Effect of red and far-red light on inhibition of hypocotyl elongation in ecotypes of Betula pendula Roth
Berhanu A. Tsegay1*, Jorunn E. Olsen2, and Olavi Junttila3
1Department of Biology, Bahir Dar University, Ethiopia.
2Dept. of Biology and Nature Conservation, Agricultural University of Norway, N-1430 Ås.
3Department of Biology, University of Tromso, Norway.
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