• Title/Summary/Keyword: AVG (aminoethoxyvinylglycine)

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Effect of fruit quality, ethylene evolution and storage in apple 'Tsugaru' as influenced by aminoethoxy-vinylglycine and several surfactants (Aminoethoxyvinylglycine과 몇몇 전착제의 처리가 '쓰가루' 사과의 품질, ethylene 발생 및 저장성에 미치는 효과)

  • Kang, Chung-Kil;Jung, Jae-Hoon
    • The Korean Journal of Pesticide Science
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    • v.4 no.1
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    • pp.71-75
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    • 2000
  • This experiment was conducted to evaluate the effect of fruit quality, ethylene evoluoon and storage in apple 'Tsugaru' as influenced by aminoethoxyvinylglycine(AVG) and several surfactants. When treated with AVG+Silwet L-77, there were few significant differences in soluble solid and acidity as compared with control, but dichlorprop treatment significantly increased in soluble solid and decreased in acidity. Color development was decreased when treated with AVG+Silwet L-77. AVG+Silwet L-77 treatment decreased in ethylene evolution, and increased in storage. It can be concluded that fruit can be left in trees longer and still maintain storage, and more fruit is able to go to fresh market into long-term storage, which increase the market-ability of apple.

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Preharvest Drop Control of 'Tsugaru' Apple with Combined Use of Aminoethoxyvinylglycine and Several Adhesive Agents (Aminoethoxyvinylglycine과 몇몇 전착제의 혼용처리에 의한 '쓰가루' 사과의 수확전 낙과방지)

  • Kang, Chung Kil;Chae, Yun Seok;Kim, Su-Jeong
    • Horticultural Science & Technology
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    • v.17 no.6
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    • pp.750-752
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    • 1999
  • This experiment was conducted to evaluate preharvest drop control in 'Tsugaru' apple with combined treatments of aminoethoxyvinylglycine (AVG) and several adhesive agents. AVG+Silwet L-77 at $75+1,000mg{\cdot}L^{-1}$ was most effective among the tested combinations. Little or no significant difference was observed among the different application times of AVG+Silwet L-77. AVG+Silwet L-77 significantly reduced preharvest drop while increasing fruit weight, fruit length, diameter and fruit firmness. All the tested combinations were generally effective in reducing preharvest drop as compared to dichlorprop and in maintaining better fruit quality.

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Changes of Fruit Quality and Reduction of Physiological Disorders during Shelf-life in Early-season Pear (Pyrus pyrifolia Nakai) Fruits Treated with Aminoethoxyvinylglycine (Aminoethoxyvinylglycine 처리에 따른 조생종 배 유통기간 중 품질변화 및 생리장해 경감)

  • Lee, Ug-Yong;Oh, Kwang-Suk;Choi, Jin-Ho;Ahn, Young-Jik;Chun, Jong-Pil
    • Horticultural Science & Technology
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    • v.32 no.2
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    • pp.193-201
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    • 2014
  • We investigated the effect of preharvest spray of aminoethoxyvinylglycine (AVG) on the fruit quality and incidence of physiological disorders during shelf-life of 'Hanareum' and 'Wonhwang' pear (Pyrus pyrifolia Nakai). AVG applications (0, 75, 150 and $300mg{\cdot}L^{-1}$) made 30 days before anticipated harvest of respective cultivar. AVG did not influence the fruit development and quality parameters including starch content, soluble solids and acidity at harvest time in two pear cultivars although the flesh firmness of the fruits treated with $300mg{\cdot}L^{-1}$ AVG were higher than that of control in 'Hanareum' pear. Among the three AVG concentrations, only $300mg{\cdot}L^{-1}$ AVG showed effectiveness on maintaining flesh firmness in 'Hanareum' pear during shelf-life. Meanwhile, competitive high flesh firmness was attained in 'Wonhwang' pear treated with $150mg{\cdot}L^{-1}$ AVG (27.7 N) and $300mg{\cdot}L^{-1}$ AVG (28.2 N) when compared with untreated control (17.8 N) during 21 days of shelf-life at $25^{\circ}C$. AVG did not cause any significant difference at skin color development relative to control in two pear cultivars. AVG decreased ethylene production and respiration rate at $300mg{\cdot}L^{-1}$ level in two pear cultivars during the entire shelf-life. During shelf-life, low incidence of physiological disorders including internal and core browning and mealiness were attained in the fruits treated at $300mg{\cdot}L^{-1}$ AVG in two cultivars when we compared with the untreated control.

