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小麦幼穗分化在越冬前所处的发育时期,是判断播种期是否适宜的重要标志.不同类型的小麦品种,进入幼穗分化期以及在分化过程中都要求一定的温度条件.因此,摸清品种的特性是十分必要的.几年来我们对以郑引一号为代表的春性品种,以百泉41、郑州76l为代表的半冬性品种进入穗分化期以及穗分化各时期对温度的要求进行了研究,以供确定适宜的播种期时参考.一、不同温度条件下幼穗分化进程
The differentiation of wheat spikelets during the period of overwintering is an important indicator of the suitability of sowing date.Different types of wheat varieties require certain temperature conditions during the differentiation of young spikelets and during the differentiation process. Varieties of the characteristics is very necessary.In recent years, we Cheng Zheng No. 1 spring varieties represented by Baiquan 41, Zhengzhou 76l semi-winter varieties into the ear differentiation and ear differentiation of the various periods of temperature Studies were requested to determine appropriate sowing dates for reference. I. Spike Differentiation at Different Temperatures