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Effects of time of application of Ethrel on male sterility and ear emergence in wheat Triticum aestivum
Author(s) -
HUGHES W. G.,
BENNETT M. D.,
BODDEN J. J.,
GALANOPOULOU STELLA
Publication year - 1974
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1974.tb07978.x
Subject(s) - sterility , biology , horticulture , stamen , agronomy , botany , pollen
SUMMARY The induction of male sterility in wheat by application of Ethrel at different concentrations and times was investigated in glasshouse‐grown Triticum aestivum cv. Sirius. The results obtained agree with our previous findings, that to induce full sterility, Ethrel must be applied before meiosis is initiated in the oldest florets of the ear. However, to ensure full emergence of sterilized ears, the application has to be made as close to this stage as possible using a concentration of between 1000 and 2000 ppm. Ethrel application thus shows promise as a method for detecting heterotic combinations by producing sufficient F 1 seed for small‐scale field trials.