1989 Volume 33 Issue 2 Pages 81-87
Grain shedding habit at harvest time of 397 Bangladesh deepwater rice varieties was measured with an unbounded gauge type transducer (UT: 1 kg) . More than a half of the varieties showed very easily shedding habit, and those showing hardly shedding habit were very few. Morphological observation revealed that all the Bangladesh deepwater rice varieties possess the abscission layer between pedicel and spikelet. The parenchymatous cells in the abscission layer seemed to crack by maturity time in most of the varieties belonging to the highly and moderate shedding types, while they did not crack in the varieties of hardly shedding type. No association was observed between the grain shedding habit and elongation ability.
