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Performance of Sweet Potato Varieties in Hilly Areas

Bulbul Ahmed
SO
Agronomy Division, Gazipur

A. Biswas
SO
ARS, Ramgarh, Khagrachari

Abstract/ Executive Summary:

The experiment was conducted at research field of Hill Tract Agricultural Research Station. Ramgarh, Khagrachari during rabi season of 2012-13. Five different sweet potato varieties (BARI Sp-6, BARI Sp-7, BARI Sp-8, BARI Sp-9 and local cultivar) were included in the experiment. The highest yield of tuber (14.07 t/ha) was recorded from BARI Sp-7 followed by BARI Sp-6 (13.56 t/ ha). The highest yield increase over local cultivar was recorded from BARI Sp-7 (53.02 %) and the lowest yield increase over local cultivar was recorded from BARI Sp-9 (43.89 %).

Keywords: Performance, Sweet potato, Hilly areas

Location: ARS, Ramgarh, Khagrachari

Start Date: 16-11-2012

End Date: 15-04-2013

Program Area: Crop-Soil-Water Management

Commodity: Sweet potato

Objectives:

To increase production of sweet potato by introducing HYV variety (ies) in the hilly region.

Methodology:

The experiment was conducted at research field of Hill Tract Agricultural Research Station. Ramgarh, Khagrachari during rabi season of 2012-13. The soil of this hill area belongs to AEZ 29 and the soil bears acidity. Five different sweet potato varieties (BARI Sp-6, BARI Sp-7, BARI Sp-8, BARI Sp-9 and local cultivar) were included in the experiment. The trial was laid out in a randomized complete block design with four (dispersed) replications. The unit plot size was 4.2 m?3 m. Vine of sweet potatoes (BARI Sp -6, BARI Sp -7, BARI Sp -8, BARI Sp -9 and local cultivar) were planted on 16th November, 2012 according to treatment with the spacing of 60 cm x 30 cm. The experimental plot was prepared and labeled properly. Lime was also applied to minimize the acidity effect in hilly areas. Fertilizers at the rate of 70-25-95 kg/ha of N P K in the form of urea, triple super phosphate (TSP) and muriate of potash (MoP), respectively along with 10 ton cowdung. The full amount of cowdung and TSP and 1/4 MoP, and ¼ Urea were applied as basal during final land preparation. The remaining of urea and MoP were side dressed at 60 days after planting. Weeding, irrigation and insecticides spraying were done as when required to maintain an optimum growth condition for the crop. It was harvested after 150 DAS when the vines were turned to dry as brown color. Number of tuber/plant, individual tuber weight, and yield of tuber/hectare was recorded. The collected data were analyzed statistically and means were separated using LSD test at 5% level of significance.

Source of Information: Annual Research Report, Agronomy Division 2012-2013, BARI

Article Link (Online Journal):

Funding Source:

1. Asian Development Bank

Budget: 20,000/-

Total Budget (Tk.) : 20,000/-

Achievement/Findings:

The highest yield of tuber (14.07 t/ha) was recorded from BARI Sp-7 followed by BARI Sp-6 (13.56 t/ ha). The highest yield increase over local cultivar was recorded from BARI Sp-7 (53.02 %) and the lowest yield increase over local cultivar was recorded from BARI Sp-9 (43.89 %). BARI SP-7 and BARI SP-6 are suitable sweet potato varieties for cultivation in hill region of Bangladesh.

Knowledge Management: Report/Proceedings