Stage-Specific Response of American Cotton (Gossypium hirsutum L. Van H-777) to Interactive effects of Sodium Chloride and Potassium Nitrate

摘要

Interactive effects of Sodium Cloride and Potassium Nitrate on vegetative and reproductive parameters were evaluated in American cotton (Gossypium hirsutum L. var H-777) grown under screen house conditions. Treatments with sodium chloride and potassium nitrate were given either after seedling emergence or at squaring. Reproductive stage was more sensitive to these treatments. Increasing potasium nitrate in presence of salt further aggravated the deleterious effects of high salt, thereby tolerance tosalt decreased. However, low salt with high level of potassium nitrate stimulated plant growth and cotton yield and thus salt tolerance increased Various organs showed different degrees of response to salt and potassium nitrate.