陆海杂交种纤维品质和产量相关性状的鉴定与分析  

Identification and Analysis of Fiber Quality and Yield Related Traits of Interspecific(Gossypium hirsutum L.×G.barbadense L.)Hybrids

作　　者：李腾宇 许超 李耀明 苟成飞 洪铸 丁明全[1,2] 孙晨栋 Li Tengyu;Xu Chao;Li Yaoming;Gou Chengfei;Hong Zhu;Ding Mingquan;Sun Chendong(School of Agriculture and Food Science,Zhejiang A&F University,Lin’an,Zhejiang 311300,China;The Key Laboratory for Quality Improvement of Agricultural Products of Zhejiang Province,Lin’an,Zhejiang 311300,China;School of Forestry and Biotechnology,Zhejiang A&F University,Lin’an,Zhejiang 311300,China)

机构地区：[1]浙江农林大学农业与食品科学学院,浙江临安311300 [2]浙江省农作物品质改良技术研究重点实验室,浙江临安311300 [3]浙江农林大学林业与生物技术学院,浙江临安311300

出　　处：《棉花学报》2020年第4期348-359,共12页Cotton Science

基　　金：国家重点研发项目——棉花杂种优势利用技术与强优势杂交种创制(2016YFD0101417);浙江省自然科学基金(LQ19C020006);棉花生物学国家重点实验室开放课题(CB2019A02);浙江农林大学人才启动项目(2018FR038)。

摘　　要：【目的】深入研究棉花陆海杂交种纤维品质和产量相关性状杂种优势遗传规律,为培育高产优质陆海杂交种奠定理论基础。【方法】使用12份陆地棉材料和5份海岛棉材料配制陆海杂交种,对海南三亚和浙江临安种植的亲本及F1进行纤维品质和产量性状测定。【结果】陆海杂交种纤维长度、纤维强度普遍具有显著的中亲优势,部分杂交组合具有较强的超亲优势,纤维长度性状在两地间变异系数较小,可以稳定遗传;在产量方面,部分陆海杂交种籽棉产量、皮棉产量和衣分等性状具有中亲优势,但仍显著低于陆地棉亲本。【结论】获得2个5A级优质长绒棉杂交组合T035和T044,筛选到1个海岛棉骨干亲本塔10-280,可为探讨陆海杂交种棉纤维品质杂种优势遗传规律提供有价值数据。[Objective]The aim of this study is to study the hereditary of heterosis of fiber quality and yield-related traits in the upland-island interspecific hybrids,and breed new interspecific hybrid varieties with high yield and fine fiber quality.[Method]In this study,12 upland cotton materials and 5 sea-island cotton materials were selected to determine the fiber quality and yield traits of their parents and F1 in Lin’an,Zhejiang and Sanya,Hainan.[Result]It was found that fiber length and fiber strength of F1(Gossypium hirsutum×G.barbadense)generally had significant mid-parent heterosis(MPH),some hybrid combinations showed strong over-parent heterosis(OPH),fiber length had a small coefficient of variation between the two places and could be stably inherited.And in terms of yield,seed cotton weight,lint weight,and lint percentage of some upland-island hybrids had MPH,but they were still significantly lower than those of upland cotton parents.[Conclusion]Two long-staple cotton hybrid combinations T035 and T044 with 5A grade high-quality were obtained,and an excellent material of G.barbadense Ta10-280 was screened.This study provides valuable data for the genetic law of fiber quality heterosis of upland-island hybrid cotton.

关 键 词：棉花 陆海杂交种 杂种优势 纤维品质 产量相关性状 

分 类 号：S562[农业科学—作物学]