scholarly works in Crop Protection & Environmental Biology

Permanent URI for this collectionhttps://repository.ibadanedu.com/handle/123456789/491

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Author: search.filters.author.Togun, A. O.Subject: search.filters.subject.Growth

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    Influence of Compost, Indole-3-acetic Acid and Gibberellic Acid application on productivity of Jatropha
    (Institute of Agricultural Research and Training (IAR&T),, 2020) Odeleye, I. S.; Togun, A. O.; Adejumo, S. A.; Adediji, I. T.; Muhamman, M. A.
    The problem of climate change on agricultural production and human health has brought about global need for alternative source of energy like biodiesel. In order to meet thè global demand for biodiesel, strategies to improve growth and yield of Jatropha would be of great importance. A single application of plant growth hormones (PGH) and compost was evaluated on thè growth and yield parameters of Jatropha curcas. The experiments comprises of three concentrations ( 100 mg\l, 150 mg\l and 200 mg\l) each of indole 3 acetic acid and gibberellic acid and three rates ( 10 t\ha, 20 fvha and 40 t\ha) of compost and thè untreated soil which served as thè control. Each treatment was in four replications set up in a completely randomized design (CRD). The results revealed that gibberellic acid at 150mg\l and indole-3-acetic acid at 200 mg\l significantly (P<0.05) increased thè chlorophyll content, growth and dry matter yield parameters of Jatropha. However, growth and yield of Jatropha curcas were improved by thè application of compost compared to thè control, (7.25 to 9.00, 18.08 to 19.23 and 2.80 to 3.25 for number of leaves/plant, leaf area and stem girth respectively). The values were not as high when compared to plants treated with plant growth hormones. Hence, gibberellic acid or indole-3-acetic acid at 150 mg\l and 200 mg\l respectively could be used for rapid development of seedlings.
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    Effect of varying rates of commercially produced organic fertilizer on the growth and fibre yield of kenaf (Hibiscus cannabinus L.).
    (African Journals OnLine (AJOL) platform, 2016) Olanipekun, S. O.; Togun, A. O.; Adejumo, S. A.; Adeniyan, O. N.
    Hibiscus cannabinus L. or kenaf is a fast growing and multipurpose annual crop planted for its horticultural and economie importance. Little is known about its response to different rates of organic fertilizer in Nigeria. The objective of thè study was therefore to evaluate thè effeets of different rates of commercially produced organic fertilizer (Aleshinloye organic fertilizer to be precise) on crop growth rate, vegetative growth and biomass accumulation in kenaf Five different rates of organic fertilizer equivalent to: 0, 70, 100, 130 and 160 kg N ha'1 replicated three times were used in a randomized complete block design (RCBD). There were contrasting results on thè effects of fertilizer rates on growth and physiology of kenaf. Significant effects were observed for some agronomie parameters such as plant height, stem diameter and fibre yield. The application of organic fertilizer at varying rates increased thè bast fibre yield of thè Ifeken 400 variety of kenaf troni 67.29 g/m2 (control) to 98.70, 147.88 and 157.40 g/ni2, in those grown on soil amended with 70, 100 and 130 kg N ha'1 of organic fertilizer respectively. Organic fertilizer could be utilized for thè cultivation of kenaf in Nigeria but thè rate to apply depends on thè nutrient content of thè organic fertilizer.