枇杷叶片性状与单果质量的遗传规律研究  

Study on Inheritance Patterns of Leaf Traits and Fruit Weight in Loquat

作　　者：郭乙含 赵崇斌 李舒庆 徐红霞[2] 黄天启 林顺权[1] 陈俊伟[2] 杨向晖[1] GUO Yihan;ZHAO Chongbin;LI Shuqing;XU Hongxia;HUANG Tianqi;LIN Shunquan;CHEN Junwei;YANG Xianghui(Key Laboratory of Biology and Genetic Improvement of Horticultural Crops(South China),Ministry of Agriculture and Rural Affairs,College of Horticulture,South China Agricultural University,Guangzhou 510642,China;Institute of Horticulture,Zhejiang Academy of Agricultural Sciences,Hangzhou 310021,China)

机构地区：[1]华南农业大学园艺学院,农业农村部华南地区园艺作物生物学与种质创制重点实验室,广州510642 [2]浙江省农业科学院园艺研究所,杭州310021

出　　处：《热带亚热带植物学报》2023年第1期62-68,共7页Journal of Tropical and Subtropical Botany

基　　金：国家重点研发计划项目(2019YFD1000900);浙江省果品新品种选育重大科技专项重点项目(2016C02052-3)资助。

摘　　要：为了解枇杷(Eriobotrya japonica)叶片性状和单果质量的遗传多样性及其相关性,对‘宁海白’与‘大房’杂交组合的F1群体(123株)的7个叶片性状与单果质量进行相关分析。结果表明,叶片的长度、宽度、厚度和叶柄长度及单果质量5个性状在后代中均呈现连续性较好的正态分布,其中单果质量、叶片的长度、宽度和厚度呈趋小遗传趋势,叶柄长度呈趋中变异趋势。F_(1)杂交群体叶面形态主要以“稍皱”为主,叶片形状以“椭圆形”为主,叶基形状以“楔形”为主。单果质量与叶柄长度、叶片长度、叶片宽度、叶片厚度均表现出极显著的正相关性。因此,叶柄长度可考虑作为早期筛选大果优株的参考指标之一。In order to understand the genetic diversity and correlation of leaf traits and fruit weight in loquat(Eriobotrya japonica), the correlation between 7 leaf traits and fruit weight in F1population(123 individuals) of ’Ninghaibai’ and ’Dafang’ hybrid were analyzed. The results showed that the five traits, including length, width and thickness of leaf, petiole length, and fruit weight, inhibited normal distribution with good continuity in offspring. The genetic trend of fruit weight, leaf length, width and thickness was smaller, while petiole length tended to moderate variation. For the F1hybrid population, the leaf surface morphology was mainly “rugulose”,the leaf shape was mainly “elliptic”, and the leaf base shape was mainly “cuneate”. The fruit weight had significant positive correlation with petiole length and length, width and thickness of leaf. Therefore, petiole length could be considered as one of the indicators for early screening of excellent plants with large fruits.

关 键 词：枇杷 叶片 单果质量 遗传规律 

分 类 号：S667.3[农业科学—果树学]