Impact of gamma rays on the germination and seedling parameters of Groundnut
ASIAN J. EXP. BIOL. SCI. VOL 4 (1) 2013: 61-68
© Society of Applied Sciences
ORIGINAL ARTICLE
Impact of Gamma Rays on the Seed Germination and Seedling
Parameters of Groundnut (Arachis Hypogaea L.)
1*
1
1
1
1
M. Aparna. , Anurag Chaturvedi , M. Sreedhar. , D. Pavan Kumar ,
2
3
P. Venu-Babu and R. K. Singhal .
Quality Control Laboratory, Acharya N.G. Ranga Agricultural University, Rajendranagar, Hyderabad- 500 030, A. P, India
2
Nuclear 3Agriculture and Biotechnology Division, Bhabha Atomic Research Center, Trombay, Mumbai- 400 085, India.
Analytical Chemistry Division, Bhabha Atomic Research Center, Trombay, Mumbai- 400 085, India.
Received 10-10-2012
Revised 27-12-2012
Accepted 08-01-2013
ABSTRACT
The present investigation aimed at estimating the influence of gamma rays on germination and growth parameters of groundnut revealed suppressive effect compared to non irradiated seed. Groundnut seed (Narayani) were exposed to gamma
60
rays ranging from 0.70 kGy to 2.30 kGy using CO gamma radiation (GC 5000) facility at Quality Control Laboratory,
Acharya N.G Ranga Agricultural University, Rajendranagar, Hyderabad during 2010-2011. To find out LD50 dose for the seed and further investigate the influence on germination and seedling parameters. The experimental results revealed that the percentage of germination had decreased after irradiation and the effect become stronger with increase of gamma dose.
Parameters such as germination percentage, speed of germination, mean daily germination, peak value and germination value had significantly decreased with increased irradiation doses. Similarly seedling parameters viz., Root length, Shoot length, Vigour index and Root/Shoot length ratio expressed higher reduction at higher doses as compared to non irradiated control. The study clearly indicated increase in the deleterious effects of gamma irradiation at regular intervals, with attainment of LD50 at a dose of 1.50 kGy.
© Society of Applied Sciences
ORIGINAL ARTICLE
Impact of Gamma Rays on the Seed Germination and Seedling
Parameters of Groundnut (Arachis Hypogaea L.)
1*
1
1
1
1
M. Aparna. , Anurag Chaturvedi , M. Sreedhar. , D. Pavan Kumar ,
2
3
P. Venu-Babu and R. K. Singhal .
Quality Control Laboratory, Acharya N.G. Ranga Agricultural University, Rajendranagar, Hyderabad- 500 030, A. P, India
2
Nuclear 3Agriculture and Biotechnology Division, Bhabha Atomic Research Center, Trombay, Mumbai- 400 085, India.
Analytical Chemistry Division, Bhabha Atomic Research Center, Trombay, Mumbai- 400 085, India.
Received 10-10-2012
Revised 27-12-2012
Accepted 08-01-2013
ABSTRACT
The present investigation aimed at estimating the influence of gamma rays on germination and growth parameters of groundnut revealed suppressive effect compared to non irradiated seed. Groundnut seed (Narayani) were exposed to gamma
60
rays ranging from 0.70 kGy to 2.30 kGy using CO gamma radiation (GC 5000) facility at Quality Control Laboratory,
Acharya N.G Ranga Agricultural University, Rajendranagar, Hyderabad during 2010-2011. To find out LD50 dose for the seed and further investigate the influence on germination and seedling parameters. The experimental results revealed that the percentage of germination had decreased after irradiation and the effect become stronger with increase of gamma dose.
Parameters such as germination percentage, speed of germination, mean daily germination, peak value and germination value had significantly decreased with increased irradiation doses. Similarly seedling parameters viz., Root length, Shoot length, Vigour index and Root/Shoot length ratio expressed higher reduction at higher doses as compared to non irradiated control. The study clearly indicated increase in the deleterious effects of gamma irradiation at regular intervals, with attainment of LD50 at a dose of 1.50 kGy.