61. Impact of fertilizer combinations on malformation physiology of mango panicles (Mangifera indica. L) cv. Dusheri

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Muhammad Azam, Rashad Qadri Muhammad Imran Khan Mumtaz Khan Naheed Akhtar Nazar Hussain Khan Chaudhary Muhammad Ayyub


Mango malformation is destructive malady in mango producing countries and causing significant economic loss.  The present/This study was undertaken to evaluate the effect of different combinations of N, P and K on incidence of malformation physiology of mango (Mangifera Indica. L) Cv. Dusheri. Each treatment of N (1000 g), P (750 g) and K (750 g) was soil applied during February and August to investigate time of flush emergence, malformation frequency and morphological parameters. Results revealed that the minimum number of malformed panicles and higher number of healthy panicles was observed in NPK treated plant. In addition, NPK treated plant exhibited higher length of healthy panicles. Moreover, NPK treatment showed lowest malformation intensity percentage as compared to other fertilizer treatments. The results regarding regrowth pattern of shoots after pruning showed that overall maximum percentage of such terminals remained pruned (93.59%) while some of its produced vegetative flushes (2.19%). However, alone or combine fertilizer application cannot control this malady. The present study, therefore, suggests proper and regular implementation of pruning practice to control this malady.

Keywords: Malformation; Mango; N, P and K fertilizer; Soil application



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