Pruning intensity and amino acids tryptophan and glycine on growth and flowering of Jasminum sambac

Abstract

Jasmine (Jasminum sambac L.) is an evergreen shrub and very fragrant, which has a very importance in the perfume industry and its flowers are used in different religious and ceremonies. Training the shrubs for more yields of flowers and essential oil with horticultural improvement effects of pruning and amino acids may help gardeners to achieve more benefits. This study aimed to investigate the effects of pruning intensity (without pruning, 40, 60 or 75 cm above ground level) and foliar application of amino acids (without amino acids, tryptophan or glycine) on jasmine shrubs for promoting growth and reproductive growth and the content of essential oil. The results showed that plants with light pruning (75 cm) and foliar application of amino acids especially glycine had the best growth and yield, which means that plants were affected by the interactions of pruning level and application of amino acids.

The Influence of Combined Pruning and the Use of Root Application of Two Biostimulants and Foliar Nutrition on the Growth and Flowering of Panicle Hydrangea Plants

“…However, this simple procedure is not popular in the cultivation of ornamental plants because it is not known how it will affect specific species. Current scientific studies indicate that pruning may disturb the balance between vegetative and generative growth of plants [7]. When shoots are pruned, more dormant buds are activated, resulting in a greater leaf area and dry weight of plants [8][9][10].…”