<p>The study examined the individual and combined effects of <i>Aloe Vera</i> Leaf Extract (ALE) (0, 2, and 4 ml L<sup>− 1</sup>) and Date Palm Seed Extract (PSE) (2 and 4&#xa0;g L<sup>− 1</sup>) on Cumin (<i>Cuminum cyminum</i> L.) growth, biochemical content/composition, nutrient content/composition, and essential oil profiles. Application of ALE 4 ml L<sup>− 1</sup> and PSE 2&#xa0;g L<sup>− 1</sup> as foliar treatments improved the characteristics of reproductive development by increasing seed inflorescence weight and diameter by 122.84% and 58.32%, respectively, compared to the control. Spraying ALE (4 ml L<sup>− 1</sup>), PSE (4&#xa0;g L<sup>− 1</sup>) + ALE (4 ml L<sup>− 1</sup>) + PSE (2&#xa0;g L<sup>− 1</sup>) on foliage resulted in an increase of 8.33% in number of flowers per plant and 51.31% increase in total yield/plant. Total phenolic content increased by 10.40%, 8.50% and 8.76% with PSE 2&#xa0;g L<sup>− 1</sup>, PSE 4&#xa0;g L<sup>− 1</sup> and ALE 2 ml L<sup>− 1</sup> compared to the control, respectively. ALE at a concentration of 2 ml L<sup>− 1</sup> significantly increased the total flavonoid content by 115.59% compared to the control. Carbohydrate content of seeds and leaves increased significantly by 30.27% and 102.55% with ALE 2 ml L<sup>− 1</sup> compared to the control, respectively. The ALE 4 ml L<sup>− 1</sup> treatment resulted in a 166.66% increase in sulfur, while the ALE 4 ml L<sup>− 1</sup> + PSE 4&#xa0;g L<sup>− 1</sup> combination resulted in a 0.239% phosphorus content compared to the control. There were 4 total compounds that were identified from both the 4&#xa0;ml L-1 ALE treatment and the 4&#xa0;g L-1 PSE treatment, 1,3-benzodioxole, 4,5-dimethoxy-6-(2-propenyl)-, carvone, D-limonene. These studies suggest that both ALE and PSE can enhance the growth of plants, yield from their harvest, physicochemical properties, and phytochemical profiles; Therefore, enhancing the growth and development of plants through a more sustainable approach to enhance their production and increasing bioactive compound production will be achieved by using environmentally friendly, low-input chemicals such as ALE and PSE.</p>

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Foliar application of Aloe vera and date palm extracts as natural biostimulants enhances yield, nutrient status and essential oil of cumin (Cuminum cyminum L.)

  • Fatimah Ali Hasan,
  • Wurood Hantoosh Neamah,
  • Widad A. Abd Al-Behadili,
  • Ola Adnan Faeaz,
  • Ayat Hussein Majeed,
  • Heidar Meftahizade

摘要

The study examined the individual and combined effects of Aloe Vera Leaf Extract (ALE) (0, 2, and 4 ml L− 1) and Date Palm Seed Extract (PSE) (2 and 4 g L− 1) on Cumin (Cuminum cyminum L.) growth, biochemical content/composition, nutrient content/composition, and essential oil profiles. Application of ALE 4 ml L− 1 and PSE 2 g L− 1 as foliar treatments improved the characteristics of reproductive development by increasing seed inflorescence weight and diameter by 122.84% and 58.32%, respectively, compared to the control. Spraying ALE (4 ml L− 1), PSE (4 g L− 1) + ALE (4 ml L− 1) + PSE (2 g L− 1) on foliage resulted in an increase of 8.33% in number of flowers per plant and 51.31% increase in total yield/plant. Total phenolic content increased by 10.40%, 8.50% and 8.76% with PSE 2 g L− 1, PSE 4 g L− 1 and ALE 2 ml L− 1 compared to the control, respectively. ALE at a concentration of 2 ml L− 1 significantly increased the total flavonoid content by 115.59% compared to the control. Carbohydrate content of seeds and leaves increased significantly by 30.27% and 102.55% with ALE 2 ml L− 1 compared to the control, respectively. The ALE 4 ml L− 1 treatment resulted in a 166.66% increase in sulfur, while the ALE 4 ml L− 1 + PSE 4 g L− 1 combination resulted in a 0.239% phosphorus content compared to the control. There were 4 total compounds that were identified from both the 4 ml L-1 ALE treatment and the 4 g L-1 PSE treatment, 1,3-benzodioxole, 4,5-dimethoxy-6-(2-propenyl)-, carvone, D-limonene. These studies suggest that both ALE and PSE can enhance the growth of plants, yield from their harvest, physicochemical properties, and phytochemical profiles; Therefore, enhancing the growth and development of plants through a more sustainable approach to enhance their production and increasing bioactive compound production will be achieved by using environmentally friendly, low-input chemicals such as ALE and PSE.