Comparative effects of mono and dipotassium phosphates on cell leakiness in corn leaves

摘要: Abstract The quantity of nutrients which can be sprayed onto the foliage plants is limited by onset burn damage, but mechanism(s) induction are not defined. Droplets KH2PO4 applied to intact leaf cuticles induced damage at concentrations ≥ 0.50 M whereas K2HPO4 was damaging 0.05 M. Different cuticular penetration rates did account for these differences. We report here on comparative effects two salts membrane integrity, as expressed leakage U.V. absorbing constituents from cells. Infiltration a hypotonic solution (0.05 0.10 M) either salt into corn segments induce selective acceleration cells during 90 min. incubation. However, incubation in lead 87% increase efflux cell when followed 10 osmotic stress treatment 1M sucrose and subsequent transfer water. plants...