Adaptability of Seven Maize (Zea mays L.) Varieties in High Humid Rainforest Zone of Nigeria
DOI:
https://doi.org/10.54536/ajaset.v5i2.76Keywords:
Maize VarietiesAbstract
Field experiment was conducted at National Cereals Research Institute (NCRI) Uyo-Out station in 2015 and 2016 cropping seasons. The aim was to evaluate the yields of seven maize varieties in humid rainforest of Uyo, Southeastern Nigeria in view of recommending high yield varieties. The experiment was laid out in a randomized complete block design, replicated three times. The treatments were seven maize varieties viz- : Uwep (local). FARZ 32, Oba super 2, Oba 98 and suwan-I-SR, Quality protein maize (QPM) and extra-early. Growth and yield data were subjected to analysis of variance. Significant mean were compared using least significant difference at p<0.05. The result showed significant difference(p<0.05) plant height. FAR 32 was the tallest at 9WAP (159.37 and 163.33 cm in 2015 and 2016 cropping seasons, respectively) The shortest variety, 121.12 and 122.61 cm, respectively at 9WAP was recorded in QPM. The weight of grains varied significantly different. FARZ 32 had the heaviest 100 grain weight, 42.60 g and 41.30 g in 2015 and 2016, respectively. The least weight of 100 seeds 31.09 g and 32.99 g, respectively was recorded from Extra Early maize. Comparing the maize grain yield, the result indicated significant difference (p<0.05) in both cropping seasons. FARZ 32 had the highest grain yield, 4.37 and 4.30 tonnes per hectare in 2015 and 2016 in both cropping seasons. Oba super 2 had 4.30 and 4.20 tonnes per hectare in 2015 and 2016. The local cultivar Uweb had 2.49 and 2.59 tonnes per hectare grain yield in both years. The least grain yield, 2.32 and 2.45 tonnes per hectare, respectively was from Extra early maize. Oba, Farz -32, Oba super 2 and Oba 98 were recommended to farmers in the study area.
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