on flower bud differentiation process and flower formation rate in two-crop-a-year cultivation in southern Guangxi.[Result]In different summer pruning intensity treatments,the time span between beginning of flower bud differentiation (March 29) of wiuter buds on shoots and formation of flower cluster(April 27-May 4) was 29-37 days,which was 14-22 days shorten than that in control group(no pinching and no ethephon spraying).The key period for flower bud differentiation was around April 13 (full flowering stage).After different summer pruning intensity treatments,flower bud differentiation of the sixth node on shoots was concentrated with short duration and high flower formation rate(53.3％-73.3％).On the contrary,different concentrations of ethephon spraying resulted in dispersed stages of flower bud differentiation,longer duration (52 days) and lower flower formation rate (33.3％-关键词
夏黑葡萄/花芽分化/调控措施/一年两收栽培/成花率Key words
Summer Black Grape/flower bud differentiation/control measure/two-crop-a-year cultivation/flower formation rate分类
农业科技引用本文复制引用
林玲,王博,曹慕明,郭荣荣,谢蜀豫,韩佳宇,盘丰平,陈国品,王世平,白先进..桂南一年两收栽培夏黑葡萄花芽分化进程调控[J].南方农业学报,2017,48(1):57-65,9.基金项目
国家自然科学基金项目(31460501,31401821) （31460501,31401821）
广西八桂学者建设工程专项项目(2011A019) （2011A019）
生态广西建设引导资金项目(20140096) （20140096）
