【摘要】 本文对小麦开花习性进行了比较系统的观察。小麦从抽穗到开始开花,一般需4～6天,单穗开花的天数为3～4天。开花最多的时间是开花后的第二天,占总开花数的一半以上,开花的顺序很有规律性,呈波浪式,由内向外扩展。小麦昼夜均能开花,但晚间的开花数甚少,仅占9%右左。白天开花出现两次高峰,第一次在上午10～12时,高峰明显,第二次在下午4～6时,不甚明显。更多还原

【Abstract】 This paper mentioned systematic observing for blossom characteristic of wheat.Generally,It need 4-6 days from heading to blossom.The blossom in single ear would continued for 3-4 days and most of them(about more than half one) happened in the second day.The order of blossom emerged regularly and they developed wavely from inner to outer.The blossom could happen both in day and night,but only few of them appeared at night(about 9%).There are two high tide of blossom in day,former is obvious and appear at 10-12 am.and the latter is not and appear at 4-6pm.更多还原