市场上最近几年出售的无籽西瓜存在着果形不正,皮厚空心,无籽性不良果肉中有黄筋、硬块、糖分低、中边糖梯度大,这些都是品质不佳,对此介绍一些改良方法,供大家研究。 一、选择优良的园形果品种。如需峰花皮、蜜红、蜜都无籽,黑密2号、农友新一号等为宜。 二、选择在从主蔓第3-4节雌花坐果。这样瓜果形端正,果大品质好坐果节位过高(主蔓第5雌花以上)或低(主蔓第1～2雌花)都容易果形不正。 三、授粉均匀。自然授粉为雌花的3瓣柱头只授上1瓣或2瓣就会出现果形不正,栽培无籽西瓜最好采用人工授粉,并 Seedless watermelon sold in recent years in the market there is a fruit shape, hollow skin, seedless bad flesh with yellow ribs, lumps, low sugar, medium sugar gradient, these are poor quality, this Introduce some improved methods for your study. First, choose good garden fruit varieties. For the peak flower skin, honey red, honey are seedless, Black No. 2, the new farmer and other appropriate. Second, choose from the main vine 3-4 female flower fruit. This fruit-shaped, the fruit of good quality and good fruit node is too high (the main vine fifth female flowers above) or low (the main vine 1-2 female flowers) are easy fruit-shaped is not correct. Third, pollination uniform. Natural pollination of female 3-petal stigma only grant 1 or 2 will appear fruit shape is not correct, the cultivation of seedless watermelon is best to use artificial pollination, and