Effect of Different Pruning Methods on Flowering and Fruiting Characteristics Between Different Types of Male Sterile Lines in Broccoli Seed Plants Technical System of Hybrid Seed Production with Perennial Plants of Cotton Sterile Lines EFFECT OF DIFFERENT VARIETIES AND THE WINTER PRUNING METHOD ON MULBERRY RESISTANCE TO MOSAIC DISEASE Effect of Different Pruning Methods on Flowering and Fruiting Characteristics Between Different Types of Male Sterile Lines in Broccoli Seed Plants