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Growth and Yield of Different Size-seedling Tubers Derived from True Potato (solanum Tuberosum L.) Seeds as Influenced by Clump Planting

R. N. Rojoni
Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh

T. S. Roy
Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh

M. D. Sarkar
Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh

A. Ullah
Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh

Abstract/ Executive Summary:

An experiment was conducted at the Horticulture farm of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during November 2010 to March 2011. Four levels of seedling tuber size, viz. 6-<7 g (S₁), 7-<8 g (S₂), 8-<9 g (S₃) and, 9-≤10 g (S₄) and three levels of seedling tuber, viz. 1 hill^-1 (N₁), 2 hill^-1 (N₂) and 3 hill^-1 (N3) were laid out in a Randomized Complete Block Design with three replications. At harvest, the tallest plant (82.17 cm), highest number of leaves plant^-1 (83.30), highest LAI (6.23), tubers weight hil^l-1 (128.90 g) and tuber yield ha^-1 (25.78 t) were found in S₄, while the lowest was in S₁. On the other hand, the tallest plant (74.91 cm), highest number of leaves plant^-1 (74.45), highest LAI (5.41), tubers weight hill^-1 (123.95 g) and tuber yield ha^-1 (24.79 t) were found in N₃, while the lowest was in N₁. The tallest plant (85.09 cm), highest number of leaves plant^-1 (87.97), highest LAI (6.64), tubers weight hill^-1 (138.35 g) and tuber yield ha^-1 (27.67 t) were found in S₄N₃ and the lowest gross tuber yield ha^-1(12.83 t) was from S₁N₁. Large seedling tuber with single seedling tuber hill^-1 performed better.

Keywords: Seedling tuber, Clump planting, Morphological features, Potato yield. Ture potato seed

Location: Horticulture farm of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh

Start Date: 00-11-2010

End Date: 00-03-2011

Program Area: Variety and Species

Commodity: Potato

Objectives:

To study the growth and yield performance and develop a feasible standard method for utilization of TPS seedling tubers.

Methodology:

The experiment was conducted at the Horticulture Farm of Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh during November 2010 to March 2011.Soil of the experimental field was a silty loam in texture under AEZ Madhupur Tract. 2.3. Treatments and design of the experiment The experiment consisted of two factors viz., seedling tuber size and clump planting. Clump planting is the technique of planting of more than one tuber hill^-1and the plant hill^-1 counting as single plant. Factor A: Four levels of seedling tuber size, viz. 6-<7 g (S₁), 7-<8 g (S₂), 8-<9 g (S₃) and, 9-≤10 g (S₄) and three levels of seedling tuber, viz. 1 hill^-1 (N₁), 2 hill^-1 (N₂) and 3 hill^-1 (N₃) were tested in this study. The experiment was laid out in a Randomized Complete Block Design with three replications. The total area of the experimental plot was divided into three equal blocks. Each block was divided into 12 plots and there were 36 unit plots altogether. The size of the each plot was 1 m × 1 m. The distances between rows was 50 cm and between plants was 10 cm. The field was opened in the 2nd week of November 2010 with a power tiller and left exposed to the sun for a week. The fertilizers were applied at 300, 220, 250, 100, 25, 15 and 10000 kgha^-1 as urea, TSP, MP, gypsum, Zinc sulphate, boric acid and cowdung, respectively. Fifty percent of urea and full amount of other fertilizers were applied during final land preparation. Moreover, Carbofuran 5G @ 15 kg ha^-1 was also applied during that time.The tubers were graded according to the size and kept under diffuse light conditions to have healthy and good sprouts. Planting was done on November 28, 2010.Intercultural operations like weeding, earthing-up, irrigation were furnished for proper growth and development of the crop. Dithane M-45 was sprayed in two installment at an interval of 15 days from 50 DAP as preventive measure against late blight disease. Data were analyzed with the help of MSTAT-C Program and mean values of all the parameters were adjudged by least significance difference (LSD) at 5% level of probability.

Source of Information: The Agriculturists 12(1): 111-121(2014) ISSN 2304-7321 (Online), ISSN 1729-5211 (Print), A Scientific Journal of Krishi Foundation

Article Link (Online Journal): http://banglajol.info/index.php/AGRIC/article/view/19866/13730

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The morphological features such as days to first and 80% emergence, plant height, number of leaves plant^-1, leaf area index (LAI), fresh mass production plant^-1, total dry mass (TDM) plant^-1,TDM m^-2and crop growth rate (CGR) were significantly influenced by seedling tuber size and clump planting. Tuber weight hill^-1 and gross tuber yield were influenced significantly by seedling tuber size and clump planting. Use of True Potato Seed seedling tuber with single number of tuber hill^-1 was found feasible for potato production.

Knowledge Management: Journal