Korean Journal of Environmental Agriculture (한국환경농학회지)
- Volume 15 Issue 4
- /
- Pages.406-418
- /
- 1996
- /
- 1225-3537(pISSN)
- /
- 2233-4173(eISSN)
Effects of Depth and Duration of Water-logging on Growth and Yield at Germination and Seedling Stage in Tomato(Lycopersicon esculentum Mill.)
토마토(Lycopersicon esculentum Mill.)의 발아기(發芽期) 및 유묘기(幼苗期) 침수(浸水) 처리(處理)에 따른 생육(生育) 반응(反應)
- Guh, Ja-Ock (College of Agriculture, Chonnam National University) ;
- Roh, Sang-Eun (Oriental Chemical Industries) ;
- Kuk, Yong-In (College of Agriculture, Chonnam National University) ;
- Chon, Sang-Uk (College of Agriculture, Chonnam National University) ;
- Lee, Young-Man (College of Agriculture, Chonnam National University) ;
- Oh, Yun-Jin (National Yeongnam Agricultural Experiment Station)
- 구자옥 (전남대학교 농과대학) ;
- 노상언 ((주) 동양화학) ;
- 국용인 (전남대학교 농과대학) ;
- 천상욱 (전남대학교 농과대학) ;
- 이영만 (전남대학교 농과대학) ;
- 오윤진 (영남농업시험장)
- Published : 1996.12.30
Abstract
Tomatoes are water logged differently 0, 5, 10 and 15 cm, according to the developing stages such as germination and seedling stage under the condition of greenhouse. Along with this, they are treated according to the time condition such as 6, 12, 24, 48 and 120 hours. The results obtained are summarized as follows. 1. The result at germination stage Remarkable germination failure was observed when tomatoes were water-logged for 25 to 27 hours in the depth of 0 to 5 cm. Plant height recovered within 24 hours regardless of the water-logging depths. In the case of leaves, the recoverable time limit became shorter gradually in accordance with the increase of the water-logging depth. The decrease of the fresh weight showed acute response in the shoot rather than the root. It recovered with the 24 hours of water logging. Significant correlation was observed in all characteristics of plant height, number of leaves, fresh weight and germination rates according to the depth of water-logging. 2. The result at seedling stage Plant height recovered within the 24 hours of water-logging in the depth of 0 cm. On the deeper level, there was significant decrease regardless of time. With regard to the number of leaves, there was recovery up to 120 hours in the depth of 0 cm, up to 24 hours in the depth of 5 cm. There was, however, significant decrease when done for more than 6 hours on the deeper level. Growth of the shoot displayed the same tendency as in plant height and number of leave. The length of the longest root could be maintained by 80% in the water-logging of 0 cm compared with control. However in depth of 5 cm or more, it could not be maintained by the 120 hours water-logging. Root activity became conspicuously diminished with the logging over 0 cm. Respiration showed conspicuous decrease by the depth of 5 cm as a turning point. On the other hand, photosynthesis became decreased linearly by the depth of water-logging. Chlorophyll content displayed gradual decrease up to 48 hours, but conspicuously decreased up to 120 hours according to the varying depth of water-logging. Dieases tended to increase according to the depth and hours of water-logging. Diseases would be prevented by dint of insecticide, but there was no effect of fertilization. Weight and number of fruit per plant displayed gradual decrease as the depth and hours of water-logging became increased. Average weight of a fruit became increased. There was no statisticaly reciprocal effects between the depth and hours of water-logging. There was significant positive correlation among all the investigated characteristics, such as traits of growth and yield.
침수의 깊이와 시간에 따른 토마토의 생육단계별 생육저해정도와 수량 감소 및 이와 관련된 이병성, 시비효과, 형태적 특성 및 생리적 변화 등의 차이를 비교 검토하여 침수피해에 따른 피해정도의 예측에 기초자료로 활용하기 위하여 온실조건에서 발아기, 유묘기별로 각각 침수깊이를 지면위 0, 5. 10, 15 cm의 4개 처리에, 각각 시간을 6, 12, 24, 48, 120 시간으로 처리하였으며, 그 결과는 다음과 같다. 1. 발아기(發芽期) 만수(漫水) 반응(反應)