| 苜蓿新品种草原4号的选育 |
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| 引用本文： | 特木尔布和,肖燕子.苜蓿新品种草原4号的选育[J].草业科学,2017,34(4). |
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| 作者姓名： | 特木尔布和 肖燕子 |
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| 作者单位： | 内蒙古农业大学草原与资源环境学院,内蒙古呼和浩特,010011;内蒙古农业大学草原与资源环境学院,内蒙古呼和浩特,010011 |
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| 摘 要： | 草原4号苜蓿(Medicago sativa cv.Caoyuan No.4)是对400余份苜蓿原始材料进行抗虫性鉴定,选择优良无性系,并结合抗虫性和配合力测定组配基础群体,通过3次轮回选择育成的抗蓟马苜蓿新品种(登记号:477)。该品种根直立,具有水平生长根;茎直立,有茸毛;叶为三出复叶,表面有茸毛;花紫色;荚果螺旋2~3回;千粒重1.86~2.35g。抗虫性强(为害点系数为0.26,虫情指数为0.33)、抗旱、抗寒、耐瘠薄。在呼和浩特地区可刈割3茬,干草平均产量在12 000~16 000kg·hm~(-2),种子产量达230.90kg·hm~(-2)。粗蛋白质含量在19%左右。适宜在我国华北南部苜蓿蓟马为害严重的各省(区)种植。
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| 关 键 词： | 草原4号苜蓿 蓟马 抗虫性 轮回选择 |
Breeding of new variety of Medicago sativa cv.Caoyuan No.4 |
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| Temuerbuhe,Xiaoyanzi.Breeding of new variety of Medicago sativa cv.Caoyuan No.4[J].Pratacultural Science,2017,34(4). |
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| Authors: | Temuerbuhe Xiaoyanzi |
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| Abstract: | Medicago sativa cv.Caoyuan No.4 with anti-thrips was selected through three cycles using insect resistance identification,superior clones,and combination of insect resistant identification and cooperation equipped with basic groups (registration number:477).Root of the variety was erect with horizontal growth root.Stem was erect with setae.Leaf was three compounds with surface setae.Flower was purple.Pod was spiral of 2 to 3 times.Thousand grain weight was 1.86～2.35 g.The variety was high insect resistance (hazard point coefficient:0.26,and pest index:0.33),drought resistance,cold resistance,and barren resistance.It can be cut three times,average hay yield was 12 000～16 000 kg · ha-1,and seed yield was 230.90 kg · ha-1 in Hohhot regions.The crude protein content was 19％.This alfalfa specie was suitable for the cultivation in serious thrips harm regions as southern provinces of the north China. |
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| Keywords: | Medicago sativa cv Caoyuan No 4 thrips insect resistance recurrent selection |
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