Anatomical Feature, Sugar, Carbohydrate, and Hormone Content of Normal and Abnormal Floral Buds in 'Niitaka' Pear Trees
2006
Kim, J.K. (National Horticultural Research Institute, RDA, Suwon, Republic of Korea) | Kim, S.H. (National Horticultural Research Institute, RDA, Suwon, Republic of Korea) | Yim, Y.J. (Konkuk University, Chungju, Republic of Korea) | Seo, H.H. (National Horticultural Research Institute, RDA, Suwon, Republic of Korea)
Seasonal changes in hormonal content and organic component along with anatomy of flower bud were examined for their potential relation to flower bud necrosis in 'Niitaka' pear trees. There were no visible anatomical differences between abnormal and normal flower buds till July 30, but the affected floral organs began to get browned from late August, and completely browned and necrotized on September 30. On July 30, no apparent differences in carbohydrate content were observed between normal and abnormal flower buds. However carbohydrate content in abnormal flower buds got lower from August 30 and contents of glucose, fructose, and total sugar remarkably lower as well.
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