| Title: |
Assessing genotype-by-environment interactions and trait associations in forage sorghum using GGE biplot analysis. ; Not Available |
| Authors: |
Aruna C., S. Rakshit; PK Shrotria, SK Pahuja; SK Jain, S Siva Kumar; ND Modi, DT Deshmukh; Rahul Kapoor, JV Patil. |
| Publisher Information: |
Not Available |
| Publication Year: |
2015 |
| Collection: |
KRISHI Publication and Data Inventory Repository (Knowledge based Resources Information Systems Hub for Innovations in Agriculture - Indian Council of Agricultural Research, ICAR) |
| Subject Terms: |
Forage sorghum; GGE biplot |
| Description: |
Not Available ; 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. ; Not Available |
| Document Type: |
report |
| Language: |
English |
| Relation: |
Not Available; http://krishi.icar.gov.in/jspui/handle/123456789/7538 |
| Availability: |
http://krishi.icar.gov.in/jspui/handle/123456789/7538 |
| Accession Number: |
edsbas.26ADCA95 |
| Database: |
BASE |