期刊论文、会议论文

中文

中国稻米

1006-8082

2015

4

56-61

全国第十六届水稻优质高产理论与技术研讨会

全国第十六届水稻优质高产理论与技术研讨会论文集

2015-08-25

贵阳

中国作物学会

10.3969/j.issn.1006-8082.2015.04.011

国家水稻现代产业技术体系岗位专家项目（2011-2015）；

本校为第一机构

为探明湖南长沙和贵州兴义2个生态点水稻产量差异、干物质积累及其分配特点和氮素吸收利用率规律,2014年以五优308、珞优9348、玉香油占和黄华占为材料,进行不施氮（0 kg/hm^2）、中氮（161.25 kg/hm^2）、高氮（225 kg/hm^2）处理的大田栽培试验。结果表明：（1）兴义生态点的平均产量为11.98 t/hm^2,比长沙点显著高23.82%;2个生态点品种间产量表现一致,均以五优308产量最高（9.41-12.80 t/hm^2）,其次为珞优9348、黄华占和玉香油占,除珞优9348外,五优308显著高于其他品种。（2）兴义点有效穗数、结实率和千粒重分别比长沙点高35.27%、11.13%和3.66%,差异达到显著水平,2生态点均以有效穗数对产...

To study the difference of grain yield, dry matter accumulation and distribution and nitrogen use efficiency for rice cultivars under two different ecological locations（Changsha, Hunan Province and Xingyi, Guizhou Province）, experiments were conducted with Wuyou 308, Luoyou 9348, Yuxiangyouzhan and Huanghuazhan under three nitrogen rates（0 kg/hm^2, 161.25 kg/hm^2 and 225 kg/hm^2）. The results showed that：（1）the grain yield was 11.98 t/ hm^2 in Xingyi, which significantly produced 23.82% more grain yield than that in Changsha. There was a...