Analysis of Relationship between Underground Part Environment Control and Growth and Yield of Sweet Pepper in Greenhouses as Affected by Covering Materials
2011
Kim, H.C., Wonkwang University, Iksan, Republic of Korea | Park, S.M., Wonkwang University, Iksan, Republic of Korea | Lee, J.H., Chonnam National University, Gwangju, Republic of Korea | Kang, J.G., Sunchon National University, Sunchon, Republic of Korea | Bae, J.H., Wonkwang University, Iksan, Republic of Korea
This research was carried out to investigate relationship between underground part environment control and growth or yield of sweet pepper in greenhouse as affected by covering materials. Daily amount of applied nutrient solution for research period in the greenhouse of plasticfilm house was more 1.6 times than that in glass house. But daily absorptance rate of nutrient solution and specific electrical conductance of rockwool between two greenhouses were not different in the range of 71.3~73.3% and 4.17~4.23 dSㆍm-¹, respectively. Leaf area of sweet pepper, in leaf growth characteristics in two greenhouses, were 123.0 ㎠/leaf (in glass house) and 119.5 ㎠/leaf (in plasticfilm house), but the another (fresh and dry weight, dry matter) were not different. But weekly yield per square meter in glass house was more 1.3 times than that in plasticfilm house as 850 gㆍm-² and 650 gㆍm-², respectively. Effect of slab EC and absorptance rate of nutrient solution on leaf growth characteristics and yield between two greenhouses were not different. The results show when sweet pepper is cultured in greenhouse as affected by covering materials and above ground part environment, the plant growth and yield are little affected by underground part environment.
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