6個薄殼山核桃品種抗寒性研究

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中圖分類號：S664.1 文獻標(biāo)志碼：A 文章編號：1002-2910（2025）02-0034-04

Study on cold resistance of six Carya illinoinensis cultivars

JIA Botao1， CHEN Wei'， CAO Shun1， ZHANG Jingfa2， WANG Jingbo2， CAO Dayuel* （1.Changfeng NuttyPieAgricultural Co.，Ltd，Hefei，Anhui 230，China;2.Nuttyie Agricultural Co.Hefei， Anhui 230000， China）

Abstract： In order to evaluation of cold resistance in six Carya illinoinensis cultivars，lowtemperature environments were simulated in the laboratory to measure relative electrical conductivity （REC） changes in annual shoots under cold stress. Logistic equation regression analysis was applied to calculate lethal temperature（ ）as the cold resistance index. The results showed that REC of allcultivars’ shoots progressively increased with decreasing treatment temperature. values determined by Logistic fitting for the six Carya illinoinensis（Wichita， Pawnee，Shawnee，Mahan，AnnongNo.1， Jinhua） were ， ， 0 and ， respectively. Cold resistance ranking based on was： Pawnee > Mahan > Shawnee > Wichita > Jinhua > Annong No.1.

Key words： Carya illinoensis; cold resistance; logistic equation; semi-lethal temperature

薄殼山核桃（Caryaillinoensis）為胡桃科，原產(chǎn)于北美洲，又稱美國山核桃，是集堅果、油料及用材價值于一身的優(yōu)良樹種。（剩余5769字）