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Varietal Screening of Cabbage (brassica Oleracea Var. Capitata L.) in Coastal Area of Bangladesh

Israt Jahan Eva
Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh.

Belayet Hossain
Department of Horticulture, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh.

G. M. Mohsin
Department of Agriculture, Noakhali Science and Technology University, Noakhali-3814, Bangladesh.

Abstract/ Executive Summary:

An experiment was carried out at Nabagram Farmhouse, Mannannagar, Noakhali, Bangladesh during the period from September 2018 to January 2019 to screen out different cabbage varieties in coastal areas of Bangladesh. The experiment was laid out Randomized Complete Block Design (RCBD) with three replications. Three varieties viz., V₁= Atlas-70, V₂=Summer warrior, and one is red cabbage, V₃= Ruby king was selected for screening out. Data were collected on seedlings height at transplanting stage, plant height, number of leaves/seedlings, number of leaves/plant, leaf length and diameter, days to head formation, days to head harvesting, head diameter, the average weight of the head, yield/plot and yield (ton/ha). Maximum parameters have significantly differed among the varieties except for seedlings' height, leaf length, and leaf diameter. The highest seedlings height (13.15 cm) were found from V₂ (Summer warrior) whereas the highest plant height (30.51 cm) was notified from V₃ (Ruby king). Summer warrior (V₂) gave a maximum number of leaves/seedlings (4.8), leaves/plant (15.97), leaf diameter (19.67 cm), early head formation (46.10 days), head diameter (21.29 cm) average weight of the head (1.14 kg), yield/plot (28.97 kg) and yield/ha (54.63 ton). On the other hand, the highest leaf length (21.41 cm) was recorded from V₃ (Ruby king) and minimum head harvesting days, as well as duration, were recorded from Atlas-70 (V₁). The lowest seedlings height (10.98 cm) was found from V₃ (Ruby king) as well as the lowest plant height (24.57 cm) obtained from Atlas-70 (V₁). The lowest number of leaves/seedlings (2.67), number of loose leaves/plant (13.74), average head weight (0.64 kg), yield/plot (15.93 kg), and yield/ha (30.67 ton), as well as highest days required to head formation (56.78 days) and harvesting (141.38 days ), were noted from V₃ (Ruby king) Considering the results it can be concluded that Summer warrior cabbage variety was found to be statistically superior to the rest of the varieties in terms of maximum growth and yield contributing characters.

Keywords: Screening, Varietal, Cabbage, Coastal area, Bangladesh

Location: Nabagram Farmhouse, Mannannagar, Noakhali, Bangladesh

Start Date: 00-09-2018

End Date: 00-01-2019

Program Area: Variety and Species

Commodity: Cabbage

Objectives:

To evaluate the yield and growth characteristics of three commercial cabbage varieties in order to determine the best suited to growing conditions within the Noakhali (slightly alkaline condition).

Methodology:

The present research was conducted at Nabagram Farmhouse, Mannannagar, Noakhali, Bangladesh during the period from September 2018 to January 2019 to screen out different cabbage varieties in the coastal area of Bangladesh. The experiment was laid out under the AEZ 18 i.e. Young Meghna Estuarine Floodplain. This region occupies young alluvial land adjoining the Meghna estuary. The soil of the experimental site was slightly alkaline pH 8.3 and EC 1.32dS/m. The soil was tested by Soil Resource Development Institute, Noakhali. The experiment is carried out Randomized Complete Block Design with three replications. Three varieties viz., V₁= Atlas-70, V₂= Summer warrior, and purple once V₃=Ruby king was used. The total number of plots was 9. Seed sowing was done on 22^nd September 2018 in the seedbed. Before seed sowing, seed treatment with Carbendazim 50 WP. The land was ploughed to fine tilth properly. Seedlings were uprooted carefully from the seedbed. The unit plot size was 5.28 meters square. The distance between the blocks was 1 m and that between plots was 50 cm. 30 days old healthy seedlings are transplanted on 30 October maintaining spacing 45 cm × 60 cm (plant to plant and row to row) at the rate of one seedling per hill. 24 plants are planted in each plot. Immediately after transplanting, light watering to the individual seedlings was provided to overcome the water deficit. After the establishment of the seedlings, watering was done as and when necessary. Ten tones of cow dung, 250 kg of urea, 150 kg of TSP, and 250 kg of MP per hectare were applied in the experimental plot. The entire amount of cow dung and TSP and half of MP was applied during the final land preparation. The entire urea and rest of MP were applied in three equal installments at 15, 30, and 50 days after transplanting in the field by ring method. Weeding and mulching were done to keep the plots free from weeds, easy aeration of the soil and to conserve soil moisture, which ultimately ensured better growth and development. The continuous observation was done to ensure better growth of plants for good yield. The insect invasion was not severe. Diseases infestation was not too severe to cause damage to the crop. The data were collected from the 8 plants except for yield/plot from each plot in different stages of crop growth for obtaining various growth and yield parameters were discussed. The recorded data of different parameters in this study were analyzed statistically by using MSTAT-C and Microsoft office Excel 2013 to find out the significant or non-significant within treatments and means were compared at 5% probability level (Gomez and Gomez, 1984).

Source of Information: International Journal of Natural and Social Sciences, 2020, 7(2): 70-76

Article Link (Online Journal): DOI: 10.5281/zenodo.4007472

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Results stated that the performance of the Summer warrior variety was better than other varieties in terms of seedlings height, number of leaves/seedlings, number of loose leaves/plant, leaf diameter, early head formation, the diameter of the head, head weight, yield/plot and yield/ha in compared with others varieties whereas Ruby king gave highest plant height at 50 days after transplanting and early harvesting as well as lowest duration was found from Atlas- 70. Considering the results it can be concluded that the Summer warrior variety showed better results compared to other varieties in coastal areas where the soil was slightly alkaline in terms of growth and yield contributing characters.

Knowledge Management: Journal