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Effect of Tps Seedling Tuber Spacing on Growth and Yield Performance of Potato

M.H.K. Kamal
Assistant professor
Dept. of Agronomy & Agricultural Extension, University of Rajshahi, Rajshahi-6205

M.M. Rahman
Agricultural Extension Officer
Dept. of Agricultural Extension (DAE), Ministry of Agriculture, GOB

M.A. Rahman
Assistant professor
Dept. of Agronomy & Agricultural Extension, University of Rajshahi, Rajshahi-6205

M.M. Hossain
Assistant professor
Dept. of Agronomy & Agricultural Extension, University of Rajshahi, Rajshahi-6205

Abstract/ Executive Summary:

A yield performance trial was carried out with TPS seedling tuber of a hybrid variety (HPS-11/67) at the farmers' field of Bonkishor village, Charghat Upazila of Rajshahi district to investigate the effects of three plant spacing on the growth and yield of potato (luring December, 2005 to March, 2006. The plant spacing viz. 60 cm x 10 cm, 60 cm x 15 cm and 60 cm x 20 cm were used in this experiment at Ganges Flood plain AEZ under sub-tropical climate. Results indicate that the plant vigor and foliage coverage were found significantly higher on wider spacing (60 cm x 20 cm) at the early stage of plant growth. The number of tubers per hill and yield of tubers per hectare increased in wider spacing (60 cm x 20 cm). Closer spacing (60 cm x10 cm) with smaller seeds produced higher number of small tubers than wider spacing.

Keywords: TPS seedling, Tuber spacing, Growth, Yield.

Location: Bonkishor village, Charghat Upazila of Rajshahi district

Start Date: 00-12-2005

End Date: 00-03-2006

Program Area: Crop-Soil-Water Management

Commodity: Potato

Objectives:

The number of tubers per hill and yield of tubers per hectare increased when larger seedling tubers and closer spacing were used (Islam, 1992). Only a few studies have been done dealing with the plant spacing on growth and yield of potato under Bangladesh conditions and the results are not conclusive. The present investigation was, therefore, undertaken to find out the appropriate plant spacing to get economic benefits.

Methodology:

The experiment was conducted at the farmers' field of Bonkishor village, under Charghat Upazila of Rajshahi district during December 2005 to March 2006. The selected plot was medium high land with silty loam under the Ganges Flood Plain (AEZ No. 11). The TPS seedling tubers (HPS-II/67) of Indian origin supplied by the Bangladesh Agricultural Development Corporation (BADC) were used as plant material, which was a hybrid of the female parents MF-II and male parents TPS-67. Three different plant spacing (60 cm x 10 cm, 60 cm x 15 cm and 60 cm x 20 cm) were used as the treatments. The experiment was laid out in the randomized complete block design with three replications, each having three treatments (different plant spacing). Thus the total no of unit plots were (3 x 3 = 9). The size of a unit plot was 2.4 x 2.4 m2. The spacing for replication to replication was 80 cm and plot to plot was 60 cm. The plots were fertilized with Urea, TSP, MP, Zinc Sulphate and Borax 201.6 g, 129.6 g, 164.2 g, 14.4 g and 5.8 g in each .plot, respectively. The half of the urea and rest of all other fertilizers were applied into fertilizer furrows at 10 cm distance from both side of furrows at the time of planting. The rest half of urea was applied as top dressing after 35 days of planting (DAP). Decomposed cowdung manure was also applied at the rate of 20 tons/ha at the time of land preparation. Furataf-5G @ 10 kg per hectare was applied in soils at the time of final land preparation to protect the crop from soil borne insects.

Source of Information: South Asian J. Agric.. 3005.3 ( I &:21: 33-36 ISSN 1991-0037

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The closest spacing (60 cm x10 cm) produced the higher proportion of small tubers by number due to higher number of plants per unit area. On the other hand, the wide spacing (60 cm x20 cm) produced the higher proportion of large tubers by weight.

Knowledge Management: Journal