Root length density (RLD) of 6-year-old kiwifruit (Actinidiadeliciosa (A. Chev.) C.F. Liang et A.R. Ferguson) vines was determined inthe spring and at end of the irrigation season, in a pIanting subjected toagradient of winter water-table levels ranging between O and 2.0 m. Twoirrigation regimes were also imposed, providing 50 and 125% of theestimatedmaximum crop evapotranspiration (ETc). A shallow water-table caused muchhigher RLD dose to the stem, but values in the autumn were similar to thecontroI. Contour plots of RLD generated by a Kriging procedure, showedsteeper downward and outward gradients for pIants grown under shallowwater-table conditions, whereas control plants featured a more expansive rootsystem. RLD was increased by the 125% ETc treatmentatall depths anddistances from the vine
Root distribution of kiwifruit as influenced by winter water-table level and irrigation regime
d'Andria R;Magliulo V;Giorio P;Sorrentino G;
1991
Abstract
Root length density (RLD) of 6-year-old kiwifruit (Actinidiadeliciosa (A. Chev.) C.F. Liang et A.R. Ferguson) vines was determined inthe spring and at end of the irrigation season, in a pIanting subjected toagradient of winter water-table levels ranging between O and 2.0 m. Twoirrigation regimes were also imposed, providing 50 and 125% of theestimatedmaximum crop evapotranspiration (ETc). A shallow water-table caused muchhigher RLD dose to the stem, but values in the autumn were similar to thecontroI. Contour plots of RLD generated by a Kriging procedure, showedsteeper downward and outward gradients for pIants grown under shallowwater-table conditions, whereas control plants featured a more expansive rootsystem. RLD was increased by the 125% ETc treatmentatall depths anddistances from the vine| File | Dimensione | Formato | |
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Descrizione: Root distribution of kiwifruit as influenced by winter water-table level and irrigation regime
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