现代农业科技
現代農業科技
현대농업과기
XIANDAIHUA NONGYE
2015年
14期
143-144,160
,共3页
黎清%孙同高%胡柔璇%叶嘉明%陈红跃
黎清%孫同高%鬍柔璇%葉嘉明%陳紅躍
려청%손동고%호유선%협가명%진홍약
干旱胁迫%楠木%阴香%光合特性
榦旱脅迫%楠木%陰香%光閤特性
간한협박%남목%음향%광합특성
drought stress%Phoebe zhennan%Cinnamomum burmanni%photosynthetic characteristics
对一年生的楠木、阴香苗木进行干旱和复水处理，测定和分析干旱胁迫对各树种净光合速率(Pn)、蒸腾速率(Tr)、水分利用效率(WUE)与气孔导度(Gs)等光合特性的影响。结果表明：干旱胁迫发生时，楠木和阴香的各项指标均有下降的趋势；但随着复水处理的开始，各项光合参数又有不同程度的升高趋势；阴香的抗逆性表现优于楠木。
對一年生的楠木、陰香苗木進行榦旱和複水處理，測定和分析榦旱脅迫對各樹種淨光閤速率(Pn)、蒸騰速率(Tr)、水分利用效率(WUE)與氣孔導度(Gs)等光閤特性的影響。結果錶明：榦旱脅迫髮生時，楠木和陰香的各項指標均有下降的趨勢；但隨著複水處理的開始，各項光閤參數又有不同程度的升高趨勢；陰香的抗逆性錶現優于楠木。
대일년생적남목、음향묘목진행간한화복수처리，측정화분석간한협박대각수충정광합속솔(Pn)、증등속솔(Tr)、수분이용효솔(WUE)여기공도도(Gs)등광합특성적영향。결과표명：간한협박발생시，남목화음향적각항지표균유하강적추세；단수착복수처리적개시，각항광합삼수우유불동정도적승고추세；음향적항역성표현우우남목。
One-year-old seedlings of Phoebe zhennan and Cinnamomum burmanni were treated with drought stress and re-watering,the photosynthetic rate(Pn),the transpiration rate(Tr),the water use efficiency(WUE)and the stomatal conductance(Gs)were determined and analyzed with drought stress of the two tree species.The results showed that when the drought stress occurred,each index of Phoebe zhennan and Cinnamomum burmanni showed a tendency to decline;but at the beginning of the re-watering,the photosynthetic parameters had different degree of rising trend.By contrast,the resistance performance of Cinnamomum burmanni was better than that of Phoebe zhennan.
