복숭아 수분용 품종 접목에 따른 착과율 비교 (Comparison of Fruit Setting Rate by Grafting with Pollinizer Cultivars in Peach Tree)

서지정보

· 발행기관 : 한국국제농업개발학회
· 수록지 정보 : 한국국제농업개발학회지 / 27권 / 1호 / 93 ~ 97페이지
· 저자명 : 김익제, 권의석, 이성희, 이재웅, 허윤선, 이기열, 김태중

초록

본 연구는 개화기간에 이상저온에 따른 착과불량을 개선하기 위해 수분수를 접목하여 활력 높은 화분의 공급으로 착과율을 향상시키기 위해 수행하였다.
1. 수분용 품종 중 ‘천홍’이 개화시와 개화기가 가장 빨랐고,‘유명’이 개화기와 만개기가 가장 늦었다.
2. 꽃 수는 ‘유명’이 가장 많았고, 화아 무게는 ‘천홍’이 가장 무거웠으며, 꽃 당 약의 수는 ‘천홍’이 가장 많았다.
3. 꽃 당 평균 화분 수는 ‘천홍’이 가장 많았고, 개화시기간의 비교에서는 개화기에 가장 많은 경향이었다.
4. 화분 발아율은 개화시에는 ‘천홍’이 가장 높았고, 개화기와 만개기에는 ‘유명’이 가장 높았다.
5. 상온에서 착과율은 개화시가 가장 빨랐던 ‘천홍’과 만개기가 가장 늦었던 ‘유명’의 수분수 조합에서 인공수분 대비92.3%로 가장 높았고, 저온처리에서도 ‘천홍’과 ‘유명’의 조합이 인공수분과 비슷한 수준으로 착과율이 높았다.

영어초록

We have conducted the research to find the solutions of poor fruit setting caused by abnormallow temperature during the blooming period of peach. Therefore this study was accomplished tosupply the high vigor pollens using grafting with pollinizer cultivars for increase of the fruit setting rate.
Seven cultivars for pollen supply were grafted on two-year-old ‘Kawanakajima Hakuto in March, 2013.
In the pollen supplier cultivars, the 10% blooming stage and 40% blooming stage of ‘Cheonhong’ wereearliest, but the 40% blooming stage and 80% blooming stage of ‘Yumyeong’ were latest. The number offlower was the highest in ‘Yumyeong’, and the weight of flower was the heaviest in ‘Cheonhong’. Theaverage pollen number of flower was the highest in ‘Cheonhong’. In comparison with the overall floweringperiod, the pollen number of flower was the highest in 40% blooming stage. The pollen germinationrate of 10% blooming stage was highest at 59.8 ± 7.21% in ‘Cheonhong’, that of 40% and 80% bloomingstage were highest at 81.9± 5.60% and 69.3± 6.89% in ‘Yumyeong’ respectively. When the fruit settingrates were examined at room temperature, that was highest at 92.3% in the pollen supplier combinationof ‘Cheonhong’ and ‘Yumyeong’ in contradistinction to the conventional artificial pollination. When thecold treatment was applied at –2oC for four hours, the fruit setting rate of combination of ‘Cheonhong’and ‘Yumyeong’ was highest as well. Based on the findings of this study, pollinizer combination of‘Cheonhong’ and ‘Yumyeong’ which have different flowering stages and high pollen vigor couldincrease the fruit setting rate at the abnormal low temperature, which was possible to replace the conventionalartificial pollination and induce the stable fruit setting semipermanently.

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