Effect of phosphorus on bacterial leaf spot disease incidence,and chemical composition and storage quality ofPiper betle leaves |
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| Authors: | A R Wasnikar S K Khatik M L Nayak S K Vishwakarma L K Punekar |
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| Institution: | 1. Dept. of Plant Pathology, J.N. Agricultural University, 482004, Jabalpur, M.P., India
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| Abstract: | Biochemical analysis of betel leaves infected by leaf spot and blight caused byXanthomonas campestris pv.betlicola showed a decrease in moisture, chlorophyll, protein, phenol and total carbohydrate contents as compared with healthy leaves. The decrease in these five parameters was 31-42%, 29-70%, 20-79%, 30-53% and 53-87%, respectively. Application of 100 kg P2O5/ha gave maximum height of vine, number of leaves per vine and fresh weight of 100 leaves, as compared with treatments of 25, 50, 75 and 125 kg P2O5/ha. Except for 25 kg P2O5/ha, all treatments enhanced the keeping quality compared with the control (no P2O5). Incidence of bacterial leaf spot decreased significantly as phosphorus level increased. |
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