Evaluation of Different Hybrid Maize Varieties on Yield and Agronomic Traits at Udayapur, Nepal

Abstract

Accepted: 16 Dec. 2020 A field experiment was set-up in the farmer field of Belaka Municipality, Udayapur to evaluate the growth, yield, and yield attributes of five maize varieties in a randomized complete block design which was replicated four times during the summer season of 2019. The soil texture of the experiment site was sandy loam and pH was moderately acidic in nature. Data on phenology, yield, and yield attributes of all maize varieties were recorded. The plant height of CP-858 was significantly taller and CP-808 had a smaller plant height than other varieties. CP-666 took longer days for tasseling but TX369 is earlier in tasseling than other varieties. Statistically, there is no difference of varieties on-ear height and number of leaf below and above the main cob. Cob length and length diameter ratio were seen significantly more in CP-666 than other varieties. All the varieties had statistically similar cob diameter, number of rows per cob, thousand-grain weight, and shelling percentage but CP-666 produced significantly higher grain yield (11 t ha ) but TX-369, CP-808 N, CP-808 and CP-858 had statistically similar and lower grain yield than CP-666. Cluster analysis showed that the first cluster consists of four maize varieties; TX-369, CP-808, CP-666, CP-808 which represent 80% of the total varieties. So, CP-666 variety of maize was found better in many traits and grain yield based on these research findings.