this latter effect must be attributed to a loss of phytochrome.we demonstrate in the present paper that the effects of succedaneous red and far-red irradiations can be attributed altogether to phytochrome if several assumptions concerning the stability of phytochrome 730 ( hartmann , 1966 ; wagner and mohr , 1966 ) are made .
C0250581
a
C0031857
phytochrome