摘要
为探索适宜河南漯河生态区的弱春性小麦品种最佳播期,以弱春性小麦品种郑麦9023、豫麦34、豫麦50、豫农949为材料,研究了不同播期(10月3日、10月13日、10月23日、11月3日)对小麦产量及其构成因素的影响。结果表明,弱春性小麦以10月23日左右为最佳播期,早播和晚播,产量构成因素均较低,产量明显低于适播期;通过对产量构成因素进行分析表明,不同品种产量构成因素具有不同的特点,其产量潜力也明显不同,豫麦50产量构成因素优势比较明显;通过对播期效应进行分析,产量构成因素表现具有明显差异,说明该类品种对播期反应敏感;通过对三值产价进行分析,不同播期间穗值产价和重值产价的变异系数均大于粒值产价,说明每穗粒数变化较小,在每穗粒数得到保证的前提下,通过增加有效穗数和提高千粒重能够提高弱春性小麦产量。
The weak spring varieties,Zhengmai 9023,Yumai 34,Yumai 50,and Yunong 949,were used as experimental materials,the effects of different sowing dates(October 3,October 13,October 23,November 3) on the yields and the yield components were studied to explore the appropriate sowing date of weak spring wheat in Luohe ecological zones.The results showed that the best sowing date for weak spring wheat was around October 23.The yield components effects in early sowing and late sowing were both lower and the yields was much lower than that in suitable sowing.The yield components of different varieties had different characteristics and these yield potentials were also significantly different.The advantage of yield components of Yumai 50 was obvious.The varieties with significant differences in yield components effect were sensitive to sowing time.The differences of the production prices of spike value and the weight value among different sowing dates were higher than that of grain value,which indicated that the change of grain number was small and increasing spikes and grain weight could improve the yield of wheat when the grain number was guaranteed.
出处
《湖北农业科学》
北大核心
2013年第2期269-271,共3页
Hubei Agricultural Sciences
基金
国家现代小麦产业技术体系建设项目(CARS-3-2-26)
河南省粮食核心区建设项目(2011BAD07B00)
河南省重大科技攻关计划项目(0522010300)
关键词
小麦
弱春性
播期
产量
产量构成因素
三值产价
wheat
weak spring
sowing date
yield
yield component
3-valuation of yield
