Abstract
Two varieties of wheat, Lutescens and a cross of Reward × Caesium, were both grown in the greenhouse at four levels of soil moisture supply. The plants produced were harvested individually and subjected to structural counts, measurements, and weighings designed to illustrate certain components of growth and yield.Significant effects of moisture supply on number, height, and weight of shoots, number of fertile heads, and weight, size, and nitrogen content of grain per plant and per shoot, differing in some cases in the two varieties, were demonstrable. The relation between the production of straw and fruiting parts per tiller also seemed to be a varietal characteristic. It is suggested that, observations of this type, under field plot conditions, on a relatively small number of plants grown under controlled moisture supply, might provide useful information respecting the adaptability of different varieties of plants.
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