Bepaling van die bydrae van grondwaterstatus en geselekteerde atmosferiese parameters op waterspanning in wingerd
Myburgh, P A
Due to excessive water stress in grapevines, some localities are not suitable for all cultivars. Since soil water content per se does provide an indication of the energy required to absorb water from the soil, it would be more realistic to relate water stress to soil water matric potential. Knowledge on actual soil water matric potentials in non-irrigated vineyards, particularly during ripening, is limited. The purpose of this project is to determine (i) what the extent of soil water depletion over the season would amount to in terms soil matric potential, (ii) what the relationship is between plant water stress and the combined effect of soil and atmospheric conditions and (iii) what the maximum water stress would be in grapevines at a specific locality as predicted at the hand of soil and atmospheric parameters.
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