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1991年,我所共征集国内外棉花新种质51份,其中,国内种质29份,美国种质14份,原苏联种质8份。1991～1992年进行了鉴定和分析。 1.生长发育及主要产量性状试验结果,对照中棉12的生育期为135.4d,株高87.8cm,子指9.45g,单铃重5.6g,衣分40.8％,单株铃数16.2个;美国材料的生育期134.9d,稍早于对照,株型一般为塔形,株高63—84cm,棉铃卵或椭园形,单铃重5.97g,略高于对照,单株结铃11.5个,衣分
In 1991, I collected a total of 51 new cotton germplasms at home and abroad, including 29 domestic germplasm, 14 American germplasm and 8 original Soviet germplasm. 1991 to 1992 were identified and analyzed. 1. Growth and development and main yield traits The results showed that the growth period of Zhongmian 12 was 135.4 days, the height of plant was 87.8 cm, the index of finger was 9.45g, the boll weight was 5.6g, the percentage of clothing was 40.8% and the number of bolls per plant was 16.2. The growth period of the American material was 134.9 days. Earlier than the control, the plant type was generally tower-shaped. The height of the plant was 63-84 cm. The boll egg or oval was 5.97 g in boll weight, slightly higher than the control , Clothing points