Alleviation of spongy tissue in Alphonso mango by multinutrients and growth regulators.
Shinde A. K., Patil B. P., Chandelkar A. B., Jadhav B. B.
Author Affiliation: Regional Fruit Research Station, Vengurle - 416 516, India.
Journal of Maharashtra Agricultural Universities 30 : 141-144
Abstract : Studies were conducted during 2000-02 in Maharashtra, India, to determine the effects of chelated Ca and Zn along with NAA and triacontanol in mango cv. Alphonso and the effects of the use of dolomite and potassium for the management of spongy tissue in tree ripe, 14 Ana (80-90% mature) and 16 Ana (90-100% mature) mango fruits. For the first experiment, treatments comprised: 0.01% and 0.02% chelated Ca, 20 ppm NAA and/or 5 ppm triacontanol, and 0.015 and 0.030% chelated Zn. For the second experiment, treatments comprised: 2 kg dolomite (calcium and magnesium source) + ZnSO4 + borax; twice irrigation; irrigation + 500 g KNO3; irrigation + 500 g KCl; irrigation + dolomite; irrigation + dolomite + KNO3; irrigation + dolomite + KCl; and a control. Chelated Ca (0.02%) + NAA significantly reduced the spongy tissue in Alphonso (20.33% in 2000-01 and 9.33% during 2001-02) compared to the control (50.66% during 2000-01 and 20.60% in 2001-02). In second experiment, dolomite + irrigation + KCl and dolomite + irrigation + KNO3 treatments reduced the occurrence of spongy tissue at both 14 Ana mature fruits (80-90%) and 16 Ana (90-100%) mature fruits.