Position: Home > Articles > Comparison of New Hybrid Rice Combinations of R470 in Growth Characteristics and Yield heterosis
Modern Agricultural Science and Technology
2009,2009
(22)
14-16
R470系列杂交稻新组合生育特性及产量优势比较
作 者：
章兴发;施翔;程建峰
单 位：
江西省南城县上塘镇农业综合服务站;江西农业大学教育部作物生理生态与遗传育种重点实验室
关键词：
R470;杂交水稻;生育特性;产量优势
摘 要：
以4个超高产杂交中稻新组合及其亲本恢复系R470为材料,比较了各组合生育期、株高、分蘖特性和穗部性状的差异,以及产量的杂种优势分析。结果表明:各组合的性状间均存在一定差异,用恢复系R470配置的不同组合,在分蘖特性、成穗率、穗粒结构和产量上的优势不同,荣优470的竞争优势明显,其次为天优470和G优470;超亲优势除荣优470外,其他2个组合与亲本R470的差异不明显。
译 名：
Comparison of New Hybrid Rice Combinations of R470 in Growth Characteristics and Yield heterosis
作 者：
ZHANG Xing-fa 1 SHI Xiang 2 CHENG Jian-feng 2(1 Agricultural Comprehensive Service Station in Shangtang Town,Nancheng Jiangxi 344706;2 Key Laboratory of Crop Physiology,Ecology and Genetic Breeding,Ministry of Education in Jiangxi Agricultural University)
关键词：
R470;hybrid rice;growth characteristics;yield heterosis
摘 要：
The differences of growth period,plant height,tiller characteristics,ear characters and yield heterosis were compared in four super high yield hybrid combinations and their parent R-line.The results showed that the traits of combinations had some differences.Superiority of the tilling charactersistic,spike-rate,grain structure and yield of four hybrid combinations which derived from the identical restorer line were different.Competition heterosis of RongYou 470 was the most remarkable,TianYou 470 and GYou 470 the next.The differences of over-parent heterosis between the other two combinations and the parent R470 were not remarkable except RongYou 470.
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