农业科技与技术（英文）2025，Vol.26Issue(2)：1-6,6.DOI:10.16175/j.cnki.1009-4229.2025.02.001
6个早熟甘蓝型油菜育种材料综合性状比较研究
Comparative Study on Comprehensive Traits of Six Early-Maturing Rapeseed Breeding Materials
摘要
Abstract
To screen high-quality early-maturing rapeseed germplasm resources,this study took six early-maturing Brassica napus varieties(ZY1,ZY2,ZY3,ZY4,ZY5,and ZY6)as research objects to compare and analyze their agronomic traits,resistance,and yield traits.The results showed that the six early-maturing rapeseed varieties exhibited strong pre-winter growth,with the number of green leaf on the main stem ranging from 9.0 to 11.6,the total leaf number of main stem from 11.8 to 14.2,the maximum leaf length on main stem from 41.28 cm to 47.54 cm,the maximum leaf width from 12.02 cm to 13.38 cm,and the rhizome thickness from 20.64 mm to 25.82 mm.The order of green leaf,total leaf,maximum leaf length,and rhizome thickness from high to low across varieties was ZY1>ZY2>ZY3>ZY4>ZY5>ZY6,while the maximum leaf width followed ZY2>ZY1>ZY3>ZY4>ZY5>ZY6.Compared with other varieties,ZY1 and ZY2 had earlier bolting,initial flowering,final flowering,and harvesting times.The growth periods of the varieties were 183-189 d,with ZY1 being the shortest(183 d)and ZY2 following(185 d).Resistance investigations showed that ZY1 had the lowest freeze damage rate(13%)and freeze damage index(0.043),followed by ZY2(15%and 0.060).No Sclerotinia stem rot was observed at the seedling stage,while all varieties developed the disease at maturity;ZY1 had the lowest incidence(15%)and disease index(0.050),followed by ZY2(18%and 0.070).In terms of yield traits,the yield per plant of the six varieties ranged from 11.46 g to 14.53 g,with ZY1 being the highest(14.53 g)and ZY2 following(13.42 g).In conclusion,ZY1 and ZY2 exhibited vigorous pre-winter growth,early bolting and flowering,short growth periods,strong freeze and disease resistance,and high yield per plant,making them ideal materials for early-maturing rapeseed breeding.关键词
早熟甘蓝型油菜/农艺性状/抗性/产量性状Key words
Early-maturing Brassica napus/Agronomic traits/Resistance/Yield traits引用本文复制引用
李颗,袁烨,雷晓英,张维..6个早熟甘蓝型油菜育种材料综合性状比较研究[J].农业科技与技术（英文）,2025,26(2):1-6,6.基金项目
Supported by Major Special Project for Agricultural Biological Breeding(2023ZD0404205) 农业生物育种重大专项(2023ZD 0404205) （2023ZD0404205）
