Relation between nuclear DNA content and rate of cell growth during interphase in four species of Angiospermae

Abstract

Among four species of Angiospermae with known nuclear DNA content (Cucurbita pepo - 2.6 pg, Helianthus annuus - 12.0 pg, Vicia faba — 38.0 pg, and Tulipa kaufmanniana - 93.7 pg) the cell growth in the intermitotic period of the cell cycle has been observed to be the fastest in Vicia faba, slower in Helianthus annuus and the slowest in Cucurbita pepo and Tulipa kaufmanniana.