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Rockwool과 Phenolic Foam 배지에서 양액공급 방법이 파프리카(Capsicum annuum) ‘Veyron’의 생육과 수량에 미치는 영향
김광수(Kwang Soo Kim),이용범(Yong Beum Lee),황승재(Seung Jae Hwang),정병룡(Byoung Ryong Jeong),안철근(Chul Geon An) 한국원예학회 2013 원예과학기술지 Vol.31 No.2
This study was carried out to find a reasonable irrigation method of a nutrient solution for the phenolic foam slab (foam LC) used in a trial experiment to substitute the rockwool slab in the production of paprika (Capsicum annuum ‘Veyron’). 100, 90, and 80 mL of a nutrient solution was supplied per plant each time when the accumulated radiation reached to 100, 90 Jㆍ㎝?², and they were named as the 100-100, 90-90, and 90-80 treatment, respectively. The drain percentage per plant of the 100-100 treatment was high by 33.8% in rockwool and 36.7% in foam LC (Lettuce Cube) and that of 90-80 treatment was low by 30.4% and 33.7%. The water content and EC of the rockwool slab were maintained in the range of 63.6-68.9% and 4.4-5.1 mSㆍ㎝?¹, while those of the foam LC slab were in the range of 52.9-58.8% and 5.5-6.5 mSㆍ㎝?¹. The plant height and leaf size of the 100-100 and 90-90 treatments increased in a similar manner, while those of the 90-80 treatment decreased and those of the rockwool were greater than those of the foam LC. The fruit size and weight of the 100-100 and 90-90 treatments were similarly bigger and heavier than those of the 90-80 treatment. The number of fruits harvested per plant was the greatest in the 90-80 treatment with 8 and 8.3 fruits in the rockwool and foam LC. The number of marketable fruits in the rockwool and foam LC was the greatest with 18.1 and 18.2, respectively, in the 90-90 treatment, while that in the 90-80 treatment was 17.2 and 16.8, respectively. The number of unmarketable fruits of the 90-80 treatment was the greatest (1.7-1.8 fruits per plant) in both the rockwool and foam LC, and most of them were small sized or blossom end rot fruits. The yield of the 90-90 treatment was the greatest among the irrigation.
Jeong Wook Heo(허정욱),Yong Beum Lee(이용범),Dong Eok Kim(김동억),Yu Seob Chang(장유섭),Changhoo Chun(전창후) 한국원예학회 2010 원예과학기술지 Vol.28 No.1
To verify the possibility of LEDs as supplementary lighting sources for greenhouse production of foliage plants, growth and development, sugar content, starch content, and chlorophyll and carotenoid contents of potted Dieffenbachia amoena ‘Camella’ and Ficus elastica ‘Melany’ plants were investigated. The plant response varied by monochromatic or mixture of blue and red LEDs and by species. In both species, monochromatic red and supplementation with blue plus red LEDs increased plant height and number of unfolded leaves, while the blue plus red LED treatment promoted the uptake and utilization of nitrogen in Ficus plant. Supplementation with any LEDs did not cause any changes in contents of chlorophyll a and b and total carotenoids. Dry weight and starch content of Dieffenbachia and Ficus and the number of branches in Dieffenbachia increased by supplementation with mixture of blue and red LEDs without any negative effects compared with the control treatment. Results indicate that supplementation with mixture of blue and red LEDs, compared to other light treatments, is beneficial for promotion of growth and development without any negative effects on biochemical characteristics in Dieffenbachia and Ficus.