论文部分内容阅读
用赤霉素(GA)处理未经层积处理的桃种子,不仅可以解除种子的休眠,促进其萌发,而且能使实生苗正常生长。所有试验的 GA 浓度(200、400、800、1600ppm)都能使种子的萌芽率超过60%,与对照(清水浸泡)比较差异均达到极显著水平;200、400、800ppm 处理对实生苗的生长有良好的效果,与对照(层积处理)比较差异都不显著。试验表明,用 GA 处理桃种子完全可以代替层积处理的作用,对果树育苗和育种具有实际应用价值。
GA treatment of non-stratified peach seeds can not only restrain seed dormancy, promote its germination, but also make the seedlings grow normally. GA concentrations (200, 400, 800 and 1600 ppm) in all the tested treatments resulted in more than 60% seed germination compared to the control (clear water immersion); 200,400 and 800 ppm treatments increased seedling growth Good results, compared with the control (stratification treatment) are not significant differences. Experiments show that GA treatment of peach seeds can completely replace the role of the stratification treatment, fruit tree seedling and breeding has practical value.