东北地区水稻源库特征的演进研究  

Study on Source-Sink Evolution Characteristics of Rice in Northeast China

作　　者：李红宇[1] 刘梦红[1] 李晓蕾[1] 徐正进[2] 赵明辉[2] 徐海[2] 王嘉宇[2] 

机构地区：[1]黑龙江八一农垦大学农学院,黑龙江大庆163319 [2]沈阳农业大学水稻研究所/农业部作物生理生态与遗传育种重点开放实验室/辽宁省北方粳稻育种重点实验室,辽宁沈阳110161

出　　处：《作物杂志》2013年第3期103-107,共5页Crops

基　　金：黑龙江省科技攻关重大项目(GA10B102);黑龙江八一农垦大学博士启动基金(校启B2011-04);黑龙江八一农垦大学省作物学重点学科学术骨干科研启动金项目(ZWX-QDJ-1)

摘　　要：以东北地区近40年生产上应用的18个代表性品种为材料,依据育成年代分为2000年以来、20世纪90年代、80年代和70年代,研究产量及源库关系的变化特性。结果表明,随着品种改良,产量均呈增加趋势,平均每个年代增长0.841t/hm2,平均增长率为11.6%,主要是生物产量的贡献,尤其是茎鞘物质输出量的增加。现代品种在保持一定叶面积指数的基础上,通过增加库容量提高了粒叶比。In this study, 18 typical cultivars applied in the production in Northeast China during the last 40 years were used, and classified into four ages of the 2000s, 1990s, 1980s and 1970s, according to their application times. All the tested cuhivars were grown in the field and the evolution characteristics of grain yield and its source-sink characteristics were investigated. The results showed that grain yield was progressively increased with the evolution of the cuhivars, average growth 0.841 t/hm2 per decade, the average growth rate of 11.6 %. The increasing of grain yield was attributed mainly to the increase of dry matter exportation from vegetative organs, which resulted mainly from large biomass. On the basis of maintain a certain LAI, the grain-leaf ratio of rice cultivars was improved by increasing the source capacity.

关 键 词：水稻 东北地区 产量 源库特征 

分 类 号：S511[农业科学—作物学]