Quantitative and qualitative evaluation of rice at different threshing delays and piling practices
1985
Balingit, E.G.
Crack and losses of grains greatly occur during wet season compared to dry season because rainfall stress is present on wet season and scarce on dry season. CMU-ACC-80-1-2 should have less percentage crack compared to IR-13240-82-2-3-2-1 when the disease called "neck rot" did not attack the experimental plots. IR-56 had firmer attachment to panicle spikelets because it showed lesser amount of losses, and the rice variety helped minimized shattering loss. IR-13240-82-2-3-2-1 is quite resistant to crack but not resistant to shattering loss. It was observed that samples delayed for 4-8 days of harvest have crack percentage of almost 50%, and samples delayed for 12 days in the field produced a crack of more than 60%. Among varieties, IR-56 gave the highest crack percentage while IR-13240-82-2-3-2-1 gave the least. One major cause of the crack is the delay of threshing and the interaction of hot and cold temperature
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