Effects of different rootstocks grafting on survival and growth of Cerasus×kanzakura'Tairyo-zakura'
To investigate the effects of rootstock types and specifications on survival and growth of Cerasus×kanzakura'Tairyo-zakura'.The survival rate,good healing rate and height index of C.campanulata'Zhongguohong',C.speciosa'Xiaoqiao',and C.yunnanensis'Guangzhou'cerasus with 3 different ground diameters(small,medium,and large)were measured regularly,and the current year strong branches of Cerasus×kanzakura'Tairyo-zakura'cerasus were used as scions.The results showed that 6-9 mm C.campanulata'Guangzhou'used to graft C.×kanzakura'Tairyo-zakura'had the best effect,and the survival rate and good healing rate were 98.00%and 93.10%,respectively.The variety and size of rootstocks had no significant effect on the growth of the grafted seedling height and diameter of C.×kanzakura'Tairyo-zakura',among which the grafted seedling height of 16-20 mm C.campanulata'Zhongguohong'was the largest(289.50 cm),and the grafted seedlings diameter of 10-15 mm C.yunnanensis'Guangzhou'was the largest(16.77 mm).The height and diameter of the grafted seedlings of C.×kanzakura'Tairyo-zakura'grew the fastest from February to April,and there were two growth peaks in the grafted seedlings diameter of some rootstock and scion combinations.The overall survival rate and plant height index indicated that the grafted rootstock of C.×kanzakura'Tairyo-zakura'was 6-9 mm in length.
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