1Department of Seed Science and Technology, Dr YS Parmar University of Horticulture and Forestry, Solan-173 230, Himachal Pradesh, India
2Department of Vegetable Science, Dr YS Parmar University of Horticulture and Forestry, Solan-173 230, Himachal Pradesh, India
3FCIPT Institute for Plasma Research, Gandhinagar-382 044, Gujarat, India
*E mail: ravisehrawat.hau@gmail.com
Online published on 3 April, 2017.
Effect of cold plasma treatment on okra cv P-8 seed germination and seedling vigour were studied. The treatments comprised of two aged seeds, seven seed plasma treatments and four storage durations. Results showed that plasma treatments had positive effects on seed germination and seedling vigour at plasma treatment of 12 min duration on one year old seed stored for 0 months had the highest stimulatory effect. Germination and vigour indices significantly increased by 16.42% and 50.66% respectively. Characteristics of speed of germination, seedling length, seedling dry weight, seedling vigour index-II, significantly increased by 36.18, 30.60, 52.87 and 77.98% respectively, compared with control. It was found that immediately after plasma exposure the germination (91.07%) and vigour (2281.57) were highest and it was reduced to (80.00%) and (1460.74) after 9 months of storage in one year old seed. These results indicated that cold plasma treatment might promote the growth and modify the speed of germination.
Okra, plasma treatment, exposure time and physiological qualities
