中国农业科学 ›› 2021, Vol. 54 ›› Issue (11): 2389-2405.doi: 10.3864/j.issn.0578-1752.2021.11.012

• 园艺 • 上一篇    下一篇

葡萄种质资源花穗形状分类标准的建立及其动态发育过程分析

黄雨晴1(),孙艳艳1(),罗荣峥1,阿旺措姆1,卢素文1(),樊秀彩2,王晨1,刘崇怀2(),房经贵1   

  1. 1南京农业大学园艺学院,南京 210095
    2中国农业科学院郑州果树研究所,郑州 450009
  • 收稿日期:2020-08-10 接受日期:2021-01-13 出版日期:2021-06-01 发布日期:2021-06-09
  • 通讯作者: 卢素文,刘崇怀
  • 作者简介:黄雨晴,E-mail:2018104029@njau.edu.cn。|孙艳艳,E-mail:541654994@qq.com
  • 基金资助:
    国家自然科学基金(31672131);国家自然科学基金(31872047);江苏现代农业产业技术体系建设项目(JATS[2019]422);国家大学生创新创业训练计划(201910307013Z);江苏省品牌专业(PPZY2015B156)

A New Classification Standard for Different Grape Cluster Shapes and Investigation on Cluster Shape Dynamic Development Process

HUANG YuQing1(),SUN YanYan1(),LUO RongZheng1,Awangcuomu 1,LU SuWen1(),FAN XiuCai2,WANG Chen1,LIU ChongHuai2(),FANG JingGui1   

  1. 1College of Horticulture, Nanjing Agricultural University, Nanjing 210095
    2Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009
  • Received:2020-08-10 Accepted:2021-01-13 Online:2021-06-01 Published:2021-06-09
  • Contact: SuWen LU,ChongHuai LIU

摘要:

【目的】葡萄是重要的经济果树,果穗形状会影响其经济价值。本研究跟踪调查255份葡萄种质资源的果穗发育过程,建立新的花序形状并完善果穗形状分类标准,为葡萄生产提供理论支撑。【方法】田间跟踪调查255份葡萄种质资源的花穗长宽发育情况,在开花期、果实膨大期以及果实成熟期3个关键时期测量主穗长宽、小穗长宽、小穗角度、果粒横纵径、果粒重以及果柄长,分析果穗形状动态发育过程中各指标变化规律。【结果】基于255份葡萄种质资源的田间调查结果,将花序与果穗形状分为长圆锥、短圆锥、长圆柱、短圆柱并建立新的花序与果穗形状分类标准。调查发现,在葡萄花序发育过程中,52.55%的花序会发生形状变化,以长圆柱花序居多,大多发育为短圆柱果穗。因此,果穗形状形成类型有16种。对葡萄穗长穗宽的分析发现,长圆锥花序在发育过程中具有较高的“稳定性”,对于短圆锥、长圆柱、短圆柱花序而言,穗长对形状影响更大,进一步探究发现小穗长/宽以及小穗角度尤其是上部小穗的长宽与角度是影响花穗形状外缘的主要因素。【结论】本研究将花序与果穗形状分为长圆锥、短圆锥、长圆柱、短圆柱4种,提出了一个花序、果穗的形状分类标准的计算方法,同时对调查数据进行了实际计算与分类。一半以上葡萄花序的形状会发生变化,圆锥花序的形状较稳定。穗长、穗宽、小穗长宽及小穗角度对穗形影响较大,分别表现在影响形状的长宽和外缘,尤其是上部小穗的长宽与角度是影响柱锥判断的最主要原因。小穗角度的变化会影响小穗反映在形状上的有效长度。本研究进一步提出了基于花穗形状的整形修剪方法,可为葡萄的整形修剪提供理论基础。

关键词: 葡萄, 花序, 果穗, 分类标准, 形状变化

Abstract:

【Objective】Grape is an important economic fruit tree, whose economic value was affected by the cluster shape. The study investigated the cluster development of 255 grape germplasm resources to establish a new classification standard including the detailed classification method of grape inflorescence and cluster shape, in order to provide new theoretical support for grape production. 【Method】The cluster length and width variation of 255 grape germplasm resources were tracked in the field. From three key growth periods (flowering, fruit expansion and fruit maturity), cluster length and width, six spikelet length and width, spikelet angle, fruit grain diameter, fruit grain weight and carpopodium length were measured to analyze the variation modes during dynamic development process of cluster shape. 【Result】According to the investigation of 255 grape germplasm resources, a new classification standard was established to divide the shape into long conical, short conical, long cylindrical and short cylindrical. It was found that 52.16% of inflorescence would change shape during the development process, and most of them was the long cylindrical inflorescence which could develop into short cylindrical cluster. Therefore, there were 16 cluster shape change types. The analysis of cluster length and width showed that the long conical cluster had high “stability” during the development process, and the length had more influence on shape for short conical, long cylindrical and short cylindrical clusters. Further investigation represented that the length, width and angle of spikelet, especially the top spikelet were the main factors affecting the outer edge of cluster shape. 【Conclusion】The study divided inflorescence and cluster shapes into four types: long cone, short cone, long cylinder and short cylinder, and a based classification standard was established. It was found through investigation that more than half of grape inflorescences changed in shape, of which the conical type was relatively stable. Cluster length and width, spikelet length, width and angle had more influence on shape change, which were reflected in the indicators and outer edge, especially the figures of top spikelet angle were the main affection to judge type. Spikelet angle variations reflected on the effective length in the shape. This study further proposed pruning method based on the shape of inflorescences and clusters, in order to provide theoretical basis for grape management.

Key words: Vitis vinifera, inflorescence, cluster, classification standard, shape change