CAJ | 학술논문

环境胁迫一直以来是影响植物生长和农作物产量的主要因素，而覆盖植物叶片表层的蜡质层在植物生长发育和适应外界环境方面起着关键作用。本试验以中花11、广盐2号和Z46这3个水稻品种进行干旱胁迫处理，通过扫描电镜观察叶片表面蜡质覆盖密度，以及测定叶片相对含水量、叶绿素浸提率以及失水率等生理指标，从而综合分析干旱胁迫对不同水稻品种叶片表面蜡质积累的影响。结果表明：干旱胁迫条件下，3个试验的水稻品种叶片相对含水量降低，叶表面蜡质覆盖量增加，叶绿素浸提率以及离体叶片失水率下降。
배경협박일직이래시영향식물생장화농작물산량적주요인소，이복개식물협편표층적사질층재식물생장발육화괄응외계배경방면기착관건작용。본시험이중화11、엄염2호화Z46저3개수도품충진행간한협박처리，통과소묘전경관찰협편표면사질복개밀도，이급측정협편상대함수량、협록소침제솔이급실수솔등생리지표，종이종합분석간한협박대불동수도품충협편표면사질적루적영향。결과표명：간한협박조건하，3개시험적수도품충협편상대함수량강저，협표면사질복개량증가，협록소침제솔이급리체협편실수솔하강。
Environmental stresses are the main factors which affect plant growth and crop yield. Wax layer which covers the plant surface plays a key role in plant growth and development, and adapting to the external environment. In this study, three rice varieties such as“Zhonghua 11”,“Euryhaline 2”and“Z46”were treated by drought, then the leaf surface wax coverage was observed by scanning electron microscope (SEM), and the relative water content, chlorophyll extraction rate and water-loss rate were determined so as to analyze synthetically the effect of water stress on the leaf epicuticular wax coverage. The results showed that the leaf relative water content of three tested rice varieties decreased, the leaf epicuticular wax crystals increased, and the chlorophyll leaching and water loss rate decreased under drought resistance.