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Harnessing Sorghum Landraces to Breed High-Yielding, Grain Mold-Tolerant Cultivars With High Protein for Drought-Prone Environments

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Relation http://oar.icrisat.org/11848/
https://doi.org/10.3389/fpls.2021.659874
doi:10.3389/fpls.2021.659874
 
Title Harnessing Sorghum Landraces to Breed High-Yielding, Grain Mold-Tolerant Cultivars With High Protein for Drought-Prone Environments
 
Creator Nagesh Kumar, M V
Ramya, V
Govindaraj, M
Sameer Kumar, C V
Maheshwaramma, S
Gokenpally, S
Prabhakar, M
Krishna, H
Sridhar, M
Venkata Ramana, M
Avil Kumar, K
Jagadeeshwar, R
 
Subject Drought Tolerance
Sorghum
 
Description Intermittent drought and an incidence of grainmold disease are the twomajor 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.
 
Publisher Frontiers Media
 
Date 2021-06
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://oar.icrisat.org/11848/1/fpls-12-659874.pdf
Nagesh Kumar, M V and Ramya, V and Govindaraj, M and Sameer Kumar, C V and Maheshwaramma, S and Gokenpally, S and Prabhakar, M and Krishna, H and Sridhar, M and Venkata Ramana, M and Avil Kumar, K and Jagadeeshwar, R (2021) Harnessing Sorghum Landraces to Breed High-Yielding, Grain Mold-Tolerant Cultivars With High Protein for Drought-Prone Environments. Frontiers in Plant Science (TSI), 12. ISSN 1664-462X