GA 도포제 처리가 ‘포모사’ 자두의 생리적 낙과 및 과실 특성에 미치는 영향

윤석규,배해진,윤익구,남은영,권정현,전지혜,정경호 (사) 한국생물환경조절학회 2013 생물환경조절학회지 Vol.22 No.4

본 연구에서는 GA 2.5% 도포제 처리가 자두 과실의생리적 낙과 억제 및 과실 품질에 미치는 영향을 검토하였다. ‘포모사’ 과실에 대한 GA 도포제 처리는 과실의 생리적 낙과를 경감시켰으며 수정 후 처리시기가 빠를수록 생리적 낙과방지 효과가 높았다. ‘포모사’ 품종에 GA 도포제를 처리하고 착과율을 조사한 결과, 착과율은 만개 후 3일 처리에서 61%, 만개 후 13일 처리에서 15%로 무처리 5%에 비해 현저히 높았다. GA 도포제 처리구에서 착과율 증가는 ‘하니레드’, ‘추희’ 품종에도 유사한 경향이었다. 또한, GA 도포제 처리는 과실의 비대 및 과실 성숙에 영향을 주었다. GA 도포제처리구에서 ‘포모사’ 과실의 비대 양상을 조사한 결과,만개 후 80일까지는 대조구와 유사하였으나, 만개 후80일 이후에 대조구에 비해 과실 무게가 높게 나타났다. GA 처리된 ‘포모사’ 과실은 과중이 약간 높고, 당도,산 함량 및 경도는 약간 낮은 것으로 나타났다. 그리고,‘포모사’ 과실에서는 수확기 직전 즉 만개 후 85일경에sucrose 함량이 증가하는데 GA 처리는 sucrose 함량증가시기를 앞당겼다. 이를 종합하면, GA 도포제 처리는 자두에서 과실 생리적 낙과를 경감시켰으며 또한과실의 성숙을 촉진하고 성숙기에 과실 비대를 촉진하였다. Fruit drop is a serious problem in plum trees during fruit development after pollination and fertilization. In order to increase fruit yields, physiological fruit drop in plum trees at the early stages of fruit development must be reduced. In this study, the effect of gibberellic acid paste (GA paste 2.7%) applied on ‘Formosa’ plum was determined to reduce fruit drop. GA paste was applied one time on one set of the fruit stalk at 3 days after full bloom (DAFB), and on another set of the fruit stalk at 13 DAFB, and then the fruit-set rate was observed at 70 DAFB. GA paste application increased the fruit-set rate up to 61%. In ‘Formosa’, the time of GA application had a strong influence on reducing fruit drop. GA application increased the fruit-set rate up to 61% in treatments at 3 DAFB, and to 15% in treatments at 13 DAFB when the fruit-set rate was 5% in the control group. The same results were observed in ‘Honey Red’ and ‘Akihime’ plums. GA application impacted on fruit enlargement in the ‘Formosa’ cultivar, compared with the control trees, which had no GA application. The rate of fruit enlargement with GA application was similar to that of the control fruits until 70 DAFB, whereas the enlargement rate was slightly higher in the GAtreated trees than the control from 70 DAFB until harvest. In GA-treated fruit, fruit weight increased more than in the control, while total acidity and firmness was lower than in the control group. Additionally, GA application accelerated sucrose increase in maturing fruit. Our data indicated that GA paste application can reduce fruit drop, and subtly promote fruit enlargement and maturation in plum trees.

Application of Cut-Style Pollination Method in Alstroemeria spp.

