Titlebook: Water-Conservation Traits to Increase Crop Yields in Water-deficit Environments; Case Studies Thomas R. Sinclair Book 2017 The Author(s) 20

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Maize,deficit. In the commercial AQUAmax hybrids for dryland regions, the sensitivity to vapor pressure deficit occurred at about 2 kPa. Studies of these hybrids showed that the vapor pressure deficit threshold was related to the sensitivity of transpiration rate to a screening treatment of silver ion aquaporin inhibitor.

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Wheat, that aquaporins are directly involved in the hydraulic conductivity of wheat root cells. In a study of a RIL population from two wheat lines with extremes in their vapor pressure deficit sensitivity, six QTLs were identified that explained most of the variation in sensitivity.

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Limited-Transpiration Rate Under Elevated Atmospheric Vapor Pressure Deficit, to as the vapor pressure deficit (VPD). The other key variable is the resistance to vapor diffusion from the leaves attributed to the aperture of the stomata pores. Partial stomatal closure at modest VPD results in limited-transpiration rate and, hence, conservative use of water. The conservative u

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Peanut,nt rainfall and on sandy soils with low water-holding capacity. Considerable genetic variation within the peanut germplasm has been identified for partial stomatal closure both with early soil drying and elevated vapor pressure deficit. It has been found, however, that those genotypes identified in

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Chickpea,raints limiting chickpea productivity, so soil water conservation to support late-season physiological activity can be very important in increasing yields. Thus far, differences found among studied chickpea genotypes in the expression of early partial closure of stomata with soil drying are small. O