Performance of double grained rice cultivar under different plant spacing

Research in Agriculture Livestock and Fisheries Pub Date : 2022-01-04 DOI:10.3329/ralf.v8i3.57398

S. Sarkar, S. Paul, S. Chanda, A. Sarwar

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Abstract

Plant spacing ensures uniform and optimum plant population and facilitates sufficient natural resources for crop growth which, in turns influences the crop yield positively. An investigation was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, during July to December 2017 to study the influence of plant spacing on the yield of double grained rice cultivar. The study comprised five spacing viz. 25 cm × 15 cm, 25 cm × 10 cm, 20 cm × 15 cm, 20 cm × 10 cm and 15 cm × 15 cm and two rice cultivars viz. a double grained rice cultivar and BRRI dhan49 and a double grained rice cultivar. It was laid out in a randomized complete block design with three replications. The double grained rice cultivar produced taller plant (155.65 cm), longer panicle (23.93 cm), higher 1000-grain weight (25.96) and higher straw yield (6.90 t ha-1), though the higher grain yield (3.68 t ha-1) was found in the test cultivar (BRRI dhan49). Planting at 20 cm × 15 cm produced the highest grain yield (3.70 t ha-1) which was at par with 25 cm × 15 cm, 25 cm × 10 cm and 20 cm × 10 cm while planting at 15 cm × 15 cm produced the lowest grain yield (3.13 t ha-1). The interaction of the double grained rice cultivar with all spacing combinations produced taller plants than the spacing combinations with BRRI dhan49. The higher grain yield (3.52 t ha-1) was found in the double grained rice cultivar with 20 cm × 10 cm spacing which was at par with the spacing of 20 cm × 15 cm and 25 cm × 15 cm, respectively; although BRRI dhan49 always produced the higher yield. The lowest grain yield (3.08 t ha-1) was recorded at the double grained rice cultivar with 25 cm × 10 cm spacing, however, the same treatment produced the highest biological yield (11.23 t ha-1) due to the highest straw yield (8.15 t ha-1). Hence, the spacing 20 cm × 15 cm might be recommended for the higher grain yield in the double grained rice cultivar Res. Agric., Livest. Fish.8(3): 273-279, December 2021

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不同株距下双粒稻品种的生产性能

植物间距可确保均匀和最佳的植物种群，并为作物生长提供充足的自然资源，从而对作物产量产生积极影响。2017年7月至12月，在孟加拉国农业大学农学田间实验室开展了一项调查，研究了种植间距对双粒稻品种产量的影响。研究采用25 cm × 15 cm、25 cm × 10 cm、20 cm × 15 cm、20 cm × 10 cm和15 cm × 15 cm 5个间距和2个水稻品种，即双粒稻品种和BRRI dhan49和双粒稻品种。采用随机完全区组设计，有3个重复。双粒稻品种株高(155.65 cm)，穗长(23.93 cm)，千粒重(25.96)和秸秆产量(6.90 t hm -1)较高，而试验品种(BRRI dhan49)籽粒产量较高(3.68 t hm -1)。20 cm × 15 cm的产量最高(3.70 t hm -1)，与25 cm × 15 cm、25 cm × 10 cm和20 cm × 10 cm的产量相当，15 cm × 15 cm的产量最低(3.13 t hm -1)。双粒稻品种与所有间距组合的互作均比BRRI dhan49的间距组合植株高。20 cm × 10 cm的双粒稻产量最高(3.52 t hm -1)，与20 cm × 15 cm和25 cm × 15 cm的产量相当;尽管BRRI dhan49的产量总是更高。25 cm × 10 cm双粒稻的产量最低，为3.08 t ha-1，但由于秸秆产量最高(8.15 t ha-1)，其生物产量最高(11.23 t ha-1)。因此，双粒稻品种宜采用20 cm × 15 cm的间距，以获得较高的籽粒产量。,力所能及的。鱼类。8(3):273-279,December 2021

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Research in Agriculture Livestock and Fisheries

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6 weeks