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Research Detail

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R. R. Saha
SSO
Agronomy Division, BARI, Gazipur

F. Begum
PSO
Agronomy Division, BARI, Gazipur

The experiment was carried out at BARI, Joydebpur, Gazipur to evaluate the seed quality of BARI hybrid maize-5 in determining seed vigour, stand establishment, growth and yield. Treatments were consisted of different sources of seeds of BARI hybrid maize 5 which were produced from ten different sowing dates (monthly interval from December/06 to November/07 except June and July). Among the treatments, seeds which were produced from October to December sowing showed higher germination (>90%) and lower seed leachate conductivity. Whereas seeds from May and August sowing showed lower germination (<80%) and higher seed leachate conductivity. Seeds produced from September to December sowing showed longer root shoot length and higher vigour index. Thus, seeds from September to December sowing had the potentiality to emerge in the field (>80%) which showed nearly optimum plant population (6.18-6.55 plants/m2). Plant height and dry matter partitioning in stem, leaf, cob and tassel showed similar trend among the treatment but crop growth rate found slightly higher in plants grown from the seeds that produced from September to December sowing. Yield components were differed insignificantly among the treatments but grain yield varied significantly. The highest grain yield (8.8 t/ha) obtained from seeds produced from December/06 sowing which was at par with that of seeds produced from September, October and November sowing. From this study it revealed that quality seeds of BARI hybrid maize 5 could be produced from September to December sowing.

  Sowing dates, Field performance, Seed quality, Maize
  Joydebpur, Gazipur
  00-00-2008
  00-00-2009
  Seed Technology
  Maize

To evaluate the seed quality of BARI hybrid maize-5 in determining seed vigour, stand establishment, growth and yield.

The experiment was conducted at the research field of Agronomy Division, BARI, Joydebpur, Gazipur during rabi season of 2008-09. The experiment was laid out in a RCB design with three replications. Seed quality parameters in terms of germination (%), seed leachate conductivity, root-shoot length and vigour index were tested in laboratory prior to sowing. Seed vigour index was calculated following Joyraj and Karivaratharaju (1992). The experimental plots were fertilized @ 250-50-100-40-5 kg/ha of N P K S Zn in the form of urea, triple super phosphate, muriate of potash, gypsum and zinc sulphate. Half of urea and all other fertilizers were applied as basal. The rest of urea was applied in two equal split at 40 and 70 days after sowing (DAS). Experimental field was irrigated following post sowing, 49, 72, 94 and 108 DAS, respectively. Weeding and earthing up were done at 27 and 40 DAS, respectively. For crop growth analysis, five plants were collected from each plots at every 30 days interval. Different plant parts were partitioned and oven dried then weighed. Crop was harvested on 19 April, 2009. At maturity, yield components were collected from 10 randomly selected plants in each plot. Collected data were analyzed statistically.

  Annual Report, Agronomy Division 2008-2009
  
Funding Source:
1.  Asian Development Bank Budget:  15,000/-
   15,000/-

Quality seeds of BARI hybrid maize 5 would be obtained from September to December sowing which is influenced by plant population, crop growth rate and grain yield.

  Report/Proceedings
  

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