D.R. Panthee
Lumle Agriculture Research Centre, P.O. Box 1 , Pokhara, Kaski, Nepal.

DOI

ABSTRACT

Seed dormancy of broad leaf mustard (Brassica juncea var. rugosa) and cress (Lepidium sativum ) was studied at Lumle Centre (1670m asl) during the year 1995/96. Dormancy intensity was very strong in cress (>95%) and broad leaf mustard (94%). Average dormancy period in cress (var. Kathmandu Local) and BLM (var.Marpha Local) was 24 and 38 weeks, respectively. The treatments consisting of potassium nitrate (0.2%) solution plus prechilling for 3 days was effective to break dormancy of cress (var. Kathmandu Local) by which 90% germination was achieved. Prechilling for 5 or 7 days alone or in combination with 0.2% potassium nitrate was effective to break the dormancy of broad leaf mustard (var.Marpha Local) by which germination achieved was about 90%.