不同抗冻剂对花椒抗寒性的影响

Effects of Different Antifreezes on Cold Resistance of Zanthoxylum bungeanum

以甘肃省临夏州河滩镇祁杨村6 a生花椒为试材,对花椒喷施不同次数0.5%磷酸二氢钾溶液和0.5%蔗糖溶液,观察了不同处理的花椒的物候期,并测定不同处理下花椒的萌芽率、受冻率、新梢生长量、坐果率和结实情况。结果表明:喷施不同次数0.5%磷酸二氢钾溶液和0.5%蔗糖溶液对花椒新梢生长量增长、坐果率增高、产量增加和抗寒性提高有不同的效果,其中喷施1次0.5%磷酸二氢钾溶液效果最好,喷施3次0.5%蔗糖溶液效果较好。

Effects of different antifreezes on cold resistance of Zanthoxylum bungeanurn were studied in Hetan town of Gansu Province. There were six treatments according to the different rato of 0. 5% KH2 PO4 and 0.5 % sucrose for Zan thoxylum bungeanum, observing changes of germination rate, frostbite rate, shoot growth, fruit setting rate and seed setting rate among different treantments in growing periods. The results showed that there were good effects on determining indexes, however, the best treatment was spraying once for 0.5 % KH2 PO4, spraying three times 0. 5% sucrose was the following one.