Pub Date : 2019-04-01DOI: 10.12791/KSBEC.2019.28.2.178
Luc The Thi, Q. H. Nguyen, Y. Park, Byoung Ryong Jeong
Strawberry (Fragaria × ananassa) is one of the most important and popular fruit crops in the world, and ‘Sulhyang’ is one of the principal cultivars cultivated in the Republic of Korea for the domestic market. The growth and flower induction in strawberry is the process which influences directly on fruit bearing and yield of this crop. In this study, effect of benzyladenine (BA), gibberellic acid (GA3), and salicylic acid (SA) on growth and flower bud induction in strawberry ‘Sulhyang’ was investigated. The 3-week-old runner plants, grown in 21-cell propagation trays, were potted and cultivated in growth chambers with 25oC/15oC (day/night) temperatures, 70% relative humidity (RH), and light intensity of 300 μmol·m-2·s-1 photosynthetic photon flux density (PPFD) provided by white light emitting diodes (LEDs). The runner plants were treated with one of three concentrations, 0 (control), 100, and 200 mg·L-1 of BA, GA3, or SA solution. The chemicals were sprayed two times on leaves of runner plants at an interval of two weeks. After 9 weeks the results showed that the application of all chemicals caused reduction of root length and chlorophyll (SPAD) content as compared to the control. The lowest chlorophyll (SPAD) content was recorded in plants treated with GA3. However, the treatment of 200 mg·L-1 GA3 promoted leaf area, leaf fresh weight, and plant fresh weight. The greatest flower induction (85%) and number of inflorescences (4.3 inflorescences per plant) were observed in the treatment of 200 mg·L-1 SA, followed by 100 mg·L-1 SA. Overall, results suggest that foliar application of GA3 solution could accelerate plant growth, while foliar application of SA solution could induce hastened flowering. Further studies may be needed to find out the relationship between GA3 and SA solutions treated in a combination, and the molecular mechanism involved in those responses observed.
{"title":"Growth and Flower Bud Induction in Strawberry ‘Sulhyang’ Runner Plant as Affected by Exogenous Application of Benzyladenine, Gibberellic Acid, and Salicylic Acid","authors":"Luc The Thi, Q. H. Nguyen, Y. Park, Byoung Ryong Jeong","doi":"10.12791/KSBEC.2019.28.2.178","DOIUrl":"https://doi.org/10.12791/KSBEC.2019.28.2.178","url":null,"abstract":"Strawberry (Fragaria × ananassa) is one of the most important and popular fruit crops in the world, and ‘Sulhyang’ is one of the principal cultivars cultivated in the Republic of Korea for the domestic market. The growth and flower induction in strawberry is the process which influences directly on fruit bearing and yield of this crop. In this study, effect of benzyladenine (BA), gibberellic acid (GA3), and salicylic acid (SA) on growth and flower bud induction in strawberry ‘Sulhyang’ was investigated. The 3-week-old runner plants, grown in 21-cell propagation trays, were potted and cultivated in growth chambers with 25oC/15oC (day/night) temperatures, 70% relative humidity (RH), and light intensity of 300 μmol·m-2·s-1 photosynthetic photon flux density (PPFD) provided by white light emitting diodes (LEDs). The runner plants were treated with one of three concentrations, 0 (control), 100, and 200 mg·L-1 of BA, GA3, or SA solution. The chemicals were sprayed two times on leaves of runner plants at an interval of two weeks. After 9 weeks the results showed that the application of all chemicals caused reduction of root length and chlorophyll (SPAD) content as compared to the control. The lowest chlorophyll (SPAD) content was recorded in plants treated with GA3. However, the treatment of 200 mg·L-1 GA3 promoted leaf area, leaf fresh weight, and plant fresh weight. The greatest flower induction (85%) and number of inflorescences (4.3 inflorescences per plant) were observed in the treatment of 200 mg·L-1 SA, followed by 100 mg·L-1 SA. Overall, results suggest that foliar application of GA3 solution could accelerate plant growth, while foliar application of SA solution could induce hastened flowering. Further studies may be needed to find out the relationship between GA3 and SA solutions treated in a combination, and the molecular mechanism involved in those responses observed.","PeriodicalId":20654,"journal":{"name":"Protected horticulture and Plant Factory","volume":"os-45 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87239774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-01DOI: 10.12791/KSBEC.2019.28.2.110
Sang Se Oh, Myong Sun Park, Hyun Cheul Kim, J. Choi
