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Agro-morphological Qualitative Characterization of Jesso-balam Rice (oryza Satival.) Accessions in Bangladesh

Mir Sharf Uddin Ahmed
GRSD, Bangladesh Rice Research Institute, Joydebpur , Gazipur, Bangladesh.

Md. Khairul Bashar
Harvest - Plus, CIAT, Banani, Dhaka - 1213, Bangladesh.

Md. Wazuddin
Faculty of Agriculture, Bangladesh Agricultural University, Mymensingh - 2202, Bangladesh.

AKM Shamsuddin
Faculty of Agriculture, Bangladesh Agricultural University, Mymensingh - 2202, Bangladesh.

Abstract/ Executive Summary:

In this study performed at BRRI, twenty-seven Jesso-Balam rice accessions of Bangladesh were examined for 21 qualitative agro-morphological characters during T. Aman seasons of 2009 and 2011. The presence and shape of penultimate leaf ligule showed no variations among the genotypes. Out of 19 characters, majority of the genotypes showed no anthocyanin color in leaf sheath (93%), medium intensity of anthocyanin color in basal leaf sheath (7%), green leaf blade (74%), strong surface pubescence of penultimate leaf blade (48%), no anthocyanin color in auricles and collar (93%), colorless ligule (93%), white color of stigma (93%), erect blade of flag leaf (52%), erect curvature of lateral tiller (100%), no anthocyanin color in nodes (93%), weak intensity of anthocyanin color in nodes (7%), weak intensity of anthocyanin color in internodes (67%), yellowish to straw anthocyanin color of lemma and palea (48%), medium intensity of anthocyanin color in lemma and palea (41%), yellowish/straw color of apiculus (93%), awnless (89%), awns at tip only (11%), yellowish white to straw color awns (100%) and intermediate type of leaf senescence (74%). On the other hand, the Jesso-Balam germplasm along with BR7, BR16, BRRI dhan50 and Nizersail were grouped into three major clusters according to the UPGMA clustering method based on Dice coefficient. Cluster III was the major group with maximum genotypes (26), while clusters I had two (JBPL₉ and JBPL₂₃) and cluster II had three genotypes (JBPL₁₃, JBPL₁₅ and JBPL₁₆), respectively. The genetic distance ranged from 0.000 to 9.969. Three pairs of accessions (2465 and 2464), (2455 and 2454) and (2453 and 2478) in cluster III were found duplicates. Finally, the Jesso-Balam pure lines possessed exclusive variability and unique features which need safe conservation and sustainable use in future rice breeding programs for issues like intellectual property rights (IPR).

Keywords: Qualitative characters, Jesso - Balam rice, Bangladesh.

Location: Bangladesh Rice Research Institute, Gazipur, Bangladesh

Start Date: 00-00-2009

End Date: 00-00-2011

Program Area: Variety and Species

Commodity: Rice

Objectives:

To study the qualitative agro-morphological characters of 27 Jesso-Balam pure line rice accessions of Bangladesh
To identify and recommend a method for better conservation and use of the rice germplasm .

Methodology:

In total 27 Jesso - Balam pure lines (PL) rice accessions of Bangladesh along with BR7, BR16, BRRI dhan50 and Nizersail were characterized for 21 qualitative agro-morphological traits. Thirty days old single seedling for each accession were transplanted using spacing within and between rows of 20 and 25 cm, respectively during T. Aman of and 2011 seasons at BRRI Gazipur. The lands were medium high and homogenous with respect to soil fertility. The experimental plot was prepared thoroughly by 4 - 5 times deep ploughing and cross ploughing followed by laddering to attain a good puddle situation. The unit plot size was 4 rows of each 2.7 m long . The fertilizers were applied at the rate of 60 - 50 - 40 - 10 kg NPKS ha^-1. The qualitative characters were studied and recorded using “Procedure of DUS tests for inbreed and hybrid Rice” (as approved by National Seed Broad, Ministry of Agriculture in Bangladesh, 2001) and “UPOV Rice Test Guidelines” (sources: TG/16/8; project 3). The states of the characteristics in numerical forms (1 to 9) were given against the state/codes of each characteristic in descriptor. However, the data were also studied by using the Bioversity International, IRRI, WARDA (2006). For analysis, all recorded data were first transformed to binary form. The presence and absence of the different variants scored as 1 and 0, were determined using Power Marker version 3.25 software. Then th e cluster analysis was performed with the NTSYS - pc version 2.2 software. For this, a similarity matrix was determined with the Simqual subprogram using the Dice coefficient, followed by cluster analysis with the SAHN subprogram using the un- weighted pair group method on arithmetic mean (UPGMA) clustering method. Finally, the DCenter of NTSYS - pc was performed for principal coordinate analysis (PCoA) of the similarity matrix data.

Source of Information: International Journal of Agronomy and Agricultural Research (IJAAR) Vol. 8, No. 1, p. 50-58, 2016, ISSN: 2223-7054

Article Link (Online Journal): (Online)http://www.innspub.net

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The Jesso-Balam pure lines possessed exclusive variability and unique features which need safe conservation and sustainable utilization in future rice varieties development for issues like intellectual property rights(IPR). Further, the identified variability and unique features could be selected for developing varieties with unique identification, diverse traits and broaden genetic base. Besides, identified qualitative traits like dark green color leaf, strong pubescence on the surface of the leaf blade or purple margin leaf blade etc. could be utilized for developing rice varieties with tolerant to leaf surface related insects and diseases. Apart from this, molecular characterization of the identified accessions needs to be done for QTL mapping and validating candidate genes responsible for unique traits.

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