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Response of Micronutrients for Quality Seed Yield in Carrot

M.A. Malek
Department of Horticulture, Patuakhali Science and Technology University, Patuakhali

M.A. Rahim
Department of Horticulture, Bangladesh Agricultural University, Mymensingh

K. Begum
Department of Agriculture Extension, Khamarbari, Farmgate, Dhaka

Abstract/ Executive Summary:

The experiment was carried out at Horticulture Farm, Bangladesh Agricultural University, Mymensingh during rabi season of 2010-2011. Different levels of micronutrients viz. N₁₂₄ P₅₂ K₁₂₀ S_3.6 (T₁), N₁₂₄ P₅₂ K₁₂₀ S_3.6 Zn₃ (T₂), N₁₂₄ P₅₂ K₁₂₀ S_3.6 Zn₃ B₂ (T₃), N₁₂₄ P₅₂ K₁₂₀ S_3.6 Zn₃ B₂ Cu₂ (T₄), N₁₂₄ P₅₂ K₁₂₀ S_3.6 Zn₃ B₂ Cu₂ Mo₂ (T₅), N₁₂₄ P₅₂ K₁₂₀ S_3.6 Zn₃ B₂ Cu₂ Mo₂ Mn₃ (T₆) and N₁₂₄ P₅₂ K₁₂₀ S_3.6 Zn₃ B₂ Cu₂ Mo₂ Mn₃ Fe₂ (T₇) were used to determine their response on yield and quality of carrot seed. Remarkable variations were observed due to different levels of micronutrients on plant height, number of primary and secondary umbels, seed yield plant^-1 and ha^-1, 1000-seed weight, seed germination per cent and seed vigour index. Among the treatments, T5 were the best to influence the yield and quality contributing traits. The micronutrients level N₁₂₄ P₅₂ K₁₂₀ S_3.6 Zn₃ B₂ Cu₂ Mo₂ gave the highest seed yield (1299.58 kg ha^-1) and quality of seed (germination 86.63% and seed vigour index 12.71) which was followed by 1274.49 kg ha^-1 seed yield from micronutrients level of N₁₂₄ P₅₂ K₁₂₀ S_3.6 Zn₃ B₂ Cu₂.

Keywords: Micronutrients, Carrot seed quality, Yield.

Location: Horticulture Farm, Bangladesh Agricultural University, Mymensingh

Start Date: 00-11-2010

End Date: 00-03-2011

Program Area: Crop-Soil-Water Management

Commodity: Carrot

Objectives:

1. To find out the response and proper doses of different micronutrients to maximize the yield and quality of carrot seed

Methodology:

The experiment was carried out during rabi season of 2010-2011 with a view to studying the effect of different levels of micronutrients. The single factor field experiment was laid out in the randomized complete block design with three replications. Eight levels of the following micronutrients consisting of i) T₀ = Control (No fertilizers) ii) T₁ = N₁₂₄ P₅₂ K₁₂₀S_3.6 kg ha-1 (100% NPKS) iii) T₂ = N₁₂₄P₅₂ K₁₂₀S_3.6 Zn₃ kg ha-1 iv) T₃ = N₁₂₄P₅₂K₁₂₀S_3.6Zn₃B₂ kgha^-1 v) T₄ = N₁₂₄P₅₂K₁₂₀S_3.6Zn₃B₂Cu₂kgha^-1 vi) T₅ = N₁₂₄P₅₂K₁₂₀S_3.6Zn₃B₂ Cu₂Mo₂ kgha^-1 vii) T₆ = N₁₂₄P₅₂K₁₂₀S_3.6Zn₃B₂Cu₂M_o2_Mn3 kgha^-1 viii) T₇ = N₁₂₄P₅₂K₁₂₀S_3.6Zn₃B₂Cu₂Mo₂Mn₃Fe₂kgha^-1 were used. The selected land was medium high and the texture of soil was clay loam. The experimental plot was prepared by good tillage. The entire amounts of fertilizers were mixed with the soil as per the design of the experimental plot. Urea and MoP were used in the same plot in three equal installments viz, one as basal dose during plot preparation and another two dose as top dressing at 15 and 40 days after transplanting of steckling. The seed of carrot variety Prima Agroflora was collected from USDA-Alliums’ project, BAU, Mymensingh. All intercultural operations were done as and when needed. Seeds were sown uniformly in rows on 20 October, 2010. When the plants were 75-day old, they were transplanted at main field. The umbels of carrot turned yellow to light gray showing the sign of drying and were ready for harvesting. Data were recorded on plant growth and flowering behavior, yield and quality contributing traits of carrot from five randomly selected plants of each plot. The collected data were statistically analyzed and the mean differences were tested using the Least Significant Difference test taking the probability level 5% as the minimum unit of significance.

Source of Information: J. Agrofor. Environ. 7 (2): 159-162, 2013; ISSN 1995-6983

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Among the treatments, T₅ were the best to influence the yield and quality contributing traits. The micronutrients level N₁₂₄ P₅₂ K₁₂₀ S_3.6Zn₃ B₂ Cu₂ Mo₂ gave the highest seed yield (1299.58 kg ha^-1) and quality of seed (germination 86.63% and seed vigour index 12.71) which was followed by 1274.49 kg ha^-1 seed yield from micronutrients level of N₁₂₄ P₅₂ K₁₂₀ S_3.6 Zn₃ B₂ Cu₂.

Knowledge Management: Journal