Assessment of Groundnut Elite Lines under Drought Conditions and Selection of Tolerance Associated Traits

Falke, A B and Hamidou, F and Halilou, O and Harou, A (2019) Assessment of Groundnut Elite Lines under Drought Conditions and Selection of Tolerance Associated Traits. Advances in Agriculture, 2019 (303427). pp. 1-10. ISSN 2356-654X

PDF - Published Version Download (2MB)

Abstract

Investigation of groundnut genotypes response to drought stress could contribute to improving drought tolerance and productivity. The objective of this study was to investigate new improved groundnut varieties response to drought stress under controlled conditions to identify tolerant materials and drought tolerance related traits.Thus, three experiments were conducted during offseasons: two experiments in lysimetric system in 2017 and 2018 and one experiment in pots in 2017, to assess twelve varieties in a randomized complete block design with 2 water regimes and 4 replications.The water regimes were a full irrigation (WW) and an intermittent drought imposed at flowering times (WS). The investigated morphophysiological traits like transpiration, specific leaf area, root dry matter, root length density, and yield components decreased underWS. Significant year effect and genotypic variation were observed on most of investigated traits. Genotypes ICGV 92206 and ICGV 06319 showed low transpiration and revealed high pod yielding and early maturing genotypes under both water regimes, while genotypes ICGV 92035, ICGV 92195, ICGV 02038, ICGV 07211, and ICGV 07210 were drought-sensitive for pods production but produced high haulm under both water regimes. ICGV 92206, ICGV 02005, ICGV 02125, and ICGV 06319 showed higher yielding than 55-437 and Fleur 11. In this study, low total transpiration to control water loss, chlorophyll content, and root length density revealed drought tolerance associated traits for pod production, while TTW, TE, RDW, and RV revealed drought tolerance associated traits for fodder production.

Item Type:	Article
Divisions:	Research Program : West & Central Africa
CRP:	CGIAR Research Program on Grain Legumes
Uncontrolled Keywords:	groundnut genotypes, drought tolerance, improved groundnut varieties, drought stress, tolerant materials, water loss, chlorophyll content, root length density, pod production
Subjects:	Others > Crop Improvement Others > Drought Tolerance Mandate crops > Groundnut Others > African Agriculture Others > Niger
Depositing User:	Mr Ramesh K
Date Deposited:	16 Jul 2019 04:48
Last Modified:	16 Jul 2019 04:48
URI:	http://oar.icrisat.org/id/eprint/11159
Official URL:	https://doi.org/10.1155/2019/3034278
Projects:	UNSPECIFIED
Funders:	CRP Grain Legumes, West African Agriculture Productivity Program
Acknowledgement:	This researchwork received funding support from CRP Grain Legumes and West African Agriculture Productivity Program project. The authors are grateful to Dr. Janila P. (Groundnut breeder, senior scientist, ICRISAT, India) for providing seeds of the 10 improved cultivars and technicians of ICRISAT Niamey Crop Physiology Laboratory and collaborators of department of Biology of Sciences and Techniques Faculty of Abdou Moumouni University, Niamey, Niger.
Links:	Google Scholar

View Statistics

Actions (login required)

View Item