Nam Gyu Jo,Tae-Ho Han,SeongHwa Bak 한국화훼학회 2024 화훼연구 Vol.32 No.3

알스트로메리아(Alstroemeria)는 알스트로메리아과(Alstroemeriaceae) 에 속하는 단자엽 식물로, 세계적으로 인기 있는 절 화 작물이다. 국내에서도 재배되는 대부분의 품종은 수입묘로, 비싼 로열티를 지불하고 있어 국내 품종 육성의 필요성이 제기 되고 있다. 따라서 본 연구는 수정 전 장벽 타파 방법 중 하나인 화주절단수분법을 알스트로메리아에 적용하여 자가수분을 통 한 착과율과 종자 결실 수를 파악하여 화주절단수분법의 가능성 을 알아보기 위해 수행하였다. 그 결과 착과율은 무 절단, 20% 절단, 50% 절단, 90% 절단, 100% 절단에서 각각 80%, 60%, 30%, 10%, 0%로 나타났으며, 처리구별로 수분 전과 수확 후 자방의 크기는 통계적으로 유의한 차이가 없었다. 종자 결실 수는 무 절단, 20% 절단, 50% 절단, 90% 절단, 100% 절단에서 각각 22개, 10개, 3개, 1개, 0개로 나타났다. 자방 당 종자수는 2.2개 1개 0.2개, 0.1개, 0개로 확인되었다. 이 실험결과를 바탕 으로, 자가수분을 통한 화주절단수분법으로는 자방 당 종자 수 의 증대를 기대하기 어렵지만, 자가불화합성 계통 또는 종간교 배를 통한 품종 육성 시 화주절단수분법이 새로운 품종 육성에 활용될 가능성이 있을 것으로 판단된다. Alstroemeria spp, a monocot plant belonging to the family Alstroemeriaceae, is a globally popular cut flower crop. Most of the cultivars grown domestically are imported, and high royalties are required, highlighting the need for the development of domestic cultivars. This study aimed to evaluate the feasibility of the cut-style pollination method, a technique commonly used to overcome pre-fertilization barriers, by applying it to Alstroemeria, and assessed the fruit set ratio and seed yield through self-pollination and cut-style pollination. The results showed that the fruit set ratios were 80%, 60%, 30%, 10%, and 0% for the non-cut, 20% cut, 50% cut, 90% cut, and 100% cut treatments, respectively. Additionally, there were no statistically significant differences in ovary size among the treatments, either before pollination or after harvest. The number of seeds produced was 22, 10, 3, 1, and 0 for the non-cut, 20% cut, 50% cut, 90% cut, and 100% cut treatments, respectively. The number of seeds per ovary was confirmed to be 2.2, 1, 0.2, 0.1, and 0, respectively. Based on these experimental results, it is challenging to expect an increase in the number of seeds per ovary through cut-style pollination with self-pollination. However, the cut-style pollination method may be useful in breeding new cultivars, especially in overcoming pre-fertilization barriers in self-incompatible lines or during interspecific hybridization.

수분수 종류에 따른 키위프루트 ‘선플’과 ‘감황’의 과실 품질과 종자 형성

이목희,장연진,김성철,김홍림,좌재호,김진국 (사) 한국생물환경조절학회 2024 생물환경조절학회지 Vol.33 No.3

본 연구는 국내 육성 품종 ‘선플’과 ‘감황’ 과실 생산에 적합한 수분수를 선발하기 위해 ‘SKK2’, ‘델리웅’, ‘보화’, ‘Chieftain’ 각각의 꽃가루로 인공수분하여 과실 품질과 종자의 발육을 조사하였다. 착과율은 두 품종이 모든 처리구에서 96% 이상이었다. ‘선플’은 ‘델리웅’ 처리에서 과중이 가장 높았고 2021년은 ‘보화’ 처리에서 2022년은 ‘Chieftain’ 처리에서 가장 낮았다. ‘감황’은 2021년에 ‘델리웅’ 처리에서 2022년은 ‘Chieftain’ 처리에서 과중이 가장 높아 연차 간 차이를 보였다. ‘선플’의과실 품질 조사 결과, 2022년에 건물률은 ‘SKK2’처리에서가장 높고 가용성 고형물 함량은 ‘Chieftain’에서 가장 높았으며 2021년에는 처리 간 유의차가 없었다. ‘선플’의 총 종자 수와 미숙 종자 수는 6배체 수분수 처리구에서 가장 많았고 천립중은 4배체 수분수 처리구에서 무거웠다. ‘감황’의 과실 품질조사 결과, 건물률과 산 함량은 2년 모두 ‘SKK2’ 처리에서 가장 높았고 가용성 고형물 함량은 연차 간 차이를 나타냈다. ‘감황’의 총 종자 수와 성숙 종자 수는 ‘델리웅’과 ‘Chieftain’ 처리에서 가장 많았고 미숙 종자 수는 ‘SKK2’ 처리에서 가장 적었다. This study aimed to assess the characteristics of fruit quality and seed formation resulting from pollination by four different pollen donors: ‘SKK2’, ‘Deliwoong’, ‘Pohwa’, and ‘Chieftain’. The objective was to identify the most effective pollen donor for yielding commercially viable fruits in two cultivars of kiwifruit (Actinidia chinensis var. chinensis): ‘Sunfl’ and ‘Garmhwang’. Over a two-year period, the fruit setting rate for ‘Sunfl’ and ‘Garmhwang’ kiwifruit, pollinated by the four donors, consistently exceeded 96%. For ‘Sunfl’, the heaviest fruit weight was observed when pollinated with ‘Deliwoong’ for both years, while the lightest fruit was associated with ‘Pohwa’ in 2021 and ‘Chieftain’ in 2022. For ‘Garmhwang’, there was a yearly variation with the heaviest fruit weight linked to ‘Deliwoong’ in 2021 and ‘Chieftain’ in 2022. When examining the fruit characteristics of ‘Sunfl’, the dry matter content was highest when pollinated by ‘SKK2’, and the soluble solids content peaked with ‘Chieftain’ in 2021, although no significant differences were observed in 2022. Total and immature seed numbers in ‘Sunfl’ were highest with hexaploid pollen donors, while the 1000-seed weight was highest with tetraploid pollen donors. For the fruit characteristics of ‘Garmhwang’, the dry matter content and titratable acidity were highest when pollinated by ‘SKK2’. Soluble solids content showed annual variation. Mature and total seed number in ‘Garmhwang’ were highest with ‘Deliwoong’ and ‘Chieftain’, while the immature seed number was lowest with ‘SKK2’.

