eprintid: 10713
rev_number: 11
eprint_status: archive
userid: 1305
dir: disk0/00/01/07/13
datestamp: 2018-06-12 11:07:12
lastmod: 2018-06-12 11:07:12
status_changed: 2018-06-12 11:07:12
type: conference_item
metadata_visibility: show
creators_name: Rekha Rani, K
creators_name: Latha, P
creators_name: Sujatha, K
creators_name: Vasanthi, R P
creators_name: Janila, P
creators_name: Usha, R
icrisatcreators_name: Janila, P
affiliation: Sri Padmavati Mahila Visvavidyalayam (Women’s University) (Tirupati)
affiliation: Institute of Frontier Technology, Regional Agricultural Research Station, ANGRAU (Tirupati)
affiliation: ICRISAT (Patancheru)
country: India
title: Screening groundnut genotypes using TIR (Temperature Induction Response) technique for thermotolerance
ispublished: pub
subjects: ABio
subjects: s1.3
subjects: s2.13
divisions: CRPS2
full_text_status: public
pres_type: paper
keywords: Temperature Induction Response, Groundnut genotypes, Heat stress tolerance
abstract: Heat is one of the major abiotic stresses that adversely affect
crop production worldwide at different stages of development.
Groundnut is a major crop cultivated in tropical and sub-tropical
regions where high temperature stress is a serious constraint
for its production. In the present study, temperature induction
response (TIR) was conducted for screening the tolerant genotypes,
where the seedlings were exposed to sublethal temperature
from 34ºC-54ºC for 4 hours 30 minutes followed by lethal
temperature at 58ºC for 3 hours. From the 100 diverse genotypes
screened, 24 showed tolerance to high temperature with mean
percent seedling survival of 92%, 30 showed moderate tolerance
and 46 were identified as temperature susceptible compared
with checks (100% survival). Results suggested that TIR is used
to identify stable thermotolerant genotypes and could be explored
as donor source useful in breeding programmes. Further
work will be focused on the physiological and molecular basis of
thermotolerance in selected tolerant and susceptible genotypes
for the identification of heat stress tolerant genes which could
be useful for engineering plants with improved heat tolerance.
date: 2017-02
date_type: published
pagerange: P-065
event_title: InterDrought-V
event_location: Hyderabad, India
event_dates: February 21-25, 2017
event_type: conference
refereed: TRUE
related_url_url: http://idv.ceg.icrisat.org/wp-content/uploads/2017/02/Abstract_Book_Final.pdf
related_url_type: org
citation:   Rekha Rani, K and Latha, P and Sujatha, K and Vasanthi, R P and Janila, P and Usha, R  (2017) Screening groundnut genotypes using TIR (Temperature Induction Response) technique for thermotolerance.  In: InterDrought-V, February 21-25, 2017, Hyderabad, India.     
document_url: http://oar.icrisat.org/10713/1/Screening%20groundnut%20genotypes%20using%20TIR%20%28Temperature%20Induction%20Response%29.pdf