论文部分内容阅读
1974年以来,我们通过大田调查、田间试验和定株观测,对阿克苏地区陆地棉的蕾铃脱落问题进行了研究,初步结果如下: 一、蕾铃脱落的一般规律 阿克苏地区陆地棉适播期通常为4月下旬。此期播种的棉花,6月10日前后开始现蕾,7月10日前后进入始花期,7月20日达盛花期,8月20日前后始见吐絮,从开花到吐絮经历40天左右。 定点系统调查表明,适播期播种的棉花,6月22日开始出现第一批花蕾脱落,7月中旬以后形成蕾、花、铃综合脱落,7月
Since 1974, we conducted a field survey, field trials and observation of fixed plants, on the Aksu Upland cotton bolls off the issue, the preliminary results are as follows: First, the general rule of falling buds Aksu land cotton sowing period is usually For the end of April. The sown cotton of this period began to leap before and after June 10 and entered the initial flowering period before and after July 10, reaching the flowering stage on July 20 and blooming before and after August 20, and going through about 40 days from flowering to bolting. The sentinel system survey showed that the sowing cotton sowing season sowing, the first batch of buds began to fall off on June 22, after the middle of July the formation of bud, flower and bell integrated off, July