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对自由传粉产生的桃实生苗进行了7年的选择,获得了 P_1和 P_2两个无性系,它们对周期性含有过量水分的粘质土具有良好的适应性.在栽植后第5或第6年 P_1每年结果60～90
The peach seedlings produced by free pollination were selected for seven years and two P 1 and P 2 clones were obtained, which had good adaptability to clayey soils containing excessive amounts of water.After planting, the 5th or 6th P_1 annual results of 60 to 90 years