吉林省水稻品种遗传改良过程中地上干物质积累特性-吉林农业大学.pdfVIP

吉林农业大学学报 2012 ，09 Journal of Jilin Agricultural University E-mail:jlndxb@ 吉林省水稻品种遗传改良过程中地上干物质积累特性∗ 1 1,2 1** 1 1 1 武志海 ，赵国臣 ，徐克章 ，邸玉婷 ，姜 楠 ，凌凤楼 1.吉林农业大学农学院，长春130118;2.吉林省农业科学院水稻研究所,长春130124 摘 要: 以吉林省 1958—2004 年间育成的 14 个水稻品种为试材, 研究了齐穗前后的干物质生产特性及其与产 量的关系。结果表明：产量、生物量和收获指数随育成年代的增加而显著增加，47 年来分别增加了 66.9% 、28.1% 、 14.8%。齐穗后干物质积累量随育成年代显著增加且与产量呈显著正相关（0.650** ），且占经济产量的比例为 58.3%~99.0% ；齐穗前干物质积累量与产量无显著相关关系，但齐穗前同化物转移到子粒产量的贡献率存在基 因型显著差异，变幅为41.7%~1.0% 。分蘖至齐穗期单茎净干物质积累量与产量的相关系数为0.656** ，齐穗至 齐穗后 10 d的叶片净同化速率和穗增重速率与育成年代和产量均呈显著正相关。因此，单茎干重可作为早期衡 量水稻群体结构是否合理的一个有效监测鉴别指标，进一步提高吉林省水稻产量应注重提高齐穗后群体的干物 质生产能力。 关键词:水稻;物质生产;净同化速率;产量 中图分类号：S511.01 文献标识码：A 文章编号：1000-5684(2012) /kcms/detail/22.1100.S1602.001.html 网络出版地址： Dry Matter Accumulation Characteristics of Rice Varieties of Genetic Improvement in Jilin Province 1 1,2 1 1 1 1 WU Zhi-hai , ZHAO Guo-chen ,XU Ke-zhang , DI Yu-ting , JIANG Nan ,LING Feng-lou 1. College of Agronomy, Jilin Agricultural University, Changchun 130118, China; 2.Institute of Rice Research, Jilin Academy of Agricultural Sciences, Changchun 130124, China Abstract: The changes of dry matter production characteristics and its relationship with yield traits of fourteen rice varieties released from 1958 to 2005 were investigated. The results showed that yield, biomass and harvest indexes increased significantly with the increase of release year, by 66.9%, 28.1% and 14.8% respectively during 47 years. Dry matter accumulation after heading increased significantly and was positively correlated with grain yield, and contribution of dry matter accumulation after heading to grain ranged from 58.0% to 99.0