How to identify hard seeds?
Take 100 seeds and place them in a small vessel. Fill the vessel with 100ml of water. Wait for 2 hrs and at the end count the number of seeds that have swollen upon imbibition. The number of seeds not imbibed are termed as hard seeds. How to reduce hard seed content? As mentioned earlier, if the hard seed content is more than 10% the seeds can be given acid treatment. Seeds possessing hard seeds are treated with 10% commercial sulphuric acid. The seeds are placed in plastic bucket and acid is added at 100ml per kilo of seed. The acid added seed is stirred with wooden stick for 2 minutes and then immediately washed with water three times to remove acid completely. The seeds are then dried in shade for 4 hours Soaking seeds in nutrient solution Pulses are generally grown as rainfed and some times the seed crop even though not recommended as a rainfed crop may experience drought situations. Plants can be hardened by providing certain nutrients and hormones that help the plants to fight of
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