ISHS Acta Horticulturae 239: VI International Symposium on Growth Regulators in Fruit Production
DEPLETION OF INDOLE-3-ACETIC ACID IN MALFORMED TISSUES OF MANGO (MANGIFERA INDICA L.) AND ITS ALLEVIATION |
| Authors: | B.S. Dhillon, Z. Singh |
| Abstract:
A three-year study of malformation in mango (Mangifera indica L.) revealed lower levels of endogenous indole-3-acetic acid in malformed panicles at stages (i) fully swollen buds, (ii) bud inception, (iii) fully grown panicles prior to full bloom and (iv) fully grown panicles at full bloom than in healthy ones. Likewise, the shoots bearing malformed panicles maintained lower levels of IAA compared with shoots bearing healthy panicles at all the developmental stages. A spray of catechol (1000 ppm) prior to flower bud differentiation (1st week of October) significantly reduced malformation and improved yield. Treatments with gallic acid, salicylic acid and naphthalene acetic acid also reduced malformation and improved yield. | |
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