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Effect of Early Defoliation on Fruit Yield, Reserve Accumulations and Flower Bud Formation in `Sinano Sweet` Apple Trees
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조기낙엽이 사과 `시나노스위트`의 수량, 저장양분 및 꽃눈형성에 미치는 영향

논문 기본 정보

Type
Academic journal
Author
Jeom Hwa Han (국립원예특작과학원) Hyun Hee Han (국립원예특작과학원) Yong Hee Kwon (국립원예특작과학원) Jea Hoon Jung (국립원예특작과학원) Su-Hyun Ryu (국립원예특작과학원) Kyeong Ran Do (국립원예특작과학원) Han-Chan Lee (국립원예특작과학원) In Myeong Choi (국립원예특작과학원) Tae-Choon Kim (원광대학교)
Journal
The Korean Society For Bio-Environment Control Protected Horticulture and Plant Factory Vol.25 No.2 KCI Accredited Journals
Published
2016.6
Pages
133 - 137 (5page)

Usage

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📌
Topic
'시나노스위트' 사과 나무에서 조기 낙엽이 수량, 저장 양분 축적 및 꽃눈 형성에 미치는 영향을 조사하였다.
📖
Background
본 연구의 목적은 태풍과 우박으로 인한 낙엽 피해를 고려하여, 낙엽 처리에 따른 사과 나무의 생산성 및 생리적인 변화에 대한 기초 자료를 제공하는 것이다.
🔬
Method
8년생 '시나노스위트' 사과 나무에 대해 5월부터 10월까지 매월 조기 낙엽 처리를 실시하고, 낙엽 정도와 시기를 요인으로 수량, 저장 양분 및 다음해 꽃눈 수를 조사하였다.
🏆
Result
낙엽 시기가 빠르고 정도가 클수록 평균 과중과 수량이 감소하였으며, 30% 낙엽구는 무처리구와 유의한 차이가 없었다. 탄수화물 함량은 8월 이전에 낙엽 처리가 된 경우가 낮았으며, 꽃눈 수는 낙엽 시기가 늦을수록 감소하는 경향을 보였다.
Effect of Early Defoliation on Fruit Yield, Reserve Accumulations and Flower Bud Formation in `Sinano Sweet` Apple Trees
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‘Sinano Sweet’ apple trees were defoliated at intervals of a month from May to October to simulate damage occured by hail and typhoon in Korea, accordingly fruit yield, reserve accumulations and return bloom were investigated. As the more severe defoliation degree was and earlier defoliation time was, fruit weight and fruit yields were more decreased. Fruit weight and yields of 30% defoliated trees, regardless of the defoliation time, showed no significant difference with those of control. Because carbohydrate contents of the 2-year old branches defoliated before August were even lower than those of branches defoliated after September, it was considered that defoliation time is more effective on the carbohydrate content than defoliation degree. Among the trees defoliated before August, 50% defoliated trees at August contained the lowest carbohydrate by 50% of control. Time and degree of defoliation had an effect on the number of flower buds following year. The number of return bloom in trees defoliated from May to July was decreased by delay of defoliation time and was the lowest in trees defoliated at July. On the other hand, it was not have a significant different between control and trees defoliated since August. Relationship between the number of return bloom and carbohydrate reserves showed positive correlation. As a result, it is considered that fruit thinning, when defoliation occurred in the growing season, needs for strengthening the sink function of remained individual fruit effect on fruit enlargement and for increaseing the carbohydrate reserve effect on return bloom.
#carbohydrate content #return bloom #이듬해 화총 수 #탄수화물

AI Summary

Topic

'시나노스위트' 사과 나무에서 조기 낙엽이 수량, 저장 양분 축적 및 꽃눈 형성에 미치는 영향을 조사하였다.

Background

본 연구의 목적은 태풍과 우박으로 인한 낙엽 피해를 고려하여, 낙엽 처리에 따른 사과 나무의 생산성 및 생리적인 변화에 대한 기초 자료를 제공하는 것이다.

Method

8년생 '시나노스위트' 사과 나무에 대해 5월부터 10월까지 매월 조기 낙엽 처리를 실시하고, 낙엽 정도와 시기를 요인으로 수량, 저장 양분 및 다음해 꽃눈 수를 조사하였다.

Result

낙엽 시기가 빠르고 정도가 클수록 평균 과중과 수량이 감소하였으며, 30% 낙엽구는 무처리구와 유의한 차이가 없었다. 탄수화물 함량은 8월 이전에 낙엽 처리가 된 경우가 낮았으며, 꽃눈 수는 낙엽 시기가 늦을수록 감소하는 경향을 보였다.

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Abstract
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UCI(KEPA) : I410-ECN-0101-2017-520-000846353