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Regional Yield Trial of Ty Gene Inserted Tomato Lines for Yield and Diseases Resistance (2017 – 2018)

M A Goffar
Horticulture Research Centre, BARI, Joydebpur, Gazipur Bangladesh

G.M.A. Halim
Horticulture Research Centre, BARI, Joydebpur, Gazipur Bangladesh

P. Hanson
Horticulture Research Centre, BARI, Joydebpur, Gazipur Bangladesh

Abstract/ Executive Summary:

A regional yield trial (RYT) of five selected potential tomato lines of AVRDC with check BARI Tomato 15 was conducted at the experimental field of Olericulture Division of Horticulture Research Centre (HRC) and at five regional agricultural research station (RARS) of Bangladesh Agricultural Research Institute (BARI), Gazipur during the winter season of the year of 2017-18 to assess the yield performance, pest and disease reaction and adaptability. The number of fruits per plant varied from 38 to 45. The highest fruit yield (71.62 tones) per hectare was obtained from the entry SL0008. Virus infection was recorded ranged from 2-3%. No bacterial wilt found to infect in the tomato lines studied. The experiment may be repeated for confirming the results.

Keywords: Hybrid tomato variety, Yield, Performance, Diseases,

Location: Olericulture Division of Horticulture Research Centre and at five regional agricultural research station of Bangladesh Agricultural Research Institute, Gazipur, Bangladesh

Start Date: 00-00-2017

End Date: 00-00-2018

Program Area: Variety and Species

Commodity: Tomato

Objectives:

1. To evaluate the yield performance and adaptability of the AVRDC supplied selected potential tomato lines at different agro-ecological zones of Bangladesh;

2. To develop high yielding and diseases resistant tomato variety, which may be used as inbred line to develop hybrid tomato varieties too.

Methodology:

The experiment was carried out at the experimental field of Olericulture Division of HRC and at more five RARS of BARI during winter season of 2017-2018. The selected (selection was made in the year of 2012-2013) AVRDC supplied Ty gene (virus and wilt resistant gene isolated from wild species then inserted to cultivable tomato lines) inserted tomato lines viz.: SL0001, SL0003, SL0008, SL0009 and SL0010 were selected for this study, while BARI Tomato-15 was used as check. The seeds of above mentioned lines were sown on 2^nd week of October, 2017. Thirty days old seedlings were transplanted in the main plot on 2^nd week of November, 2017. The crop was fertilized with cow dung 10 ton, N-253kg (urea- 550kg), P- 90kg (TSP-450kg), K-125 (MoP-250kg), S- 21kg (Gypsum-116kg), Zn-4.9kg (Zinc Sulphate-14kg) and B-2kg (12kg) per ha, respectively. Half of the quantity of cow dung, entire P and half of the K, entire zinc and boron were applied during land preparation. The remaining half of the cow dung was applied during pit preparation. The rest of K and entire N were applied at three equal installments at 15, 30 and 45 days after transplanting. Gap filling, plant protection, irrigation and other intercultural operations were done as and when necessary. Data on yield and yield attributing parameters with qualitative traits were recorded from 20 inner plants of each plot escaping border plants following AVRDC guide line as below: Data on days to first and 50% flowering, plant height at last harvest, days to maturity, number of fruit /plant, average fruit weight, fruit length and diameter, fruit yield /plant, yield/ plot, yield /ha, number of seeds per fruit, shelf life, wilt and percent virus infection (at 45 DAS, 60 DAS and 75 DAS) were recorded. The experiment was laid out in the randomized complete block design (RCBD) with 3 replications. Five treatment combinations were randomly allotted in each block. The size of a unit plot was 4.8m × 1m, and the plant spacing was 60cmx40cm. Each unit plot contained 2 rows of plants (24 plants/ plot). The recorded quantitative data were analyzed statistically by F-test to find out the variation due to different treatments. Analysis of variance (ANOVA) and treatment means were compared by Least Significant Difference (LSD) test following R Software 3.1.2 (Anon., 2015).

Source of Information: Annual Research Report 2017 – 2018, Horticulture Research Centre, BARI, Joydebpur, Gazipur Bangladesh

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Considering the earliness, horticultural traits, pest and diseases reactions and yield potentials in unit area, the experiment may be repeated as regional yield trial (RYT) to confirm the yield, pest and diseases reactions and adaptability at different agro-ecological zones of Bangladesh. Finally, the entry-SL0008 may be suggested for realizing as new tomato varieties while, other entries may be used as breeding materials for further improvement of tomato variety.

Knowledge Management: Report/Proceedings