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Effect of Seedling Types and Hormone Application on Yield of Tomato During Summer

MH Hosain
MS student, Department of Horticulture, Sylhet Agricultural University, Sylhet

MS Islam*
Professor, Department of Horticulture, SAU, Sylhet

MN Uddin
SSO, Olericulture Division, HRC, BARI, Gazipur

DD Nath
Assistant professor, Department of Horticulture, SAU, Sylhe

Abstract/ Executive Summary:

Three types of tomato seedlings viz., polybag raised seedlings (polybag seedling), seedbed raised seedlings (normal seedling) and grafted seedlings (tomato grafted on wild brinjal) of BARI hybrid tomato-4 were evaluated under with and without hormone application system during the summer season of 2014 at the experimental field of Sylhet Agricultural University with view to assessing the influence of grafting and hormone application on tomato yield during summer. Seedling types had significant influence on fruit yield and plant mortality. Only 3.5% plants were infected with bacterial wilt when grown from grafted seedling while it was18% and 20% when the plants raised from normal and polybag grown seedling, respectively. Thus the higher survivability of plants in the grafted plot ensured much higher fruit yield acre-1(18 ton) than those of normal seedling (13.15 ton) and polybag grown seedling (12.80 ton). Application of paracholorophenoxy acetic acid had significant influence on higher tomato production. The plants applied with hormone produced 979.50 g of fruits plant-1while it was only 724.48 g in untreated plant. However, the highest fruit yield plant-1was recorded from the grafted tomato plants (1.06 kg) and normal seedling grown plant (1.08 kg) when treated with hormone while it was the lowest for normal types of seedling at without hormone application (0.59 kg plant^-1). Results revealed that the high scope of improving tomato yield during summer using grafted seedling along with hormone application in Sylhet region.

Keywords: Production, Grafted tomato seedlings, Sylhet region.

Location: Horticulture Department, Sylhet Agricultural University, Sylhet, Bangladesh

Start Date: 00-05-2014

End Date: 00-10-2014

Program Area: Crop-Soil-Water Management

Commodity: Tomato

Objectives:

The experiment was, therefore, undertaken to observe the effect of seedling types and influences of hormone on fruit yield of tomato in summer season.

Methodology:

The experiment was carried out at the experimental field of Horticulture Department, Sylhet Agricultural University, Sylhet, Bangladesh during May to October 2014. The climate of the experimental area is characterized by high temperature, heavy rainfall and high humidity. It belongs to the “Khadimnagar” soil series of Eastern Surma-Kushiara Floodplain under the Agro ecological Zones-20 (FAO, 1988). The pH of the soil is around 4.98, soil organic matter 1.79%. Two factors experiments consists of different seedlings types and hormone application were conducted in a Randomized Complete Block Design (RCBD) with three replications. Varied seedling types were transplanted in the main field on 26 May 2014. All plants were grown with and without hormone application. The unit plot size was 2.4 m × 2.4 m having four rows per bed and 6 plants row-1and 24 plants plot^-1. Plants were transplanted with spacing at 60 cm × 40 cm. The each plots and blocks were separated by 50 cm and 75 cm, respectively. The land was acidic in nature hence, lime (Dolomite) was applied in the field @ 4 kg decimal^-1. Each plot was fertilized with well decomposed cowdung 15 ton, urea 300 kg, TSP 200 kg, MoP 50 kg ha^-1, respectively (Rashid and Singh, 2000). Half of the quantity of cowdung and the entire amount of TSP were applied during final land preparation. The remaining cowdung and half of MoP were applied 5 days before planting. The whole of urea and remained half of MoP were applied in 3 equal splits as top dressing at 15, 30 and 50 days after transplanting. The crop was protected from rain providing polythene tunnel. As per treatment combinations the growth regulator Tomato tone (consisting of paracholorophenoxy acetic acid) at the rate of 2% was sprayed on plants having 4-5 flower clusters at full bloom stage. Plant received three sprays at 5-6 days interval, and only blooming flower clusters were sprayed. Two rows in each plot were kept unsprayed and which were considered as without hormone treated plants. Irrigation, pruning, mulching, weeding and other intercultural operations were done as and when necessary. Data were recorded on yield and yield attributing characters and statistically analyzed using MSTAT-C software.

Source of Information: J. Sylhet Agril. Univ. 5(1):15 -18, 2018 ISSN: 2308-1597

Article Link (Online Journal): www.jsau.com.bd

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

From the above discussion it may concluded that the use of grafted seedling along with application of hormone can ensure successful tomato production during summer season in Sylhet region.

Knowledge Management: Journal