农学学报2019，Vol.9Issue(1)：11-15,5.
高粱净光合速率的遗传分析
Genetic Ability of Net Photosynthesis Rate in Sorghum
摘要
Abstract
To select parental lines and sorghum hybrid with high net photosynthesis rate, 18 crossing combinations were made by 3 sterile lines and 6 restorer lines with incomplete diallel cross method. The general combining ability (GCA) effect and special combining ability (SCA) effect of net photosynthesis rate on parental lines and crossing combination were analyzed at heading stage, anthesis stage and grain filling stage. Correlation analysis on net photosynthesis rate and main agronomic characters and yield were carried out. The results showed that the general combining ability of sterile line 162273A was the highest in net photosynthesis rate at heading stage, anthesis stage and grain filling stage, its relative effect value at these three stages was respectively 16.2706, 9.7331 and 11.9907. The general combining ability of restorer line 16727, 161011 and 161026 was the highest in net photosynthesis rate at the three growth stage respectively, with the relative effect value as 10.6624, 23.7309, and 18.0146. The special combining ability of crossing combination 162273A× 16878, 162279A×161026 and 162279A×161026 was the highest in net photosynthesis rate at the three growth stage respectively, with the relative effect value as 35.0123, 19.9455 and 33.0046. The ratio of additive genetic variance to genotype variance was low and the narrow-sense heritability was also low at the three growth stages. Correlation analysis showed that net photosynthesis rate had extremely significant positive correlation with grain weight per spike, 1000 grain weight, grain yield, biomass yield and the harvest index.关键词
净光合速率/配合力/相关性分析Key words
Net Photosynthesis Rate/Combining Ability/Correlation Analysis分类
农业科技引用本文复制引用
高海燕,程庆军,田承华,高鹏,张俊珍..高粱净光合速率的遗传分析[J].农学学报,2019,9(1):11-15,5.基金项目
山西省重点研发计划项目"早熟矮秆高粱种质创制及机械化新品种选育"(201703D221005-2) （201703D221005-2）
雁门关农牧交错带专项"机械化早熟酿造高粱品种鉴选与选育"(YCX2017D2104) （YCX2017D2104）
高粱遗传与种质创新山西省重点实验室项目"高粱净光合速率遗传相关性研究"(GLS16-7) （GLS16-7）
晋中市科技局"机械化酿造高粱品种研发及应用"(Y172006) （Y172006）
山西省农科院生物育种工程"机械化食用高粱种质创新与新品种选育"(17yzgc032). （17yzgc032）
