Mango is one of the popular fruits in the world due to its attractive color, delicious taste and excellent nutritional properties. Known for its sweet fragrance and flavor, the mango has delighted the senses for more than 4000 years. A celebrated fruit, mango, now produced in most of the tropical parts of the globe.

Monday, August 31, 2009

Mango malformation

Mango malformation
Mango malformation is widespread in subtropical regions of northern India.

The malformed panicles remain unproductive and are characterized by a compact mass of male flowers, greenish in color and stunted in growth.

The main and secondary rachis are thick and short and bear flowers with relative larger bracts, and petals are compared to normal flowers.

The malformed panicles remain intact on the tress for a considerable period which sometimes extends even to the next flowering season.

Though research efforts made hitherto have not been able to ascertain its etiology, the complexity of the disorder is attributed largely to cultural variation, nutritional, pathogenic, vital and hormonal imbalances.

While comparing the morphactin-induced malformed with healthy and naturally malformed panicles, it was observed that IAA-oxidase activity was higher in malformed panicles and much more in morphactin-induced malformation.

Catalase activity was also low in malformed panicles.

However, it may be pointed out that in morphactin-induced malformation, the bunch was much smaller than in naturally malformed panicle.

Some remedial measures include application of:

  • Planofix at the rate of 200 ppm spray followed by deblossoming of early emerged panicles in the in the heavily infested orchards

  • Deblossoming of early emerged panicles in the months of December and January in orchards where incidence is low.

  • Avoiding taking a excessive number of scion sticks from the same tree.

Mango malformation

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