Improved horticultural practices against leaf wilting, root rot and nutrient uptake in mango (Mangiferaindica L.).
Muhammad Nafees, Saeed Ahmad, Raheel Anwar, Ishtiaq Ahmad, Maryyam, Hussnain R. R.
Author Affiliation: University College of Agriculture and Environmental Sciences, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan.
Pakistan Journal of Agricultural Sciences 50 : 393-398
Abstract : Poor plant health condition due to various known biotic and abiotic stresses; becoming a disaster in each mango growing country of the world including Pakistan. On the basis of previous research on the identification of pathogen and several abiotic factors; Soil drenching and foliar spray of various concentrations of Topsin M (TMIC), Aliette (ATP) and Ridomil Gold (ACE) in combination with CuSO4 (Copper sulphate) was done on mango plants of cv. S.B. (Samar Bahist) Chaunsa showing wilting of leaves and shoots. Foliar application of micro-nutrients (Fe, B and Zn) (Iron, Boron and Zinc) was also practiced to improve general health of experimental plants Month-wise emergence of flushes was significantly higher in all treated plants compared with control. Percentage of wilted leaves and root rot in plants, which received drenching and foliar treatments, was significantly reduced (?50%) compared with untreated plants. Nitrogen, phosphorus and potassium (N, P and K) levels in leaves were significantly improved in treated plants compared with control. Sigmoid relationship was observed between fungicides and copper sulphate concentrations and uptake of N, P and K in treated plants. Application of 250 g ATP fungicide by foliar spray plus 125 g by soil drench, each along with 50 g CuSO4 proved to be the best against leaf wilting and it improved the N and P level in leaves. While, application of 250 g TMIC by foliar spray and 125 g by soil drench, each with 50 g CuSO4, was found to be the best to reduce the spread of root rot in experimental plants. Preliminary spray of TMIC along with Copper sulphate is effective to improve plant health of mango cv. S.B. Chounsa.