Response of growth and yield of some short growth season genotypes for transplanting spacing's rice
ANBAR JOURNAL OF AGRICULTURAL SCIENCES,
2017, Volume 15, Issue 0, Pages 187-198
AbstractA field trial was carried out at Mishap Rice Research Station of Office Agric. Res. During 2012 and 2013 to investigate of spacing in growth and productivity of promise short duration rice genotypes at late planting. Randomized Complete Block Design in split plot arrangement with three replicates was used. Genotypes (32, 35 and 36) occupied main plots while spacing 10x20, 15x20, 20x20 and 25x20 cm occupied sub plots. Statistical analysis revealed that decreasing transplanting spacing from 25×20 to 10×20 cm showed significant increasing in sterility percentage, number of panicles m-2 and paddy yield in both seasons, while harvest index at first season, number of grains panicle-1 and biological yield was at second season. However biological yield attained significant increment when decreased spacing from 20×20 cm to 10×20 cm at first season . Genotype 32 attained higher paddy yield due to higher panicle and grain number at both seasons, however it gave high biological yield at first season. The interaction between spacing and genotypes was significant for all studied characteristics. The genotypes 32 under spacing 10x20 cm was gave higher paddy yield (4.933 and 4.760 t.ha-1 for first and second seasons respectively) Therefore can be recommend to adopt these genotypes at 10x20 cm to obtain higher paddy yield at late transplanting.
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