干旱区生态环境知识资源中心(Arid): Germination and early growth response of guar cultivars to low temperatures

Arid

DOI	10.1016/j.indcrop.2020.113082
	Germination and early growth response of guar cultivars to low temperatures
	Singh, Jagdeep; Guzman, Ivette; Begna, Sultan; Trostle, Calvin; Angadi, Sangu
通讯作者	Angadi, S (corresponding author), New Mexico State Univ, Agr Sci Ctr Clovis, 2346 State Rd, Clovis, NM 88101 USA.
来源期刊	INDUSTRIAL CROPS AND PRODUCTS
ISSN	0926-6690
EISSN	1872-633X
出版年	2021
卷号	159
英文摘要	Demand for galactomannan gum from guar, commonly known as guar gum, has exponentially increased in the last few decades due to increased use in oil and natural gas, food, cosmetics, paper and other industries. The United States of America is the major importer of the guar gum in the world, which is mainly grown in deserts of India and Pakistan. There is need to increase guar production in non-traditional areas to ensure steady supply and reduce market volatility. Expanding guar acreage into cooler regions of the southern High Plains or in similar agroclimatic regions of the world is an attractive option. Therefore, a study was conducted in incubators to assess genetic variations among currently available guar cultivars for germination and early growth under cooler temperature ranges. Six temperatures (13, 16, 19, 22, 25, and 28 degrees C) and six guar cultivars (Kinman, Lewis, Matador, Monument, Santa Cruz and Judd 69) were used. Guar cultivars exhibited significant variations for germination percentage, mean germination time and seed vigor index under lower temperatures, which narrowed as the temperature increased closer to optimum. Mean seed germination percentage of cultivars reached maximum at 22 degrees C. However, speed of germination and seed vigor indices, which are indicators of quick and uniform establishment of guar in the field, continued to increase till 28 degrees C. Kinman, which was the most promising guar cultivar under cooler temperature, reached maximum germination percent at 16 degrees C and had the lowest germination time and highest seed vigor index among cultivars below 16 degrees C. In contrast, Matador reached maximum germination at 26 degrees C. Germination and early seedling traits indicate that it is better to plant guar in warm soils and if needed to plant in cooler conditions, cultivars like Kinman should be used.
英文关键词	Guar gum Seed germination Seed vigor index Primary root length Speed of germination Mean germination time
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000596614800008
WOS关键词	CYAMOPSIS-TETRAGONOLOBA L. ; ROOT-GROWTH ; CARDINAL TEMPERATURES ; SEED-GERMINATION ; REGISTRATION ; YIELD ; TIME ; TOLERANCE ; VIGOR
WOS类目	Agricultural Engineering ; Agronomy
WOS研究方向	Agriculture
来源机构	New Mexico State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/347948
作者单位	[Singh, Jagdeep; Guzman, Ivette; Angadi, Sangu] New Mexico State Univ, Dept Plant & Environm Sci, Las Cruces, NM 88003 USA; [Begna, Sultan] USDA ARS, Water Management Res, Parlier, CA 93648 USA; [Trostle, Calvin] Texas A&M AgriLife Extens Serv, Lubbock, TX 79403 USA
推荐引用方式 GB/T 7714	Singh, Jagdeep,Guzman, Ivette,Begna, Sultan,et al. Germination and early growth response of guar cultivars to low temperatures[J]. New Mexico State University,2021,159.
APA	Singh, Jagdeep,Guzman, Ivette,Begna, Sultan,Trostle, Calvin,&Angadi, Sangu.(2021).Germination and early growth response of guar cultivars to low temperatures.INDUSTRIAL CROPS AND PRODUCTS,159.
MLA	Singh, Jagdeep,et al."Germination and early growth response of guar cultivars to low temperatures".INDUSTRIAL CROPS AND PRODUCTS 159(2021).