Abstract
The present study was based on the hypothesis that B has close relationships with cations in soil-plant systems. A study was carried out to assess the influence of B on the concentration of cations and their ratios to boron in radish (cv. French breakfast) crop, using sand culture technique, under green house conditions. The experiment was laid out in a randomized complete block design and replicated three times. Boron was applied at the rate of 0, 0.25, 0.50, 1.0, 2.0, 3.0 and 5.0 mg B L-1 as H3BO3 along with a basal dose of modified complete nutrient solution based on the Long Ashton Formula. Results revealed that the concentrations of B and K in plants were increased and Ca, Mg and Na were significantly decreased. Generally, low and high levels of added B had interactive effects on the concentration of cations in radish plants. The K/Ca, K/Na and K/Mg ratios were increased and Ca/Mg decreased in plants with increasing B levels in the nutrient solution. Moreover, the cation ratios to boron such as K/B, Ca/B, Mg/B and Na/B significantly decreased in both plant tops and roots with increasing B levels in the nutrient solution. These ratios provided some indication for the interrelationships of boron with cations in plants. The present study suggests that the deficiency or excess of B not only affects the relative values of individual element, but it also affects the balance among cations or cations ratio to boron in radish plants
M. Tariq1, C.J.B. Mott2. (2006) Effect of applied boron on the accumulation of cations and their ratios to boron in radish (Raphanus sativus L.) , The Journal Soil & Environment , Volume 25, Issue 1.
-
Views
311 -
Downloads
31
