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The promotion of ear emergence by gibberellic acid in Ethrel‐induced male sterile wheat
Author(s) -
HUGHES W. G.,
BODDEN J. J.,
GALANOPOULOU STELLA
Publication year - 1976
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.1744-7348.1976.tb00566.x
Subject(s) - biology , gibberellic acid , sterility , horticulture , botany , germination
SUMMARY Ethrel at a concentration of 2000 ppm active ingredient (a.L), applied to the spring wheat cv. Sirius before meiosis was initiated in the oldest florets of the ears, induced almost complete male sterility but prevented full ear emergence. Concentrations of 100, 200 and 300 ppm a.i. GA 3 , applied 2 or 5 days after the Ethrel, were equally effective in promoting full emergence of sterilized ears, without affecting female fertility or markedly affecting flowering time.