多效唑对草莓耐寒性的影响

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摘 要：为研究不同浓度多效唑对草莓耐寒性的影响，设置40、80、120、160、200、240mg/kg等6种剂量浓度的多效唑喷施草莓叶片，以清水为对照（CK）。用3～-15℃的低温处理草莓植株，根据相对电导配合Logistic方程，求得半致死温度（LT50），同时测定田间低温冻害指数、死亡率。结果表明：7个处理草莓叶片半致死温度为120mg/L（-9.00℃）

关键词：草莓;多效唑;相对电导率;半致死温度;耐寒性

中图分类号 S668 文献标识码 A 文章编号 1007-7731（2022）05-0080-03

Abstract： In order to study the effects of different concentrations of multi-effect azole on the cold tolerance of strawberry，strawberry leaves were sprayed with 40， 80，120， 160， 200， 240mg/kg multi-effect azole with clear water as control（CK）. Strawberry plants were treated at low temperature of 3～-15℃. According to the relative conductance and Logistic equation，the semi-lethal temperature（LT50）was obtained. At the same time，the field freezing injury index and mortality were measured. The results showed that the semi-conductivity death temperature of 7 treated strawberry leaves was 120mg/L（-9.00℃）

Key words： Strawberry; Multi-effect azole; Relative conductivity; Half lethal temperature; Cold tolerance

草莓（Fragaria ananassa Duch.），蔷薇科草莓属，半耐寒，相对耐冻。（剩余5200字）