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Adaptibility of Tomato Genotypes Suitable for Coastal Region of Patuakhali in Bangladesh

MN Hasan
Department of Agricultural Botany, Patuakhali Science and Technology University, Dumki, Patuakhali 8602, Bangladesh

MM Hasan
Department of Agricultural Botany, Patuakhali Science and Technology University, Dumki, Patuakhali 8602, Bangladesh

MZ Haque
Department of Agricultural Botany, Patuakhali Science and Technology University, Dumki, Patuakhali 8602, Bangladesh

MHK Howlader
Department of Agricultural Botany, Patuakhali Science and Technology University, Dumki, Patuakhali, Bangladesh

UK Shanta
Department of Agricultural Botany, Patuakhali Science and Technology University, Dumki, Patuakhali, Bangladesh

Abstract/ Executive Summary:

A field experiment was carried out at the Regional Horticultural Research Station, Lebukhali, Patuakhali, during the winter. The experiment was conducted to find out adaptive tomato genotypes suitable for coastal Patuakhali region considering their growth and yield performance. The genotypes of this experiment showed significant influence independently on different parameters of tomato plant. The maximum plant height (86.80 cm) was found in BARI tomato-3. The maximum primary (2.55), secondary (9.55) and tertiary branch (4.48) were obtained from BARI tomato-14. The maximum number of leaves (34.93) obtained from BARI tomato-14. The highest length of largest leaves (35.87 mm) was recorded in BARI tomato-3. The maximum number of flower clusters plant^-1 (19.47), number of flowers cluster^-1 (6.62), number of fruit cluster^-1 (4.84), number of flowers plant^-1 (126.3), number of fruits plant^-1 (88.0), minimum date for 50% flowering(53.33), highest percentage of fruit setting (76.27), minimum days to first harvest (101.7) were obtained from BARI tomato-14. Moreover, BARI tomato-14 also performed better in respect of yield (3.51 kg/plant and 124.8 t/ha). It may therefore concluded that the genotype BARI tomato-14 showed better growth and yield performance under the coastal condition and suitable for Patuakhali region.

Keywords: Tomato, Genotypes, Coastal region, Growth, Yield

Location: Research field of Regional Horticulture Research Station (RHRS), Lebukhali, Patuakhali

Start Date:

End Date:

Program Area: Variety and Species

Commodity: Tomato

Objectives:

To investigate the productivity and variations of growth, development and yield of tomato genotypes grown under the coastal condition of Patuakhali region.

Methodology:

A field experiment was conducted at the Research field of Regional Horticulture Research Station (RHRS), Lebukhali, Patuakhali during the winter. The research farm is located at 22⁰ 37' N latitude and 89⁰ 10' E longitudes. The area is situated on Ganges Tidal Floodplains and falls under Agro-ecological Zone “AEZ– 13”. The area lies at 0.9 to 2.1 meter above mean sea level (Iftekhar and Islam, 2004). The soil of the experimental field was siltycaly loam having pH value of 6.8. The organic carbon content (0.93%) found low in most cases. Deficiency of nitrogen is acute and widespread. Status of exchangeable potassium is almost satisfactory. Eight tomato genotypes (LE-009, TLB-130, VRT-005, VRT-007, BARI tomato-3, BARI tomato-8, BARI tomato-14, and BARI tomato-15)were used in this experiment. The seeds of tomato genotypes were collected from Bangladesh Agricultural Research Institute (BARI), Joydebpur, Gazipur. The experiment was laid out in a Randomized Completely Block Design (RCBD) with three replications. Each replication consists of 24 plants with the spacing of 60 cm x 40 cm (Razzaket al., 2000). Seedlings were raised in separate seed beds under special cares. Manures and fertilizers were applied according to the recommendation guide (BARI, 2004). Total amount of well decomposed cow dung and TSP were applied during the final land preparation. Urea and MoP were applied as top dressing in two equal installments. Healthy seedlings of 30 days aged of uniform size were transplanted to the experimental plots during afternoon. Various intercultural operations were accomplished for better growth and development of the plants, which includes – irrigation, weeding, gap filling, staking, and management. During foggy weather preventive measure against disease was taken by spraying Diathane M-45 fortnightly @ 2 g L^-1 of water, at the early vegetative stage. Fruits were harvested during early ripening stage when they become slightly red in color. Number of fruits harvested from five tagged plants at each picking (harvest) were counted and total number of fruits per plant was calculated. Randomly selected five plants were used for recording different morphological data (plant height) at 15 days interval starting from 15 DAT to 75 DAT and yield parameters (days to 50% flowering, % fruit sets, days to harvest, number of cluster plant^-1, flower cluster^-1, flower plant^-1, fruits cluster^-1, fruits plant^-1, length and diameter of fruit, pericarp thickness, fruit weight) were recorded during harvest. Plant height was measured by using centimeter scale and was expressed in cm.The total number of clusters in individual plant was counted to calculate number of cluster per plant. Total number of flowers was divided by the total number of clusters to get flower numbers per cluster. The total number of flowers in each plant was counted to get flower number per plant. The days required for the blooming of flowering at least 50% flower was counted as 50% flowering days. Total number of fruits of each plant was divided by the total number of clusters and the mean value of fruit per cluster was calculated. The total number of fruits in each plant was counted to get fruit number per plant. Total number of fruits of each plant was divided by the total number of flowers and the value is multiply with 100 to count percent of fruit setting. The days required for first harvesting of fruit of a plant was counted as days of first harvest. The pericarp of fruit was measured as the outer side to fleshy part (mesocarp) in cm with a centimeter scale. The length of fruit was measured as the vertical distance from one side to another of the sectioned fruit in cm. The diameter of fruit was measured with a centimeter scale as the horizontal distance from one side to another of the sectioned fruits. Five fruits were randomly selected from each plant, weighed and averaged to get individual fruit weight which was expressed in gram. Thus total weight was calculated to get fruit weight per plant and expressed in kilogram. The total weight of fruits harvested from sample plant and each picking was added and average yield per plant was calculated and expressed in kilogram per plant. Later the yield per hectare was calculated and expressed as tons per hectare. The collected data were analyzed statistically to obtain the level of significance following the analysis of variance (ANOVA). The mean differences were compared by Duncan’s Multiple Range Test at 5% level of probability using the statistical computer package program, MSTAT-C (Russell, 1986).

Source of Information: Progressive Agriculture 28 (2): 84-91, 2017

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Achievement/Findings:

Considering the results of the experiments, BARI tomato-14 possessed the features of moderately plant height, number of cluster per plant, flower per cluster, percent fruit setting, fruit per cluster, number of fruit per plant, fruit weight per plant, while it takes lower days for 50 % flowering and providing higher yield. Hence, it could be concluded that, BARI tomato-14 is found suitable and adaptive in coastal condition of Patuakhali region.

Knowledge Management: Journal