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Performance of French Bean (phaseolus Vulgaris L.) Genotypes in Sylhet Region of Bangladesh

M. I. Nazrul*
On-Farm Research Division (OFRD), Bangladesh Agricultural Research Institute), Sylhet, Bangladesh

M. R. Shaheb
On-Farm Research Division (OFRD), Bangladesh Agricultural Research Institute), Sylhet, Bangladesh.

Abstract/ Executive Summary:

An experiment was conducted at farming system research and development (FSRD) site, Jalalpur and multi location testing (MLT) sites, Zokigonj and Moulvibazar during 2013-2015 to evaluate the suitable varieties (genotypes) of French bean for maximize the seed yield of the farmers. The experimental design was a randomized complete block (RCB) with 6 dispersed replications. Eight bush bean genotypes were tested of which 3 were developed by BARI (var. BARI Jharsheem-1, BARI Jharsheem-2, BARI Jharsheem-3), five local accessions: Local-1 (black), Local-2 (white colour with chocolate spot at hylum), Local-3 (coffee colour), Local-4 (coffee colour with few chocolate spots) and Local-5 (black with chocolate colour spots). The seed yields were varied significantly among the genotypes. All the local French bean lines performed better and produced higher seed yields compared to BARI developed varieties. The maximum seed yields 2.66, 3.48 and 2.05 t ha^-1 was produced by Local-4 and Local-5 at Jalalpur, Zakigonj and Moulvibazer, respectively. So, Local-4 and Local-5 variety as the most promising one due their relatively good plant vigor and high seed yield potentiality.

Keywords: Pulse crop. Hill agriculture, Seed yield,

Location: Sylhet and Moulvibazar districts

Start Date: 00-00-2013

End Date: 00-00-2015

Program Area: Variety and Species

Commodity: French bean

Objectives:

The present study was under taken to identify the varietal performance of the local accession as well as BARI developed varieties for Sylhet region.

Methodology:

An on-farm study was conducted on French bean in Sylhet and Moulvibazar districts during 2013-2014 & 2014-2015 under agro ecological zone of AEZ 20 with the objectives were to find out the suitable variety of French bean in respect of seed yield and income of the farmers. The experiments were conducted at farming system research and development (FSRD) site, Jalalpur and multi location testing (MLT) sites, Zokigonj and Moulvibazar locations. The study area lays 24070' N latitude and 91067' E longitude under the Surma-Kusiyara Floodplains in Bangladesh on an altitude of 10 meters. The monthly temperature and rainfall for the experimental sites are indicated in figures 1a-1b and 2a-2b. The climatic data of Moulvibazar and Sylhet districts showed that the average annual minimum temperature is 11.64 and 7.50°C and the average annual maximum temperature is 34.06 and 33.70°C and the annual average temperature nearly 18.62 and 25.25°C, respectively. As indicated in Figure 2a-2b, the rainfall of two different locations is uni-modal, usually occurring during April to October, and total annual rainfall reached to 2354 and 4700 mm; whereas in December no rain at all except in the year of 2014 and lowest amount of rainfall occurs in January followed by February. However, in rest of the months total rainfall was ranged from 100 mm to just below 200 mm. Rainfall increases gradually from the month of May and continued up to September.

The experimental design was a randomized complete block (RCB) with 6 dispersed replications. Seeds were planted at 15 cm in row and 30 cm between rows with 2 seeds per hole. Eight French bean genotypes (Fig. 3) were tested of which 3 were developed by BARI (var. BARI Jharsheem-1, BARI Jharsheem-2, BARI Jharsheem-3), five local accessions Local-1 (black), Local-2 (white colour with chocolate spot at hylum), Local-3 (coffee colour), Local-4 (coffee colour with few chocolate spot) and Local-5 (black with chocolate colour sport). Fertilizers were applied @ 91-21-31-7-1-0 Kg ha^-1 of NPKSZnB in the form of Urea, TSP, MoP, Gypsum, Zinc sulphate and Boric acid, respectively. Cow dung was used as per 5 t ha^-1 during final land preparation. Seeds of French bean were sown on 15-20 November and harvested at maturity on 25-28 February in each year. The trial was manually weeded at three weeks after sowing followed by irrigation, and other irrigations at six weeks after sowing and before harvest. The fungicides Bavistin and Tilt 250EC @ 0.5 ml/L of water were applied for controlling damping off and blight disease, respectively. Data on yield and yield components were analyzed and mean values were separated by LSD test following Gomez and Gomez (1984).

Source of Information: Bangladesh Agron. J. 2016, 19(1): 37-44

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Funding Source:

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Achievement/Findings:

This study showed that French bean genotypes (Local-1, Local-2, Local-3, Local-4, and Local-5) significantly out yielded the varieties developed by BARI. The local lines of French bean are very much popular due to bold seeded and takes less time to boil are utilizing for making pulse curry in Sylhet. Therefore, it could be suggested to the breeder to collect the local materials of French bean and released as variety with management practices. Further research work may be undertaken on varietal development and cultural management.

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