Heat Tolerance of Selected Species and Populations of Rhododendron

@article{Ranney1995HeatTO,
  title={Heat Tolerance of Selected Species and Populations of Rhododendron},
  author={Thomas G. Ranney and Frank Arthur Blazich and Stuart L. Warren},
  journal={Journal of the American Society for Horticultural Science},
  year={1995},
  volume={120},
  pages={423-428}
}
Temperature sensitivity of net photosynthesis (P N) was evaluated among four taxa of rhododendron including Rhododendron hyperythrum Hayata, R. russatum Balf. & Forr., and plants from two populations (northern and southern provenances) of R. catawbiense Michx. Measurements were conducted on leaves at temperatures rauging from 15 to 40C. Temperature optima for PN ranged from a low of 20C for R. russatum to a high of 25C for R. hyperythrum. At 40C, PN rates for R. hyperythrum, R. catawbiense… Expand

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