Foliar nutrition and wood growth in red pine: effects of darkening and defoliation on the distribution of 14C-photosynthate in young trees

Autor:	P. V. Rangnekar, D. F. Forward
Rok vydání:	1973
Předmět:	Shoot Botany Plant Science Biology Red pine Whorl (botany)
Zdroj:	Canadian Journal of Botany. 51:103-108
ISSN:	0008-4026
DOI:	10.1139/b73-015
Popis:	Young red pine trees were supplied with 14CO2 through a branch in the third whorl. Darkening or removal of all other needles caused a major diversion of 14C to the expanding terminal shoot. Defoliation had a much greater effect than darkening. The diversion can be only partially explained on the basis of removal of competing sources of carbohydrate. Use as well as distribution of labeled photosynthate was affected by the treatments.
Databáze:	OpenAIRE
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