The Effect of Heterochronic Germination on the Growth and Quality of Four Forage Species in the Eremopyrum

doi:10.11733/j.issn.1007-0435.2024.02.017

Acta Agrestia Sinica ›› 2024, Vol. 32 ›› Issue (2): 495-502.DOI: 10.11733/j.issn.1007-0435.2024.02.017

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The Effect of Heterochronic Germination on the Growth and Quality of Four Forage Species in the Eremopyrum

WANG Ling-xiu¹, SHAO Shuai^1,2,3, LOU Ya-hua¹

1. College of Grassland Science, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China;
2. Key Laboratory of Grassland Resources and Ecology of Western Arid Region, Ministry of Education, Urumqi, Xinjiang 830052, China;
3. Key Laboratory of Grassland Resources and Ecology of Xinjiang, Urumqi, Xinjiang 830052 China

Received:2023-07-08 Revised:2023-09-09 Online:2024-02-15 Published:2024-03-06

异时萌发对旱麦草属4种牧草生长与品质的影响

王玲秀¹, 邵帅^1,2,3, 娄亚桦¹

1. 新疆农业大学草业学院, 新疆乌鲁木齐 830052;
2. 西部干旱荒漠区草地资源与生态教育部重点实验室, 新疆乌鲁木齐 830052;
3. 新疆草地资源与生态重点实验室, 新疆乌鲁木齐 830052

通讯作者: 邵帅,E-mail:shaoshuai828508@163.com
作者简介:王玲秀(1997-),女,汉族,河南南阳人,硕士研究生,主要从事牧草生理生态方面研究,E-mail:1522731621@qq.com
基金资助:
新疆维吾尔自治区自然科学基金项目（2019D01A53）资助

Abstract

Abstract: To explore the differences in growth and quality between spring-germinated plants and autumn-germinated plants of four forage Eremopyrum species,a pot experiment was conducted to determine various growth and quality indicators,and a comprehensive evaluation was conducted using the grey correlation method. The results showed that:(1) The stem diameter,tiller number,and underground biomass of four species in autumn-germinated plants were greater than those in spring-germinated plants,and autumn-germinated E.distans had the highest plant height (9.13 cm) and biomass (aboveground fresh weight:131.93 g·m^-2. Underground fresh weight:202.95 g·m^-2). The stem diameter (2.22 mm) and tiller number (3.68) of autumn-germinated E.bonaepartis are the highest. (2) Except for E.distans,the relative feed value of autumn-germinated plants of the other three forage grasses was lower than that of spring-germinated plants;the crude protein of autumn-germinated E.triticum was significantly lower than that of spring-germinated plants,and there was no significant difference among the other three forage grasses;the ether extract of autumn-germinated E.bonaepartis was significantly lower than that of spring-germinated plants,and there was no significant difference among the other three forage grasses. (3) The grey correlation ranking of spring-germinated plants is higher than that of autumn-germinated plants,except for the E.distans. The weighted correlation degree of spring-germinated E.bonaepartis is the highest,but the overall difference in the correlation degree of the four forage grasses is not significant. Four species of Eremopyrum have better quality,and especially the spring-germinated plants can play a greater role in supplementary feeding in spring.

Key words: Eremopyrum, Heterochronic germination, Growth, Forage quality, Comprehensive evaluation

摘要： 为探究旱麦草属（Eremopyrum）4种牧草春萌株与秋萌株生长与品质的差异，采用盆栽试验，测定生长与品质指标，并运用灰色关联法进行综合评价。结果发现：4种牧草秋萌株的茎粗、分蘖与地下生物量大于春萌株，秋萌毛穗旱麦草（E.distans）株高（9.13 cm）和生物量（地上鲜重为131.93 g·m^-2，地下鲜重为202.95 g·m^-2）最大；秋萌光穗旱麦草（E.bonaepartis）茎粗（2.22 mm）和分蘖数（3.68）最大；除毛穗旱麦草以外，其他3种牧草秋萌株的相对饲用价值均低于春萌株；秋萌旱麦草（E.triticeum）粗蛋白含量显著低于春萌株，其他3种牧草无显著差异；秋萌光穗旱麦草粗脂肪含量显著低于春萌株，其他3种牧草无显著差异；灰色关联度排序显示除毛穗旱麦草外，其他3种牧草春萌株的综合排名均高于秋萌株，春萌光穗旱麦草加权关联度最高，但关联度总体差异不大。旱麦草属4种牧草具有较优的品质，春萌株可在春季补饲中发挥更大的作用。

关键词: 旱麦草属, 异时萌发, 生长, 牧草品质, 综合评价

CLC Number:

S544

WANG Ling-xiu, SHAO Shuai, LOU Ya-hua. The Effect of Heterochronic Germination on the Growth and Quality of Four Forage Species in the Eremopyrum[J]. Acta Agrestia Sinica, 2024, 32(2): 495-502.

王玲秀, 邵帅, 娄亚桦. 异时萌发对旱麦草属4种牧草生长与品质的影响[J]. 草地学报, 2024, 32(2): 495-502.

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The Effect of Heterochronic Germination on the Growth and Quality of Four Forage Species in the Eremopyrum

异时萌发对旱麦草属4种牧草生长与品质的影响

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