Seed setting and average seed weight as affected by two methods of opening barley flowers for emasculation
1938
Bonnett, O.T.
Barley flowers were opened for emasculation and cross-pollination in two ways, viz., (a) the lemmas and paleas of the flowers were cut off just above the tips of the anthers, and (b) the lemmas were slit. Slitting the lemmas resulted in the production of 21.5% more crossed seed and 10.8% heavier crossed seeds than where the tips of the lemmas and paleas were cut off. Different methods of mutilating barley flowers and permitting them to self-fertilize resulted in differences in the average seed weight. The methods of mutilation and the average seed weights were as follows: Normal flowers (awns left on and glumes normal), 49.13 mg; awns left on, flowering glumes slit, 41.65 mg; awns removed, flowering glumes normal, 40.4 mg; awns removed, flowering glumes clipped to 7 to 8 mm, 32.82 mg; and awns removed, flowering glumes clipped to 4 to 5 mm, 20.85 mg.
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