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Effect of Seed Size and Spacing on the Yield of Mukhi-kachu (colocasia Esculenta)

Md. Abdul Jalil Bhuyan
Bangladesh Agricultural Research Institute, Joydebpur, Dhaka.

K.R. Haque
Bangladesh Agricultural Research Institute, Joydebpur, Dhaka.

Md. Mofizul Haque
Bangladesh Agricultural Research Institute, Joydebpur, Dhaka.

Abstract/ Executive Summary:

A field experiment was conducted at the Agricultural Research Sub-Station, Pahartali, Chittagong in 1980 to determine the optimum seed-size and spacing for increasing the yield of Mukhi-Kachu. There were two seed-size weighing 11 to 15 g and 16 to 20 g, and nine spacing combinations (40 x 20; 40 x 30; 40 x 40; 60 x 20; 60 x 30, 60 x 40: 80 x 20; 80 x 30 and 80 x 40 cm). The closest plant spacing (40 x 20 cm) coupled with larger seed- size gave highest yield (36.06 tons/ha) of the crop.

Keywords: Mukhi-Kachu, Seed size, Spacing, Yield

Location: Agricultural Research Sub-station, Pahartali, Chittagong

Start Date: 00-04-1980

End Date: 00-12-1980

Program Area: Crop-Soil-Water Management

Commodity: Aroids

Objectives:

To find out the optimum seed-size and spacing for maximizing the yield of Mukhi-Kachu

Methodology:

This study was conducted at the Agricultural Research Sub-station, Pahartali, Chittagong, during April to December 1980. The soil at the experimental plot was sandy loam having pH 5.6 and with good drainage facilities. The seed-cormel of Mukhi-Kachu cultivar used in the experiment was collected from Hathazari, Chittagong. Two seed-sizes consisting of 11 to 15g and 16 to 20g seed weigh and nine spacing treatments indicating row to row and plant to plant distances (40 x 20; 40 x 30; 40 x 40; 60 x 20; 60 x 30, 60 x 40: 80 x 20; 80 x 30 and 80 x 40 cm) were used to conduct this experiment. The experiment was laid out in the split plot design having two replications with the seed-size treatments in the main plots and spacing in the sub plots. The plot was ploughed again and again, each followed by laddering to make a fine tilth. Then 16 t Farmyard manure and 28.8 kg p₂o₅ (from triple superphosphate) per hectare respectively were applied at the time of final land preparation. Urea and muriate of potash at the rate of 40.5 kg N and 96.0 kg K₂O per hectare respectively were top dressed in two equal installments, one at 30 days and the other at 60 days after sprouting of cormel. All intercultural operations such as ridging, weeding, irrigation and insecticide spraying were done as and when necessary. The crop was harvested on 15 December, 1980 when all the leaves of the Plants dried out. Data on plant height and number of leaves per plant (main shoot) taken at 45 days before harvest, number and weight of cormel per hill and yield per plot were taken at the time of harvest and analysed stastistcally.

Source of Information: Bangladesh Horticulture,10(2)Pag:5-8, December 1982

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The closest plant spacing (40 x 20 cm) coupled with larger seed-size gave the highest yield (36.06 t/ha) of the crop and it differed from those produced by all other treatment combinations. It can therefore be suggested that larger seed size (16 to 20g) and closer spacing (40 x 20 cm) should be used for getting higher yield of Mukhi Kachu.

Knowledge Management: Journal