American Journal of Plant Physiology1557-45391557-4547Academic Journals Inc.10.3923/ajpp.2009.18.23Stevia rebaudiana Bertoni in Autumn]]>ChengguoLv LeiMa YanShi 1200941Relationship between diurnal changes of net photosynthetic
rate (Pn) and the impact factors in leaves of Stevia rebaudiana Bertoni
were studied. Diurnal changes of Pn and environmental factors (photosynthetic
available radiation and temperature and relative humidity) and physiology
factors (stomatal conductance and transpiration rate and intercellular
CO2) in leaves of Stevia rebaudiana Bertoni chicory
were measured using LI-6400 portable photosynthesis system. The relationship
between Pn and environmental factors were analyzed by regression analysis
and path analysis. The results showed that the curve of diurnal changes
of Pn was demonstrated two peaks in clear day and appeared midday depression
at noon and the stomatal conductance decreased. All those were due to
high photorespiration which was caused by high light intensity and high
temperature.]]>Kovylyaeva, G.I., G.A. Bakaleinik, I.Y. Strobykina, V.I. Gubskaya and R.R. Sharipova et al.,2007Stevia rebaudiana.]]>438185Bahrun, A., C.R. Jensen, F. Asch and V.O. Mogensen, 2002Zea mays L.).]]>53251263Brandle, J.E. and N. Rosa,1992Stevia rebaudiana.]]>7212631266Crammer, B. and R. Ikan,198622915916Geuns, J.M.C.,200364913921Raschke, K. and A. Rsemann,19882 assimilation in leaves of Arbutos unedo L. diurnal changes in photosynthetic capacity related to changes in temperature and humidity.]]>168546558Morison, J.I.L.,19872 Concentration and Stomatal Response to ACO2.]]>1987pp: 251-299pp: 251-299Schulze, E.D., N.C. Turnere, T. Gollan and K.A. Shackel,19871987pp: 311-321pp: 311-321Sharkey, T.D. and T. Ogawa,19871987pp: 195-227pp: 195-227 Pandey, S., S. Kumar and P.K. Nagar,2003Ginkgo biloba L. grown under high and low irradiance.]]>41505511 Heber, U., S. Neimanis and O.L. Lange,1987167554562Young, H.C.,2002Stevia rebaudiana leaves.]]>55617620Starratt, A.N., C.W. Kirbyb, R. Pocsa and J.E. Brandle,2002Stevia rebaudiana.]]>59367370