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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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Title Harnessing sorghum landraces to breed high-yielding, grain mold-tolerant cultivars with high protein for drought-prone environments
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Creator Nagesh Kumar, M.V., Ramya, V., Govindaraj, M., Sameer Kumar, C.V., Maheswaramma, S., Seshu, G., Prabhakar, M., Krishna, H., Sridhar, M., Venkata ramana, M., Avil Kumar, K. and Jagadeeswar, R.,
 
Subject sorghum, landraces, drought tolerance, grain mold, G × E interaction, AMMI, GGE biplot
 
Description Not Available
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.
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Date 2023-02-14T03:46:06Z
2023-02-14T03:46:06Z
2020-03-01
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/76152
 
Language English
 
Relation Not Available;
 
Publisher Not Available