Browsing by Author "Oloo-Abucheli, G."

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    Effects of Earthing up and Pruning Systems on Growth and Yield of Tomato (Solanum lycopersicon.)
    (Asian Journal of Agricultural and Horticultural Research, 2020-12-12) Keter, I. K.; Oloo-Abucheli, G.; Muraya, M.; ; ;
    Tomato (Solanum lycopersicon) is an important crop cultivated and consumed worldwide. It provides wide variety of nutrients with many health-related benefits like, protection against cancer, maintains blood pressure and reduces blood glucose level in people with diabetes. Despite the importance of tomato, its growth and yield is limited by choice of cultural practices mainly earthing up and pruning system. There is also limited knowledge on the effect of integrating pruning and earthing up on tomato growth and yield. This study investigated the effect of integration of pruning and earthing up on the growth and yield of tomato. A split-plot experimental design, arranged in a Randomized Complete Block Design, with three replications was used. The study investigated two factors i.e. pruning system in the main plot (single stem, double stem, and triple stem) and earthing up in sub-plots. (0 cm, 10 cm, 20 cm, and 30 cm. The findings of the study revealed that earthing up and pruning system had a significant (p ˂ .05) effect on plant height and stem girth diameter at 45, 52, and 59 days after transplanting. The single stem pruning system and earthing up to 30 cm gave the tallest plant height with an average plant height of 69.80 cm in cultivation 1 and 71.50 cm in cultivation 2. Single stem pruning system and earthing up to 30 cm gave the largest stem girth diameter with mean stem girth diameter of 2.16 cm in cultivation 1 and 2.25 cm in cultivation 2. Triple stem pruning system, earthing up to 30 cm recorded the highest number of marketable fruits with 64500 fruits/hectare in cultivation 1 and 64333 fruits/hectare in cultivation 2. To improve tomato growth and development which consequently improves marketable yields, farmers are encouraged to consider triple stem pruning system with earthing up to level 30 cm.
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    Effects of Earthing up and Pruning Systems on Growth and Yield of Tomato (Solanum lycopersicon.)
    (Research gate, 2020) Keter, I. K.; Oloo-Abucheli, G.; Muraya, M.; ; ;
    Tomato (Solanum lycopersicon) is an important crop cultivated and consumed worldwide. It provides wide variety of nutrients with many health-related benefits like, protection against cancer, maintains blood pressure and reduces blood glucose level in people with diabetes. Despite the importance of tomato, its growth and yield is limited by choice of cultural practices mainly earthing up and pruning system. There is also limited knowledge on the effect of integrating pruning and earthing up on tomato growth and yield. This study investigated the effect of integration of pruning and earthing up on the growth and yield of tomato. A split-plot experimental design, arranged in a Randomized Complete Block Design, with three replications was used. The study investigated two factors i.e. pruning system in the main plot (single stem, double stem, and triple stem) and earthing up in sub-plots. (0 cm, 10 cm, 20 cm, and 30 cm. The findings of the study revealed that earthing up and pruning system had a significant (p ˂ .05) effect on plant height and stem girth diameter at 45, 52, and 59 days after transplanting. The single stem pruning system and earthing up to 30 cm gave the tallest plant height with an average plant height of 69.80 cm in cultivation 1 and 71.50 cm in cultivation 2. Single stem pruning system and earthing up to 30 cm gave the largest stem girth diameter with mean stem girth diameter of 2.16 cm in cultivation 1 and 2.25 cm in cultivation 2. Triple stem pruning system, earthing up to 30 cm recorded the highest number of marketable fruits with 64500 fruits/hectare in cultivation 1 and 64333 fruits/hectare in cultivation 2. To improve tomato growth and development which consequently improves marketable yields, farmers are encouraged to consider triple stem pruning system with earthing up to level 30 cm.
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    EFFECTS OF EARTHING UP AND PRUNING SYSTEMS ON GROWTH AND YIELD OF TOMATO (Solanum lycopersicum)
    (Chuka University, 2021) Keter, I. K.; Oloo-Abucheli, G.; Muraya, M.
    Tomato (Solanum lycopersicum) is an important crop cultivated and consumed worldwide. It provides wide variety of nutrients with many health-related benefits like, protection against cancer, maintains blood pressure and reduces blood glucose level in people with diabetes. Despite the importance of tomato, its growth and yield is limited by choice of cultural practices mainly earthing up and pruning system. There is also limited knowledge on the effect of integrating pruning and earthing up on tomato growth and yield. This study investigated the effect of integration of pruning and earthing up on the growth and yield of tomato. A split-plot experimental design, arranged in a Randomized Complete Block Design, with three replications was used. The study investigated two factors i.e. pruning system in the main plot (single stem, double stem, and triple stem) and earthing up in sub-plots. (0 cm, 10 cm, 20 cm, and 30 cm. The findings of the study revealed that earthing up and pruning system had a significant (p ˂0.05) effect on plant height and stem girth diameter at 45, 52, and 59 days after transplanting. The single stem pruning system and earthing up to 30 cm gave the tallest plant height with an average plant height of 69.80 cm in cultivation 1 and 71.50 cm in cultivation 2. Single stem pruning system and earthing up to 30 cm gave the largest stem girth diameter with mean stem girth diameter of 2.16 cm in cultivation 1 and 2.25 cm in cultivation 2. Triple stem pruning system, earthing up to 30 cm had highest marketable fruits with 64500 fruits/hectare in cultivation 1 and 64333 fruits/hectare in cultivation 2. To improve tomato growth and development which consequently improves marketable yields, farmers are encouraged to consider triple stem pruning system with earthing up to level 30 cm.
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    Poly Film Cover and Calcium Foliar Application Affect Occurrence and Prevalence of Two-Spotted Spider Mites in Rose Flower
    (2020-06) Oloo-Abucheli, G.; ; ;
    Spider mite is a major constraint in rose flower production. Though flower producers have not quantified the magnitude of the losses incurred, the quantity of the miticides used on their control is enormous. This experiment was designed to investigate the effect of UV spectrum through different poly-films on the occurrence of two spotted red spider mite a common rose flower pest. The study was carried out at Egerton University Horticulture Research and Teaching field. The experiment was split- split plot laid down in a Randomized Complete Block Design (RCBD) with polyfilms forming the main plot treatments. Two rose cultivars were tested for tolerance and calcium foliar feed was applied at four different concentration levels. Rose cultivars and calcium concentrations formed the sub and sub-sub plot treatments respectively. Poly-film samples were scanned through UV- 1800 shimadzu spectrophotometer to assess light transmission properties at different wavelengths. Data collection involved measuring of light transmission through Poly-films, the temperature and relative humidity in the tunnels was also monitored. The data was subjected to analysis of variance at 5% probability level and mean separation was performed using Tukey's Studentized Range (HSD) Test.Poly films modified the tunnel microclimate and this impact on prevalence and population of two spotted red spider mite. Mean temperature values of 41°C, 35.2°C and 32.8 °Cwere recorded under UV-A clear, IR 504 and UV-A 205/N poly films respectively. It was observedthat the number of spider mites increased with increase in temperature.A mean spider mite population of 5 mites/cm2 was recorded under the clear poly-film compared to 3 mites/cm2 under the UV-A 205/N. Changes in greenhouse microclimate influenced the population and prevalence of spider mite. Clear poly film that transmitted high light recorded high temperature and subsequently high number of mites.