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Effects of Pre-planting Top and Root Pruning, and Pre-harvest Foliage Bending on the Yield of Onion

Gazi Jasimuddin
Department of Agronomy, Bangladesh Agricultural University, Mymensingh.

S. M. Altaf Hoaasin
Department of Agronomy, Bangladesh Agricultural University, Mymensingh.

Abstract/ Executive Summary:

Pre- planting root pruning treatment did not have any significant effect on the yield of onion cv. Local Red. High level of pre-planting top pruning treatments had a significant detrimental effect on the yield of bulb. Pre-harvest foliage bending had no effect on yield.

Keywords: Pre-planting top and rootin pruning, Pre-harvest foliage bendling, Yield, Onion

Location: Agronomy Field Laboratory of the Bangladesh Agricultural University, Mymensingh.

Start Date: 00-11-1978

End Date: 00-04-1979

Program Area: Crop-Soil-Water Management

Commodity: Onion

Objectives:

To find out the effects of pre-planting top and root pruning, and pre-harvest foliage bending on the yield of onion.

Methodology:

The experiment was conducted at the Agronomy Field Laboratory of the Bangladesh Agricultural University, Mymensingh during the period from November 1978 to April 1979. The experiment consisted of (A) two levels of pre-harvest foliage bending (i, no bending 9 days before harvest and ii. no bending), (B) four levels of pre-planting top pruning (i. 75% pruning, ii, 50% pruning, iii. 25% pruning and iv. no pruning) and (C) three levels of pre-planting root pruning (i. 100% pruning, ii. 50% pruning and iii. no pruning). The top and root pruning's of the seedlings were done at the time of transplanting. The Experiment was laid out in the split-plot design with three replications by placing foliage bending in the main plot and pre-planting top and root pruning in combination in the subplot. The size of unit plot was 4.5 m x 3 m. Eight week old seedlings were transplanted on 15 January, 1979 giving a 20 cm x 10 cm spacing. Intercultural operations were done uniformly in all the treatments. Pre-harvest foliage bending operation was done with the help of a ladder nine days before harvest. The crop was harvested on 24 April, 1979.

Source of Information: Bangladesh Horticulture, 10(1):43-45, June 1982

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

High level of pre-planting top pruning treatments had a significant detrimental effect on the yield of bulb. Pre-harvest foliage bending had no effect on yield.

Knowledge Management: Journal