大中穗型水稻品种灌浆期非结构性碳水化合物运转特征  

Translocation of non-structural carbohydrates in large and medium panicle rice cultivars during grain filling stage

作　　者：缪小建[1] 王绍华[1] 李刚华[1] 丁艳锋[1] 

机构地区：[1]南京农业大学农业部作物生长调控重点开放实验室,江苏南京210095

出　　处：《南京农业大学学报》2009年第2期1-4,共4页Journal of Nanjing Agricultural University

基　　金：国家自然科学基金项目(30871482);江苏省自然科学基金项目(BK2006142);南京农业大学青年科技创新基金项目(KJ06032)

摘　　要：以Ⅱ优107(大穗)和汕优63(中穗)为试验材料,研究了2个品种灌浆结实期非结构性碳水化合物运转特征。结果表明,灌浆前期Ⅱ优107比汕优63具有较强的光合物质生产能力,齐穗期汕优63叶鞘和茎秆非结构性碳水化合物含量均高于Ⅱ优107。在物质主要输出期(齐穗后10 d内)和齐穗至成熟期间,非结构性碳水化合物输出量汕优63除倒1鞘略低于Ⅱ优107外,倒2、倒3鞘均高于Ⅱ优107,汕优63茎秆输出量要远高于Ⅱ优107。The field experiment was conducted in 2006 to determine the transloeation of non-structural carbohydrates （NSC） from the stem to the grains of two indica rice cultivars with contrasting panicle traits, i. e. Eryou 107 with large panicle and Shanyou 63 with medium panicle. The results showed that during the early filling stage the photosynthetic productivity of Eryou 107 was higher than that of Shanyou 63, and that during the full heading stage, the content of NSC in the sheath and stem of Shanyou 63 was higher than that of Eryou 107. During the 10 days after heading and from heading to maturing, the NSC translocated from the stem, 2nd and 3rd sheath of Shanyou 63 was higher than that of Erynu 107.

关 键 词：水稻 大中穗型 灌浆期 非结构性碳水化合物 运转 

分 类 号：S311[农业科学—作物栽培与耕作技术] S511.21[农业科学—农艺学]