Effect of seedling age and date of planting on the growth and yield of photoperiod-sensitive rice [in Bangladesh]
1991
Mannan, M.A. | Siddique, S.B.
An experiment was conducted at the Bangladesh Rice Research Institute (BRRI) farm, Gazipur, in the late transplanted Aman season with four photoperiod-sensitive rice varieties as BR11, BR22, BR23 and Nizersail to determine the effect of seedling age and date of planting on the growth and yield of rice. Thirty, 45-, 60- and 75-day-old seedlings were planted on 30 September. Similarly 45-, 60- and 75- day-old seedlings were planted on 15 October. Most of the varieties produced higher number of tillers, panicles and grain yield when 45- to 60- day-old seedlings were planted in both the planting dates. Higher yield was obtained from BR23 followed by BR22, Nizersail and BR11. Per day yield reduction was higher in BR11 followed by BR22, BR23 and Nizersail for transplanting after 30 September.
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