CAJ | 학술논문

植物的抗旱性是一种综合性状,为客观评价供试不同种源香椿苗木的抗旱性,进行干旱胁迫处理后,选取净光合速率Pn等光合指标以及其他生理生长指标与生物量增量进行相关性分析,筛选出12个相关性强的生理生长指标.然后应用“坐标综合评定方法”对不同种源香椿在干旱胁迫下的抗旱反应作综合评定.结果表明,干旱胁迫下6个种源香椿的抗旱性等级由大到小依次为陕西安康、河南西峡、江苏南京、四川广元、湖北随州、湖南洞口.
식물적항한성시일충종합성상,위객관평개공시불동충원향춘묘목적항한성,진행간한협박처리후,선취정광합속솔Pn등광합지표이급기타생리생장지표여생물량증량진행상관성분석,사선출12개상관성강적생리생장지표.연후응용“좌표종합평정방법”대불동충원향춘재간한협박하적항한반응작종합평정.결과표명,간한협박하6개충원향춘적항한성등급유대도소의차위협서안강、하남서협、강소남경、사천엄원、호북수주、호남동구.
@@@@Drought resistance of plants is a kind of composite characteristics. In order to evaluate the drought resistance of seedlings of Toona sinensis with different provenances objectively,the correlations between some physiolo-gical indicators such as net photosynthetic rate(Pn) to biomass increment were conducted after drought stress. Twelve physiological indicators whose correlations were significant were choosed to evaluate the drought resistance by method of“coordinate composite evaluation of multiple dimension space”. The results showed that the order of drought resistance from strong to weak was Ankang of Shaanxi,Xixia of Henan,Nanjing of Jiangsu,Guangyuan of Sichuan,Suizhou of Hubei,Dongkou of Hunan.