Optimisation of Seed Priming Techniques in Paddy
M. Veerendra *
Department of Agronomy, Agricultural College, Bapatla, ANGRAU, India.
K. Srinivasulu
Department of Agronomy, Agricultural College, Bapatla, ANGRAU, India.
B. Sreedevi
Department of Agronomy, Indian Institute of Rice Research, Rajendranagar, Hyderabad, India.
S. Ratna Kumara
Department of Crop Physiology, Agricultural College, Bapatla, ANGRAU, India.
V. Srinivasa Rao
Department of Statistics and Computer Applications, Agricultural College, Bapatla, ANGRAU, India.
*Author to whom correspondence should be addressed.
Abstract
Aim: To determine the ideal concentration of each priming agent among several selected concentrations which could produce robust paddy seedlings under laboratory conditions.
Place of Study: The present investigation was carried out at College farm, Agricultural College, Bapatla.
Methodology: Certain seedling vigour traits such as germination percentage, shoot length, root length, seedling length, seedling dry weight, seedling vigour index-I & II were recorded and analysed using crompletely randomized block design (CRD). Best concentration is the one with higher vigour indices.
Result: The results revealed that, 1% Nacl, 40 ppm ascorbic acid, 150 ppm gibberellic acid, 2 % neem leaf extracts, 0.5 & 0.1 % P & Zn were optimum concentrations under each priming technique. When compared among all the techniques, priming with gibberellic acid @ 150 ppm performed better in terms of all the vigour traits.
Keywords: Hormonal priming, paddy, seed invigoration, seed priming techniques