| Author | Priyadarshi, Amit |
| Call Number | AIT Thesis no.AS-04-10 |
| Subject(s) | Corn--Yields--Nepal
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. AS-04-10 |
| Abstract | A study was conducted to determine the combining ability of yield and yield
components in maize and their interaction with environment. The 146 hybrids were
evaluated in a Randomized Complete Block Design with two replications. Hybrids
were obtained from the full diallel cross scheme, i.e. 10 x 10 for yellow inbreds and
8 x 8 for white inbreds. Altogether 90 yellow, 56 white hybrids, 4 local checks were
evaluated at RARS, Parwanipur, Nepal during December 2003 to April 2004.
There was extensive genetic variability among yellow and white hybrids.
KWM 30 x KWM 5 cross gave the highest yield (i.e.10.97 t ha-1
), whereas most of
the genotypes performed better than the best check variety. 1000-grain weight, ear to
plant ratio and grain rows and number per ear were showed significant (P<0.05)
results. The specific combining ability (SCA) analysis of diallel data for yield and
1000-grain weight were highly significant (P<0.01) among genotypes. Yellow
inbred lines, KYM 23, 33, 35, 79, 81 and white inbred lines, KWM 5, 12, 30 have
positive general combining ability (GCA) to yield, and hence suitable for hybrid
development. Inbred and hybrids were better in nutrition as compared to check variety Khumal Yellow. Inbred line KYM 33, KYM 35 and KWM 30 have higher protein and nitrogen percentage than their respective hybrids. Inbred line KYM 33 has highest protein content (12.31 %) while, KWM 36 was richest in Tryptophan (1.35%) and Lysine (4.08%) respectively. |
| Year | 2004 |
| Corresponding Series Added Entry | Asian Institute of Technology.Thesis ; no. AS-04-10 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Food, Agriculture and Natural Resources (Former title: Department of Food Agriculture, and BioResources (DFAB)) |
| Academic Program/FoS | Agricultural and Aquatic Systems (AS) |
| Chairperson(s) | Ranamukhaarachchi, S. L.; |
| Examination Committee(s) | Rakshit, Sudip K.;Mair, Graham C.;Jayasuriya, H.P.W.; |
| Scholarship Donor(s) | Asian Institute of Technology Fellowship |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 2004 |