Seed Health Testing of Recombinant Inbred Lines Derived from Cross between Kalonunia and Pusa Basmati 1637
Pallabi Saha
Department of Seed Science and Technology, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar 736165, West Bengal, India.
Gadge Sushant Sundarrao
Department of Seed Science and Technology, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar 736165, West Bengal, India.
Bidhan Roy *
Department of Seed Science and Technology, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar 736165, West Bengal, India.
Satyajit Hembram
Department of Plant Pathology, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar 736165, West Bengal, India.
P. M. Bhattacharya
Department of Plant Pathology, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar 736165, West Bengal, India.
A. K. Chowdhury
Department of Plant Pathology, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar 736165, West Bengal, India.
Nandita Sahana
Department of Biochemistry, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar 736165, West Bengal, India.
Somnath Mandal
Department of Biochemistry, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar 736165, West Bengal, India.
*Author to whom correspondence should be addressed.
Abstract
Detection of seed born pathogen is important as it disseminates to the next crop using seed as medium. Identification of the hidden pathogen with seed will offer the way to take precautionary measures for seed treatment. Study was carried out to evaluate the seed health, such as germination, pre-emergence death, post-emergence test, infection (%) and presence of different seed-born pathogen of 11 inbred lines developed from a cross between Kalonunia and Pusa Basmati 1637 along with these two parents. Four different genera of pathogens were identified, Aspergillus, Penicillium, Curvularia and Magnaporthe. Aspergillus was predominant and it was found in all the seed lots. As the duration of seed in storage increased the germination reduced. No notable increase or decrease in infection was noted with the duration of seed storage.
Keywords: Seed born pathogen, rice, inbred lines