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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

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        Abstract - Issue Jul 2018, 39 (4)                                                                                                             Back



nstantaneous and historical temperature effects on a-pinene

Effect of seed priming induced metabolic changes on germination

and field emergence of chickpea

 

A. Lamichaney1*, V. Kumar2 and P.K. Katiyar1

1Crop Improvement Division, ICAR-Indian Institute of Pulses Research, Kanpur-208 024, India

2Division of Basic Science, ICAR-Indian Institute of Pulses Research, Kanpur-208 024, India

*Corresponding Author E-mail: amritiipr@gmail.com

 

 

 

Key words

Chickpea

Field emergence

Germination

Priming

Protein synthesis 

 

Publication Data

Paper received : 06.07.2017

Revised received : 19.12.2017

Accepted : 16.01.2018       

 

Abstract

Aim: Seed priming improves vigour, however, different priming agents may vary in their effectiveness. Therefore, main aim of this study was to decipher the physiological mechanism of vigour improvement following seed priming using different agent.    

 

Methodology: Chickpea cultivar Kripa was primed with different concentration of poly ethylene glycol, mannitol, salicylic acid, gibberellic acid and water for varying duration. Dry unprimed seed was used as control. De novo protein synthesis, sugar content, electrical conductivity of seed leachate, germination percent, time to 50% germination, uniformity of germination, germination energy, field emergence, hundred seed weight, seed yield were determined to understand the physiological basis of priming.        

 

Results: Priming reduced time to 50% germination, mean germination time and improved germination energy, final germination, field emergence and seed yield over control. Overall, the favourable effect of seed priming were related to de novo protein synthesis, an improved membrane repair (revealed by low ion leakage) and germination substrates (increased sugar content) for vigorous and earlier production of seedlings.           

 

Interpretation: Of the treatments, seeds primed with water for 17 hrs and PEG -0.5 / -1.0 Mpa for 24 hrs were most effective in enhancing field emergence and seed yield of chickpea and can be therefore recommended for increasing productivity in chickpea.

 

 

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