玉米籽粒乳线比例与籽粒相关性状的关系  

Relationship between Milk Line Proportion and Traits Related to Grain of Maize

作　　者：董红芬 霍成斌 李爱军 李洪 阎晓光 马志远 DONG Hongfen;HUO Chengbin;LI Aijun;LI Hong;YAN Xiaoguang;MA Zhiyuan(Millet Research Institute,Shanxi Agricultural University,Changzhi 046000,China)

机构地区：[1]山西农业大学谷子研究所,山西长治046000

出　　处：《河南农业科学》2024年第5期22-29,共8页Journal of Henan Agricultural Sciences

基　　金：国家重点研发计划项目(2021YFD1201004);山西农业大学生物育种工程项目(YZGC022);国家现代玉米产业技术体系建设专项(nycytx-02)。

摘　　要：选用3个不同粒型玉米品种马齿型郑单958(ZD958)、半马齿型先玉335(XY335)和硬粒型长单106(CD106)为试验材料,研究玉米籽粒乳线比例与粒长、粒宽、百粒鲜质量、含水率、灌浆速率、脱水速率的关系,以期为玉米最佳收获期的确定和适宜机械粒收玉米新品种的选育提供依据。结果表明,品种对玉米籽粒乳线比例的影响达到显著或极显著水平,XY335籽粒乳线比例增加速率最快,其次是CD106、ZD958。不同粒型玉米品种粒长、粒宽、百粒鲜质量对乳线比例的作用效应不同,粒宽、百粒鲜质量对乳线比例的作用效应较大。籽粒乳线比例与籽粒含水率、灌浆速率、脱水速率总体上呈显著或极显著负相关,含水率与灌浆速率、脱水速率呈显著或极显著正相关,灌浆速率与脱水速率呈极显著正相关。Three different grain type maize varieties,horse tooth type Zhengdan 958(ZD958),half⁃horse tooth type Xianyu 335(XY335)and hard grain type Changdan 106(CD106),were selected as experimental materials to study the relationship of maize grain milk line proportion and grain length,grain width,fresh 100⁃grain weight,water content,filling rate and dehydration rate,so as to provide a basis for the determination of the optimum harvest time and breeding of new maize varieties suitable for mechanical grain harvest.The results showed that the effect of varieties on the milk line proportion of maize grain was significant or extremely significant,XY335 had the fastest increase rate of milk line proportion,followed by CD106 and ZD958.The effects of grain length,grain width and fresh 100⁃grain weight of different grain type varieties on milk line proportion were different,grain width and fresh 100⁃grain weight had greater effect on milk line proportion.Milk line proportion was significantly or extremely significantly negatively correlated with grain water content,filling rate and dehydration rate as a whole,the water content was significantly or extremely significantly positively correlated with filling rate and dehydration rate,and filling rate was significantly positively correlated with dehydration rate.

关 键 词：玉米 籽粒 粒型 乳线比例 含水率 灌浆速率 脱水速率 

分 类 号：S513[农业科学—作物学]