Effect of some organic nitrates on germination of Cenchrus biflorus Roxb seeds.
Effect of some organic nitrates on seed germination of Cenchrus biflorus, collected from Karachi University (Pakistan), was investigated. Of the three organic nitrates nitroglycerine and isosorbide mono-nitrate stimulated seed germination in the dark. Nitroglycerine significantly (P at most 0.05) enhanced the final germination percentage at 0.1 to 100 mM, isosorbide mono-nitrate elevated the final germination percentage only at 10 and 100 mM while isosorbide di-nitrate did not significantly alter the total germination percentage over the controls. Potassium nitrates stimulated germination only at high concentration. Results are discussed in relation to the effect of organic and inorganic nitrates and nitrites and their possible mode of action.