Harnessing Sorghum Landraces to Breed High-Yielding, Grain Mold-Tolerant Cultivars With High Protein for Drought-Prone Environments.
Autor: | Nagesh Kumar MV; Regional Agricultural Research Station, Palem - Professor Jayashankar Telangana State Agricultural University, Hyderabad, India., Ramya V; Regional Agricultural Research Station, Palem - Professor Jayashankar Telangana State Agricultural University, Hyderabad, India., Govindaraj M; Sorghum Improvement Asia Program - International Crop Research Institute for Semi Arid Tropics, Patancheru, India., Sameer Kumar CV; Regional Agricultural Research Station, Palem - Professor Jayashankar Telangana State Agricultural University, Hyderabad, India., Maheshwaramma S; Regional Agricultural Research Station, Palem - Professor Jayashankar Telangana State Agricultural University, Hyderabad, India., Gokenpally S; Regional Agricultural Research Station, Palem - Professor Jayashankar Telangana State Agricultural University, Hyderabad, India., Prabhakar M; Indian Council of Agricultural Research-Central Research Institute for Dryland Agriculture, Hyderabad, India., Krishna H; Indian Council of Agricultural Research-Indian Institute of Millets Research, Hyderabad, India., Sridhar M; Regional Agricultural Research Station, Palem - Professor Jayashankar Telangana State Agricultural University, Hyderabad, India., Venkata Ramana M; Regional Agricultural Research Station, Palem - Professor Jayashankar Telangana State Agricultural University, Hyderabad, India., Avil Kumar K; Regional Agricultural Research Station, Palem - Professor Jayashankar Telangana State Agricultural University, Hyderabad, India., Jagadeeshwar R; Regional Agricultural Research Station, Palem - Professor Jayashankar Telangana State Agricultural University, Hyderabad, India. |
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Jazyk: | angličtina |
Zdroj: | Frontiers in plant science [Front Plant Sci] 2021 Jun 30; Vol. 12, pp. 659874. Date of Electronic Publication: 2021 Jun 30 (Print Publication: 2021). |
DOI: | 10.3389/fpls.2021.659874 |
Abstrakt: | Intermittent drought and an incidence of grain mold disease are the two major constraints affecting sorghum production and productivity. The study aimed at developing drought-tolerant sorghum varieties possessing a high protein content and tolerance to grain mold with stable performance using additive main effects and multiplicative interaction (AMMI) and genotype and genotype × environment interaction (GGE) biplot methods. Systematic hybridization among the 11 superior landraces resulted in subsequent pedigree-based breeding and selection from 2010 to 2015 evolved 19 promising varieties of grains such as white, yellow, and brown pericarp grains. These grain varieties were evaluated for their adaptability and stability for yield in 13 rainfed environments and for possessing tolerance to grain mold in three hot spot environments. A variety of yellow pericarp sorghum PYPS 2 (3,698 kg/ha; 14.52% protein; 10.70 mg/100 g Fe) possessing tolerance to grain mold was identified as a stable variety by using both AMMI and GGE analyses. Four mega-environments were identified for grain yield and fodder yield. Sorghum varieties PYPS 2, PYPS 4, PYPS 8, and PYPS 11 were highly stable in E2 with a low grain mold incidence. Besides meeting the nutritional demand of smallholder farmers under dryland conditions, these varieties are suitable for enhancing sorghum productivity under the present climate change scenario. Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. (Copyright © 2021 Nagesh Kumar, Ramya, Govindaraj, Sameer Kumar, Maheshwaramma, Gokenpally, Prabhakar, Krishna, Sridhar, Venkata Ramana, Avil Kumar and Jagadeeshwar.) |
Databáze: | MEDLINE |
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