†National Research Centre for Sorghum, Rajendranagar, Hyderabad, 500030, Andhra Pradesh, India.
$Department of Plant Pathology, 351 Bessey Hall, College of Agriculture, Iowa State University, AmesIowa50011 -1020, USA.
Tamil Nadu Agricultural University, Coimbalore, 641003, Tamil Nadu, India.
*International Crops Research Centre for the Semi-Arid Tropics, ICRISAT, Patancheru, 502324, Andhra Pradesh, India.
Seed transmission of Urdbean leaf crinkle virus was maximum in pods located at the base of the plant rather than pods produced subsequently. There was no relationship between extent of seed transmission and pod position on the plant while considering the individual plants showing infected leaves. The growing-on-test can be effectively ascertained for testing seed-borne infection. The virus was detected only in embryo and cotyledons. Seed lots showing 2.0 to 3.6 per cent seed borne infection recorded 45.2 to 86.5 per cent disease incidence in the post flowering stage in field conditions. The produce from this field yielded 3.6 to 8.6 per cent virus-infected seeds.
Urdbean, Vigna mungo. Urdbean leaf crinkle virus, seed transmission
