ABSTRACT

Thirty-seven accessions of deshi jute germplasm collected from different sources were evaluated at Jute Research Regional Station, Kishoregonj during kharif season of 2016. The accessions were characterized for eight morpho-agronomic attributes as per Corchorus descriptor in order to select superior genotypes of jute. Considerable ranges of variability were observed in plant technical height, base diameter, node number, dry fiber weight and dry stick weight. The highest dry fiber weight was observed in accession 4986 (17.65 g/plant) followed by variety CVL-1 (16.64 g/plant), accessions 4460 (17.54 g/plant), 4484 (17.45 g/plant), 69 (13.62 g/plant) 75 (13.53 g/plant) and 67 (12.16 g/plant). From two years evaluation it was revealed that the twelve accessions viz. 4986, 4460, 4484, 58, 67, 69, 73, 84, 3936, 4474, 4706 and 4995 were performed better in most of the cases than the control variety CVL-1. These accessions may be used as the tools for varietal development program of deshi jute. Key words: Deshi jute, evaluation, germplasm.

Introduction
Jute an herbaceous annual plant from the Tiliaceae family, mostly grown in Southeast Asian countries (José et al., 2009). It is used in the manufacture of a number of fabrics such as hessian cloth, sacking, scrim, carpet backing cloth (CBC), and canvas. It is also used as a raw material for the production of paper and pulp (IJO, 1994). Jute plays a very important role in Bangladesh economy as the country earns about 1213% of total foreign currency by exporting jute and jute product (BJRI, 1998). Bangladesh, the second largest producer of jute, produces the best quality jute in the world and leads the export market (Rayhan et al., 2008). In addition, this crop is particularly important in Bangladesh where many small families depend on the income from growing and selling jute (Ghosh et al., 2013). Jute covered 6.95% of the total cultivated area occupying 0.5 million hectares and producing 0.96 million metric tons of jute fiber (AIS, 2003). In Bangladesh, the number of recommended jute varieties is limited in terms of fulfilling the requirements of wide agro-ecological conditions. Most of these varieties are quite old and have narrow genetic base and susceptible to various biotic and abiotic stresses such as insects, pests, diseases, drought, water logging, and low temperature and so on. All these factors combined with the increasing demand of jute in the world market, the new types of jute need to be developed to meet the various Agro-Industrial needs. In order to increase the frequency of desired genotypes in breeding progenies, superior parents with high breeding values are needed. However, the development of such parents is a long term and tedious job. Variability and genetic diversity are the fundamental laws of plant breeding which are major tools being used in parent selection for efficient breeding programme. For this region, firstly need to identify and evaluate promising and superior germplasms. The Gene Bank of Bangladesh Jute Research Institute (BJRI) has been conserved about 6023 germplasms of jute, kenaf, mesta and allied fiber of both indigenous and exotic origin. Out of this 2400 germplasms are Corchorus capsularis. Already about 443 germplasms are characterized as per Corchorus descriptor. Thirty-seven selected accessions of deshi jute (Corchorus capsularis) germplasms received from different sources to evaluate the superior germplasms for varietal development programme.