Root distribution of kiwifruit as influenced by winter water-table level and irrigation regime
Academic Article
Publication Date:
1991
abstract:
Root length density (RLD) of 6-year-old kiwifruit (Actinidia
deliciosa (A. Chev.) C.F. Liang et A.R. Ferguson) vines was determined in
the spring and at end of the irrigation season, in a pIanting subjected to
a
gradient of winter water-table levels ranging between O and 2.0 m. Two
irrigation regimes were also imposed, providing 50 and 125% of the
estimated
maximum crop evapotranspiration (ETc). A shallow water-table caused much
higher RLD dose to the stem, but values in the autumn were similar to the
controI. Contour plots of RLD generated by a Kriging procedure, showed
steeper downward and outward gradients for pIants grown under shallow
water
-table conditions, whereas control plants featured a more expansive root
system. RLD was increased by the 125% ETc treatmentatall depths and
distances from the vine
deliciosa (A. Chev.) C.F. Liang et A.R. Ferguson) vines was determined in
the spring and at end of the irrigation season, in a pIanting subjected to
a
gradient of winter water-table levels ranging between O and 2.0 m. Two
irrigation regimes were also imposed, providing 50 and 125% of the
estimated
maximum crop evapotranspiration (ETc). A shallow water-table caused much
higher RLD dose to the stem, but values in the autumn were similar to the
controI. Contour plots of RLD generated by a Kriging procedure, showed
steeper downward and outward gradients for pIants grown under shallow
water
-table conditions, whereas control plants featured a more expansive root
system. RLD was increased by the 125% ETc treatmentatall depths and
distances from the vine
Iris type:
01.01 Articolo in rivista
Keywords:
kiwifruit; Actinidia deliciosa: irrigation; shallow water-table; root length density
List of contributors:
Giorio, Pasquale; Sorrentino, Giuseppe; D'Andria, Riccardo; Magliulo, Vincenzo
Published in: