不同田间配置方式对超级稻穗颈维管束数的影响  

Effects on Neck Vascular Bundles of Super Rice in Different Field Collocation Patterns

作　　者：李伟娟[1] 张喜娟[1] 李红娇[1] 徐正进[1] 

机构地区：[1]辽宁省北方粳稻育种重点实验室沈阳农业大学水稻研究所,沈阳110161

出　　处：《北方水稻》2008年第3期58-61,共4页North Rice

基　　金：国家自然科学基金(30370866)项目;教育部博士学科点专项科研基金(20050157001)项目

摘　　要：以超级粳稻沈农265为试材,研究了不同田间配置方式对超级稻穗颈维管束数的影响。结果表明:不同田间配置方式下超级稻穗颈维管束数的株内变异范围不同,株内的茎间维管束数目差异明显,但株内的茎间维管束数目的次数分布均呈正态或近正态分布。因而,对水稻群体穗颈维管束进行研究时,可取中等株内中等茎为样本,具有一定代表性。本研究还表明稀植有利于穗颈大、小维管束的形成,而播量对穗颈维管束数目的影响不显著。The effect of field collocation patterns on neck tissue amount of super rice Shennong 265 was studied in the experiment. The result showed that there existed differences in variation range and amounts of neck vascular bundles in a hill under different field collocation patterns, The normal or near-normal distribution of neck vaseular bundles of different tillers in a hill existed. Therefore, the moderate level of the tillers could be used to study the characteristics of the vascular bundle. The results also showed that low transplanting density could increase large and small vascular bundles. The sowing density had no effect on the amount of neck tissue vascular bundles .

关 键 词：水稻 维管束 不同田间配置方式 株内变异 

分 类 号：S352[农业科学—作物栽培与耕作技术]