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Plant Science Today (PST)

Research Articles

Vol. 13 No. 2 (2026)

Effect of foliar application of nano-boron and moringa leaf extract on growth and flowering of Catharanthus roseus L.

DOI
https://doi.org/10.14719/pst.14005
Submitted
5 February 2026
Published
06-05-2026 — Updated on 13-05-2026
Versions

Abstract

This study was carried out to determine the effect of nano-boron (B) at 3 levels (0, 5 and 10 mg L-1) and moringa leaf extract (M) ) at 4 levels (0, 2, 4 and 6 %) on the growth, flowering and chemical traits of Catharanthus roseus L. plants during the 2024 growing season in Lath house. Boron had a significant effect on all the traits studied, with the best results recorded under treatment B2 (10 mg L-1) which showed the highest values for plant height (37.27 cm), stem diameter (0.53 cm), leaves area (717.00 cm2 plant-1), number of flowers (60.48 flower plant-1), total of chlorophyll (1.41 mg g-1), total of carbohydrates (14.47 %), nitrogen (0.65 %), phosphorous (0.42 %) and potassium (1.93 %). On the other hand, the moringa leaf extract spraying treatments had a considerable effect on every traits that was examined; the 6 % treatment generated the greatest values for the following traits number of flowers (58.72 flower plant-1), total of chlorophyll (1.45 mg g-1), total of carbohydrates (14.46 %), nitrogen (0.67 %) and phosphorous (0.41 %). However, the 4 % treatment produced the greatest results for the traits plant height (35.93 cm), leaves area (721.23 cm2 plant-1) and potassium (1.90 %). While the 2 % treatment achieved the highest value of the diameter of the stem of 0.52 cm. Furthermore, the interaction between B and M resulted in significant differences in all the traits studied, notably with treatments (B2M2 and B2M3), which generated the highest values, while the control (B0M0) recorded the lowest values for most traits.

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