RESPONSE OF SOIL AND FOLIAR APPLICATION OF ZINC, IRON AND BORON ON BIO PHYSICAL PARAMETERS AND CHLOROPHYLL CONTENT OF SAPOTA
Journal Title: International Journal of Agriculture Sciences - Year 2017, Vol 9, Issue 9
Abstract
The present study was carried out to know the effect of soil and foliar application of micro nutrients on bio physical, bio chemical parameters of sapota cv. Kalipatti. Zinc and iron sulphates are used for soil and foliar application, boron for soil application sodium tetraborate (Jai bore) and for the foliar application solubor were used. The results found that in T10 (0.5% ZnSO4 + 0.5% FeSO4 + 0.3% B foliar application) increased photosynthetic rate (14.57 mol CO2 m-1s-1), transpiration rate (9.24 mmol H2O m-2 S-1) sub stomatal CO2 (232.94 ppm) leaf temperature (42.77 ï‚°C), total chl (2.79 mg/g) and chl a/b (6.15). But in T11 [50 g ZnSO4 + 40g FeSO4 + 25g B soil and 0.5% ZnSO4 + 0.5% FeSO4 + 0.3% B foliar application shown reduced photosynthetic rate (11.7 mol CO2 m-1s-1) , transpiration rate (4.32 mmol H2O m-2 S-1), sub stomatal CO2 (215 ppm), leaf temperature (36.46 ï‚°C), total chl (1.67 mg/g and chl a/b (3.77) due to excess micronutrients.
Authors and Affiliations
G. THIRUPATHAIAH
Keywords
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