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牡丹在南方催花有些年份会失败,其中原因尚未见报道,我们想用低温处理牡丹解除休眠的试验,说明一个重要原因。试验材料为发育健壮的5～6生实生苗牡丹,落叶后从大田中连根掘出,喷清水,用塑膜包裹保湿,再用绳扎成捆放入冷室或在0℃以下自然低温处理,处理后放入温室。温室温度白天为25～28℃,夜间15℃。常规管理。试验结果如下:对照不经任何低温处理,从10月下旬移入温室到次年3月上旬经过4个多月的时间,花芽仍不萌动,始终处于休眠状态(图1)。室外夜间温
Peony in the Southern Call for flowers in some years will fail, of which the reasons have not been reported, we want to use low temperature peony dormancy test, an important reason. Test materials for the development of robust 5 to 6 live seedlings of peonies, deciduous roots dug out from the field, spray water, plastic wrap wrapped moisturizing, and then tied into bundles into a rope or rope in the natural temperature below 0 ℃ Treatment, into the greenhouse after treatment. Greenhouse temperature during the day for the 25 ~ 28 ℃, night 15 ℃. Routine management. Test results are as follows: Control without any low-temperature treatment, moved into the greenhouse from late October to early March the following year after more than 4 months, buds are still not germinated, and always in a dormant state (Figure 1). Outdoor night temperature