强特勒核桃在不同砧木上嫁接成活率的比较

Comparison of grafting survival rate of Chandler walnut on different rootstocks

分别以4年生的香玲、元丰、辽核一号、黑核桃、山核桃、河北普通核桃实生树和2年生的青林、河北普通核桃实生苗为砧木,于6月中旬高位芽接强特勒核桃优良品种,研究不同嫁接组合的成活率、生长状况。结果表明,所有嫁接组合成活率达86%~95%,以实生核桃、黑核桃嫁接成活率最高,分别为95.1%、93.5%,显著高于其他砧木。4年生砧树的新枝生长粗度以河北普通核桃实生树、元丰显著高,分别为2.12 cm、2.08 cm;新枝长度以实生核桃、元丰显著高,分别为95.57 cm、92.34 cm。在2年生青林砧木和河北普通实生核桃苗的成活率均在91%以上,新枝粗度、长度以青林的均显著大于河北普通实生核桃。

Four-year-old seedlings of Xiangling,Mototoyo,Liaohe No.1,Black Walnut,Hickory,Hebei common walnut,and two-year-old seedlings of Qinglin and Hebei common walnut were used as rootstocks respectively,and Chandler walnut was grafted in mid-June by high-bud grafting,the survival rate and growth condition of different grafting combinations were studied.The results showed that the survival rate of all the combinations was 86%~95%,and that of the walnut seedlings and black walnut were 95.1%and 93.5%,respectively,which were significantly higher than other rootstocks.The diameter of new branch of 4-year-old rootstocks were 2.12 cm and 2.08 cm,respectively.The length of new shoot were 95.57 cm and 92.34 cm,respectively.The phenomenon of small feet appeared on the Black Walnut rootstock.The survival rate of the 2-year old rootstock of qinglin and the seedling of hebei common walnut was more than 91%,and the diameter and length of new branches of qinglin were significantly higher than that of Hebei common walnut.