摘要
【目的】明确新疆棉花历史主栽品种产量变化,以帮助棉花品种选育提供理论依据。【方法】选用50年代以来在新疆南疆棉区推广的16个棉花历史主栽品种为试验材料,对棉花品种产量性状的演变进行研究。【结果】随着年代的更替,单株结铃呈先略降到再增长,单铃重则先升高再降低,衣分呈递增趋势,皮棉产量、籽棉产量增长显著;各性状的遗传力均在95%以上,变异程度依次为单株铃数、单产、籽棉、衣分、单铃重,单株铃数改良潜力最大,公顷皮棉产量次之,最小为单铃重。【结论】每次历史品种的演替都带来了产量的提升,产量性状的改良在提高产量中都发挥了重要作用,通过改良品种提高产量还具有很大的空间。
[Objective] This project aims to definitude the production changes of historical cotton cult ivars in Xinjiang, in the hope of providing a theoretical basis for the cotton breeding. [ Method ] 16 historic cotton cuhivars were selected in Souther Xinjiang as materials since the 1950s, and the evolution of their yield traits was studied. [Result] With era change, bolls per plant first decreased slightly and then increased, boll weight first increased and the reduced, lint showed an increasing trend, and lint yield and seed cotton produc- tion increased significantly. Heritability of each trait was more than 95 % , the descending degree of variation were bolls per plant, lint yield per hectare, seed cotton yield per hectare, lint percentage, boil weight. Boll number had the greatest potential for improvement, followed by lint yield per hectare followed, and boll weight was minimal. [ Conclusion ] Every historical succession of variety brought increased production, improving yield traits played an important role in the production increase, and there is still much room for improvement in production increase through improving the relevant varieties.
出处
《新疆农业科学》
CAS
CSCD
北大核心
2015年第4期779-784,共6页
Xinjiang Agricultural Sciences
基金
国家棉花产业技术体系(CARS-18-11)
关键词
南疆
棉花品种
产量性状
演变规律
Southern Xinjiang
cotton variety
yield traits
evolution
