KANWAR, H.S.VANDANA2017-03-302017-03-302016http://krishikosh.egranth.ac.in/handle/1/5810006451ABSTRACT The present studies entitled “Studies on seed coating with essential oils and polymer in Pea (Pisum sativum L.)” was carried out using cv. Punjab-89. The experiment was laid out in Randomized block design (factorial) in the field with three replications and Completely Randomized Block design (Factorial) in Laboratory with four replications of each treatment at Department of Seed Science and Tehnology, Dr Y S Parmar University of Horticulture and Forestry, Nauni (Solan). The treatment combinations comprised of five essential oil treatments (E) viz. E0 (control), E1 - (Acorus calamus @ 0.125 ml/kg seed), E2 - (Acorus calamus @ 0.25ml/kg seed), E3 - (Meriandra strobifera @ 0.125 ml/kg seed), E4 - (Meriandra strobifera 0.25 ml/kg seed) and four polymer coatings i.e. P0 (No treatment), P1 (Polymer @ 10 ml/kg seed), P2 (Polymer @ 20ml/kg seed) and P3 (Polymer @ 30ml/kg seed). The observations recorded were days to 50 per cent emergence, days to total emergence, days to 50 per cent flowering, days to pod maturity for seed, plant height at final harvest (cm), pod weight (mg), pod length (cm), number of pods per plant, number of seeds per pod, seed yield per plant (g), seed yield per plot (g), seed yield per hectare (q/ha), 100 seed weight (g), germination (%), seedling length (cm), seedling dry weight (mg), seedling vigour index-length (SVI-length) and seedling vigour index-mass (SVI-mass). These twenty treatments were also kept for storage under ambient conditions and observations were recorded for 1, 3, 6, 9 and 12th months of storage. The observations recorded in laboratory were germination (%), seedling length (cm), seedling dry weight (mg), seedling vigour index length (SVI-I) and seedling vigour index mass (SVI-II) in Pea. Analysis of variance showed significant differences except for pod length and days to total emergence. The combination E2P2 [Acorus calamus (0.25 ml/kg seed) + polymer (20 ml/kg seed)] was found superior over all the treatments in field as well as in storage. Therefore, seed coating with essential oil i.e. Acorus calamus @ 0.25 ml/kg seed along with polymer @ 20 ml/kg seed can be recommended for commercial seed production of Pea.ennullThesis