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Growth and Bulb Development of Garlic as Influenced by Time of Planting

N.U.Ahmed
Department of Horticulture,Bangabandhu Sheikh Mujibur Rahman Agricultural University Salna, Gazipur-1703 , Bangladesh

M.A. Quadir
Department of Horticulture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Salna, Gazipur-1703 , Bangladesh

Abstract/ Executive Summary:

An experiment was conducted to study the effect of four planting dates from 1 November to 31 December on the growth and bulbing of garlic (Allium sativum L.) under short day condition of Bangladesh. Planting dates had significant effect on emergence , crop growth , crop duration and bulb yield. Higher fresh bulb weight (FBW) in November plantings (November 01 and November 21) was due to higher dry matter (OM) production, greater plant height,leaf number, leaf area,and bulb diameter at different stages of crop growth. Plantings during November 1 and 21 were found to be more favourable by availing longer cooler climate for plant growth and bulb development. In delayed plantings (December 11 and December 31), crop growth and bulbing were adversely affected by prevailing higher temperatures .The cultivar 'Rajshahi' showed superiority over 'Faridpuri' as evaluated through various morphological, phenological and yield characteristics of garlic.

Keywords: Garlic cultivar, Planting date, Phenological development

Location: Department of Horticulture, Bangabandhu Sheikh Mujibur Rahman Agricultural University Salna, Gazipur-1703 , Bangladesh

Start Date: 01-11-1993

End Date: 31-12-1993

Program Area: Crop-Soil-Water Management

Commodity: Garlic

Objectives:

To analyze the various morphological, phonological and yield characteristics of two garlic cultivars in response to various planting dates under field environment.

Methodology:

The investigation was carried out during the winter season of 1993-94 at the Bangabandhu Sheikh Mujibur Rahman Agricultural University farm, Salna, Gazipur, Bangladesh under irrigated condition. It is located at 240.0/ N latitude and 900.25/ E longitude at an elevation of 8.40 meters under agro-ecological zone (AEZ) 28 The soil of the exprimental field was loam to clayloam. Two local cultivars of garlic viz., Faridpur and Rajshahi were included in this study. The experiment was laid out tn a split plot design with four replications. The main plot treatment composed of two garlic cultivars : V₁ = Faridpuri and V₂ = Rajshahi. The sub-plot treatment consisted of four dates of planting viz., P₁ = November 01, P₂ =November 21, P₃ = December 11 and P4 = December 31. The sizes of each main and sub-plot were 12.6m x 6.4m and 6.3m x 1.6m, respectively. The healthy cloves of garlic cultivars planted at a distance between rows and hills was 20 x 9cm. The crop received cowdung @ 5 t/ha and 100-60- 100-20 kg of NPKS/ha, respectively. The entire amount of cowdung, P, K, Sand half of N was thoroughly mixed with the soil before planting. The rest of N was topdressed at the time of second mulching 30 days after planting (DAP). Hand weeding and earthing up was done 4 to 8 times during crop period. The crop was irrigated at an interval of 10-15 days depending upon the weather conditions

Source of Information: Ann . Bangladesh Agric. 10 (1): 19-27, 2000

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

It may be suggested that in Bangladesh, garlic should be planted by third week of November using cv. Rajshahi (V2) for better growth and bulbing as well for higher bulb yields.

Knowledge Management: Journal