{"title":"Growth of ‘Nokkwang’ Hot Pepper Plug Seedlings as Influenced by Various Ratios of Pre-planting NH4 +:NO3 - in Root Substrate","authors":"Sang Se Oh, Myong Sun Park, Hyun Cheul Kim, J. Choi","doi":"10.12791/KSBEC.2019.28.2.110","DOIUrl":"https://doi.org/10.12791/KSBEC.2019.28.2.110","url":null,"abstract":"","PeriodicalId":20654,"journal":{"name":"Protected horticulture and Plant Factory","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88194682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-01DOI: 10.12791/ksbec.2019.28.2.150
Seokcheol Yu, Jin-ho Choi, H. Lee, U. Lee
{"title":"Micrometeorology Analysis of Pear Orchard with Anti-insect Nets for Non-bagged Cultivation","authors":"Seokcheol Yu, Jin-ho Choi, H. Lee, U. Lee","doi":"10.12791/ksbec.2019.28.2.150","DOIUrl":"https://doi.org/10.12791/ksbec.2019.28.2.150","url":null,"abstract":"","PeriodicalId":20654,"journal":{"name":"Protected horticulture and Plant Factory","volume":"38 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87055540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-01DOI: 10.12791/KSBEC.2019.28.2.143
H. Kim, Y. Choi, Y. H. Kim
{"title":"Graft-taking and Growth Characteristics of Grafted Cucumber(Cucumis sativus L.) Seedlings as Affected by Light Quality and Blink Cycle of LED Modules","authors":"H. Kim, Y. Choi, Y. H. Kim","doi":"10.12791/KSBEC.2019.28.2.143","DOIUrl":"https://doi.org/10.12791/KSBEC.2019.28.2.143","url":null,"abstract":"","PeriodicalId":20654,"journal":{"name":"Protected horticulture and Plant Factory","volume":"445 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77022753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-01DOI: 10.12791/KSBEC.2019.28.2.95
H. Choi, T. Moon, D. Jung, J. Son
{"title":"Prediction of Air Temperature and Relative Humidity in Greenhouse via a Multilayer Perceptron Using Environmental Factors","authors":"H. Choi, T. Moon, D. Jung, J. Son","doi":"10.12791/KSBEC.2019.28.2.95","DOIUrl":"https://doi.org/10.12791/KSBEC.2019.28.2.95","url":null,"abstract":"","PeriodicalId":20654,"journal":{"name":"Protected horticulture and Plant Factory","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91542329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-01DOI: 10.12791/KSBEC.2019.28.2.134
H. Lee, Hye Min Kim, Hye Min Kim, Sang Hyun Park, S. Hwang
{"title":"Applicability of Artificial Light Source and Newly Developed Growing Medium for Lettuce Cultivation in a Closed-type Plant Production System","authors":"H. Lee, Hye Min Kim, Hye Min Kim, Sang Hyun Park, S. Hwang","doi":"10.12791/KSBEC.2019.28.2.134","DOIUrl":"https://doi.org/10.12791/KSBEC.2019.28.2.134","url":null,"abstract":"","PeriodicalId":20654,"journal":{"name":"Protected horticulture and Plant Factory","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90209576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-01DOI: 10.12791/KSBEC.2019.28.2.166
Hye Min Kim, S. Hwang
{"title":"Changes in Marketability of Strawberry ‘Maehyang’ for Export as Affected by Concentration of Gaseous Chlorine Dioxide Treatment","authors":"Hye Min Kim, S. Hwang","doi":"10.12791/KSBEC.2019.28.2.166","DOIUrl":"https://doi.org/10.12791/KSBEC.2019.28.2.166","url":null,"abstract":"","PeriodicalId":20654,"journal":{"name":"Protected horticulture and Plant Factory","volume":"71 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77352524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-01DOI: 10.12791/KSBEC.2019.28.2.126
Kyeong-Jin Kang, 강 경진, Jeong-Hak Seo, Hong-Ki Yoon, Jeong-Seok Seo, Taek-Yong Choi, J. Chun, 서 정학, 윤 홍기, 서 정석, 최 택용, 천 종필
{"title":"Effects of Wind Net Shading and Sprinkling on Growing Conditions and Fruit Quality in ‘Hongro’ and ‘Fuji’ Apple Fruits","authors":"Kyeong-Jin Kang, 강 경진, Jeong-Hak Seo, Hong-Ki Yoon, Jeong-Seok Seo, Taek-Yong Choi, J. Chun, 서 정학, 윤 홍기, 서 정석, 최 택용, 천 종필","doi":"10.12791/KSBEC.2019.28.2.126","DOIUrl":"https://doi.org/10.12791/KSBEC.2019.28.2.126","url":null,"abstract":"","PeriodicalId":20654,"journal":{"name":"Protected horticulture and Plant Factory","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80109249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-01DOI: 10.12791/KSBEC.2019.28.2.158
G. Bok, J. Choi, Hyunjoo Lee, K. Lee, Jongseok Park
{"title":"Microbubbles Increase Glucosinolate Contents of Watercress (Nasturtium officinale R. Br.) Grown in Hydroponic Cultivation","authors":"G. Bok, J. Choi, Hyunjoo Lee, K. Lee, Jongseok Park","doi":"10.12791/KSBEC.2019.28.2.158","DOIUrl":"https://doi.org/10.12791/KSBEC.2019.28.2.158","url":null,"abstract":"","PeriodicalId":20654,"journal":{"name":"Protected horticulture and Plant Factory","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87908984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-01DOI: 10.12791/KSBEC.2019.28.2.117
