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草业学报 ›› 2024, Vol. 33 ›› Issue (1): 138-148.DOI: 10.11686/cyxb2023072

• 研究论文 • 上一篇    

6个苇状羊茅(型)品种在成都平原区的生产性能评价

张睿1(), 韩重阳2, 蔡家邦1, 汪阳1, 黄琳凯1, 张新全1, 聂刚1()   

  1. 1.四川农业大学草业科技学院,四川 成都 611130
    2.凉山彝族自治州林业草原科学研究院,四川 西昌 615000
  • 收稿日期:2023-03-06 修回日期:2023-04-06 出版日期:2024-01-20 发布日期:2023-11-23
  • 通讯作者: 聂刚
  • 作者简介:E-mail: nieg17@sicau.edu.cn
    张睿(1998-),男,四川内江人,在读硕士。E-mail: 441761212@qq.com
  • 基金资助:
    国家现代农业产业技术体系(CARS-34);四川省“十四五”饲草育种攻关项目(2021YFYZ0013)

Evaluation of production performance of six Festuca arundinacea varieties in the Chengdu Plain

Rui ZHANG1(), Chong-yang HAN2, Jia-bang CAI1, Yang WANG1, Lin-kai HUANG1, Xin-quan ZHANG1, Gang NIE1()   

  1. 1.College of Grassland Science and Technology,Sichuan Agricultural University,Chengdu 611130,China
    2.Liangshan Academy of Forestry and Grassland Science,Xichang 615000,China
  • Received:2023-03-06 Revised:2023-04-06 Online:2024-01-20 Published:2023-11-23
  • Contact: Gang NIE

摘要:

为筛选适宜成都平原推广利用的优异牧草品种,对6个苇状羊茅(型)品种进行了生育期、主要农艺性状、鲜(干)草产量及牧草营养成分等指标的测定,并运用灰色关联度分析进行综合评价。结果表明,‘特沃’和‘科瑞’的生育期最长,均达275 d。各参试品种平均再生速度依次为‘马胡丽娜’>‘科瑞’>‘都脉’>‘特沃’>‘K31’>‘福泰’。品种‘马胡丽娜’年平均干草产量最高,可达12790.99 kg·hm-2,分别较国审品种‘特沃’和‘都脉’显著增加14.62%和4.28%(P<0.05),表现出明显的产量优势。‘科瑞’干草产量较‘特沃’显著增加6.59%(P<0.05),且植株自然高度可达100.15 cm,高于‘特沃’和‘都脉’(P<0.05)。‘都脉’的分蘖数最大,为47.33个·株-1,显著高于其他品种(P<0.05),其次是‘科瑞’和‘马胡丽娜’,分别达37.50和37.00个·株-1,较品种‘特沃’多6.25和5.75个·株-1。‘K31’茎叶比为0.96,高于其他参试品种。对6个参试品种的营养成分测定表明,‘特沃’的粗蛋白含量最高,可达18.60%,‘科瑞’的粗脂肪含量最高,可达5.41%。通过灰色关联度法综合比较分析,‘科瑞’表现最优,‘特沃’和‘马胡丽娜’综合性状表现较优,适宜在成都平原地区推广种植利用。

关键词: 苇状羊茅, 牧草, 产量, 农艺性状, 营养成分, 灰色关联度分析

Abstract:

In order to identify superior tall fescue varieties for planting in the Chengdu Plain, four varieties of Festuca arundinacea (Kora, Duramax, Tower and Kentucky 31) and two Festulolium varieties (Mahulena and Fojtan) were assessed for phenology, fresh and dry forage yield, nutritional composition and other agronomic traits, and a multivariate evaluation was carried out by grey correlation analysis. It was found that Tower and Kora had the longest seasonal growth period, which was up to 275 days. The average regrowth rate of the six tested varieties ranked Mahulena>Kora>Duramax>Tower>Kentucky 31>Fojtan. The average dry forage yield of Mahulena was the highest at 12790.99 kg·ha-1. The yield of first-ranked Mahulena was 14.62% and 4.28% higher (P<0.05) than yields of fourth- and third-ranked Tower and Duramax, respectively, while yield of second-ranked Kora was 6.59% (P<0.05) higher than Tower. The plant height of Kora was greatest (100.15 cm), followed by Tower and Duramax (P<0.05). Duramax had the highest tiller number (47.33 tillers·plant-1), followed by Kora and Mahulena (37.50 and 37.00 tillers·plant-1, respectively). These values were all significantly higher than those of Tower. The stem∶leaf of Kentucky 31 was 0.96, higher than that of other tested varieties. The variety with highest crude protein content was Tower (18.60%) and the variety with highest ether extract content was Kora (5.41%). According to the multivariate comparative analysis using the grey correlation method, Kora, Tower and Mahulena were the best performers among the tested varieties. They displayed excellent field performance and are therefore suitable for utilization in Chengdu Plain area.

Key words: Festuca arundinacea, forage, yield, agronomic traits, nutritional ingredient, grey relational analysis