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Asian Journal of Plant Sciences
Year: 2004  |  Volume: 3  |  Issue: 1  |  Page No.: 108 - 113

Influence of Phosphorus and Potassium Supply to the Mother Plant on Seed Yield, Quality and Vigour in Pea (Pisum sativum L.)

Muhammad Amjad, Muhammad Akbar Anjum and Nadeem Akhtar    

Abstract: Phosphorus (0, 23, 46 or 69 kg P2O5 ha-1) and potassium (0, 50, 100 or 150 kg K2O ha-1) were applied in various combinations to pea crop at the time of seed bed preparation. Nitrogen dose (46 kg N ha-1) was kept constant and applied in two split doses, i.e. half at the time of sowing while the other half was applied before flowering. Seed yield, 1000 seed weight and percentage of large sized seeds (<6.25 mm in dia.) increased significantly with increasing level of P2O5. However, time taken to complete 50% germination and electrical conductivity of seed leachates decreased significantly. Application of K2O to the crop had significant positive influence on seed yield, 1000 seed weight and percentage of large sized seeds up to the dose of 100 kg ha-1. Time taken to complete 50% germination and electrical conductivity of seed leachates were also affected significantly being minimum at the dose of 100 kg K2O ha-1. Application of P2O5 and K2O to the crop had no significant effect on seed germination percentage.

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