Y. Jeong, 정 영균, Jong Goo Lee, Enu Ki Ahn, Jae Seok Seo, H. Kim, Y. Yoon, 이 종구, 안 은기, 서 재석, 김 현태, 윤 용철
This study compared the temperature and humidity measured by an aspirated radiation shield (ARS), the accuracy of which has been recently verified, and those measured by a system developed by the parent company (Company A) to investigate and improve the performance of the developed system. The results are as follows. Overall, the two-plate system had a lower radiation shielding effect than the one-plate system but showed better performance results when excluding the effect of strawberry vegetation on the systems. The overall maximum temperature ranges measured by company A’s system and the ARS were 20.5~53.3C and 17.8~44.1C, respectively. Thus, the maximum temperature measured by company A’s system was 2.7~9.2C higher, and the maximum daily temperature difference was approximately 12.2C. The overall average temperature measured by company A’s system and the ARS was 12.4~38.6C and 11.8~32.7C, respectively. Thus, the overall average temperature measured by company A’s system was 0.6~5.9C higher, and the maximum daily temperature difference was approximately 6.7C. The overall minimum temperature ranges measured by company A’s system and the ARS were 4.2~28.6C and 2.9~26.4C, respectively. Thus, the minimum temperature measured by company A’s system was 1.3~2.2C higher, and the minimum daily temperature difference was approximately 2.9C. In addition, the overall relative humidity ranges measured by company A’s system and the ARS were 52.9~93.3% and 55.3~96.5%, respectively. Thus, company A’s system showed a 2.4~3.2% lower relative humidity range than the ARS. However, there was a day when the relative humidity measured by company A’s system was 18.0% lower than that measured by the ARS at maximum. In conclusion, there were differences in the relative humidity measured by the two company’s devices, as in the temperature, although the differences were insignificant. Additional key words : aspirated radiation shield, numbers of plates, relative humidity, solar radiation, temperature
{"title":"Analyzing the Performance of a Temperature and Humidity Measuring System of a Smart Greenhouse for Strawberry Cultivation","authors":"Y. Jeong, 정 영균, Jong Goo Lee, Enu Ki Ahn, Jae Seok Seo, H. Kim, Y. Yoon, 이 종구, 안 은기, 서 재석, 김 현태, 윤 용철","doi":"10.12791/KSBEC.2019.28.2.117","DOIUrl":"https://doi.org/10.12791/KSBEC.2019.28.2.117","url":null,"abstract":"This study compared the temperature and humidity measured by an aspirated radiation shield (ARS), the accuracy of which has been recently verified, and those measured by a system developed by the parent company (Company A) to investigate and improve the performance of the developed system. The results are as follows. Overall, the two-plate system had a lower radiation shielding effect than the one-plate system but showed better performance results when excluding the effect of strawberry vegetation on the systems. The overall maximum temperature ranges measured by company A’s system and the ARS were 20.5~53.3C and 17.8~44.1C, respectively. Thus, the maximum temperature measured by company A’s system was 2.7~9.2C higher, and the maximum daily temperature difference was approximately 12.2C. The overall average temperature measured by company A’s system and the ARS was 12.4~38.6C and 11.8~32.7C, respectively. Thus, the overall average temperature measured by company A’s system was 0.6~5.9C higher, and the maximum daily temperature difference was approximately 6.7C. The overall minimum temperature ranges measured by company A’s system and the ARS were 4.2~28.6C and 2.9~26.4C, respectively. Thus, the minimum temperature measured by company A’s system was 1.3~2.2C higher, and the minimum daily temperature difference was approximately 2.9C. In addition, the overall relative humidity ranges measured by company A’s system and the ARS were 52.9~93.3% and 55.3~96.5%, respectively. Thus, company A’s system showed a 2.4~3.2% lower relative humidity range than the ARS. However, there was a day when the relative humidity measured by company A’s system was 18.0% lower than that measured by the ARS at maximum. In conclusion, there were differences in the relative humidity measured by the two company’s devices, as in the temperature, although the differences were insignificant. Additional key words : aspirated radiation shield, numbers of plates, relative humidity, solar radiation, temperature","PeriodicalId":20654,"journal":{"name":"Protected horticulture and Plant Factory","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90529113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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