| 甘蓝型油菜矮秆材料LSW2018的创制 |
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| 引用本文： | 王芳,张瑞茂,黄莎,唐容,王璐璐,杨斌,王转转,杨元雨,王敏,赵德刚,李超.甘蓝型油菜矮秆材料LSW2018的创制[J].中国油料作物学报,2022,44(1):1. |
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| 作者姓名： | 王芳 张瑞茂 黄莎 唐容 王璐璐 杨斌 王转转 杨元雨 王敏 赵德刚 李超 |
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| 作者单位： | 1.贵州大学生命科学学院/农业生物工程研究院山地植物资源保护与种质创制教育部重点实验室，贵州 贵阳，5500252.贵州省农业科学院/油料研究所/油菜研究所/贵州省植物保育技术应用工程研究中心，贵州 贵阳，5500063.贵州师范大学生命科学学院，贵州 贵阳，550025 |
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| 基金项目： | 国家自然科学基金(32060464);贵州省人才基地(RCJD2018-14);贵州省农业科学院项目(黔农科院种质资源〔2021〕05号);贵州省高层次（十层次）创新型人才培养(黔科合平台人才[2016]4003号);贵州省油菜现代农业产业技术体系建设项目(GZCYTX2021-08) |
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| 摘 要： | 本研究以德油5号F1作母本，自育新品系273R作父本配制杂交组合，在其F2群体中出现6株苗期株型明显矮缩的变异株，经5代纯化后育成稳定的甘蓝型矮秆油菜新种质“LSW2018”。该种质苗期苗型矮缩、匍匐生长，叶面皱缩，叶片厚，叶柄短，叶色深；现蕾至成熟期，植株逐渐转为正常形态，茎秆粗壮，节间短，抗倒性特强，分枝部位低，其开花习性、分枝角度、花序特征、一二次分枝数等性状与同源正常高秆品系HSW2018无明显区别，而株高和分枝高度差异极显著。LSW2018育苗移栽平均株高为136.24 cm、直播平均株高为110.4 cm，是适宜机械化、轻简化种植的矮秆甘蓝型油菜新种质，具有较高的利用价值和广阔的应用前景。
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| 关 键 词： | 甘蓝型油菜 矮秆 抗倒伏 LSW2018 |
| 收稿时间： | 2021-12-31 |
Creation of Brassica napus dwarf material LSW2018 |
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| Fang WANG,Rui-mao ZHANG,Sha HUANG,Rong TANG,Lu-lu WANG,Bin YANG,Zhuan-zhuan WANG,Yuan-yu YANG,Min WANG,De-gang ZHAO,Chao LI.Creation of Brassica napus dwarf material LSW2018[J].Chinese Journal of Oil Crop Sciences,2022,44(1):1. |
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| Authors: | Fang WANG Rui-mao ZHANG Sha HUANG Rong TANG Lu-lu WANG Bin YANG Zhuan-zhuan WANG Yuan-yu YANG Min WANG De-gang ZHAO Chao LI |
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| Abstract: | In this study, a hybrid combination was contructed with F1 of Deyou 5, a Brassica napus variety, as female parent and a new line 273R as male parent. In the F2 generation, 6 mutant plants with obvious shorter plant types at seedling stage were selected. After 5 generations of purification, we bred a stable new germplasm, LSW2018. The germplasm shows dwarf marker characters at seedling stage, with shrunken, thicker and darker leaves, shorter petiole. The growth is lightly weak but stable, plant height is significantly shorter than that of the normal variety. From the budding stage to maturity, LSW2018 gradually turned into a normal shape, with shorter internodes and thicker stalks, stronger lodging resistance, and lower branching positions. The flowering habit, branching angle, inflorescence characteristics, primary and secondary branches, grains, and other characteristics of LSW2018 are not significantly different from those of the homologous normal high-stalk line HSW2018, but the plant height and branch height are extremely different. The average transplanting plant height of LSW2018 is 136.24 cm and the direct seeding is 110.4 cm. In short, LSW2018 is considered to be a new short-stem Brassica napus germplasm suitable for mechanized and light-simplified planting, which might have high utilization value and broad application prospects. |
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| Keywords: | Brassica napus L dwarf lodging resistance LSW2018 |
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