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Effect of Plant Spacing on the Growth and Yield of Black Cumin

M. Shaheenuzzamn
SO
Agronomy Division, BARI, Gazipur

S.N. Mahfuza
SO
Physiology Division, BARI, Gazipur

Abstract/ Executive Summary:

A field experiment on black cumin with various plant spacing was conducted at the Agronomy field of BARI, Joydebpur, Gazipur during the rabi season of 2013-2014. Six plant spacing, viz. 30 cm x10 cm, 25 cm x10 cm, 20 cm x10 cm, 15 cm x10 cm, 25 cm x 5 cm and 20 cm x 5 cm were tested to find out optimum plant spacing of black cumin for getting higher yield. Higher LAI was observed with 20 cm x 5 cm spacing which led to higher dry matter production as well as higher seed yield. LAI, dry matter and grain yield decreased with increasing plant spacing. The highest seed yield (1.00 t/ha) was recorded with 20 cm x 5 cm spacing while the lowest seed yield (0.417 t/ha) was recorded with 30 cm x10 cm spacing. The results revealed that 20 cm x 5 cm might be optimum for getting higher seed yield of black cumin.

Keywords: Spacing, Growth and yield , Black cumin

Location: Joydebpur, Gazipur

Start Date: 00-00-2013

End Date: 00-00-2014

Program Area: Crop-Soil-Water Management

Commodity: Black cumin

Objectives:

To find out appropriate plant spacing for getting higher seed yield of black cumin.

Methodology:

The experiment was conducted at the research field of Agronomy division BARI, Joydebpur, Gazipur during the rabi season of 20013-2014. The soil belongs to the Chhiata series under Agro-Ecological zone 28. The soil was clay loam and slightly acidic in nature (P^H 6.1). Six plant spacing 30 cm x 10 cm (33 plants/m²), 25 cm x10 cm (40 plants/m²), 20 cm x10 cm (50 plants/m²), 15 cm x 10 cm (66 plants/m²), 25 cm x 5 cm (80 plants/m²) and 20 cm x 5 cm (100 plants/m²) were used as treatment. The unit plot size was 4m x 3m. The experiment was laid out in randomized complete design with three replications. Fertilizers were applied at the rate of 100-30-45-20 2-1 kg/ha N, P, K,S, Zn and B in the form of urea, triple super phosphate (TSP), muriate of potash (MoP), gypsum and boric acid. All fertilizers and 1/3 of urea were applied during final land preparation and the remaining 2/3 urea was applied in two equal split at 25 and 50 DAS. Appropriate agronomic management practices and proper plant protection measures were taken as and when required during the crop growing period. Three plants per plot were sampled at 85 DAS for measurement of leaf area and dry matter. Leaf area was measured with an automatic area meter (LI3100 C, LI-COR, USA). The leaves and other plant parts were dried in an oven at 80^oC for 72 hours and dry weight was recorded. Black cumin was harvested on 12 April 2014. The yield component data were collected from 10 randomly selected plants prior to harvest from each plot. Yield data was recorded plot wise.Collected data were analyzed statistically and the means were adjudged by LSD test with 5 % level of significance.

Source of Information: Annual Research Report 2013-2014, Agronomy Division, BARI, Gazipur.

Article Link (Online Journal):

Funding Source:

1. Government

Budget: 20,000/-

Total Budget (Tk.) : 20,000/-

Achievement/Findings:

The result revealed that with the increase of plant population, LAI was increased which intercepted more radiation, produce higher TDM ultimately produced higher grain yield. So it may be concluded that 20 cm x 5 cm (100 plant/m²) was optimum plant spacing for the higher production of black cumin.

Knowledge Management: Report/Proceedings