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Effect of Presprouting of Seeds on Field Duration of Short and Long Duration Potato Varieties in Haor Ecosystem

M. M. Karim
LIFCHASA project, Department of Agronomy, BAU

S. M. A. Hossain
LIFCHASA project, Department of Agronomy, BAU

B. C. Das
LIFCHASA project, Department of Agronomy, BAU

M. S. U. Bhuiya
Department of Agronomy Bangladesh Agricultural University, Mymensingh

Abstract/ Executive Summary:

A field experiment was conducted at the farmers’ field of Livelihood Improvement of Farming Community in Haor Area through System Approach Project site Purbo Tethulia, Mohangonj, Netrakona during the Rabi Season of 2011-2012 to shorten the field duration of potato through seed pre-sprouting technique and to find out the suitable potato variety for cultivation in Dingaputa haor area without affecting the cultivation period of boro rice. Diamont and one local variety Challisha were taken for the study. Pre-sprouting duration of Diamont was 10, 20, 30 and 40 days with un-sprouted Diamont and Challisha. In the study unsprouted Diamont produced significantly the highest yield (25.28 tha-1) followed by 20.01, 13.46, 13.31, 12.74 and 11.54 tha-1 of 10, 20, 30, 40 days pre-spouted Diamont and un-sprouted Challisha, respectively. The lowest field duration of the crop was 41 days of 30 and 40 days pre-spouted Diamont. The highest gross margin of Tk.165960 ha-1 was observed from the unsprouted Diamont potato against the variable cost of Tk.137400 ha-1 incurred. The performance of Challisha was also appreciated by the farmers for its quality and low cost of production. Unsprouted Diamont potato also ranked the top most position in terms of benefit cost ratio of 2.21.

Keywords: Diamont, Challisha, Presprouting, Field duration, Yield, Gross Margin, Gross Return

Location: Purbo Tethulia, Mohangonj, Netrakona

Start Date: 00-00-2011

End Date: 00-00-2012

Program Area: Crop-Soil-Water Management

Commodity: Potato

Objectives:

1. To shorten the field duration of potato through seed pre-sprouting technique and to find out the suitable potato variety for cultivation in Dingaputa haor area without affecting the cultivation period of boro rice.

Methodology:

A field experiment was carried out at the farmers’ field of Livelihood Improvement of Farming Community in Haor Area through System Approach Project site Purbo Tethulia, Mohangonj, Netrakona during the Rabi Season of 2011-2012 to shorten the field duration of potato through seed presprouting technique and to find out the suitable potato variety for cultivation in Dingaputa haor area without affecting the cultivation period of boro rice. The experiment site belongs to the AEZ # 21 having high organic matter content (2.27%) and low pH (5.61). The experiment was set up following randomized complete block design with three replications. Diamont and one local variety Challisha were taken for the study. Presprouting duration of Diamont was 10, 20, 30 and 40 days with one unsprouted Diamont and Challisha. Seeds of potato cv. Challisha were collected from local market of Kaltapara, Gouripur, Mymensingh and Diamont from BADC. Diamont potato seeds were set for sprouting in four different dates viz., 25 September, 5 October, 15 October and 25 October 2011 in polybags (15.24cm × 10.16cm) filled with equal mixture of well decomposed compost and soil. Land was prepared during the end of October 2011. Fertilizers were applied at the rates of 276, 185, 276 and 15, 10 kg ha-1 as urea, TSP, MoP, zinc sulphate and boric acid, respectively. Total TSP, MoP, zinc sulphate, boric acid and a half of the urea were applied during the final land preparation and the rest half of urea was top dressed at 30 days after seed sowing. Diamont seeds with having pre-sprouting ages of 40, 30, 20, 10 days were planted in four plots and unsprouted Diamont and Challisha seeds were sown in two plots on 4 November 2011. Spacing of 60cm × 25cm for Diamont and 30cm × 10cm for Challisha was maintained. The unit plot size was 4m × 2.5m. Irrigation and weeding were done as and when necessary. To control late blight, Ridomil gold was applied @ 1kgha-1 and Durseban for cutworm @ 7.50 ml ha-1. Harvesting was done from 22 December, 2011 to 12 January 2012. Plot-wise yield was recorded and finally converted to t ha-1.

Source of Information: J. Environ. Sci. & Natural Resources, 5(2): 205 - 207, 2012; ISSN 1999-7361

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Farmers showed their keen interest in potato cultivation in boro rice field prior to boro rice transplanting and especially on pre-sprouting technique of potato seed for early maturity for Diamont and quality and low cost of production for Challisha.

Knowledge Management: Journal