中国马铃薯
中國馬鈴藷
중국마령서
CHINESE POTATO
2012年
6期
325-328
,共4页
黄美杰%朱炎辉%孙慧生*%关翠涛%石园园%向新国
黃美傑%硃炎輝%孫慧生*%關翠濤%石園園%嚮新國
황미걸%주염휘%손혜생*%관취도%석완완%향신국
抗旱%克新1号%光强—光响应曲线
抗旱%剋新1號%光彊—光響應麯線
항한%극신1호%광강—광향응곡선
drought resistance%Kexin 1%light response curve
通过研究马铃薯抗旱品种‘克新1号’在干旱胁迫下光响应曲线的变化,在光合作用方面探讨‘克新1号’的抗旱机理.试验以两个抗旱性不同的品种‘克新1号’和‘大西洋’为试验材料,测定了两个品种在正常灌溉和干旱胁迫下各光和参数-光响应曲线.结果显示,干旱胁迫下,两个品种的叶片净光合速率、气孔导度及蒸腾速率均大幅度降低,但‘克新1号’叶片净光合速率高于‘大西洋’,在中强光下,‘克新1号’叶片的气孔导度及蒸腾速率均高于‘大西洋’.
通過研究馬鈴藷抗旱品種‘剋新1號’在榦旱脅迫下光響應麯線的變化,在光閤作用方麵探討‘剋新1號’的抗旱機理.試驗以兩箇抗旱性不同的品種‘剋新1號’和‘大西洋’為試驗材料,測定瞭兩箇品種在正常灌溉和榦旱脅迫下各光和參數-光響應麯線.結果顯示,榦旱脅迫下,兩箇品種的葉片淨光閤速率、氣孔導度及蒸騰速率均大幅度降低,但‘剋新1號’葉片淨光閤速率高于‘大西洋’,在中彊光下,‘剋新1號’葉片的氣孔導度及蒸騰速率均高于‘大西洋’.
통과연구마령서항한품충‘극신1호’재간한협박하광향응곡선적변화,재광합작용방면탐토‘극신1호’적항한궤리.시험이량개항한성불동적품충‘극신1호’화‘대서양’위시험재료,측정료량개품충재정상관개화간한협박하각광화삼수-광향응곡선.결과현시,간한협박하,량개품충적협편정광합속솔、기공도도급증등속솔균대폭도강저,단‘극신1호’협편정광합속솔고우‘대서양’,재중강광하,‘극신1호’협편적기공도도급증등속솔균고우‘대서양’.
To unravel the mechanism of drought tolerance in terms of photosynthesis, light response curves of 'Kexin 1' and 'Atlantic' were compared under treatments of regular irrigation and drought stress. Although both varieties showed significantly decrease in net photosynthetic rate, stomatal conductance and transpiration rate under drought stress, 'Kexin 1' stil exhibited greater net photosynthetic rate than that of 'Atlantic', and the stomatal conductance and transpiration rate of 'Kexin 1' were higher than those of 'Atlantic' under medium and strong light intensity.
