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Position: Home > Articles > Effects of Sowing Period on Traits and Yield of Japonica Hybrid Rice Yongyou 538 Journal of Anhui Agricultural Sciences 2016,44 (14) 29-30+43

播种期对杂交晚粳甬优538性状及产量的影响

作  者:
孔燕;陈海林;范文俊;李瑾
单  位:
浙江省嘉兴市南湖区农作物管理站;浙江省嘉兴市南湖区余新镇农业服务中心
关键词:
杂交晚粳;甬优538;播种期;性状;产量
摘  要:
[目的]研究杂交晚粳稻甬优538在浙北嘉兴的最适播种期。[方法]以常规晚粳主栽品种秀水134为对照,采用分期播种处理,研究其对甬优538性状及产量的影响。[结果]播种期与其齐穂期、全生育期分别呈极显著正、负相关,每迟播1 d,分别延迟、缩短0.31、0.71 d;与其株高、总叶数呈弱负相关,每迟播1 d,株高下降0.34 cm、总叶数减0.02叶;与其有效穂数、穂总粒、结实率均呈弱负相关,与千粒重呈极显著正相关,每迟播1 d,分别减少0.043万/hm~2、0.92粒、0.11个百分点,千粒重增加0.03 g;与其产量呈二次曲线关系,产量最高点播种期为5月23日,过此期随播期延迟产量下降。[结论]甬优538高产稳产,播种期弹性大,单产≥13 000 kg/hm~2的适宜播期范围为5月15日~6月6日。
译  名:
Effects of Sowing Period on Traits and Yield of Japonica Hybrid Rice Yongyou 538
作  者:
KONG Yan;CHEN Hai-lin;FAN Wen-jun;Nanhu Region Yuxin Town Agricultural Service Center in Jiaxing City;Crop Management Station of South Lake District of Jiaxing City;
关键词:
Japonica hybrid rice;;Yongyou 538;;Sowing period;;Traits;;Yield
摘  要:
[Objective] The aim was to study the optimal sowing date for Japonica hybrid rice Yongyou 538 in Jiaxing,Zhejiang. [Method]With conventional late Japonica rice variety Xiushui 134 as control,sowing at different dates,effects on traits and yield of Yongyou 538 were studied.[Result]Sowing period showed extremely significant positive and negative correlation with full spike period and whole growth period,sowing late1 d,shortening 0. 31,0. 71 d; Sowing period was weakly negatively correlated with spike number,total grains per spike,seed- setting rate,indicated extremely significant positive correlation with 1 000- grain weight,sowing late 1 d,reducing 0. 43 thousand / hm~2,0. 92 grains,0. 11 percentage,1 000- grain weight increasing 0. 03 g; Sowing period indicated quadratic regression curve with yield,the highest yield could be obtained when sowing date was on May 23. [Conclusion] Yongyou 538 has high and stable yield,the suitable sowing period of yield ≥13 000 kg / hm~2 is May 15- Jun. 6.

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