1·The varieties from China could provide better gene resources in lint percentage and fibre fineness, and the foreign cottons could do better in boll weight, lint index and fibre strength.
国内育成品种（系）在衣分、细度上可更好地提供优异的基因资源，而国外品种（系）在铃重、衣指、纤维强度方面具有较高的特异种质筛选率。
2·With 6 different genetic background and high pure upland cotton lines as female parents, the variation of allogamous affinity and main traits of hybrid boll were analyzed under assisted pollination.
研究了人工授粉条件下6个遗传背景差异较大、纯合度高的陆地棉亲本的异交亲合力及杂交铃主要性状差异。
3·Yet it will affect yield and quality of cotton, as later sowing always results in later development, excessive vegetative growth and boll shedding.
但由于棉花迟播而迟发，又常易徒长，蕾铃脱落更多，结铃推迟，影响产量和品质。
4·Except low temperature at flower stage had effect on boll weight of sterile line, other characters performed normally and all superior to those in Shanxi.
除花期低温对不育系铃重有所影响外，其他性状表现正常，均优于山西。
5·The result shows the remarkable positive correlation between boll weight and lint length and negative correlation between boll weight and cotton lint.
结果表明：铃重与绒长呈显著的正相关，与衣分呈负相关。