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无腺体棉育种有关问题的探讨
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摘要:
无腺体棉生产是开发利用棉籽蛋白的最有效方法。笔者通过育种实践认为:(1)从已育成的无腺体品种(系)说明,其产量和纤维品质可达到有腺体棉的水平;(2)在杂交方式中,如果无腺体亲本农艺性状和适应性差,应采用复合杂交。利用无腺体棉品种(系)间杂交,有利于集中进行农艺性状的选择;(3)从无腺体性状的感虫和棉籽食用应少施农药考虑,无腺体棉应选育抗虫品种,无花外蜜腺是比较理想的抗虫性状;(4)无腺体棉品种的无腺体性状,其基因型应是gl_2gl_2gl_3gl_3,该性状的纯度亦应作为评价品种的重要依据。
关键词:  无腺体棉,育种
DOI:
基金项目:
STUDIES ON PROBLEMS OF THE GLANDLESS COTTON BREEDING.
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Abstract:
The production of glandless cotton is an effective way for the exploitionand utilization of cotton-seed protein. It is only shortly more than ten yearssince glandless cotton breeding work started in China. Our practice shows that:(1) yields and quality of the glandless cotton varieties raised have provenpossible to reach the same levels as those of ordinary Commercial varieties;(2) when the agronomic characters and adaptation of glandless parent are infe-rior, it is better to use composite crossing,and crossing between two glandlessparents could be used for concentrated selection for agronomic characters;(3) since glandless varieties usually are not resistant to insect infestation,breeding for insect resistant varieties may be taken into consideration, andextra-flower nectary glandless character can be considered as an ideal characterfor insect resistance; (4) The genotype of glandless character is known asgl_2gl_2gl_3gl_3, and the purity of the character is an important basis for evaluatingglandless varieties.
Key words:  Glandless cotton,Breeding

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