新疆农业科学 ›› 2025, Vol. 62 ›› Issue (2): 454-462.DOI: 10.6048/j.issn.1001-4330.2025.02.023

• 草业·畜牧兽医·农业经济 • 上一篇    下一篇

10份梯牧草植株形态特征与产量分析及评价

韩禧卿(), 张鲜花(), 袁惠, 熊辉, 撒成辉   

  1. 新疆农业大学草业学院/新疆草地资源与生态实验室,乌鲁木齐 830052
  • 收稿日期:2024-08-19 出版日期:2025-02-20 发布日期:2025-04-17
  • 通信作者: 张鲜花(1978-),女,新疆呼图壁人,教授,博士,硕士生/博士生导师,研究方向为草地资源与生态,(E-mail)zxh@xjau.edu.com
  • 作者简介:韩禧卿(1996-),男,甘肃张掖人,硕士研究生,研究方向为草地资源与生态,(E-mail)1741977141@qq.com
  • 基金资助:
    新疆维吾尔自治区高校科研计划项目(XJEDU2021I013);2024年新疆维吾尔自治区林业发展补助资金(林草科技)项目

Analysis and evaluation of morphological characteristics and yield of 10 Phleum pratense (L. ) plants

HAN Xiqing(), ZHANG Xianhua(), YUAN Hui, XIONG Hui, SA Chenghui   

  1. Xinjiang Key Laboratory of Grassland Resources and Ecology/College of Grassland Science,Xinjiang Agricultural University, Urumqi 830052,China
  • Received:2024-08-19 Published:2025-02-20 Online:2025-04-17
  • Supported by:
    University R & D Project of Xinjiang Uygur Autonomous Region(XJEDU2021I013);2024 Xinjiang Uygur Autonomous Region Forestry Development Subsidy Fund (Forest and Grass Science and Technology) Project

摘要:

【目的】综合分析与评价10份梯牧草植株形态特征与产量性状,为筛选出适合新品种培育的优异种质材料提供依据。【方法】以收集的新疆不同地区9份野生梯牧草和1份栽培种为材料,采用同质园试验,通过主成分、聚类及灰色关联度等分析与评价筛选优异种质。【结果】(1)10份梯牧草材料之间除茎节数、穗宽和千粒重外,其他指标均存在显著性差异;变异系数在5.32%~30.15%,其中穗叶距变异最大。(2)在产量性状上,不同材料间差异性显著,牧草产量在5 233.33~9 844.33 kg/hm2,种子产量在34.08~105.2 kg/hm2。(3)牧草产量与旗叶长呈显著正相关,与穗叶距呈极显著负相关;种子产量与株高呈显著正相关关系,与茎粗、叶宽和穗长呈极显著正相关关系,与穗叶距呈极显著负相关关系;千粒重与植株形态特征之间差异性不显著。(4)前6个主成分累积贡献率达76.47%。(5)聚类分析将梯牧草分为4个类群,其中T9和T10表现出植株最高、旗叶较长、穗叶距最小、穗部较大、种子饱满、鲜草产量和种子产量最高。【结论】T9与T10两份材料各特征的表现均较其他材料优异,可作为优异种质材料选择的首选对象。

关键词: 梯牧草; 植物形态特征; 产量

Abstract:

【Objective】To study 9 wild Phleum pratense (L. ) from different regions of Xinjiang and 1 cultivated species with a view to analysis of the plant morphological characteristics and yield traits and evaluation the excellent germplasm materials for the cultivation of new varieties.【Methods】In this study, the homogeneous garden test and determination method were used to analyze and evaluate the excellent germplasm by principal component, clustering and grey correlation degree.【Results】(1) There were significant differences in other indexes among 10 Phleum pratense (L.) materials except for stem node number, panicle width and 1000-grain weight. The coefficient of variation was between 5.32 % and 30.15 %, and the variation of ear leaf distance was the largest. (2) In terms of yield traits, the forage yield was between 5,233.33 and 9,844.33 kg/hm2, and the seed yield was between 34.08 and 105.2 kg/hm2. (3) Forage yield was significantly positively correlated with flag leaf length and significantly negatively correlated with ear leaf spacing. There was a significant positive correlation between seed yield and plant height, a significant positive correlation between seed yield and stem diameter, leaf width and ear length, and a significant negative correlation between seed yield and ear leaf distance. There was no significant difference between 1000-grain weight and plant morphological characteristics. (4) The cumulative contribution rate of the first six principal components was 76.47 %. (5) T9 and T10 showed the highest plant, longer flag leaf, smallest ear leaf distance, larger ear, full seed, highest fresh grass yield and seed yield.【Conclusion】The characteristics of T9 and T10 are better than other materials, which can be used as the first choice for the selection of excellent germplasm materials.

Key words: Phleum pratense (L.); plant modality features; yield

中图分类号: 


ISSN 1001-4330 CN 65-1097/S
邮发代号:58-18
国外代号:BM3342
主管:新疆农业科学院
主办:新疆农业科学院 新疆农业大学 新疆农学会

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