不同防冻试验对蔓越橘越冬能力的影响

Effects of Different Antifreeze Tests on Overwintering Ability of Cranberry

为解决我国蔓越橘种植中的冻害问题,通过不同防冻方式(陆地覆盖物+浇水和大田封水试验),探索蔓越橘的越冬效果。结果表明,只进行覆盖物而不浇水处理蔓越橘越冬效果较差,覆盖物+浇水处理效果较好,与不浇水处理均达到差异极显著水平。覆盖物+浇水措施能有效提高蔓越橘抗寒能力,直立茎枯死率、伞状花数、叶腋芽数及顶芽或基部变黑发生率显著降低。覆盖物+浇水15 L/m^(2)处理可使蔓越橘安全过冬。大田封水处理防冻效果优于陆地覆盖物+浇水处理,适合于大面积种植生产。当封冻水没过植株顶端10 cm以上时蔓越橘可安全越冬。

In order to solve the problem of freeze injury in the planting of cranberry in China, the overwintering effect of cranberry was studied by Land Mulching + watering and field sealing. The results showed that overwintering effect of cranberry treated by Mulching and no watering were poor, and the effect of Mulching +watering were good, mulching + watering could improve effectively the cold resistance of cranberry, while the death rate of erect stems, the number of umbrella flowers, the number of axillary buds and the blackening rate of Terminal Buds or base buds were reduced significantly. when mulching + watering at 15 L/m2, land cranberries could survive safely in winter. The effect of field freezing water was better than that of land Mulching + watering technology, and it is suitable for widely planted. When the frozen water reached more than 10 cm above the top of the plant,cranberries could survive safely in winter.