【摘要】 以4个嫁接时期(1月、2月、3月和6月)核桃砧木、穗条内含物的变化特征为对象,研究内含物对核桃嫁接成活的影响。结果表明:单宁、植物总酚、钠、钾含量以3月最低,蛋白质和镁含量最低水平分别出现在1月和6月;含水率、钾和植物总酚含量以6月最高,全氮、钠和单宁含量以1月最高,而蛋白质和镁含量以3月最高,其余内含物皆因砧木和穗条的不同,极值出现的时期有所差异;嫁接成活率以3月最高,可达56%;嫁接成活率与穗条蛋白质、单宁和总酚含量及砧木总酚、钾含量相关性均达显著或极显著水平。四川盆地核桃枝接的最佳时期为3月,穗条蛋白质、单宁和总酚含量及砧木总酚、钾含量是影响核桃嫁接成活的重要因子。更多还原

【Abstract】 The effects of variation characteristics of inclusions in walnut stock and scion on the survival of walnut grafting during 4grafting terms(including January,February,March and June)were studied.The results indicat that the contents of vegetable tannins,plant polyphenol,sodium and potassium were the lowest in March,and the lowest value of soluble protein and magnesium appeared in January and June,respectively.However,the contents of magnesium and soluble protein were the highest in March.The highest value of water,potassium and plant polyphenol appeared in June,and that of total nitrogen,sodium and vegetable tannins appeared in January.In addition,the maximum and minimum contents of other inclusion appeared in different months because of the difference of stock and scion.The grafting survival rate was the highest in March.It was up to 56%.The correlation between the grafting survival rate and the content of soluble protein,vegetable tannins and plant polyphenol of scion was significant at P≤0.05 or P≤0.01,respectively.On the other hand,it was also significant at P≤0.05 or P≤0.01 between the grafting survival rate and the content of plant polyphenol,potassium of stock.Therefore,the best term to graftwalnut in the Sichuan basin is in March,and the contents of soluble protein,vegetable tannins,plant polyphenol of scion and plant polyphenol,potassium of stock are important factors in affecting the grafting survival rate of walnut.更多还原