无核葡萄胚挽救技术研究

目的]研究无核葡萄胚挽救过程中的一些主要影响因素,为今后开展无核葡萄胚挽救育种提供参考。方法]以6个无核葡萄杂交及自交组合未成熟胚珠为试材,研究了接种时期、培养基及激素浓度对无核葡萄胚挽救效果的影响。结果]各组合适宜的胚珠接种时期为：火星无核×无核白鸡心在花后40d,金星无核×康能无核在花后55d,优无核×布朗无核在花后45d;采用ER为基本培养基更有利于胚珠的发育和萌发;不同品种的胚珠对培养基中IBA浓度要求不同,幼胚发育程度较高,败育时期较晚的胚珠,适合较低的IBA浓度,胚发育程度较低,败育较早的胚珠则需要较高的IBA浓度。结论]接种时期、培养基种类和培养条件对无核葡萄胚挽救的成功都非常重要,且各条件的确立要视具体品种而定。

Research on the Technique of the Embryo Rescue of Seedless Grape

Objective]The reference for the future conduct of the seedless grape breeding with the method of embryo rescue was provided through the study on the main factor in the process of embryo rescue.Method]The immature ovule of six seedless grape hybrids and inbred combinations being used as experimental material,the effect of the culturing time of ovule,medium and hormone concentration on its embryo rescue was studied.Results]The appropriate culturing time of the ovule of these materials was the 40th day afte...