Evaluation of Climate Resilient Groundnut Genotypes for Thermo Tolerance under Climate Change

Authors

  • K. John Institute of Frontier Technology, Regional Agricultural Research Station, Tirupati, Andhra Pradesh (517 502), India
  • M. V. Madhavi Santhoshi Institute of Frontier Technology, Regional Agricultural Research Station, Tirupati, Andhra Pradesh (517 502), India
  • P. Rajasekhar Institute of Frontier Technology, Regional Agricultural Research Station, Tirupati, Andhra Pradesh (517 502), India

Keywords:

Groundnut, temperature induction response, induced temperature, lethal temperature

Abstract

A total of about one hundred groundnut (Arachis hypogaea L.) genotypes were evaluated for temperature tolerance. The per se performance under induced temperature, the mean root length ranged from 0.00 (ICGV-05155, ICGV-06424, ICGV-07247 and ICGV-07273) to 6.90 cm (TCGS-1837). The mean shoot length ranged from 0.00 (TCGS-1826, ICGV-05155, ICGV-06423, ICGV-06424, ICGV-07222, ICGV-07225, ICGV-07240, ICGV-07245,   ICGV-07247, ICGV-07262, ICGV-07235, ICGV-07273, ICGV-07395, ICGV-07337, ICGV-07406, MLTG-03, MLTG-09, MLTG-11andNarayani) to 3.20cm (TCGS-1522). Under lethal temperature, the mean root length ranged from 0.00 (ICGV-05155, ICGV-06424, ICGV-07247 and ICGV-07273 to 6.9 cm (TCGS-1837). The mean shoot length ranged from 0.00 (TCGS-1826, TCGS-1843, TCGS-1859, TCGS-1861, ICGV-06423, ICGV-06424, ICGV-07219, ICGV-07220, ICGV-07222, ICGV-07225, ICGV-07228,  ICGV-07240, ICGV-07241, ICGV-07245, ICGV-07247, ICGV-07268, ICGV-07235,  ICGV-07270, ICGV-07273, ICGV-07286, ICGV-07390, ICGV-07392, ICGV-07395, ICGV-07396,  ICGV-07296, ICGV-07337,  ICGV-07403, ICGV-07404, ICGV-07405, ICGV-07406, ICGV-7408,  MLTG-02,  MLTG-03, MLTG-04,  MLTG-06, MLTG-08,  MLTG-09, MLTG-11, Narayani and K-6  to 3.00 cm (TCGS-1522 and TCGS-1824).  The best performing groundnut genotypes viz.,TCGS-1508, TCGS-1511, TCGS-1514, TCGS-1516, TCGS-1517, TCGS-1520, TCGS-1521, TCGS-1522, TCGS-1523, TCGS-1527, TCGS-1529, TCGS-1804, TCGS-1807, TCGS-1809, TCGS-1810, TCGS-1813, TCGS-1814, TCGS-1815, TCGS-1817, TCGS-1818, TCGS-1819, TCGS-1820, TCGS-1821, TCGS-1822, TCGS-1824, TCGS-1825, TCGS-1829, TCGS-1831,TCGS-1837, TCGS-1838, TCGS-1839, TCGS-1845, TCGS-1851, TCGS-1853, TCGS-1855, TCGS-1868, TCGS-1869, TCGS-1872, TCGS-1876 and ICGV-07262 were found promising climate resilient groundnut genotypes based on survival under lethal temperature.Some of the genotypes showed better performance under induced and lethal temperatures for root and shoot lengths such as TCGS-1511, TCGS-1520, TCGS-1521, TCGS-1522, TCGS-1528, TCGS-1529, TCGS-1804, TCGS-1807,  TCGS-1809 and TCGS-1810.These promising genotypes could be utilized in the breeding programme as donors to develop high yielding drought tolerant genotypes.

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Published

2019-10-23

How to Cite

1.
John K, Santhoshi MVM, Rajasekhar P. Evaluation of Climate Resilient Groundnut Genotypes for Thermo Tolerance under Climate Change. IJBSM [Internet]. 2019 Oct. 23 [cited 2024 Jul. 27];10(Oct, 5):481-90. Available from: https://ojs.pphouse.org/index.php/IJBSM/article/view/3869

Issue

Vol. 10 No. Oct, 5 (2019)

Section

Articles