干旱区生态环境知识资源中心(Arid): DiFFERENTiATioN iN sEED MAss AND sEEDliNG BioMAss AllocATioN iN PRosoPis lAEviGATA THRouGHouT iTs DisTRiBuTioN RANGE iN MExico is AssociATED To wATER AvAilABiliTy

Arid

DOI	10.17129/botsci.2846
	DiFFERENTiATioN iN sEED MAss AND sEEDliNG BioMAss AllocATioN iN PRosoPis lAEviGATA THRouGHouT iTs DisTRiBuTioN RANGE iN MExico is AssociATED To wATER AvAilABiliTy
	Hernandez-Madrigal, Fatima; Contreras-Negrete, Gonzalo; Aguilar-Romero, Rafael; Pineda-Garcia, Fernando; Gonzalez-Rodriguez, Antonio
通讯作者	Gonzalez-Rodriguez, A (corresponding author)，Univ Nacl Autonoma Mexico, Inst Invest Ecosistemas & Sustentabilidad, Morelia, Michoacan, Mexico.
来源期刊	BOTANICAL SCIENCES
ISSN	2007-4298
EISSN	2007-4476
出版年	2022-01
英文摘要	Background: Seedling establishment depends on the quality of the seeds and environmental conditions. Differential biomass allocation in emergent seedlings probably constitutes a relevant adaptive response of populations along environmental gradients. Questions: Are there differences in seed mass and biomass allocation in seedlings among Prosopis laevigata populations? Is this variation cor-related with environmental variables? Studied species: Prosopis laevigata (Humb. & Bonpl. ex Willd.) M.C.Johnst (Fabaceae). Study site and dates: Thirteen localities along the distribution ofP . laevigata in Mexico. From 2016 to 2020. Methods: Seeds were collected from four or five mother trees per locality. Seed mass (SM) was obtained in ten seeds per mother and six func-tional traits indicative of biomass allocation were measured in the seedlings after 10 days of germination. Population mean values were obtained for the six traits plus SM and subjected to a principal component analysis (PCA). Population scores on the first two axis of the PCA were re-gressed against environmental variables from the collection localities using a stepwise regression model. Results: Populations displayed functional variation congruent with alternative biomass allocation strategies. The conservative strategy was characterized by larger seeds and seedlings with denser tissues and a higher investment in root biomass, while the opposite characterized the acquisitive strategy. Actual evapotranspiration in May, isothermality and soil water content in February were environmental variables that sig-nificantly predicted population scores on the first two axes of the PCA. Conclusion: Water availability gradients influence seed mass and seedling biomass allocation variation among P. laevigata populations.
英文关键词	actual evapotranspiration arid zones functional traits germination
类型	Article ; Early Access
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000750810600001
WOS关键词	INTRASPECIFIC VARIABILITY ; ROOT MORPHOLOGY ; GERMINATION ; TRAITS ; LEAF ; GROWTH ; TEMPERATURE ; SURVIVAL ; DRY ; DROUGHT
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377079
作者单位	[Hernandez-Madrigal, Fatima; Contreras-Negrete, Gonzalo; Gonzalez-Rodriguez, Antonio] Univ Nacl Autonoma Mexico, Inst Invest Ecosistemas & Sustentabilidad, Morelia, Michoacan, Mexico; [Aguilar-Romero, Rafael; Pineda-Garcia, Fernando] Univ Nacl Autonoma Mexico, Escuela Nacl Estudios Super, Unidad Morelia, Morelia, Michoacan, Mexico
推荐引用方式 GB/T 7714	Hernandez-Madrigal, Fatima,Contreras-Negrete, Gonzalo,Aguilar-Romero, Rafael,et al. DiFFERENTiATioN iN sEED MAss AND sEEDliNG BioMAss AllocATioN iN PRosoPis lAEviGATA THRouGHouT iTs DisTRiBuTioN RANGE iN MExico is AssociATED To wATER AvAilABiliTy[J],2022.
APA	Hernandez-Madrigal, Fatima,Contreras-Negrete, Gonzalo,Aguilar-Romero, Rafael,Pineda-Garcia, Fernando,&Gonzalez-Rodriguez, Antonio.(2022).DiFFERENTiATioN iN sEED MAss AND sEEDliNG BioMAss AllocATioN iN PRosoPis lAEviGATA THRouGHouT iTs DisTRiBuTioN RANGE iN MExico is AssociATED To wATER AvAilABiliTy.BOTANICAL SCIENCES.
MLA	Hernandez-Madrigal, Fatima,et al."DiFFERENTiATioN iN sEED MAss AND sEEDliNG BioMAss AllocATioN iN PRosoPis lAEviGATA THRouGHouT iTs DisTRiBuTioN RANGE iN MExico is AssociATED To wATER AvAilABiliTy".BOTANICAL SCIENCES (2022).