Evaluation of Maize Genotypes for Yield and Yield Attributes in Chitwan, Nepal
Evaluation of Maize Genotypes for Yield and Yield Attributes in Chitwan, Nepal
Arjun Bastola1*, Sachet Subedi2 and Malatee Bastola3
ABSTRACT
The yield attributes of maize, open pollinated varieties and hybrids were compared to the local varieties in Nepal, as the adoptability of these cultivars will cause variations in maize productivity. A total of 10 maize genotypes were evaluated in randomized complete block design with three replications during summer season 2019 in Chitwan, Nepal. Out of 10 maize genotypes, 8 (TX-369, CP-808, Pioneer-3396, Rajkumar, JKMH 502, Shresta NMH-731, CP-666, CP-858) were from international seed producing companies and two (Rampur composite and Rampur hybrid-10) as check from National Maize Research Program, Nepal. Soil texture of experimental site was sandy loam with a moderately acidic pH. Results revealed that genotype Rampur composite was early yielder but JKMH 502 was late in flowering. Rampur composite had higher ear height hence susceptible to stalk lodging than rest of the genotypes. Stalk lodging seen less in CP-808. Rajkumar had longer cob length and larger cob diameter while maximum number of rows per cob were noted in CP-858 genotype. Higher number of grains per rows was recorded in Rampur hybrid-10 genotype. Rampur hybrid-10 genotype had more shelling percentage but sterility percentage was lower. Highest grain yield was obtained from CP-858 followed by Rampur hybrid-10 and the lowest from Rampur composite. Hybrid developed in Nepal (i.e. Rampur hybrid-10) had shown better performance, competitive to other hybrid maize genotypes. The genotype Rampur composite which is open pollinated variety (OPV) did not show good yield performance as compared to hybrids. So, CP-858 and Rampur hybrid-10 genotypes had good yield and yield attributes and it could be recommended for the cultivation in the Chitwan district and terai region of Nepal having similar climate and altitude for higher grain production.
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