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Contribution of Boron Doses on Growth and Yield of Different Broccoli Genotypes

M. Islam
Scientific Officer
Hill Agricultural Research Station, Raikhali, Rangamati Hill District, Bangladesh

M. A. Hoque
Associate Professor
Bangabandhu Sheikh Mujibur Rahman Agricultural University

M. M. Reza
Assistant Director
Bangladesh Agricultural Development Corporation

M. M. Rahman
MS Student
Agroforestry and Environment, Bangabandhu Sheikh Mujibur Rahman Agricultural University

Abstract/ Executive Summary:

A field experiment comprising of four broccoli genotypes (G₁= Premium Crop, G₂= Early Green, G₃= Green Calabrese and G₄= Late Calabrese) with four different levels of boron (L₁= control or without boron, L₂= 1 kg/ha, L₃= 2 kg/ha and L₄= 3 kg/ha) was conducted at the experimental field of Department of Horticulture, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur during the winter Rabi season of 2012-13. Early Green performed the best regarding head diameter (19.04 cm), yield per plant (681.1 g) and total yield (27.24 t/ha). There was a significant and positive effect of boron application on the yield of broccoli. Control (without boron) treatment required highest days (48.92) for curd initiation but minimum days (61.75) for curd harvest. But L₃= 2 kg/ha treatment showed the opposite result. Result of maximum parameter revealed that, 2.0 kg B/ha was found to be an optimum rate. The genotype Early Green yielded the highest (32.19 t/ha) when boron was applied @ 2 kg/ha.

Keywords: Broccoli, Boron, Yield

Location: Horticultural Research Farm of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur

Start Date: 00-10-2012

End Date: 00-02-2013

Program Area: Crop-Soil-Water Management

Commodity: Broccoli

Objectives:

To identify high yielding genotype(s) of broccoli for growing in our country
To find out the optimum dose of boron for increasing yield and quality of broccoli

Methodology:

The experiment was carried out at the Horticultural Research Farm of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur from October, 2012 to February, 2013. The experimental site was located at the center of Madhupur Tract (24^o09' N latitude and 90^o26' E longitudes at 8.5 meter above the sea level) belongs to AEZ 28. The initial soil analysis results were shown. The experiment was factorialand had 16 treatment combinations, a randomized complete block design with three replications. The treatment consisted of four broccoli genotypes, viz., G₁= Premium Crop, G₂= Early Green, G₃= Green Calabrese and G₄= Late Calabrese with four level of boron, viz., L₁= control (boron nil), L₂= 1 kg/ha, L₃= 2 kg/ha and L₄= 3 kg/ha that were applied to the soil as Solubor (20% B). Plot dimension was 2.0 m x 1.5 m and plant spacing was 50 cm x 50 cm. Manure and fertilizers were applied to the soil @ 15 tons well rotten cowdung, 210 kg urea, 120 kg TSP, 100 kg MP and 1 kg Molybdenum per hectare. The full amounts of cowdung, TSP, MP and molybdenum were applied during final land preparation, while the urea was applied in two equal installments at 15 and 30 days after transplanting. Treatment wise boron was applied during final land preparation. The seeds were sown in seed bed on 02 October, 2012. Because of heavy rainfall and unfavorable condition of the main field, forty days old healthy seedlings were transplanted in the experimental field on 11 November, 2012 in the afternoon. Harvesting was started on 7 January 2013 and 50% harvest was completed on 21 January 2013. The data on leaves per plant, days to curd initiation, days to curd harvest, main curd diameter, secondary curd per plant, main curd weight, secondary curd weight, yield per plant and total yield were recorded from randomly selected five plants in each plot. All data were analyzed statistically with MSTATC and means were separated by Duncan’s Multiple Ranges Test (DMRT) at 5% level of probability for interpretation of result.

Source of Information: Int. J. Sustain. Crop Prod. 10(2):14-20, 2015

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Genotype Premium Crop performed the best regarding short term crop variety of broccoli but Early Green yielded maximum among the four experimented genotype but Green Calabrese and Late Calabrese are not suitable for cultivation regarding low yield. Optimum rate of boron for broccoli cultivation was found as 2.0 kg B/ha for all the treatment.

Knowledge Management: Journal