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Research Detail

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Md. Zaherul Islam
Bangladesh Wheat and Maize Research Institute, Nashipur, Dinajpur

Md. Shafiqul Islam
Bangladesh Agricultural Research Institute, Gazipur, Bangladesh

Md. Eakramul Haque
Bangladesh Agricultural Research Institute, Gazipur, Bangladesh

Bimal Chandra Kundu
Bangladesh Agricultural Research Institute, Gazipur, Bangladesh

Hae Keun Yun
Horticulture and Life Science, Yeungnam University, Gyeongsan, Republic of Korea.

An experiment was conducted at Breeder Seed Production Centre (BSPC), Bangladesh Agricultural Research Institute (BARI), Debiganj, Panchagarh during cropping seasons to investigate comparative potentiality of five clonal potato hybrids, 4.5 W, 4.15, 4.26 R, 4.27 and 4.40 for releasing as variety in the country. In the investigation two outstanding varieties, Diamant and Cardinal were used as check. All the genotypes under study expressed excellent plant vigour showing above seven score (at 1-10 rating scale). Plant height ranged from 58.73 to 68.20 cm. The highest tuber weight/hill was found at 4.26 R (763.7 g) which was statistically similar to 4.5 W (741.7 g) and 4.40 (670.3 g) while the lowest was found at 4.15 (537.7 g). The highest yield was found from clone 4.40 (29.57 t/ha) at 65 days after planting (DAP) which was statistically similar to all other genotypes except 4.27 (22.44 t/ha). Regarding yield the clones/varieties may be arranged in order to descending as 4.5 W (47.36 t/ha), 4.26 R (46.02 t/ha), 4.40 (44.69 t/ha), Cardinal (40.46 t/ha), 4.27 (40.23 t/ha), Diamant (39.81 t/ha) and 4.15 (35.83 t/ha). Among them clone 4.5 W and 4.26 R gave significant higher yield than Diamant and Cardinal. Therefore, these two genotypes could be selected for variety for Bangladesh condition with further trails in other parts of the country.

  Potato,Clonal genotype, Yield
  Breeder Seed Production Centre, Bangladesh Agricultural Research Institute (BARI), Debiganj, Panchagarh
  00-00-2010
  00-00-2011
  Variety and Species
  Amaranth

The study was undertaken for selection of suitable variety(s) for commercial cultivation.

An experiment was conducted at Breeder Seed Production Centre, Bangladesh Agricultural Research Institute(BARI), Debiganj, Panchagarh during 2010-11 to test the potentiality of five clonal potato hybrids with two check outstanding varieties Diamant and Cardinal. The clones were 4.5 W, 4.15, 4.26 R, 4.27 and 4.40. The experiment was laid out in randomized complete block design with three replications. The unit plot size was 3m x3m, maintaining 60cm x25cm spacing between two rows and from tuber to tuber. Well sprouted whole tubers of all varieties and lines were used as planting material. The doses of manures and fertilizers viz. Cow dung 10 t/ha, Urea 350 kg/ha, Triple super phosphate (TSP)250 kg/ha, MP 275 kg/ha, Gypsum 120 kg/ha, Magnesium sulphate, Zinc sulphate 10 kg/ha and boric acid 5 kg/ha were applied in the field. Cow dung, half of the dose of Urea, TSP, Murate of potash (MOP), Gypsum, Magnesium sulphate, Zinc sulphate and Boric acid were used as basal. The remaining half of the dose of Urea was applied during earthing up. Seed tubers were planted on 22 November 2010. Weeding was done by manually as and when necessary to keep the plots free from weeds. For easy aeration and to conservation of soil moisture, the soil was mulched by breaking the crust. First irrigation was done after 30 days after planting and subsequently 3 irrigations were done at 20 days interval after first application. Two times earthing up were done during the crop growing period. The first earthing up was done at 30 DAP along with urea and second one after 45 DAP. Percent emergence was measured by recording the emergence of tubers at 30 DAP out of 60 tubers planted and converting it to percentage. The height of the plant sample was measured in centimeter from the ground level to the tip of the longest shoot. Percent foliage coverage was recorded by eye observation at 60 days after planting. Plant vigor was also measured by eye estimation. It was scored up to 8. Higher the vigor higher was the score. Number of stem/hill was recorded at 60 days after planting. Number of tuber/hill, tuber weight/hill was taken during final harvest. Yield data were recorded two times, one at 65 and another at 90 days after planting. Yield data was taken from the whole plot. The severity of devastating disease called late blight caused by Phytophthora infestans was recorded when it showed up in the plot after planting following 1-9 rating scale according to Henfling (1979) by selecting 10 plants randomly from each unit plot. To control late blight of potato contact and systemic fungicide were used at 7 days interval until harvest the crop. Percentages of disease reaction on stem canker, potato leaf roll virus, potato mosaic virus were also observed at 60 days after planting. The data obtained for yield contributing character and yield were statistically analyzed to find out the significance of differences among the treatments. The mean values of all the characters were evaluated and analysis of variance was performed by MSTAT software package (Gomez and Gomez, 1984). The significance of the differences among pairs of treatment means was calculated by Duncan multiple range test (DMRT).

  J. Biosci. Agric. Res. 20(01): 1658-1663
  https://doi.org/10.18801/jbar.200119.201
Funding Source:
1.   Budget:  
  

From the results of the present research, it can be concluded that the performance of 4.5 W and 4.26 R clonal potato genotypes are better in respect of phenology, yield and yield contributing characters and disease reaction. Therefore, based on overall performances, two clonal potato genotypes 4.5 W and 4.26 R performed better as compared to check variety Diamant and Cardinal. Further studies are suggested in other growing regions of the country.

  Journal
  


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