학술논문
不同玉米新组合性状比较研究 / A Comparative Study on New Combination Traits in Different Maize Varieties
Document Type
Academic Journal
Author
肖国中; 石小江; 赵志坚; 张琼; 肖峰; 刘燕; 庞兆良; 彭春; 杨小明; 徐成; 王恒震; 曾健强; 张剑波; 蒋勇军; 唐玲玲; 秦伟; XIAO Guozhong; SHI Xiaojiang; ZHAO Zhijian; ZHANG Qiong; XIAO Feng; LIU Yan; PANG Zhaoliang; PENG Chun; YANG Xiaoming; XU Cheng; WANG Hengzhen; ZENG Jianqiang; ZHANG Jianbo; JIANG Yongjun; TANG Lingling; QIN Wei
Source
农学学报 / JOURNAL OF AGRICULTURE. 13(11):12-16
Subject
Language
Chinese
ISSN
1007-7774
Abstract
为了筛选出适宜在湖南地区进行生产示范推广的玉米品种,以'洛玉1号'为对照,对'湘农玉36号'、'湘农玉40号'、'湘农玉42号、'湘农玉两优1号'和'湘农玉两优2号'等5个品种的生育期、田间抗性和产量性状进行调查分析,筛选出最优品种,为下一步区域试验打下基础.并通过对农艺性状与产量的相关性分析,得出了影响产量的显著因素.试验结果表明:各品种生育期均在107～110 d之间,其中'湘农玉36号'病虫害发生率低,无明显倒伏,产量为9.9 t/hm2,较对照品种高51%,为参试品种最高,综合分析为最优品种,可以进行下一步区域试验.在农艺性状与产量的相关性分析中,影响产量的因素从强到弱排序为:穗长>百粒重>穗位高,其中穗长与产量呈极显著正相关,百粒重与产量呈显著正相关,而穗行数对产量有弱负相关影响,因此在玉米新品种选育的过程中应综合选择穗长长,百粒重高,穗行数少的品种.
In order to screen out the maize varieties suitable for production,demonstration and promotion in Hunan area,the growth period,field resistance and yield traits of five varieties,including'Xiangnong Yu No.36','Xiangnong Yu No.40','Xiangnong Yu No.42','Xiangnong Yu Liangyou No.1'and'Xiangnong Yu Liangyou No.2',were investigated and analyzed in this experiment.The optimal varieties were screened out,which laid the foundation for the next regional experiment.Through the correlation analysis of agronomic traits and yield,significant factors affecting yield were obtained.The test results showed that the growth period of all varieties was between 107-110 d.The incidence of diseases and pests in'Xiangnongyu No.36'was low,with no obvious lodging.The yield was 9.9 t/hm2,and 51% higher than that of the control variety,which was the highest among the tested varieties.It was considered as the optimal variety after comprehensive analysis,which could be used for the next regional test.In the correlation analysis between agronomic traits and yield,the factors affecting yield were sorted from strong to weak:panicle length>100-grain weight>high-panicle position,among which panicle length was extremely positively correlated with yield,100-grain weight was significantly positively correlated with yield,and panicle row number had a weak negative correlation with yield.Therefore,in the process of breeding new maize varieties,varieties with long panicle length,high 100-grain weight and low panicle row number should be comprehensively selected.
In order to screen out the maize varieties suitable for production,demonstration and promotion in Hunan area,the growth period,field resistance and yield traits of five varieties,including'Xiangnong Yu No.36','Xiangnong Yu No.40','Xiangnong Yu No.42','Xiangnong Yu Liangyou No.1'and'Xiangnong Yu Liangyou No.2',were investigated and analyzed in this experiment.The optimal varieties were screened out,which laid the foundation for the next regional experiment.Through the correlation analysis of agronomic traits and yield,significant factors affecting yield were obtained.The test results showed that the growth period of all varieties was between 107-110 d.The incidence of diseases and pests in'Xiangnongyu No.36'was low,with no obvious lodging.The yield was 9.9 t/hm2,and 51% higher than that of the control variety,which was the highest among the tested varieties.It was considered as the optimal variety after comprehensive analysis,which could be used for the next regional test.In the correlation analysis between agronomic traits and yield,the factors affecting yield were sorted from strong to weak:panicle length>100-grain weight>high-panicle position,among which panicle length was extremely positively correlated with yield,100-grain weight was significantly positively correlated with yield,and panicle row number had a weak negative correlation with yield.Therefore,in the process of breeding new maize varieties,varieties with long panicle length,high 100-grain weight and low panicle row number should be comprehensively selected.