Progressive Horticulture
  • Year: 2013
  • Volume: 45
  • Issue: 1

Effect of priming treatments on germination of watermelon seeds under low temperatures

  • Author:
  • T. Susila, S. Amarender Reddy1, M. Rajkumar2, G. Padmaja3, P.V. Rao3
  • Total Page Count: 4
  • Page Number: 182 to 185

1College of Horticulture, Rajendranagar, Hyderabad-500030

2Fruit Research Station, Sangareddy-501001

3College of Agriculture, Rajendranagar, Hyderabad-500030

Herbal Garden, Dr Y.S.R. Horticultural University, Rajendranagar, Hyderabad -30

*Email: susilatheeda@gmail.com

Online published on 30 May, 2013.

Abstract

Effect of priming treatments on germination of watermelon seeds under low temperatures were studied during 2006 and 2007. The length of the radical was maximum in seeds primed with T5(KNO3% + Me JA 1.0 μM). Length of radicle increased with increase in concentration of brassinosteroid. Length of plumule, total seedling length, fresh and dry weight of seedlings was highest in watermelon seeds primed with T4 (KNO3 3.0% + BR 3.0 μM). Early emergence has been observed in seeds primed with T5(KNO33.0% + Me JA 1.0 μM). Seeds primed with T5 (KNO33.0% + Me JA 1.0 μM) resulted in higher emergence percentage. Increase in concentration of methyl jasmonate from 1.0 μM to 3.0 μM reduced the percentage of emergence. Vigour index was highest in seeds primed with T4 (KNO3 3.0% + BR 3.0 μM). To obtain higher percentage of emergence under low temperature conditions priming of watermelon seeds with KNO3 3% + Me JA 1.0 μM was effective.

Keywords

Brassinosteroids, methyl jasmonate, plumule, priming, radical