杭州不同海拔地区甜樱桃花芽内含物及内源激素差异比较  

Comparison of carbohydrate contents and endogenous hormones in sweet cherry flower buds between different altitude areas in Hangzhou

作　　者：张琛[1] 刘辉[1] 阮若昕 骆慧枫 黄康康[1] 郗笃隽[1] 裴嘉博[1] 沈国正[1] ZHANG Chen;LIU Hui;RUAN Ruoxin;LUO Huifeng;HUANG Kangkang;XI Dujun;PEI Jiabo;SHEN Guozheng(Institute of Horticulture,Hangzhou Academy of Agricultural Sciences,Hangzhou 310024,Zhejiang,China)

机构地区：[1]杭州市农业科学研究院园艺研究所,杭州310024

出　　处：《果树学报》2025年第2期348-359,共12页Journal of Fruit Science

基　　金：浙江省公益研究计划项目(LGN21C150005);杭州市农科院科技创新与示范推广基金(2022HNCT-06);杭州市级农科院联盟区域示范性项目(2022SJLM02)。

摘　　要：【目的】通过比较杭州地区不同海拔甜樱桃在不同发育阶段花芽内营养物质含量与内源激素含量的差异,从生理水平揭示杭州低海拔地区甜樱桃产量较低的原因。【方法】以萨米脱为试材,比较杭州高山和平地地区在休眠前、休眠中、花芽萌动前花芽内含物含量和内源激素含量的差异,对两地各阶段花芽内含物水平进行主成分分析,并利用灰色关联分析和GRA-SVM模型分析花芽质量和指标之间的关联程度。【结果】两地区甜樱桃在不同发育阶段花芽内含物含量的变化规律基本相同,但含量的水平不同。在花芽萌动前,高山地区甜樱桃花芽内游离氨基酸的含量是平地的1.22倍;山梨醇、果糖、葡萄糖含量分别是平地的1.21、1.18、1.11倍;细胞分裂素(CTKs)和赤霉素(GAs)的含量均高于平地,CTKs/GAs比值是平地的1.02倍。主成分分析表明,经过休眠期的积累,高山地区甜樱桃花芽内含物含量已高于平地,直至花芽萌动前仍高于平地。GRA-SVM模型分析表明花芽质量与花芽内含物各指标间具有不同程度的关联性。【结论】杭州低海拔地区甜樱桃自休眠中至花芽萌动前花芽内含物含量的整体水平较高山地区低,利用GRASVM模型可进一步揭示某些内含物含量偏低是造成低海拔地区甜樱桃花芽质量较低的内在生理原因。【Objective】Sweet cherry(Prunus avium L.)originated in Europe,is the earliest mature deciduous fruit crop in the north of China,famous for"the first spring fruit".With the rapid development of sweet cherry production in the 1990s,its cultivation range and quantity have been greatly expanded.It was reported that sweet cherry could obtain stable and high yield in the high altitude region in southwest China,where it was classified as a suitable planting area for sweet cherry.Now sweet cherry has also become an emerging industry for farmers in high altitude cold region to generate income.It can be seen that the high altitude areas in the south China with similar habitats also have the climatic conditions for successful cultivation of sweet cherries.Flowers are the reproductive organs of plants,the quantity of flower bud development are closely related to the fruit traits and yield at fruiting stage.Carbohydrate is an important material basis for flower bud development.Flower bud differentiation of sweet cherry goes through three stages:physiological initiation,morphological differentiation and flower organ formation,among which flower organ formation occurs in the spring of the following year after winter dormancy.As a typical fruit tree with first flowering and then sprouting leaf,the energy and material required for flower organ development in spring of sweet cherry depend on the accumulation of nutrients within the tree in the previous growing season.Therefore,the study on carbohydrate contents and endogenous hormone levels in the flower bud during dormancy,especially before the flower bud sprouting,has certain guidance for the analysis of flower bud quality and following yield.In this paper,the difference in carbohydrate content and endogenous hormone level in flower buds of sweet cherry between different altitude areas in Hangzhou were compared,in order to reveal the reason for low yield of sweet cherry in low altitude region of Hangzhou at the physiological level.【Methods】Five years old sweet cherry tree

关 键 词：甜樱桃 营养物质 内源激素 海拔 杭州 

分 类 号：S662.5[农业科学—果树学]