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Influence of Arbuscular Mycorrhiza and Different Levels of Phosphorus on Yield Attributes, Yield and Micronutrient Contents in Chilli Cv. BARI Morich-1

S. Sultana
Department of Agricultural Chemistry, Bangladesh Agricultural University, Mymensingh-2202

B.K. Saha
Department of Agricultural Chemistry, Bangladesh Agricultural University, Mymensingh-2202

M.A.H. Chowdhury
Department of Agricultural Chemistry, Bangladesh Agricultural University, Mymensingh-2202

M.A.H. Bhuiyan
Department of Agricultural Chemistry, Bangladesh Agricultural University, Mymensingh-2202

Abstract/ Executive Summary:

A pot experiment was conducted to investigate the influence of arbuscular mycorrhiza (AM) and different levels of phosphorus (P) on yield attributes, yield and micronutrient contents and their uptake by chilli. Mycorrhizal inoculation significantly influenced total fruits plant^-1, fresh fruit weight plant^-1, seeds fruit^-1, B, Zn and Cu contents and their uptake except dry fruit weight plant^-1 and fruit volume. Like mycorrhiza, phosphorus fertilization also significantly influenced most of the parameters studied. The highest values of the parameters were obtained from the treatment fertilized with 40 kg P ha^-1 except B in shoot and root which was highest in P₆₀. AM inoculation in combination with 40 kg P ha^-1 produced the highest number of fruit, fresh and dry fruit weight plant^-1, seeds fruit^-1 and micronutrient contents and their uptake. The overall result suggests that mycorrhizal inoculation with 40 kg P ha^-1 can be used for better growth and higher yield of chilli.

Keywords: Arbuscular mycorrhiza, Yield, Micronutrient contents, AM and P interaction

Location: The net house in the BAU, Mymensingh.

Start Date: 00-00-2010

End Date: 00-00-2010

Program Area: Crop-Soil-Water Management

Commodity: Chilli

Objectives:

1. To investigate the influence of arbuscular mycorrhiza (AM) and different levels of phosphorus (P) on yield attributes, yield and micronutrient contents and their uptake by chilli.

Methodology:

he experiments were conducted in the net house in the BAU, Mymensingh. The experiment was laid out in a completely randomized design (CRD) with four replications and ten treatments. The treatment consisted of five P rates i.e. P₀, P₂₀, P₄₀, P₆₀ and P₈₀ with and without AM inoculation. Chilli (Capsicum frutescens L.) cv. BARI morich-1 was used as plant material for the experiment. The inoculum of AM fungi was collected from the trap crop of sorghum as infected root with soil which was preserved in the net house of Soil Science Division of the BARI, Joydebpur, Gazipur. Nitrogen as urea, potassium as muriate of potash, sulphur as gypsum, boron as boric acid and zinc as zinc sulphate were applied according to the Fertilizer Recommendation Guide. Urea was applied in three equal splits. One third amount of urea and full doses of other fertilizers were applied one day before seeds sowing. The rest two thirds of urea were applied at 100 days after sowing (DAS) and 140 DAS respectively. Triple superphosphate was applied as per treatment. Fifty gram inoculum was applied per earthen pot. A layer of AM inoculum was first placed in each pot filled with sun dried soil and was covered with a thin soil layer of 2 cm in which seeds were sown. Twenty seeds of chilli treated with sodium hypochlorite for surface sterilization were sown in each pot. Pots were irrigated upto saturation to allow the soil and inoculums to settle down in the pots. Intercultural operations were done as and when necessary. The harvesting was done by uprooting the whole plants. Ca, Mg contents and their uptake by chilli plant were analyzed following the standard methods. P, K and S contents and their uptake by chilli plants were determined by the stadard methods. Total nitrogen was determined by Semi- Micro Kjeldahl method. Analysis of variance was done with the help of computer package MSTATC and the mean differences of the treatments were adjudged by LSD test.

Source of Information: J. Agrofor. Environ. 4 (2): 41-44, 2010; ISSN 1995-6983

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Mycorrhizal inoculation significantly influenced total fruits plant^-1, fresh fruit weight plant^-1, seeds fruit^-1, B, Zn and Cu contents and their uptake except dry fruit weight plant^-1and fruit volume. Like mycorrhiza, phosphorus fertilization also significantly influenced most of the parameters studied. The highest values of the parameters were obtained from the treatment fertilized with 40 kg P ha^-1 except B in shoot and root which was highest in P₆₀. AM inoculation in combination with 40 kg P ha^-1 produced the highest number of fruit, fresh and dry fruit weight plant^-1, seeds fruit^-1 and micronutrient contents and their uptake. The overall result suggests that mycorrhizal inoculation with 40 kg P ha^-1 can be used for better growth and higher yield of chilli.

Knowledge Management: Journal