L. Bavaresco et al., PHYSIOLOGICAL-ASPECTS OF LIME-INDUCED CHLOROSIS IN SOME VITIS SPECIES.2. GENOTYPE RESPONSE TO STRESS CONDITIONS, Vitis, 34(4), 1995, pp. 233-234
One-year-old cuttings from 7 Vitis species (V. amurensis Rupr., V. ber
landieri Planch., V. californica Bentham, V. cinerea Engelm., V. longi
i Prince, V. monticola Buckl., V. riparia Michx.) were grown in pots c
ontaining non-calcareous and calcareous soil. Leaves selected in the m
iddle of the second year's growing season were assayed to test the iro
n concentration of the dry matter and the total iron uptake. The most
significant findings of the trial were: a) shoot growth of V. amurensi
s, V. longii, V. monticola and V. riparia was strongly depressed by th
e calcareous soil; b) V. berlandieri and V. californica took up higher
amounts of iron when growing in the calcareous soil; c) a high ash al
kalinity occurred in chlorotic leaves of V. riparia compared to non-ch
lorotic leaves at the same iron concentration.