This study was conducted to evaluate the impact of the population dynamics of species of flea beetle on Okra (Abelmoschus esculentus (L) Moench) production in FCT Abuja. The experiment was conducted at the Teaching and Research Farm, University of Abuja, Abuja. The treatments comprised of four different plant spacing of 50cm x 30cm, 50cm x 35cm, 50cm x 40cm and 50cm x 45cm. The two species of flea beetle encountered in the study (Monolepta goldingi and M. nigeriae) were recorded from 3 Weeks after Planting (WAP). The population of M. goldingi recorded was higher than M. nigeriae in the entire plot and throughout the duration of the experiment although the population of both remained high throughout the vegetative stage than the reproductive phase of growth of okra. Also, it was observed that the closely spaced plants had more pest infestation than wider spaced plants. The difference in the plant spacing has significance on the insect count and its population has significant reduction (P < 0.05) in fruit production, branching and Days to Flowering. The best fruit yield was obtained on the plot with plant spacing's of 50cm x 40cm, which yielded 11.84 fruits.
ABSTRACT) and two rates of cocktail micronutrient mixtures. These were tested in a randomized complete block design with three replications and the treatments were factorially combined. The results from the study revealed that micronutrients application increased the lysine and tryptophan content of the QPM varieties since values were increased by it. The result showed that addition of nitrogen fertilizer and micronutrients increased the crude protein content of the maize varieties and so also with micronutrients addition the QPM varieties differed significantly from each other with respect to lysine and tryptophan contents (p< 0.05).It can be inferred from this that though normal maize and QPM varieties could be exposed to the same environmental conditions and take up same amounts of micronutrients, the QPM varieties have genetic capacity to synthesize high levels of amino acids and so would have nutritionally higher quality grains. Plant breeders therefore may found this attribute useful in genetic manipulation and cultivar development for enhance protein biochemical components.
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