Effect of Spraying With Benzyl Adenine and Licorice Root Extract on Some Vegetative Growth Characteristics and Chemical Content of Strawberry (Fragaria Ananassa Duch) CV. Rubygem

Abstract

This study was conducted inside the plastic house of the Agricultural Research and Experiment Station of the Agriculture College - University of Kirkuk/Iraq, during the growing season 2020/2021. To study the effect of spraying the growth regulator of benzyl adenine in three concentrations (0, 30, 60) mg.L−1 and licorice root extract in three concentrations (0, 3000, 6000) mg.L−1 on some growth characteristics and chemical content of strawberry plants of Rubygem type. The obtained results were summarized that spraying with a concentration of 60 mg.L−1 of the growth regulator benzyl adenine BA led to a significant superiority in most growth characteristics and chemical content of strawberry plants (leaf area, leaves number, leaves area, dry matter in plant, leaf content of chlorophyll and nitrogen total) where reached (95.81 cm2, 15.78 leaf. plant−1, 1513.93 cm2, 38.68 %, 28.66 %, 3.24 %) respectively. While spraying with concentrations (30 and 60 mg.L−1)of benzyl adenine was significantly superior to the control treatment in the phosphorous and carbohydrates content of leaves. Spraying with a concentration of 6000 mg.L−1 of licorice extract significantly increased in most of the study traits (dry matter in plant, leaf content of chlorophyll, nitrogen, phosphorous and carbohydrates total) where reached (39.06 %, 25.69 mg.g−1, 3.09 %, 0.334 %, 3.38 %) respectively. Spraying with a concentration of 3000 mg.L−1 of licorice was significantly superior in the characteristics of leaf area and Leaves area, which reached (85.08, 1303.18) cm2 respectively.

Effect of Foliar Spraying with Licorice Extract and Adding Humic Acid to the Soil on the Yield of Apple Trees (Ibrahimi Cultivar) Malus Pumila

“…Licorice extract Spraying with licorice extract led to a significant increase in increasing the levels of spraying, and the reason for the increase in the number of fruits when spraying with licorice extract may be due to its effect on increasing the leafy area of the plant as a result of its containment of gibberellins and nutrients, which was positively reflected in the increase of manufactured compounds. by the leaves and then increasing the number of flowers, and the high content of the extract of carbohydrates and salts [12] This agrees with the results reached [13], also spraying licorice may increase the vegetative and root growth rates and thus increase the amount of water and nutrients absorbed from the soil and this may reduce precipitation Newly knotted flowers and fruits and increased the size of the fruit. Also, licorice has an effect similar to that of gibberellin, as it contains mevalonic acid, the precursor to gibberellin, which contributes to stimulating cell division and increasing their size.…”

Impact of mulching with sawdust, charcoal and spraying with growth regulator salicylic on some vegetative growth characteristics of two cultivars of grape vines (Halwani and Kamali)

“…All of this is reflected in an increase in the content of leaves of chlorophyll and other growth traits. These results are consistent with Hussein et al, (2019) [9] Hadidi and Shahwani (2020) [7] and Hussein and Al-Doori (2021) [10] . The increase in vegetative growth traits between varieties is due to genetic differences between the two varieties resulting from differences genetic factors controlling the size and shape of the leaf for each variety and its breadth.…”

Effect of Soil Mulching and Spraying with Growth Regulator Salicylic Acid on the Characteristics of the Mineral Content of Two Cultivars of Young Grape Vines (Halwani and Kamali)

“…When it evaporates, the level of elements in the leaves increases [9] which is reflected in an increase in the content of the leaves and stems of macronutrients and carbohydrates. These results are consistent with [25][26][27]. The Kamali variety outperformed the Halwani variety in terms of phosphorus in the leaves, potassium in the leaves, carbohydrates in the leaves, nitrogen in the cuttings, phosphorus in the cuttings, potassium in the cuttings, and carbohydrates in the cuttings Table (3,4,5,6,7,8,9) This is a genetic trait related to the variety and the genes responsible for those traits [28] while the Halwani variety was significantly superior to Al-Kamali in terms of nitrogen in the leaves Tables (3) This is attributed to the genetic variation of the studied varieties and their behavior in distributing different parts of the vine.…”