| 15个苦荬菜新品种（系）在川西南地区农艺性状综合评价 |
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| 引用本文： | 班骞,黄琳凯,张新全,蒋林峰.15个苦荬菜新品种（系）在川西南地区农艺性状综合评价[J].草业学报,2016,25(2):37-46. |
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| 作者姓名： | 班骞 黄琳凯 张新全 蒋林峰 |
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| 作者单位： | 四川农业大学动物科技学院草业科学系,四川 雅安,625014;重庆市垫江县畜牧生产站,重庆 垫江,408300 |
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| 基金项目： | 国家现代牧草产业技术体系(CARS-35-05)，国家科技支撑计划项目(2011BAD17B03)资助。 |
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| 摘 要： | 通过田间试验,对15个苦荬菜品种(系)在川西南地区进行农艺性状综合评价。结果表明,1)新品系川选1号和L5-4生育期相对较长,与对照品种龙牧差异极显著(P0.01),属于晚熟品系。2)产草量以新品系川选1号产量最高,在刈割第2茬产量有明显优势,且刈割后再生性好。新品系川选1号在2013-2014两年平均干草产量达5585kg/hm2,比对照增产64.75%,差异极显著(P0.01)。3)茎叶比方面,L5-4叶片含量最高,茎叶比0.52,川选1号次之,茎叶比0.55。4)营养成分方面,川选1号粗蛋白达26.12%,粗纤维12.11%,营养价值高。综合分析,新品系川选1号和L5-4产草量高,叶量丰富,适合在川西南地区种植推广。
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| 关 键 词： | 苦荬菜 产草量 茎叶比 营养成分 |
| 收稿时间： | 2015-03-17 |
Agronomic traits of 15 annual Ixeris polycephala varieties in the southwest of Si-chuan Province |
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| BAN Qian,HUANG Lin-Kai,ZHANG Xin-Quan,JIANG Lin-Feng.Agronomic traits of 15 annual Ixeris polycephala varieties in the southwest of Si-chuan Province[J].Acta Prataculturae Sinica,2016,25(2):37-46. |
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| Authors: | BAN Qian HUANG Lin-Kai ZHANG Xin-Quan JIANG Lin-Feng |
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| Abstract: | Agronomic traits of 15 Ixeris polycephala varieties were studied in field trials in Ya’an,in the southwest of Sichuan Province.The growth periods of new lines Chuanxuan No.1 and L5-4 were longer than Longmu (P <0.01).In the two years 2013 and 2014,the yields of new line Chuanxuan No.1 were the highest, with a notable yield advantage at the second defoliation and regeneration.The average hay yield of the new line Chuanxuan No.1 was 5585 kg/ha,a 64.75% (P <0.01 )increase,compared with Longmu.With respect to stem∶leaf ratio,the highest leaf content was found in the new line L5-4,and the second ranked was new line Chuanxuan No.1;the stem∶leaf ratios were 0.52 and 0.55,respectively.In terms of nutrients,the new line Chuanxuan No.1 had abundant minerals and high nutritional value,the crude protein was 26.12%,while crude fiber was 12.11%.Thus,the new lines Chuanxuan No.1 and L5-4 with high yields and leaves of high feeding value were suitable for recommendation for planting in the southwest of Sichuan Province. |
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| Keywords: | Ixeris polycephala yield stem-leaf ratio nutrition |
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