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绪言无核的生食和制干葡萄受世界上许多消费者的喜爱。但是,作为经济栽培,满意的无核品种却很少。败育型无核品种的育种受到下列几个问题的阻碍:①无核品种只能用作父本;②有核×无核的后代无核率很低,平均只有15%;③极早熟有核品种的种子常
INTRODUCTION Seedless raw and dried grapes are loved by many consumers in the world. However, as economic cultivation, there are few satisfactory seedless varieties. Breeding of aborted non-nuclear varieties is hindered by the following problems: ① non-nuclear varieties can only be used as male parents; ② nuclear × non-nuclear offspring of nuclear rate is very low, an average of only 15%; ③ very precocious Seed of nuclear species often