水稻亲本0901和湘早籼32号的光敏感性研究  

Light Sensitivity of Rice Parental 0901 and Xiangzaoxian 32

作　　者：程小英 袁彬 方宝华 CHENG Xiao-ying;YUAN Bin;FANG Bao-hua(Hunan Rice Research Institute, Changsha 410125, PRC;Hunan Golden Farmer Seed Industry Co., Ltd. 410126, PRC)

机构地区：[1]湖南省水稻研究所,湖南长沙410125 [2]湖南金色农丰种业有限公司,湖南长沙410126

出　　处：《湖南农业科学》2018年第4期8-12,共5页Hunan Agricultural Sciences

基　　金：国家重点研发计划(2017YFD0301502)

摘　　要：研究以水稻亲本0901和湘早籼32号,以及其组合陆两优0901和陆两优湘早籼32号为材料,通过不同遮荫处理,设置不同光强梯度,对不同光照强度下水稻的生育期、分蘖动态、株高和叶面积进行测量分析。结果表明:0901表现出对光照强度的强敏感性,而湘早籼32号是耐荫性较好的材料;不同光照强度处理下,水稻亲本0901的抽穗动态、生育期、分蘖动态、株高和叶面积与对照相比均表现出显著性差异。对于生产上大面积推广的水稻品系0901的叶面积和株高等都容易受到外界光照条件影响,如果能充分利用其强光敏感特性,将其改良成更适应外界环境生长的品种,对于最终实现高产、稳产是有利的保证。Light intensity sensitive rice parent 0901, Xiang early indica 32, Lu Liangyou 0901 and Lu Liangyou Xiang early indica 32 were used as materials, and different light intensity gradients were set by different shading treatments. Light intensity, temperature, growth period, tiller dynamics, plant height and leaf area were measured and analyzed under different light intensity. The results showed that 0901 was strong sensitivity to the light intensity, while xianxiang No.32 was a material with good shade tolerance. The heading dynamics, growth period, tiller dynamics, plant height and leaf area of rice parental 0901 showed significant difference compared with the control under different light intensity treatments. The leaf area and plant height of 0901 are susceptible to external illumination conditions. It is beneficial to achieve high yield and stable yield if it can make full use of its strong light sensitive property to adapt to the growing variety of external environment.

关 键 词：水稻亲本 0901 湘早籼32号 光敏感性 生育期 分蘖动态 

分 类 号：S511[农业科学—作物学]