Biennial vegetable seed production, however, can be achieved using two planting techniques: "seed-to-seed" method vs "root-to-seed" method. The seed field must be separated from fields of other varieties at least by 1600 m for foundation class and 1000 m for certified class seed production. In cabbage, during seed production, three methods have been followed to facilitate flowering and seed production. Seeds … 1.Stump method. Vegetable seed crops must be planted so that sufficient vegetative development occurs to support optimum fruit and seed development. Induce feminized pollen chemically. Different methods of seed production. I. This is the recommended and professional way of creating feminized seeds. Pollination is chiefly done by bees. Nursery . Seed rate. 375 to 400 g /ha. What are the Feminized Seed Production Techniques? In the case of lettuce, none of these techniques have been harnessed for mass production of hybrid seed so all lettuce seeds are open-pollinated at this time. Most agriculturists recognize it is unwise to cut costs by saving a few dollars on seeds of a substandard cultivar or by purchasing lower quality seeds. When the crop in the first season is fully matured, the heads are … Inducing male plants in producing feminized seeds through another female plant is the main process of this technique. 2.1 Collection from natural sources (a) Collection of fish, shrimp and prawn seed: life stages collected from the wild for culture; area suitable for seed collection - …

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