1963•Australian Journal of Biological SciencesOpen access

Studies on the Growth of the Barley Apex I. Interrelationships Between Primordium Formation, Apex Length, .and Spikelet Development

PB Nicholls, LH May

Abstract

A detailed study has been made of the morphology of the spring.barley apex from shortly after germination to shortly before heading. The effects of 8- and 24-hr light periods and three levels of soil-moisture tension were examined with reference to the total number of primordia initiated on the main stem, the length of the apex, and the rate of spikelet development.

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Key concepts: Apex (geometry), Primordium, Biology, Germination, Heading (navigation), Botany, Morphogenesis, Agronomy