Effects of cutting date and cutting height on subsequent growth and yield of dry direct-seeded rice
2007
Polthanee, A. | Promkhambut, A., Khon Kaen Univ. (Thailand). Dept. of Agronomy
This study sought to investigate the effects of cutting date and cutting height on subsequent growth and yield of dry direct-seeded rice under greenhouse conditions. A factorial combination of three cutting dates at 30,45. and 60 days after seeding, two cutting height at 5 and 10 cm above ground surface and three rice cultivars KDML105, RD15 and RD23 were used in this experiment. Early cutting at 30 days after seeding (DAS) gave the maximum grain yield from the regrowth, but did not show any significant difference with cutting at 45 DAS. The crops, cut at 5 and 10 cm above ground surface, did not show any significant difference on grain yield from the regrowth. KDML105 and RD15 cultivars gave similar grain yield and both cultivars produced a significant greater grain yield than of RD23 cultivar. Grain yield was not dependent on total soluble sugar and starch in the stem at various cutting dates.
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