Soil Compaction Drives an Intra-Genotype Leaf Economics Spectrum in Wine Grapes

Intraspecific trait variation is a critical determinant of ecosystem processes, especially in agroecosystems where single species or genotypes exist in very high abundance. Yet to date, only a small number of studies have evaluated if, how, or why traits forming the Leaf Economics Spectrum (LES) var...

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Bibliographic Details
Published in:Agriculture (Basel) 2022-10, Vol.12 (10), p.1675
Main Authors: Martin, Adam R., Mariani, Rachel O., Cathline, Kimberley A., Duncan, Michael, Paroshy, Nicholas J., Robertson, Gavin
Format: Article
Language:English
Subjects:
Agricultural economics
Agricultural ecosystems
Agricultural land
Agricultural production
agroecology
Bulk density
Clay
Coffee
Construction costs
Corn
Crops
Domestication
Economics
Environmental changes
Environmental factors
Flowers & plants
functional trait
Genotype & phenotype
Genotypes
Grapes
Grapevines
Hypotheses
intraspecific trait variation
Leaves
Nitrogen
Photosynthesis
Physiology
plant trait spectra
Plants (botany)
Potash
Rice
Soil compaction
Variation
Vitis vinifera
Wineries & vineyards
Wines
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Summary:Intraspecific trait variation is a critical determinant of ecosystem processes, especially in agroecosystems where single species or genotypes exist in very high abundance. Yet to date, only a small number of studies have evaluated if, how, or why traits forming the Leaf Economics Spectrum (LES) vary within crops, despite such studies informing our understanding of: (1) the environmental factors that drive crop LES trait variation and (2) how domestication has altered LES traits in crops vs. wild plants. We assess intragenotype variation in LES traits in ‘Chardonnay’ (Vitis vinifera)—one of the world’s most commercially important crops—across a soil compaction gradient: one of the most prominent characteristics of agricultural soils that may drive crop trait variation. Our early evidence indicates that ‘Chardonnay’ traits covary along an intragenotype LES in patterns that are qualitatively similar to those observed among wild plants: resource-acquiring vines expressed a combination of high mass-based photosynthesis (Amass), mass-based dark respiration (Rmass), and leaf nitrogen concentrations (N), coupled with low leaf mass per area (LMA); the opposite set of trait values defined the resource-conserving end of the ‘Chardonnay’ LES. Traits reflecting resource acquisition strategies (Amass, Rmass, and leaf N) declined with greater bulk density, while traits related to investment in leaf construction costs (LMA) increased with greater bulk density. Our findings contribute to an understanding of the domestication syndrome in grapevines and also provide information relevant for quantifying trait-based crop responses to environmental change and gradients.
ISSN:2077-0472
2077-0472
DOI:10.3390/agriculture12101675