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Retraction: On-farm hydro and nutri-priming increases yield of rainfed pearl millet through physio-biochemical adjustments and anti-oxidative defense mechanism. PLoS One 2022; 17:e0272535. [PMID: 35976868 PMCID: PMC9384992 DOI: 10.1371/journal.pone.0272535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Balbaa MG, Osman HT, Kandil EE, Javed T, Lamlom SF, Ali HM, Kalaji HM, Wróbel J, Telesiñski A, Brysiewicz A, Ghareeb RY, Abdelsalam NR, Abdelghany AM. Determination of morpho-physiological and yield traits of maize inbred lines ( Zea mays L.) under optimal and drought stress conditions. FRONTIERS IN PLANT SCIENCE 2022; 13:959203. [PMID: 35968146 PMCID: PMC9366912 DOI: 10.3389/fpls.2022.959203] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 06/29/2022] [Indexed: 05/05/2023]
Abstract
Globally, climate change could hinder future food security that concurrently implies the importance of investigating drought stress and genotype screening under stressed environments. Hence, the current study was performed to screen 45 diverse maize inbred lines for 18 studied traits comprising phenological, physiological, morphological, and yield characters under optimum and water stress conditions for two successive growing seasons (2018 and 2019). The results showed that growing seasons and water regimes significantly influenced (p < 0.01) most of the studied traits, while inbred lines had a significant effect (p < 0.01) on all of the studied traits. The findings also showed a significant increase in all studied characters under normal conditions compared to drought conditions, except chlorophyll content, transpiration rate, and proline content which exhibited higher levels under water stress conditions. Furthermore, the results of the principal component analysis indicated a notable distinction between the performance of the 45 maize inbred lines under normal and drought conditions. In terms of grain yield, the drought tolerance index (DTI) showed that Nub60 (1.56), followed by Nub32 (1.46), Nub66 (1.45), and GZ603 (1.44) were the highest drought-tolerant inbred lines, whereas Nub46 (0.38) was the lowest drought-tolerant inbred line. These drought-tolerant inbred lines were able to maintain a relatively high grain yield under normal and stress conditions, whereas those drought-sensitive inbred lines showed a decline in grain yield when exposed to drought conditions. The hierarchical clustering analysis based on DTI classified the forty-five maize inbred lines and eighteen measured traits into three column- and row-clusters, as inbred lines in cluster-3 followed by those in cluster-2 exhibited greater drought tolerance in most of the studied traits. Utilizing the multi-trait stability index (MTSI) criterion in this study identified nine inbred lines, including GZ603, as stable genotypes in terms of the eighteen studied traits across four environments. The findings of the current investigation motivate plant breeders to explore the genetic potential of the current maize germplasm, especially in water-stressed environments.
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Affiliation(s)
- Maha G. Balbaa
- Maize Research Department, Field Crops Research Institute, Agriculture Research Center, Cairo, Egypt
| | - Hassan T. Osman
- Maize Research Department, Field Crops Research Institute, Agriculture Research Center, Cairo, Egypt
| | - Essam E. Kandil
- Plant Production Department, Faculty of Agriculture (Saba Basha), Alexandria University, Alexandria, Egypt
| | - Talha Javed
- College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Sobhi F. Lamlom
- Plant Production Department, Faculty of Agriculture (Saba Basha), Alexandria University, Alexandria, Egypt
| | - Hayssam M. Ali
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Hazem M. Kalaji
- Department of Plant Physiology, Institute of Biology, Warsaw University of Life Sciences SGGW, Warsaw, Poland
- Institute of Technology and Life Sciences-National Research Institute, Falenty, Poland
| | - Jacek Wróbel
- Department of Bioengineering, West Pomeranian University of Technology in Szczecin, Szczecin, Poland
| | - Arkadiusz Telesiñski
- Department of Bioengineering, West Pomeranian University of Technology in Szczecin, Szczecin, Poland
| | - Adam Brysiewicz
- Institute of Technology and Life Sciences-National Research Institute, Falenty, Poland
| | - Rehab Y. Ghareeb
- Plant Protection and Biomolecular Diagnosis Department, Arid Lands Cultivation Research Institute, The City of Scientific Research and Technological Applications, Alexandria, Egypt
| | - Nader R. Abdelsalam
- Agricultural Botany Department, Faculty of Agriculture (Saba Basha), Alexandria University, Alexandria, Egypt
- *Correspondence: Nader R. Abdelsalam,
| | - Ahmed M. Abdelghany
- Crop Science Department, Faculty of Agriculture, Damanhour University, Damanhour, Egypt
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