NDLI: Reactive oxygen species mediated improvement in vigour of static and pulsed magneto-primed cherry tomato seeds

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Indian Journal of Plant Physiology : Volume 20, Issue 2, June 2015

Indian Journal of Plant Physiology : Volume 20, Issue 1, March 2015

Indian Journal of Plant Physiology : Volume 19

Indian Journal of Plant Physiology : Volume 18

Reactive oxygen species mediated improvement in vigour of static and pulsed magneto-primed cherry tomato seeds

Content Provider	Springer Nature Link
Author	Dahuja, Anil Singh, A. K. Paul, Vijay Gupta, Mukesh Kumar Anand, Anjali
Copyright Year	2015
Abstract	Seed priming with magnetic field was used to improve germination, vigour and yield in cherry tomato seeds. Cherry tomato seeds were magneto-primed with various doses of static magnetic field (SMF) in the range of 50–150 milliTesla (mT) for duration of 30 min and 1 h. SMF dose of 100 mT for 30 min gave maximum increase in germination characteristics and was selected for application as pulsed dose. Seeds were exposed to pulsed magnetic field (PMF) dose in the cycles of 2, 3, 5 or 6 min on and off where PMF dose of 3 min on and off cycle showed substantial enhancement of 23 % in seedling vigour compared to other treatments. Superoxide ion and hydrogen peroxide contents increased by two fold in static and pulsed magneto-primed seeds. Antioxidant enzymes system revealed increased superoxide dismutase activity and oxidative reaction of peroxidase resulted in production of hydrogen peroxide during germination of magneto-primed seeds. Increased ascorbate peroxidase activity during initial stages and catalase at later stages of germination helped in scavenging of hydrogen peroxide in germinating magneto-primed seeds. PMF treated seeds showed better response in terms of invigoration and reactive oxygen species related parameters than static magneto-primed seeds. Both static and pulsed magneto-primed seeds were evaluated for their field performance. Yield increased by 17 % in SMF and 27 % in plants from PMF primed seeds. There was no major change in the number of fruits and the increase in yield was mainly due to a substantial increase in weight per fruit, which was 7.76 and 8.55 g in SMF and PMF, respectively as compared to 6.4 g in control. Fruit quality was also better in primed compared to control seeds. Our results indicated that pulsed magneto-priming is more effective in dry seed priming treatment for seed invigoration in cherry tomatoes.
Starting Page	197
Ending Page	204
Page Count	8
File Format	PDF
ISSN	00195502
Journal	Indian Journal of Plant Physiology
Volume Number	20
Issue Number	3
e-ISSN	09740252
Language	English
Publisher	Springer India
Publisher Date	2015-06-03
Publisher Place	New Delhi
Access Restriction	Subscribed
Subject Keyword	Vigour Reactive oxygen species Cherry tomato Seed germinability Plant Physiology Antioxidant enzyme Cell Biology Plant Genetics & Genomics Plant Biochemistry Pulsed magneto-priming Static magneto-priming Plant Sciences Plant Ecology
Content Type	Text
Resource Type	Article
Subject	Plant Science Agronomy and Crop Science

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