Seed Yield and Quality of Late Season Direct Seeded Kenaf ( Hibiscus cannabinus L.) as Influenced by Spacing and Time of De-topping

The Agriculturists Pub Date : 2017-08-04 DOI:10.3329/AGRIC.V15I1.33432

Md. Abul Fazal Mollah, M. Rahman, Md. Tareq, A. B. M. Zahidul Hoque, M. M. Hasan

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Abstract

An experiment was conducted at the Bangladesh Jute Research Institute (BJRI), Regional Station, Kishoreganj during July to December of 2010 and 2011 to investigate the effect of spacing and de-topping on yield and quality of kenaf seeds cv. HC-95 grown under direct seeding method. Three plants spacings (40 cm × 15 cm, 30 cm × 15 cm and 20 cm × 15 cm) and four de-topping treatments (no de-topping, de-topping at 15, 30 and 45 days after emergence (DAE) were applied in a Randomized Complete Block Design (RCBD) with three replications. The highest yield of kenaf seed (1403 and 1646 kgha -1 in 2010 and 2011, respectively) was obtained from sowing at 30 cm × 15 cm spacing. The best quality seed in respect to germination and vigour was also obtained from sowing at 30 cm × 15 cm spacing. The highest seed yield, germination and vigour of seed were obtained for de-topped at 45 days after emergence. It is concluded that the highest seed yield and quality of late season direct seeded kenaf could be obtained by sowing at a spacing of 30 cm x 15 cm and de-topping at 45 days after emergence. The Agriculturists 2017; 15(1) 92-100

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晚季直接播种红麻(Hibiscus cannabinus L.)种子产量和品质受刈割间隔和刈割时间的影响

本试验于2010年7月至2011年12月在孟加拉国黄麻研究所(BJRI) kshoreganj区域站进行，研究了间距和去顶对红麻种子产量和品质的影响。HC-95采用直播法生长。采用随机完全区组设计(RCBD)，采用3个重复，3个株距(40 cm × 15 cm、30 cm × 15 cm和20 cm × 15 cm)和4个去顶处理(不去顶、出苗后15、30和45 d去顶)。红麻种子以30cm × 15cm间距播种，2010年和2011年产量最高，分别为1403和1646 kgha -1。播种间距为30 cm × 15 cm时，种子萌发和活力最好。脱粒后45 d种子产量、发芽率和活力最高。综上所述，以30 cm × 15 cm播种间距、出苗后45 d去顶的方式，可获得最高的晚季直接播种红麻种子产量和品质。农学家2017;15 (1) 92 - 100

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