Seed priming with growth regulators ameliorates salt stress in wheat (Triticum aestivum)

T N TIWARI; DIPTI KAMAL; S RAJENDRA PRASAD

doi:10.56093/ijas.v86i8.60507

Authors

T N TIWARI ICAR-Indian institute of Seed Science, Kushmaur, Mau, Uttar Pradesh 275 103
DIPTI KAMAL ICAR-Indian institute of Seed Science, Kushmaur, Mau, Uttar Pradesh 275 103
S RAJENDRA PRASAD ICAR-Indian institute of Seed Science, Kushmaur, Mau, Uttar Pradesh 275 103

https://doi.org/10.56093/ijas.v86i8.60507

Keywords:

Plant Growth Regulator, Salt stress, Seed Priming, Wheat

Abstract

Field experiment was conducted for three consecutive years (2008-09 to 2010-11) to study the effect of seed priming with IBA, GA₃, kinetin and salicylic acid separately on germination, growth and yield of wheat (Triticum aestivum L.) under salt-affected soils at Directorate of Seed Research, Mau. Seeds primed @100 ppm with IBA, GA₃, kinetin and salicylic acid separately for 12 hr significantly enhanced the seed germination (18-26%), seedling dry weight (25-72%), vigour index (32-116%), plant height (4-8.4%), number of tillers (2-14.6%), total dry matter (3-11%), number of grains (13-18%) and finally test weight (5.3-6.1%) and grain yield (2-14%) over unprimed control in variety HUW 234. Among the treatments, kinetin showed maximum values as well as percent improvement over control in almost all the characters studied followed by GA₃, IBA and salicylic acid. Improvement observed through seed priming indirectly reflects role of growth regulators in amelioration of salt stress.

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