干旱区生态环境知识资源中心(Arid): Relationship Between Seed Mass and Young-Seedling Growth and Morphology Among Nine Bluebunch Wheatgrass Populations

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DOI	10.1016/j.rama.2018.11.006
	Relationship Between Seed Mass and Young-Seedling Growth and Morphology Among Nine Bluebunch Wheatgrass Populations
	Mukherjee, Jayanti Ray 1,2,3; Jones, Thomas A.4; Monaco, Thomas A.4; Adler, Peter B.2,3
通讯作者	Mukherjee, Jayanti Ray
来源期刊	RANGELAND ECOLOGY & MANAGEMENT
ISSN	1550-7424
EISSN	1551-5028
出版年	2019
卷号	72 期号:2 页码:283-291
英文摘要	To better match plant materials to ecological sites for the purpose of rangeland seedling establishment, we examined the relationship between seed size and growth and morphological traits in young seedlings of bluebunch wheatgrass (BBWG) (Pseudoroegneria spicata [Pursh.] A. Love), a perennial Triticeae bunchgrass native to the Intermountain West. Traits examined included onset of germination, seedling biomass traits, and seedling surface-area traits. We grew seeds of nine BBWG populations that varied for seed size and were produced in a common environment under 2 contrasting d/n temperature regimes (201 5 degrees C; 10/5 degrees C). Lighter-seeded populations germinated and initiated shoots earlier. Heavier-seeded populations displayed high levels of biomass-related traits (e.g., shoot and root biomass and shoot length), while lighter-seeded populations displayed high levels of surface area - related traits (e.g., specific leaf area and specific root length [SRL]). Correlations between seed size and young-seedling traits were mostly similar under the two temperature regimes. However, root length - related traits showed more positive correlations with seed size under the low-temperature regime, which is more similar to actual field-emergence conditions during early spring. P-24, a light-seeded population, originated from the most arid site and exhibited the highest SRL at low temperature, while T-171, a heavy-seeded population, originated from the most mesic site and exhibited moderate SRL. Three populations used for rangeland revegetation, Whitmar, Goldar, and Anatone Germplasm, all exhibited low seed mass and high SRL. However, only Anatone displayed high root-to-shoot length ratio under both temperature regimes, perhaps explaining its wide and successful use in rangeland seedings. Published by Elsevier Inc. on behalf of The Society for Range Management.
英文关键词	early germination Pseudoroegneria spicata seed size specific leaf area specific root length
类型	Article
语种	英语
国家	India ; USA
收录类别	SCI-E
WOS记录号	WOS:000460292800009
WOS关键词	ROOT MORPHOLOGY ; SIZE VARIATION ; RUMEX-CRISPUS ; SMALL PLANTS ; GERMINATION ; EMERGENCE ; TRAITS ; TEMPERATURE ; GRASSES ; RECRUITMENT
WOS类目	Ecology ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218298
作者单位	1.Azim Premji Univ, Sch Liberal Studies, Bengaluru, India; 2.Utah State Univ, Dept Wildland Resources, Grad Program, Logan, UT 84322 USA; 3.Utah State Univ, Ecol Ctr, Logan, UT 84322 USA; 4.USDA ARS, Forbge & Range Res Lab, Logan, UT 84322 USA
推荐引用方式 GB/T 7714	Mukherjee, Jayanti Ray,Jones, Thomas A.,Monaco, Thomas A.,et al. Relationship Between Seed Mass and Young-Seedling Growth and Morphology Among Nine Bluebunch Wheatgrass Populations[J],2019,72(2):283-291.
APA	Mukherjee, Jayanti Ray,Jones, Thomas A.,Monaco, Thomas A.,&Adler, Peter B..(2019).Relationship Between Seed Mass and Young-Seedling Growth and Morphology Among Nine Bluebunch Wheatgrass Populations.RANGELAND ECOLOGY & MANAGEMENT,72(2),283-291.
MLA	Mukherjee, Jayanti Ray,et al."Relationship Between Seed Mass and Young-Seedling Growth and Morphology Among Nine Bluebunch Wheatgrass Populations".RANGELAND ECOLOGY & MANAGEMENT 72.2(2019):283-291.