Photosynthetic responses to drought of two grapevine varieties of contrasting origin.

Book Title: NA
Year Published: 1998
Month Published: NA
Author: Schultz, H. R.
Book Group Author: NA
Abstract:

Grapes (cultivars Grenache and Syrah) were grown in France and irrigated or exposed to water stress (natural precipitation) during 1994-95. Gas exchange, stomatal sensitivity, chlorophyll fluorescence, water relations, leaf area and fruit characteristics were determined. Maximum daily photosynthesis and maximum daily stomatal conductance were more sensitive to water deficit in Grenache than in Syrah. Syrah was capable of maintaining higher rates of photochemistry at lower soil and leaf water potentials than Grenache. Leaf C balance was better in Syrah than in Grenache. Syrah produced fruits with higher contents of sugars, phenolic and anthocyanins than Grenache.

Pages: 3755 - 3760
URL: http://0-search.ebscohost.com.catalog.library.colostate.edu/login.aspx?direct=true&AuthType=cookie,ip,url,cpid&custid=s4640792&db=lah&AN=19990307380&site=ehost-live
Volume: NA
Number: NA
Journal: Photosynthesis: mechanisms and effects. Volume V. Proceedingsof the XIth International Congress on Photosynthesis, Budapest, Hungary,17-22 August, 1998
Journal ISO: NA
Organization: NA
Publisher: NA
ISBN: NA
ISSN: 0792355466792355474
DOI: NA
Keywords:

anthocyanins, chlorophyll, crop yield, cultivars, culturalmethods, drought, drought resistance, fruits, grapes, irrigation, leafarea, phenolic compounds, photosynthesis, plant composition, plant waterrelations, quality, stomata, sugars, transpiration, water stress,France, Vitis, Vitis vinifera, Vitis, Vitidaceae, Rhamnales,dicotyledons, angiosperms, Spermatophyta, plants, eukaryotes, WesternEurope, Europe, Mediterranean Region, Developed Countries, EuropeanUnion Countries, OECD Countries, carbon assimilation, carbon dioxidefixation, chemical constituents of plants, cultivated varieties, droughttolerance, Vitaceae, watering, Plant Production (FF100), Plant Breedingand Genetics (FF020), Crop Produce (QQ050), Plant Physiology andBiochemistry (FF060)

Source: EBSCO
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