Effect of preharvest aminoethoxyvinylglycine spraying time on fruit quality of 'Nagasawa Hakuho' peach (Prunus persica Batsch) during shelf-life (Aminoethoxyvinylglycine 처리시기가 복숭아 '장택백봉'의 유통 중 품질에 미치는 영향)

  • Wang, Mao-Hua;Lee, Ug-Yong;Oh, Kwang-Suk;Lee, Eun-Gu;Ahn, Young-Jik;Hwang, Yong-Soo;Chun, Jong-Pil
    • Korean Journal of Agricultural Science
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    • v.39 no.4
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    • pp.503-509
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    • 2012
  • This research aimed to investigate the effect of preharvest spray of aminoethoxyvinylglycine (AVG) on fruit quality of 'Nagasawa Hakuho' peach (Prunus persica Batsch). The efficacy of various concentrations of AVG (75 and 150 mg/L), which inhibits the ethylene biosynthesis, was evaluated under field conditions. Treatments were performed 21, 14 and 7 days before harvest, respectively. Fruit weight, flesh firmness, soluble solids content, acidity, ethylene production, respiration rate and skin color difference were determined at harvest time and during shelf-life at $25^{\circ}C$. Results indicated that the most appropriate timing of AVG spraying was 21 days before harvest at the concentration of 75 mg/L as shown higher firmness at harvest time and lower ethylene production and respiration rate during shelf-life. Spraying of AVG during near harvest period (14 to 7 days before harvest) inhibited fruit growth slightly, independent of concentration and did not affect fruit quality in 'Nagasawa Hakuho' peach.

Effect of Aminoethoxyvinylglycine Treatment on Lipid Material Changes in 'Hongro' Apples (Aminoethoxyvinylglycine 처리가 '홍로' 사과 표피의 지질물질 변화에 미치는 영향)

  • Jun, YoungKeun;Kang, InKyu;Choi, Cheol
    • Current Research on Agriculture and Life Sciences
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    • v.33 no.1
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    • pp.33-35
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    • 2015
  • This study investigated the effect of AVG treatment on lipid material changes in the 'Hongro' apple epidermis. The internal ethylene concentration in 'Hongro' apples treated with $200mL{\cdot}L^{-1}$ AVG and stored at room temperature after harvest was significantly lower than that in 'Hongro' apples treated with $20mL{\cdot}L^{-1}$ Ethephon and the controls. During the same period, the emission of wax after the AVG treatment was also significantly lower than that after the other treatments. In conclusion, treatment with $220mL{\cdot}L^{-1}$ AVG two weeks before harvesting was found to be effective in improving and maintaining the quality of the 'Hongro' apples. Reducing the level of internal ethylene can delay the aging of fruit and inhibit the accumulation of wax in the fruit epidermis.

Effect of Aminoethoxyvinylglycine Dipping Treatment on Ethylene Production and Cell Wall Composition of 'Tsugaru' Apple Fruits during Cold Storage (Aminoethoxyvinylglycine 침지처리가 '쓰가루' 사과의 저온저장중 에틸렌발생과 세포벽성분들의 변화에 미치는 영향)

  • Kang In-Kyu;Choi Cheol;Choi Dong-Geun
    • Journal of Bio-Environment Control
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    • v.15 no.1
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    • pp.91-99
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    • 2006
  • This study was conducted to determine the influence of postharvest dipping treatment with aminoethoxyvinylglycine (AVG) on ethylene production and composition of non-cellulosic neutral sugars in cell walls of 'Tsugaru' apple fruits during storage. Fruits were harvested on August 20, soaked in AVG 50 and 75 $mg L^{-1}$ solution for 5 minutes, and stored in cold storage chamber at $0{\pm}1^{\circ}C$ for 60 days. Fruit quality factor, ethylene productions, and cell wall component changes were investigated at 20 days interval. As a result, the fruit firmness and acid content were much higher in AVG treated fruits than those of untreated one during 60 days of cold storage. Ethylene production of AVG treated fruits was reduced to the level of 1/10 compared with untreated one. As to the change of non-cellulosic neutral sugars in the cell walls of 'Tsu- garu' fruits, the major sugar was arabinose and galactose in water, CDTA and $Na_2CO_3$ soluble fractions. The content of arabinose and galactose in untreated fruits increased as the softening of fruits was in progress, but the fruits treated with AVG showed a little change during storage, so it is predicted that these two cell wall compositional sugars were not solubilized by the treatment of AVG. Accordingly, the marketability of 'Tsu- garu' fruits could remarkably increase when soaking the fruits in AVG solution after harvest.

Inhibition of Preharvest Drops by AVG Foliar Application in Staking Cultivation of Oriental Melon (Cucumis melo L. var. makuwa Mak.) Plants (AVG 처리(處理)에 의한 지주재배(支柱栽培) 참외의 낙과억제(落果抑制))

  • Chung, Hee-Don;Choi, Young-Jun;Ju, Sung-Don
    • Horticultural Science & Technology
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    • v.18 no.6
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    • pp.792-796
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    • 2000
  • The staking cultivation (SC) of oriental melon (Cucumis mela L. var. makuwa Mak.) produced more fruit yield than that of the conventional (creeping) growing. In the SC, preharvest fruit drop rate was high as 47.6% compared to 13.0% of the conventional cultivation. However, the foliar application of aminoethoxyvinylglycine (AVG, $100mg{\cdot}L^{-1}$) at 2 weeks after flowering (20 days before harvest) greatly reduced fruit drops up to 10.9% without causing any effects on ripening and quality of fruits . The AVG application markedly suppressed ethylene production in harvested fruits.

