Seed Morphometry and Different Pre-sowing Treatments on Seed Germination of Spondias pinnata Linn. under Nursery Condition
Amarendra Nath Dey
Department of Forestry, Uttar Banga Krishi Viswavidyalaya Pundibari, Cooch Behar, West Bengal-736165, India.
Bani Sharma
Department of Forestry, Uttar Banga Krishi Viswavidyalaya Pundibari, Cooch Behar, West Bengal-736165, India.
Anjali Kumari
Department of Forestry, Uttar Banga Krishi Viswavidyalaya Pundibari, Cooch Behar, West Bengal-736165, India.
Sharda Dubey
Department of Forestry, Wildlife and Environmental Sciences, Guru Ghasidas Vishwavidyalaya, Bilaspur, Chhattisgarh-495009, India.
Mihir Ranjan Panda *
Pandit Deen Dayal Upadhyay College of Horticulture and Forestry, Dr. Rajendra Prasad Central Agricultural University, Pusa, Bihar-848125, India.
*Author to whom correspondence should be addressed.
Abstract
The present investigation was carried out during 2018–19 to evaluate the variation in seed dimension and most promising seed pre-treatments for accelerating germination of Spondias pinnata Linn. The various pre-sowing treatments were the Control (no treatment); soaking in cold water for 24 hours; soaking in cold water for 48 h; soaking in cold water for 72 h; soaking in 100 ppm thiourea for 24 h; soaking in 200 ppm thiourea for 24 h; soaking in 400 ppm thiourea for 24 h; soaking in 800ppm thiourea for 24 h; soaking in 1000 ppm thiourea for 24 h; soaking in 100 ppm KNO3 for 12 h; soaking in 200 ppm KNO3 for 12 h; soaking in 400 ppm KNO3 for 12 h; soaking in 800 ppm KNO3 for 12 h and soaking in 1000 ppm KNO3 for 12 h. The experiment was laid out in randomised block design with 13 pre-sowing treatments and the control with three replications of 100 seeds. The highest (54.33%) germination percentage was observed from cold-water for 48 hrs followed by thiourea 1000 ppm for 24 hrs (50.00%) and potassium nitrate 200 ppm for 12 hrs (48.67%). Parameters like germination value, mean germination time, root length, shoot length and seedling vigour index were significantly different among all the pre-treatments.
Keywords: Spondias pinnata, germination value, seedling vigour index, thiourea