Effect of irrigation amount and frequency on phenology, vine length and biomass partitioning of wild cucumber (<i>Cucumis myriocarpus</i>) and wild watermelon (<i>Cucumis africanus</i>)

Nkgapele, R. J.; Mphosi, M. S.; Mashela, P. W.

doi:10.2495/wrm110491

Cited by 3 publications

(3 citation statements)

References 8 publications

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“…This could possibly mean that roots in plants watered twice a week with terminal water stress lost some water during period of no water supply. It has been reported that the more frequently watered Cucumis myriocarpus showed a higher root biomass compared to the less frequently watered plants [18]. Similarly, frequent irrigation (once every month, two months and three months) increased fresh bulb weight of Lycoris haywardii compared to less frequent irrigation (once every four months and six months), which decreased bulb weight by 21% and 52%, respectively [19].…”

Section: Yield Parametersmentioning

confidence: 99%

Stomatal Conductance, Growth and Yield of Pelargonium sidoides DC. in Response to Watering Frequency and Terminal Water Stress

Mofokeng¹,

Araya²,

Mashela³

et al. 2017

JAST-A

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Water is an important factor affecting growth, yield and distribution of different species. Plant response to water deficit can be in the form of physiological disorders, such as reduction in transpiration or assimilating partitioning to root growth. Sustainable use of water has become a priority in agriculture and thus innovative irrigation management practices are critical. The study aimed at investigating how watering frequency and terminal water stress influence growth of Pelargonium sidoides, an important medicinal plant in Southern Africa. The trial was a randomized complete block design with three replicates, and treatment factors were watering frequency (everyday, twice and once a week) and terminal water stress (no watering four weeks before harvesting, no watering two weeks before harvesting and no terminal stress). There was an interacting effect of watering frequency and terminal water stress on biomass and fresh root yield. More frequent watering resulted in significantly higher biomass and fresh root yield, compared to other treatments. Watering everyday with terminal or no terminal water stress resulted in higher fresh root yield, compared to other watering treatments with terminal water stress. Plant height and leaf area were significantly affected by watering frequency and terminal water stress, respectively. A significant drop in stomatal conductance of plants watered everyday was observed 240 d after treatment implementation, such that there was no significant difference across all the three watering frequency treatments. In conclusion, farmers can save on irrigation costs by reducing watering frequency, as there was no significant difference on dry root yield.

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Section: Yield Parametersmentioning

confidence: 99%

Stomatal Conductance, Growth and Yield of Pelargonium sidoides DC. in Response to Watering Frequency and Terminal Water Stress

Mofokeng¹,

Araya²,

Mashela³

et al. 2017

JAST-A

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show abstract

“…For example, they often supply most of the daily requirements for vitamins A, B complex and C of poor rural people [1]. To produce enough biomass of high quality which can be converted to leafy vegetable, animal feed and ethno-botanicals, there is need to identify C. myriocarpus production and agronomic management strategies with potential for high biomass yield and specific quality traits [2].…”

Section: Introductionmentioning

confidence: 99%

Biomass yield and partitioning of greenhouse grown indigenous cropCucumis myriocarpusin response to irrigation frequency and NPK fertilizer application rate

Nkgapele¹,

Mphosi²

2012

WIT Transactions on Ecology and the Environment

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A study was conducted during the 2009/10 summer growing season to determine the effect of varying irrigation frequencies and NPK fertilizer application rates on biomass yield and partitioning to plant fractions of Cucumis myriocarpus. The experiment was laid out in a split-plot design arrangement and replicated five times. Three irrigation frequencies, namely, 2, 4 and 6 day interval, were the main plots and sub-plot treatments were NPK fertilizer levels combined in a ratio 3:2:1 (60-40-20 kg NPK ha -1 , 120-80-40 kg NPK ha -1 and 180-120-60 kg NPK ha -1 ) and a control treatment of 0 Kg NPK ha -1 . Higher and lower total and plant fraction biomass yield were observed in the intermediate category of four day irrigation frequency, but varied among the different rates of NPK fertilizer rate. In conclusion, the results indicate that the plant can produce adequately under greenhouse conditions with moderate to limited water supply and provision of supplemental nutrients.

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“…In recent times, most human plant food is based on rather limited number of crops, 12 crops contribute more than 85-90% of world's caloric intake [1]. However, it is clear that in many parts of the world, especially in rural peripheries of developing regions, the use of wild plants is not negligible [2] and warrants greater need for research on crop responses to conventional agronomic methods of production such as integrated irrigation and fertilizer application [3].…”

Section: Introductionmentioning

confidence: 99%

Effect of irrigation frequency and NPK level on yield efficiency, resource use and harvest index of indigenous wild cucumberCucumis africanus

Nkgapele¹,

Mphosi²

2012

WIT Transactions on Ecology and the Environment

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In South African traditional medicine the roots, stems, leaves or fruit of wild cucumber, Cucumis africanus, are used as an emetic, purgative or enema for various ailments. The fresh young leaves are eaten as a pot herb by many rural people. A study was conducted to show the effects of irrigation frequency and NPK fertilizer application rate on leaf yield characters, harvest index and resource use efficiencies of C. africanus. The experiment was laid out in a splitplot design arrangement and replicated three times. Three irrigation frequencies, namely, 2, 4 and 6 days, were assigned as main plots and Nitrogen, Phosphorus and Potassium (NPK) application rates of 0 Kg NPK ha -1 , 60-40-20 kg NPK ha -1 , 120-80-40 kg NPK ha -1 and 180-120-60 kg NPK ha -1 were sub-plots. EYR, YER, AHI and SHI were significantly (P˂ 0.05) higher in the intermediate treatment of four day irrigation frequency and 120-80-60 kg NPK ha -1 , while WUE and NUE were pronounced in the six day irrigation frequency and 180-120-60 kg NPK ha -1 . WUE was significantly (P˂ 0.05) affected by both irrigation frequency and the interaction between irrigation frequency and NPK application rate, while NUE responded to NPK level only. Keywords: edible yield rate, yield efficiency rate, harvest index, water use efficiency.

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Effect of irrigation amount and frequency on phenology, vine length and biomass partitioning of wild cucumber (Cucumis myriocarpus) and wild watermelon (Cucumis africanus)

Cited by 3 publications

References 8 publications

Stomatal Conductance, Growth and Yield of Pelargonium sidoides DC. in Response to Watering Frequency and Terminal Water Stress

Stomatal Conductance, Growth and Yield of Pelargonium sidoides DC. in Response to Watering Frequency and Terminal Water Stress

Biomass yield and partitioning of greenhouse grown indigenous cropCucumis myriocarpusin response to irrigation frequency and NPK fertilizer application rate

Effect of irrigation frequency and NPK level on yield efficiency, resource use and harvest index of indigenous wild cucumberCucumis africanus

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