Abstract
Seeds of 15 hybrid rice varieties viz. Durber, Agomoni, Meghna, Hybrid super, Moyna, Tia, Gold, Aloron, Jagoron, Suborno, Safollo, Hira-1, Hira-2, Hira-4 and Hira-6 were collected from five different seed producing companies of Bangladesh. BAU-Biofungicide (3%), extracts of Garlic (1:1), Allamanda leaf (1:1) Bavistin (0.3%), Thiovit ( 0.3%) and Provax (0.3%) were used for treating seeds to improve quality of hybrid seeds of rice. The moisture content of seed samples ranged 12.20% to 14.37%, where highest moisture content was found in variety Meghna and lowest in variety Moyna. 1000-seed weight of seed samples ranged from 20.00 to 26.00g, where highest weight was recorded in Hira-4 and lowest was recorded both in Aloron and Hira-1. Seed health test revealed 11 different seed borne fungi viz. Bipolaris oryzae (0.0 to 25.5%), Fusarium moniliforme (0.00 to 3.0%), Fusarium oxysporum (0.0 to 18.0%), Aspergillus flavus (0.00 to 11.0%), Aspergillus niger (0.00 to 5.0%), Aspergillus candidus (0.00 to 15.0%), Penicillium spp. (0.0 to 7.0%) , Alternaria padwickii (0.0 to 1%), Alternaria tenuis (0.0 to 11.0%), Curvularia lunata (0.0 to 40.0%) and Nigrospora oryzae (0.0 to 4.0%) . Germination test resulted normal seedlings from 26.00 to 97.00%, where highest was recorded in variety Jagoron that treated with BAU-Biofungicide resulting highest increase in number of normal seedlings by 239.28% over untreated control. BAU-Biofungicide significantly decreased (upto 90.00%) formation of abnormal seedlings over untreated control. Moreover, BAU-Biofungicide increased up to 713.78% Vigor index over untreated control.Asian J. Med. Biol. Res. December 2015, 1(3): 406-415
Highlights
Rice (Oryza sativa L.) is the most important cereal crop and one of the major sources of calories for a large percentage of the world population, in Asia (Datta, 1981)
Study area The experiment pertaining to the present investigation was carried out in the Seed Pathology Centre (SPC), Bangladesh Agricultural University (BAU), Mymensingh; Eco-friendly Plant Disease Management Laboratory and MS Laboratory of the Department of Plant Pathology, BAU, Mymensingh, Bangladesh
Determination of moisture content and 1000-seed weight Moisture content of the collected seed samples were determined with the help of electronic moisture meter before preserving the seed in seed storage at Eco-friendly Plant Disease Management Laboratory, Department of Plant Pathology, BAU, Mymensingh and the moisture content of seed was expressed in percentage
Summary
Rice (Oryza sativa L.) is the most important cereal crop and one of the major sources of calories for a large percentage of the world population, in Asia (Datta, 1981) It alone provides 76% of the total calories and 66% of the protein in a typical Bangladeshi diet of the people (Bhuiyan et al, 2002). Philippines, yield increase due to use of good quality seed was 7-25% (Diaz et al, 2001).The yield of conventional rice varieties is comparatively low and it seems impossible to change this yield with reachable resources under the prevailing situation. Seed borne diseases are very important from the following points of view; (i) introduction of new pathogens (ii) quantitative and qualitative crop losses and (iii) permanent contamination of soil (Ora et al 2011).Among reasons of low yield of rice, diseases pose a major threat to its production (Ou, 1985; Groth et al 1991; Webster, 1992). The present study was conducted to assess quality of hybrid seeds of rice and their improvement by seed treatment
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
