Showing papers in "Annals of Botany in 1963"

TL;DR: The kinetics of cation exchange are consistent with a heterogeneous exchange phase containing regions of high charge density and regions with lower charge density, and at equilibrium the proportions of different cations in the exchange phase are largely explicable by a Donnan distribution.

TL;DR: Several species of Euphrasia were cultivated in the presence of chosen hosts and a number of characters measured and analysed as mentioned in this paper, showing that establishment increased the size and vigour of the parasite to a degree depending on the host species, Trifolium repens and Plantago coronopus being the most effective and Festuca ovina and Potentilla erecta the least.

TL;DR: Zea mays seedlings were irradiated when their primary roots were 10-20 mm long at doses of 900 or 1800 rad of unfiltered x rays, and it was concluded that the quiescent center is a reservoir of cells that will become meristematic after the normally meristenatic cells have suffered genetic death.

TL;DR: The cytology of coconut endosperm was studied from tender nuts from an ordinary tall variety of coconut palm, and a C-mitotic type of division was observed in the 3n and 6n nuclei, and it is suggested that this type of aberrant mitosis is responsible for the attainment of higher levels of ploidy in coconutendosperm.

TL;DR: The development of caryophyllaceous type of stomata in Asteracantha longifolia Nees is typically syndetocheilic and derived from the same meristemoid which ultimately gives rise to the guard cells.