摘要
[目的]研究不同类型单季杂交稻在江西省上高地区产量和群体特征的差异。[方法]以4个籼粳杂交稻品种和4个杂交籼稻品种为供试材料,对2种类型水稻产量及其结构、茎蘖动态、叶面积动态与组成等群体特征进行系统比较研究。[结果]与杂交籼稻相比,籼粳杂交稻穗型大、穗数足、结实率与千粒重保持正常水平,籼粳杂交稻生长中后期具有光合生产能力强、物质积累多的特点。[结论]籼粳杂交稻产量显著高于杂交籼稻,可供江西省上高地区示范推广的品种有甬优538和甬优12。
[ Objective] The paper was in order to reveal the differences on rice yield and population characteristics between two types of single cropping hybrid rice in Shanggao, Jiangxi Province. [ Method] A field experiment was conducted using four indica-japonica hybrid rice and four indica hybrid rice to compare systematically the yields and components, development of stem and tiller number, development of leaf area by the regulation of cultivation measures. [ Result] The results showed that indica-japonica hybrid rice had more panicle and Spikelets per pani- cle than indica hybrid rice, the yield of indica-japonica hybrid rice was significantly higher than that of indica hybrid rice, the filled-grain per- centage and 1 000-grain weight of both were no significant differences. The population of indica-japonica hybrid rice had obvious advantage, especially, higher photosynthetic matter production, greater dry matter accumulation in the middle and late growth stage. [ Conclusion ] The yield of indica-japonica hybrid rice was significantly higher than that of indica hybrid rice. The Yongyou538 and Yongyoul2 can be used for demonstration at Shanggao Area in Jiangxi Province.
出处
《安徽农业科学》
CAS
2015年第35期67-72,共6页
Journal of Anhui Agricultural Sciences
基金
江苏省普通高校研究生科研实践计划项目(SJZZ_0184)
关键词
杂交稻
产量
群体特征
Hybrid rice
Yield
Population characteristics
