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http://krishi.icar.gov.in/jspui/handle/123456789/7538
Title: | Assessing genotype-by-environment interactions and trait associations in forage sorghum using GGE biplot analysis. |
Other Titles: | Not Available |
Authors: | Aruna C., S. Rakshit, PK Shrotria, SK Pahuja, SK Jain, S Siva Kumar, ND Modi, DT Deshmukh, Rahul Kapoor and JV Patil. |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | ICAR::Indian Institute of Millets Research |
Published/ Complete Date: | 2015-01-01 |
Project Code: | Not Available |
Keywords: | Forage sorghum, GGE biplot |
Publisher: | Not Available |
Citation: | Not Available |
Series/Report no.: | Not Available; |
Abstract/Description: | Forage sorghum is an important component of the fodder supply chain in the arid and semi-arid regions of the world because of its high productivity, ability to utilize water efficiently and adaptability to a wide range of climatic conditions. Identification of high-yielding stable genotypes (G) across environments (E) is challenging becauseofthecomplexG×Einteractions(GEI).Inthepresentstudy,theperformanceof16foragesorghumgenotypes over seven locations across the rainy seasons of 2010 and 2011 was investigated using GGE biplot analysis. AnalysisofvariancerevealedtheexistenceofsignificantGEIforfodderyieldandalleightassociatedphenotypic traits.Locationaccountedforahigherproportionofthevariation(0·72–0·91),whilegenotypecontributedonly0·06– 0·21 oftotal variation indifferenttraits.Genotype-by-locationinteractionscontributed0·02–0·13oftotalvariation. Promisinggenotypesforfodderyieldandeachoftheassociatedtraitscouldbeidentifiedeffectivelyusingagraphical biplot approach. The majority of testlocations were highly correlated. A ‘Which-won-where’ study partitioned the testlocations into two mega-environments (MEs): ME1 was represented by five locations with COFS 29 as the best genotype, while ME2 had two locations with S 541 as the best genotype. The existence of two MEs suggested a need for location-specific breeding. Genotype-by-trait biplots indicated that improvement for forage yield could beachievedthrough indirect selectionfor plantheight, leafnumber andearlyvigour. |
Description: | Not Available |
ISSN: | Not Available |
Type(s) of content: | Research Paper |
Sponsors: | Not Available |
Language: | English |
Name of Journal: | Journal of Agricultural Sciences |
NAAS Rating: | Not Available |
Volume No.: | 154 |
Page Number: | 73-86 |
Name of the Division/Regional Station: | Crop Science |
Source, DOI or any other URL: | doi:10.1017/S0021859615000106 |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/7538 |
Appears in Collections: | CS-IIMilletsR-Publication |
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