Browsing by Author "Zanamwe, Pesanai"

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    The effects of gibberellic acid and short-day treatments on growth and flowering of Chrysanthemum morifolium cv. Breeze cassus
    (Horticultural Association of Kenya (HAK), 2023-10-21) Zanamwe, Pesanai; Tong, Rene
    Chrysanthemum morifolium cv. Breeze cassus that is widely grown as a commercial pot plant in South Africa grow short and branch poorly under the usual photoperiodic conditions. It was hypothesised that understanding the effects of gibberellic acid(GA3), a plant hormone that promotes flowering and stem elongation in plants, may aid in improving its quality. To study this, the vegetative growth and flowering characteristics of Chrysanthemum morifolium cv. Breeze cassus plants treated with GA3 once, i.e., three weeks after transplanting, GA3twice, i.e., three and five weeks after transplanting, gibberellin biosynthesis inhibitor, daminozide, and short-day photo period were evaluated. Data was collected on plant height, number of branches per plant, time to flowering, flower buds per plant and flower size and subjected to analysis of variance. Plants treated with a short day photoperiod flowered early compared to the control. However, the plant height and flower buds per plant were significantly (p <0.05) reduced. The final plant height of short-day photoperiod and daminozide treated plants were not statistically (p > 0.05) different. Both GA3treatmentssignificantly(p < 0.05) increased plant height compared to the control, daminozide and short-day photoperiod treated plants. Plants treated with GA3 twice were significantly(p < 0.05) taller compared to plants treated with GA3 once. Treatment with GA3, either once or twice, had no effect on time to flowering, however, treating plants with GA3once,significantly increased flower buds and treating plants with GA3twice significantly increased flower diameter compared to the control. It was noted that treatment of Chrysanthemum morifolium cv. Breeze cassus with short-day photoperiod and GA3have different effects on plant growth and flowering. It was, therefore, concluded that, although GA3increasesplant height of Chrysanthemum morifolium cv. Breeze cassus, it may not replace short day photoperiod treatment where early flowering is desired.
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    User perceptions and acceptance of treated greywater reuse in low-income communities: a narrative review
    (IWA Publishing, 2023-11-01) Madzaramba, Tendai Hardwork; Zanamwe, Pesanai
    This research output established that a significant proportion of the global population lives in low-income communities mostly in the Global South. These communities face severe water scarcity and persistent sanitation challenges. It emerged that greywater reuse has the potential to improve the access to sufficient clean water in low-income communities. The study sought to ascertain user perceptions and acceptance of treated greywater reuse in low-income communities. To anchor this research, a comprehensive consultation of literature was done, and key sources of data were drawn from various secondary sources of data such as bibliographic databases. This was followed by the snowballing of obtained papers. The research employed a narrative review approach in methodology. The findings of this study indicate that people living in low-income communities have a positive perception regarding reusing treated greywater. Furthermore, it was established that the majority of persons living in low-income communities accept reuse for non-potable purposes including vegetable irrigation, laundry, toilet flushing, and car washing.