International Journal of Horticulture, 2017, Vol.7, No. 31, 288-298
297
N
Soil ESP(%)
P
Soil ESP(%)
K
Soil ESP(%)
Fe
Soil ESP(%)
Figure 5 Relationship of soil ESP with nutrient absorption index
Absorption of Fe reduced with increasing levels of ESP up to 7.27 per cent and increased beyond it (Table 3).
Own root were less efficient than others between 6 and 10 per cent ESP, during which range 110R was more
efficient (Figure 5). Positive effect of ESP on Fe absorption could be due to suppression of the absorption of Ca
which is antagonistic to Fe.
Variation in the efficiency in nutrient absorption with the rootstock at different levels of soil chemical
characteristics could be attributed to the effects of specific ion contributing to the chemical character, its
interaction with other nutrient ions, their relative abundance and the preferential absorption by the roots, soil pH
and soil physical properties. The very fact that crops/ genotypes are identified in relation to soil pH, salinity and
exchangeable sodium have been identified (US salinity laboratory Staff, 1954), itself indicates the variation in the
response of genotypes due to many reasons including nutrient absorption.
References
Abrol I.P., Yadav J.S.P., and Massoud F., 1988, Salt affected soils and their management, Food and Agricultural Organization of the United Nations (FAO),
Soils Bulletin 39
Anna Csikász-Krizsics, and Lajos Diófási, 2008, Effects of Rootstock-Scion Combinations on Macro elements availability of the Vines, Journal of Central
European Agriculture, 9(3): 495-504
Antonio Ibacache G., and Carlos Sierra B., 2009, Influence of rootstocks on nitrogen, phosphorus and potassium content in petioles of four table grape varieties,
Chilean Journal of Agricultural Research, 69 (4) : 503-508
Asher C.J., and Ozanne P.G., 1961, The cat ion exchange capacity of plant roots and its relationship to the uptake of insoluble nutrients, Austr. J. Agr. Res., 12:
755-766
