Influence of Manure and Plant Spacing on Growth and Yield of Dioscorea deltoidea Wall: an Endangered Species

1. Scientist, CSIR Institute of Himalayan Bioresource Technology (IHBT), Palampur, H.P. –176061, India [E-mail: gc57@rediffmail.com; Tele: +01894-233339 ext.312, Fax: +91-1894-230433] 2. Scientist, IHBT, Palampur, H.P., India [E-mail: rdsingh@ihbt.res.in; Tele: +01894-233339 ext.316] 3. Technical officer, IHBT, Palampur, H.P., India [E-mail: meenaihbt@yahoo.com; Tele: +01894-233339 ext.312] 4. Scientist IHBT, Palampur, H.P., India [E-mail: Vkaul2002@yahoo.co.in; Tele: +01894-233339 ext.386] 5. Scientist, IHBT, Palampur, H.P, India [E-mail: bikramsingh@ihbt.res.in; Tele: +01894-230426]