선인장 Astrophytum asterias와 Astriphytum myriostigma의 생육, 개화 및 종자형성 특성

송천영,이동철,박인태,조창휘,홍승민 한국화훼산업육성협회 2009 화훼연구 Vol.17 No.4

선인장 Mammillaria goldii, M. theresae와 M. pseudopectinata의 생육, 개화 및 종자형성 특성

송천영,이동철,박인태,박화순,홍승민 한국화훼산업육성협회 2009 화훼연구 Vol.17 No.4

적화제 및 적과제가 ‘감홍’ 사과의 착과와 과실 품질에 미치는 영향

유진기(Jingi Yoo),강봉국(Bong Kook Kang),김대현(Dae Hyun Kim),이진욱(Jinwook Lee),이동훈(Dong Hoon Lee),권헌중(Hun-Joong Kweon),최인명(In Myung Choi),정희영(Hee Young Jung),정명근(Myoung-Gun Choung),최동근(Dong Geun Choi),강인규(In-K 한국원예학회HST 2016 원예과학기술지 Vol.34 No.1

표고별 여름작형 착색단고추의 고온기 과실특성과 경영요인 분석

이종남(Jong Nam Lee),이응호(Eung Ho Lee),임주성(Ju Sung Im),김원배(Won Bae Kim),용영록(Young Rok Yeoung) 한국원예학회HST 2008 원예과학기술지 Vol.26 No.3

적과제 처리가 ‘홍로’와 ‘후지’ 사과의 착과 및 과실품질에 미치는 영향

유진기(Jingi Yoo),박무용(Moo-Yong Park),강인규(In-Kyu Kang) 한국원예학회 2014 원예과학기술지 Vol.32 No.5

Benzyladenine (BA, 99% purity), MaxCel<SUP>®</SUP> (1.9% BA), Fruitone (3.5% NAA), MaxCel<SUP>®</SUP> + Fruitone, a nd s imazine were applied postbloom as fruitlet thinning agents to mature ‘Hongro’ and ‘Fuji’ apple (Malus domestica Borkh.) trees. BA and MaxCel<SUP>®</SUP> were applied at 100 ㎎·L<SUP>-1</SUP> a.i. while Fruitone at 0.1 ㎎·L<SUP>-1</SUP> a.i. and simazine at 400 ㎎·L<SUP>-1</SUP> a.i. All PGRs were applied at 8 days after full bloom (DAFB, 6 ㎜ fruit diameter) in both cultivars, while simazine was treated twice at 7 and 14 DAFB. In ‘Hongro’, the number of total fruit set per flower cluster in terminal buds was 1.67, 1.84, and 1.81 in MaxCel® + F ruitone, MaxCel<SUP>®</SUP>, and simazine applications, respectively, when compared with 2.35 of water control. These reductions in fruit set were mainly attributed to the increased ratio of defruited clusters by the thinning agents. In ‘Fuji’ apple, the number of total fruit set per flower cluster in terminal buds was 1.29, 1.60, and 1.76 in MaxCel<SUP>®</SUP> + F ruitone, Fruitone, a nd MaxCel<SUP>®</SUP>, respectively, when compared with 2.56 of water control in ‘Fuji’ apple. The addition of Fruitone to the MaxCel<SUP>®</SUP> promoted the thinning efficacy in both cultivars, compared to MaxCel<SUP>®</SUP> only. The thinning efficacies were similarly observed with lateral flowers in both cultivars. A significant increase of fruit weight by the postbloom thinning treatments was observed only in the BA application in ‘Hongro’, while the effect was observed in BA and MaxCel<SUP>®</SUP> in ‘Fuji’. While the soluble solids content increased in the BA, MaxCel<SUP>®</SUP> and MaxCel<SUP>®</SUP>+Fruitone treatments in both cultivars, other fruit quality attributes were not affected by the application of post-bloom thinning agents.

프리뮬라의 수분 시기, 방법 및 주두 위치에 따른 종자형성 능력

송천영(Cheon Young Song) 한국원예학회HST 2006 원예과학기술지 Vol.24 No.2

Fatty alcohol 및 6-Benzyladenine 처리가 ‘후지’사과의 착과와 과실품질에 미치는 영향

신현우(Hyun-Woo Shin),유진기(Jingi Yoo),김우성(Woo-Sung Kim),권중근(Jung-Geun Kwon),나이묘윈(Nay Myo Win),강인규(In-Kyu Kang) 한국원예학회HST 2023 원예과학기술지 Vol.41 No.1