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播期和品种不同对淮北地区水稻产量及品质的影响 预览

Effects of Sowing Date and Varieties on Rice Yield and Quality in Huaibei Region
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摘要 [目的]解决淮北地区水稻播期推迟的现象,讨论不同播期对水稻品种的产量、产量构成以及品质的影响。[方法]2017年在徐州市农业科学研究所以徐稻9号和连粳7号为供试材料,设置5个播期,研究播期对水稻产量、产量构成以及品质的影响。[结果]两品种产量随播期推迟呈先上升后下降的趋势,且影响产量的主要是水稻单位面积穗数和每穗颖花数减少,而千粒重的变化不明显。水稻整精米率、垩白度和垩白粒率则随播期的推迟呈先上升后下降的趋势,但未达显著水平。[结论]就品种而言,无论是产量、产量构成还是品质,徐稻9号对于播期推迟的响应均小于连粳7号。 [Objective]In order to solve the delay of rice planting in Huaibei area,the effects of different sowing dates on the yield,yield component and quality of rice varieties were discussed.[Method]The experiment was conducted in Xuzhou Agricultural Science Institute in 2017,with the experimental materials of Xudao No.9 and Lianjing No.7,and 5 sowing dates were set up to study the effect of sowing period on rice yield,yield composition and quality.[Result]The yield of the two varieties increased first and then decreased with the delay of sowing date,and the main factors affecting yield were the reduction of panicle number per unit area and spikelet number per panicle,while the change of 1 000-grains weight was not obvious.The head milled rice rate,chalkiness degree and chalky rice rate increased first and then decreased with the delay of sowing date,but did not reach a significant level.[Conclusion]In terms of variety,no matter yield,yield components or quality,the response of Xudao No.9 to sowing delay was less than that of Lianjing No.7.
作者 赵新勇 王友霜 王健康 丁成伟 郭荣良 赵轶鹏 李思梦 ZHAO Xin-yong;WANG You-shuang;WANG Jian-kang(Xuzhou Institute of Agricultural Sciences of Jiangsu Province,Xuzhou,Jiangsu 221000)
出处 《安徽农业科学》 CAS 2019年第9期38-41,54共5页 Journal of Anhui Agricultural Sciences
基金 徐州市重点研究计划项目(KC17060)。
关键词 播期 产量 产量构成 品质 品种 Sowing date Yield Yield components Quality Variety
作者简介 赵新勇(1991-),男,河北唐山人,硕士研究生,研究方向:水稻栽培学;通信作者:赵轶鹏,助理研究员,博士,从事水稻栽培与耕作研究。
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