Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2013, Vol. 29 ›› Issue (25): 12-15.doi: 10.11924/j.issn.1000-6850.2013-0612

• 23 • Previous Articles     Next Articles

Daily changes of photosynthetic characteristics of four cultivars of tung tree (Vernicia fordii)

  

  • Received:2013-03-07 Revised:2013-06-19 Online:2013-09-05 Published:2013-09-05

Abstract: The photosynthetic characteristics of four cultivars of tung tree were measured with lico-6400 photosynthetic instrument.The results showed that:⑴ Net photosynthetic rate , stomatal conductance and transpiration rate of the cultivas‘Putaotong’,‘Xiaomitong’and ‘Duiniantong’were changed as single peak curve,while ‘Damitong’was changed as bimodal peak curve;(2) Intercellular CO2 of four cultivars of tung tree concentration appeared to vary in a V-shaped curve; (3)The order in daily chang of average net photosynthetic rate of them was taken as‘Putaotong’>‘Xiaomitong’>‘Duiniantong’>‘Damitong’; (4) The impact order that main ecological physiological of net photosynthetic value of tung tree was transpiration rate>intercellular CO2 concentration>PAR>stomatal conductance.