豫北地区弱冬性小麦分期播种及对产量要素的影响分析

Regions of the Weak Winter Wheat Sowing Stages and Production Elements of Northern Henan

弱冬性‘郑麦9023’是豫北种植面积第一大品种,占整个麦播面积的60%左右,是决定豫北小麦产量的关键。为了在生产中提高‘郑麦9023’产量方面制定相应的科学措施提供依据,通过采用不同处理间数据进行方差分析对2010—2012年冬小麦‘郑麦9023’分期播种2次试验的处理方法,研究从气象因子对小麦生育关键期的影响分析和通过小麦分蘖、密度、实产测定调查对‘郑麦9023’产量因素的影响分析这两方面进行。结果表明:‘郑麦9023’的适宜播种期应在10月15日至10月31日,影响‘郑麦9023’关键生育期的主要气象因子日照是影响灌浆速度的主导气象因子,温度是限制因子,其他气象因素的影响一般为间接作用。

The weak winter‘Zhengmai 9023＇is the first planting area varieties in north Henan,accounting for around 60% of the entire Maibo area,is the key of wheat yield in northern Henan. In order to improve the production of‘Zhengmai 9023＇yield to formulate corresponding measures to provide a basis of science,by using different treatments between data was analyzed by variance analysis for 2010-2012 winter wheat sowing‘Zhengmai 9023＇2 test of the processing,studied and analyzed the effect of the meteorological factors on wheat growth key period,and wheat tillering,density,the real measurement investigation on‘Zhengmai 9023＇yield factors. The results showed that：the‘Zhengmai 9023＇suitable sowing date in October 15th to October31st,affected‘Zhengmai 9023＇key growth period of the main meteorological factors of sunshine was the dominant meteorological factor,which affected the filling speed. The temperature was a limiting factor,other meteorological factors generally played an indirect role.