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자료유형
학술저널
저자정보
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한국원예학회 HORTICULTURE ENVIRONMENT and BIOTECHNOLOGY HORTICULTURE ENVIRONMENT and BIOTECHNOLOGY Vol.50 No.3
발행연도
2009.6
수록면
181 - 187 (7page)

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MaxCel<SUP>®</SUP>, benzyladenine containing product developed for postbloom apple thinner, was tested to reduce the crop load of ‘Hongro’ and ‘Fuji’/M.9 apple trees (Malus domestica) in Jangsu, Korea. In 2005, to determine the appropriate application rate, 75 or 100 ㎎ㆍL?¹ a.i. MaxCel was applied to ‘Hongro’, while 100 or 125 ㎎ㆍL?¹ to ‘Fuji’ apple. Carbaryl at 1,000 ㎎ㆍL?¹ was involved for comparison. In 2006, the appropriate timing of application was determined by spraying the trees with MaxCel at 100 and 125 ㎎ㆍL?¹ for ‘Hongro’ and ‘Fuji’ apple, respectively, at various times between 6- to 15-㎜ fruit size. In general, thinning response to MaxCel was proportional to rate. In ‘Hongro’, we found quite variable thinning activities year to year: MaxCel at 100 ㎎ㆍL?¹ a.i. applied at around 10-㎜ fruit size reduced crop load by 25% in 2005, while the reduction was almost doubled in 2006. In ‘Fuji’, 125 ㎎ㆍL?¹ MaxCel applied at around 10-㎜ fruit size reduced crop load about 26%. In both cultivars, MaxCel worked better than carbaryl that showed just a slight thinning activity. Tank mixed with carbaryl, the lower rate of MaxCel (75 ㎎ㆍL?¹ for ‘Hongro’ and 100 ㎎ㆍL?¹ for ‘Fuji’), reduced the crop load to the level similar to their higher rate. The effect of MaxCel on fruit quality at harvest or after storage was found to be minimal in both cultivars, except for a slight reduction in fruit firmness of ‘Hongro’ apple by MaxCel treatment. As for timing of application, in general, similar thinning responses occurred regardless of the application timing (6- to 15-㎜ fruit size) on both cultivars.

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Abstract
Introduction
Material and Methods
Results
Discussion
Acknowledgements
Literature Cited

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