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Effect of Season and Population Density on Growth, Fodder Production and Yield of Baby Corn

Md. Abdul Aziz
PSO
Agronomy Division, Gazipur

Farida Begum
PSO
Agronomy Division, Gazipur

Abstract/ Executive Summary:

To understand the physiological reasons for variation in growth, fodder production and yield of baby corn at three seasons with four different spacing, an experiment was conducted with pacific 423 at BARI, Joydebpur, Gazipur. Significantly the highest husked cob yield was obtained from 45cm x 20cm spacing which was identical with 40cm x 20cm spacing in all the three seasons autumn, winter and summer. The highest fodder yield was recorded from 35cm x 20cm spacing in all the three seasons. The length, diameter, weight of cob and cob yield, harvest index (HI), growth period, and physiological parameters like LAI, LAD and TDM was higher in winter grown baby corn than that of autumn and summer crop. CGR, RGR and NAR were more during summer. It might be concluded that winter season followed by autumn season with 40cm x 20cm spacing would be suitable for maximum growth, fodder production and yield of baby corn.

Keywords: Season, Population density, Growth, Fodder production, Yield, Baby corn

Location: Joydebpur, Gazipur

Start Date: 00-09-2007

End Date: 00-05-2008

Program Area: Crop-Soil-Water Management

Commodity: Maize

Objectives:

To understand the influence of seasons on growth, fodder production and yield of baby corn in terms of physiological parameters and their relationship in seasons.

Methodology:

The experiment was conducted at BARI of Joydebpur during the period from September 2007 to May 2008 in three different season’s autumn, winter and summer. The trial was laid out in a RCB design with five replications. Four different spacing viz. 50cm x 20 cm, 45cm x 30cm, 40 cm x20 cm and 35cm x 20cm were included in the experiment. Fertilizers @ of 120-60-40-20, N-P₂0₅-K₂0-S kg /ha were applied. One third of N and all other fertilizers were applied as basal and the remaining 2/3rd N was applied in two equal splits at 25 and 45 DAE (days after emergence). The baby corn variety Pacific 423 was sown in 3 September 2007 (autumn), 28 November 2007 (winter) and 11 March 2008 (summer) with assured moisture of the soil. Harvesting was done at flowering stage. The data on physiological parameters were taken from five selected plants from each plot at 20 days interval up to silking (harvesting) stage. The growth parameters were estimated during the silking stage. Meteorological data was collected daily at the experimental site during the crop growth period. The data were pooled and statistically analyzed following “MSTAT” program and the critical differences were used to compare the means at P=0.05.

Source of Information: Annual Report, Agronomy Division 2007-2008, BARI

Article Link (Online Journal):

Funding Source:

1. Asian Development Bank

Budget: 15,000/-

Total Budget (Tk.) : 15,000/-

Achievement/Findings:

It might be concluded that winter season followed by autumn season with 40cm x 20cm spacing would be suitable for maximum growth, fodder production and yield of baby corn with maximum benefit cost ratio.

Knowledge Management: Report/Proceedings