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我们于1980年开始,对高粱雄性不育系开花后的柱头生命力的强弱以及柱头能够接收花粉时间的长短,进行了研究。现将研究情况简报如下。一、材料和方法试验材料是3197A 和7501A 高粱雄性不育系。试验分两次进行:第一次在海南岛,1980年11月13日下种,11月18日出苗,1月20日两个不育系陆续抽穗开花,1月22日均进入盛花期。开花期温度23—25℃。1月22日下午选开花1—2天的单穗18穗,进行整穗,将已开过花的小穗去掉,保留没有开花的小穗,整穗后套袋。23日下午,用镊子分别将没有开花的小
We started in 1980, studied the strength of stigma vitality after flowering of sorghum male sterile lines and the length of time that stigma can receive pollen. Now the research briefing is as follows. First, materials and methods The test materials are 3197A and 7501A sorghum male sterile lines. The experiment was conducted in two stages: the first in Hainan Island, November 13, 1980 and the next in November 18, the emergence of January 18, two sterile lines one after another heading flowering January 22 are in full bloom. Flowering temperature 23-25 ℃. On the afternoon of January 22, a single spike of 18 spikes, which bloom for 1-2 days, is selected for the whole spike, the prickly spikelets which have been opened are removed, and the spikelets not blooming are retained and bagged after the whole ear. 23 afternoon, with tweezers, respectively, there will be no flowering small