Abstract
The seed germination of Capsicum frutescens L. was investigated through various methods, namely, washing and air dry storage treatments, applications of gibberelic acid (GA3), Kinetin, potassium nitrite (KNO2) and potassium nitrate (KNO3) to improve germination of seeds in view of poor germination reported. The seeds were subjected to the following treatments namely washing to remove the slimy coverings; air-drying at various time-intervals; incubated in different concentrations of GA3, Kinetin, KNO2 and KNO3. The treatments were subjected to light or dark germinations at 300C and radicle emergence scored after 15days. The various results showed that washing treatment, and light germination had a significant effect on the germination of Capsicum frutescens seeds. For air-drying treatment, germination increased from 0-48hrs and decreased after 72hrs, 48hrs air-drying duration gave the highest percentage germination. Application of GA3, kinetin, KNO2 and KNO3 in low concentrations promoted the germination of freshly harvested Capsicum frutescens seeds. Generally the KNO2 and KNO3 gave the best germination results. The findings of this study have significant implications in the commercial production of Capsicum frutescens in view of its economic and medicinal importance.Keywords: Growth regulators, Nitrogenous compounds, Capsicum frutescens
Highlights
MATERIALS AND METHODSSource of Seeds: The matured fruits of Capsium frutescens seeds were harvested from Agricultural Development Programme (ADP) Rumuodomaya, Rivers State
The genus Capsicum frutescens comprises more than 200 varieties, and the fruits vary widely in size, shape, flavour and sensory heat
Five main species are cited in literature: Capsicum annum, Capsicum baccatum, Capsicum chinense, Capsicum frutescens and Capsicum pubescens
Summary
Source of Seeds: The matured fruits of Capsium frutescens seeds were harvested from Agricultural Development Programme (ADP) Rumuodomaya, Rivers State. The hydrogen molecules so released reduced the oxidized colourless form of TTC to formazan-red colour. The embryonic sections of the seeds were coloured formazan red, indicating viability and were used for the experiment. Seeds were subsequently germinated at required temperature. The objective of such treatment was to find out if germination increases or decreases with dry storage period. Gibberellic Acid and Kinetin Treatments: The effect of gibberellic acid and kinetin on the germination of Capsicum frutescens was investigated. KNO3 and KNO2 Treatment: The effects of potassium nitrate and potassium nitrite on the germination of Capsicum frutescens were investigated. The different effects of concentrations, namely 101mg/I, 505mg/l and 1010mg/l of potassium nitrate (KNO3) and 85mg/l, 425mg/l and 850mg/l of potassium nitrite (KNO2) were examined. New Duncan Multiple Range Test (NDMRT) was employed to separate means
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