高品质棉杂种一代主要农艺及经济性状的优势表现

Superior expression of top quality cotton hybrid 1 generation major agricultural and economical characters

本研究采用江苏经作所自育的高强纤维种质,与综合性状优良的丰产陆地棉品种杂交,共配制8个杂交组合,经与亲本及推广品种比较,表明杂种一代籽、皮棉产量具有较高的中亲优势,籽棉AH平均为7.83％,皮棉AH平均为14.88％,籽棉与推广品种相当,皮棉低于推广品种。衣分具有较高的中亲优势,AH平均为12.12％,但竞争优势低,均为负向优势。铃重竞争优势高,平均CH为7.07％。纤维品质优势明显,统长的平均AH为5.60％,年均CH为19.41％;整齐度的年均AH为2.01％,平均CH为3.91％,比强度的平均AH为9.38％,平均CH为41.32％;麦克隆值的AH既有正向又有负向优势表现,其平均AH为-0.44％,表现为中亲值,CH则均表现为负向优势,平均为-12.4％。

The research adopted top quality variety breading by Jiangsu province industrial crop institute cross with high yielding upland cotton variety which have good comprehensive characters.observation by eight hybrid combinadons. After analyse and study these combinations. It indicated cotton yielding have strong hybrid vigor.The average unginned cotton AH is 7. 83% . ginned cotton AH is 14.88% .The unginned cottonx ginned cotton 、 gin turnout boll weight have high compete vigor.The fibre quality factors such as length、Strengthen etc have distinct minus vigor.