温度对水稻两优培九生育期和产量的影响  

EFFECT OF TEMPERATURE ON GROWTH DURATION AND YIELD FORMATION IN LIANGYOUPEIJIU

作　　者：霍中洋[1] 顾承华 戴其根[1] 张洪程[1] 杨海生[1] 陶小军[1] 葛鑫[1] 

机构地区：[1]扬州大学农学院农学系,江苏扬州225009 [2]江苏省扬州市气象局,江苏扬州225003

出　　处：《扬州大学学报（农业与生命科学版）》2002年第1期51-54,共4页Journal of Yangzhou University：Agricultural and Life Science Edition

基　　金：江苏省"九五"农业科技开发项目 (BL2 0 0 0 0 13 );扬州大学科研基金资助项目

摘　　要：分析研究两系杂交水稻两优培九在气候迥异的不同年型间生育期与产量的温光效应规律。结果表明 :其生育期长短主要受积温 (>0℃ )所控制 ,在中国扬州地区其全生育期为 1 60d左右 ,约需积温为 3 880℃ ;产量因播期、年份不同而呈极显著差异 ,且存在互作效应 ;两优培九在扬州地区安排在 4月下旬至 5月上旬种植 ,有利于高产、稳产。The growth duration and yield formation of Liangyoupeijiu, a new high\|yielding bilinear hybrid of Inter\| subspecies rice, were studied in different climatic types (in 1998 and 1999). The results showed that the growth duration, about 160 days, was mainly determined by accumulated temperature (> 0 ℃ ) which was 3 880 ℃ in Yangzhou. Differences of the grain yield were all significant at 1 % level between sowing dates, years and their interaction. During optimal sowing time (from Apr, 30 to May, 10), grain yield of Liangyoupeijiu was stable and high.

关 键 词：两优培九品种 水稻 生育期 产量 积温 

分 类 号：S511[农业科学—作物学]