JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2009, Vol. 33 ›› Issue (06): 83-.doi: 10.3969/j.jssn.1000-2006.2009.06.019

Previous Articles     Next Articles

Physiological characteristics for drought resistant Chilopsis linearis, an introduction tree to dryhot valley

SUN Yongyu1,2, CHEN Yanbin3, ZHANG Chunhua1, LUO Changwei1, LI Kun1,2   

  1. 1.Research Institute of Resource Insects, CAF, Kunming 650224, China; 2.SFA’s Yuanmou Degraded Ecosystem Location Research Station, Yuanmou 651302, China; 3.Panzhihua State Forest Farms, Panzhihua 617007, China
  • Online:2009-12-18 Published:2009-12-18

Abstract: Study on daily changes in physiological characteristics Chilopsis linearis, a introduction tree to dryhot valley. The testing index included water potential, detached leaves dehydration change, photosynthesis rate,stomata conductance, leaf transpiration rate and intercellular CO2 concentration. The results showed that Ch.linearis reduced water potential to availably absorb water from soil under drought stress , detached leaves dehydration was slow and water keeping ability was better. Ch.linearis photosynthesis daily progress was a double peak curve, it maintained low photosynthesis at 14:00 when the temperature, sunlight and soil water were all bad. The results of physiological characteristics and field growing showed that Ch.linearis adapted adverse weather of dryhot valley and grew normally.

CLC Number: