TY  - JOUR
AV  - public
UR  - http://dx.doi.org/10.5897/AJAR2014.8519
IS  - 19
PB  - Academic Journals
TI  - Combining ability of some sorghum lines for dry lands and sub-humid environments of East Africa
A1  - Ringo, J
A1  - Beatrice, W
A1  - Mary, M
A1  - Deshpande, S P
A1  - Rathore, A
A1  - Mneney, E
A1  - Onkware, A
A1  - Gudu, S
N1  - The authors are grateful to ICRISAT through Harnessing Opportunities for Product Enhancement (HOPE) Project for providing sorghum materials and financing this research.
SN  - 1991-637X
VL  - 10
N2  - Sorghum (Sorghum bicolor L. Moench) is a major food crop grown in dry lands and sub-humid areas of East Africa. A study was conducted between 2010 to 2012 in dry lands (Miwaleni, Kiboko) and sub-humid (Ukiriguru) environments to identify parents for hybrid production. It involved 121 lines from ICRISAT and 121 hybrids developed from 36 male sterile lines and 42 restorer lines in a line × tester crossing. Experiments were planted in an alpha lattice design with three replications. Analysis revealed significant (P < 0.05) differences between parents and between crosses for yield and yield components, indicative of potentiality for exploitation. Line IESV23010 expressed best (-6.5) general combing ability (GCA) for days to 50% flowering (DAF). Highest general combiner for height was -55.4 expressed in ICSR24007 and for yield was 382.8 expressed in IESV92156DL. The crosses SDSA4×ICSR43 and SDSA4×ICSR59059 exhibited high and significant specific combining ability (SCA) for DAF. Lines IESB2 and ICSB44 were suited to sub-humid, whereas BTX623, ICSB15 and ICSB6 to dry lands environments. Testers IESV91104DL, IESV91131DL, ICSR93034 were well suited to dry lands whereas KARI-MTAMA1 and IESV23019 to sub-humid environments. The parents identified could be used to produce hybrids and varieties for the dry lands and sub-humid environments.
SP  - 2048
Y1  - 2015/05//
EP  - 2060
ID  - icrisat9425
KW  - Combining ability
KW  -  Lines
KW  -  Restorers
KW  -  Sorghum
KW  -  Top-cross hybrids
KW  -  East Africa
JF  - African Journal of Agricultural Research
ER  -