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Effects of ethephon and aminoethoxyvinylglycine on fruit quality and incidence of physiological disorders during simulated exportation environment in 'Wonhwang' pears (Ethephon 및 Aminoethoxyvinylglycine 처리가 '원황' 배 모의수출 환경에서의 품질 및 생리장해 발생에 미치는 영향)

  • Choi, Jin-Ho;Lee, Ug-Yong;Ahn, Young-Jik;Hwang, Yong-Soo;Chun, Jong-Pil
    • Korean Journal of Agricultural Science
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    • v.40 no.2
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    • pp.79-86
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    • 2013
  • We investigate the effect of preharvest spray of aminoethoxyvinylglycine (AVG), an inhibitor of ACC synthase activity, on fruit quality of 'Wonhwang' pear (Pyrus pyrifolia Nakai). And the effects were compared with ethephon which releasing ethylene to elucidate treatment efficacy of ethylene biosynthesis inhibitor on Asian pears. Chemicals were sprayed on 30 days before harvest with AVG (75 and 150 mg/L) and ethephon (100 mg/L), respectively. Highest flesh firmness during 21 days of shelf-life at $25^{\circ}C$ after 30 days of cold storage was attained in the fruit treated with 150 mg/L AVG (26.5N) when compared with untreated control (16.7N), while the fruits treated with 100 mg/L ethephon completely lost their marketability within 14 days of shelf-life by mass drop of firmness down to 11.6N. Low incidence of physiological disorders including pithiness and core browning were attained at the fruits treated with 150 mg/L AVG when we compared with untreated control. No occurrence of mealiness found in the fruits treated with AVG but ethephon treated fruits showed 36.4% during 14 days of shelf-life. Consequently, AVG spray at the concentration of 150mg/L on Asian pear 'Wonhwang' fruit regarded as useful preharvest management approach for keeping quality during marketing period after simulated exportation.

The Rhizome Growth and Shoot Induction Influenced by Ethylene in Cymbidium niveo-maginatum (옥화란(Cymbidium niveo-maginatum) Rhizome의 생장 및 유식물체 분화에 미치는 Ethylene의 영향)

  • 민병훈;정해준;이은경;황혜연;이영복
    • Korean Journal of Plant Tissue Culture
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    • v.25 no.6
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    • pp.515-518
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    • 1998
  • The effect of ethylene on the proliferation of rhizomes and plant regeneration were investigated from rhizome segment culture of Cymbidium niveo-marginatum. Ethylene levels in the rhizome culture vessels were reached a maximum after 8 days of culture; total amount of ethylene evolution was much on the initiation of shoot induction than of rhizome proliferation. The treatment with ethephon on rhizomes was inhibited in the proliferation of rhizome and the growth of shoot length; however, the treatment was effective on shoot induction from rhizomes. Aminoethoxyvinylglycine(AVG) 1mg/L was effective on the proliferation of rhizomes and shoot induction from them; however, the proliferation of them was inhibited, and the growth of shoot length was significantly promoted at the concentration of 10mg/L AVG. The presence of $\textrm{AgNO}_{3}$ inhibited in the proliferation of rhizomes and shoot induction from them.

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Effects of 1-MCP and AVG on the Vase Life of Cut Cymbidium Flowers (1-MCP, AVG 처리가 절화 심비디움의 수명에 미치는 효과)

  • Lee, Young-Ran;Choi, Seong-Youl;Kwon, Oh-Keun;Huh, Yeun-Joo
    • FLOWER RESEARCH JOURNAL
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    • v.18 no.4
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    • pp.251-255
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    • 2010
  • This study was conducted to investigate the detrimental effects of decapping and emasculation on the postharvest quality and the vase life of cut Cymbidium flowers with or without 1-Methylcyclopropene (1-MCP) and Aminoethoxyvinylglycine (AVG) treatments. The vase life treated by 1-MCP 150 ppb for four hours regardless of decapping or emasculation was significantly prolonged 12 days more. Ethylene production in the treatment without 1-MCP began to be raised from 7days, 1-MCP treatments, regardless of the concentration of processing did not occur until 15days. Ethylene began to production when the lip began to coloration. Compared to the 1-MCP effect, the AVG treatment of 0.5 and 1mM for four hours prolonged the vase life about nine days more. Whereas, the only decapping or emasculation treatments were effective to more three days longer in the vase life of cut Cymbidium' Halleluiah' flowers. 1-MCP treatment was very beneficial for Cymbidium 'Halleluiah' cut flowers than AVG.