논문 상세보기
The Effects of Decreased Solar Intensity on the Growth and Yield of Rice in the Field. KCI 등재
- 언어ENG
- URLhttps://db.koreascholar.com/Article/Detail/319892
Light is a energy source for photosynthesis og green plant and sources for photoperiodsm and photomorphogenesis. Plants have showed a variety of reactions corresponding to the surrounding environment to survive, and have introduced environmental signal into growth development. Rice yield has reduced by increasing localized heavy rain that leads duration of solar intensity to decrease 10-16% during cultivation period. It is necessary to improve adaptive technology and observe change of rice yield and growth by decrease of solar intensity for safe culture of rice. For these reasos, we carried out shade culture experiment and compared to rice growth and yield for two rice varity(Dasanbyeo, Chuchengbyeo) in 2008, and we also performed shade culture experiment at two growth stage(panicle formation stage, booting stage) in order to research rice growth and yield by decease of solar intensity on 2009. We carried out shade treatment to make different solar intensity under three different conditions; control, 30-40% block, 70-80% block using shade net. As a result, experiment result showed that plant height and SPAD value were more inceased and tiller number was more deceased under shade treatment than control. Shade treatment decreased rice yield by reducing panicles number per m2 spikelet number per panicle, and percent ripened grain of yield component. The results of protein analysis showed difference between control and treatment.
