M.Basnet, S.M. Shakya, S.M. Shresthya and K. Mishra
Manoj  Basnet, Assistant  Professor, Institute of Agriculture and Animal Science, TU
Dr. Shanta Man Shakya, Professor, Institute of Agriculture and Animal Science, TU
Dr. Sundar Man Shrestha, Professor, Institute of Agriculture and Animal Science, TU
Mrs. Kalyani Mishra, Associate Professor, Agriculture and Forestry University
Corresponding author: manojbasnet99@gmail.com
Received on: 5-5-2017, revised on: 28-8-2017, accepted on: 30-8-2017
 

DOI

ABSTRACT
 
A study was conducted at the farmers' field of Sukranagar, Chitwan to assess the qualitative characters of onion seeds produced by using different nitrogen levels and different sized off season bulbs of var. 'Bemausami-1' (N-8293) during 2009/10. Five levels of nitrogen (0, 40, 80, 120 and 160 kg Nha) as main plot factor and three bulb sizes (<1, 1-3 and >3 cm diameter) as sub plot factor were laid out in a split plot design with three replications. Germination (72%), 1000 seed weight (5.49gm), viability (88.8%), and vigor index (299.2) were significantly higher at 160kg Nha. Likewise, germination (70.6%), 1000 seed weight (4.9gm), viability (86.17), and vigor index (289.5) were higher in the seeds produced from bigger sized bulbs. The lowest germination percentage, 1000 seed weight, viability and seedling length were exhibited by the seeds produced at 0 kg Nha and from the bulb sized<1 cm diameter. The qualitative parameters of onion seeds were found to be superior at 160kg Nha and 3 cm bulb size.