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Chitosan Improves Morphological and Physiological Attributes of Grapevines Under Deficit Irrigation Conditions

Hoda Ali Khalil

Hoda Ali Khalil

Department of Pomology, Faculty of Agriculture (EL-Shatby),, Alexandria UniversityAlexandria, Egypt
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Khalil, Hoda Ali
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Rasha M. Badr Eldin

Rasha M. Badr Eldin

Department of Soil and Water Sciences, Faculty of Agriculture (EL-Shatby), Alexandria UniversityAlexandria, Egypt
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Badr Eldin, Rasha M.
  
Apr 01, 2021
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Published Online: Apr 01, 2021
Page range: 9 - 22
Received: Jul 01, 2020
Accepted: Feb 01, 2021
DOI: https://doi.org/10.2478/johr-2021-0003
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© 2021 Hoda Ali Khalil et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Figure 1

Effect of foliar application of chitosan and irrigation levels on leaf area, trunk cross-sectional area (TCA), total dry weight and root dry weight of grapevines ‘Crimson’. Means followed by different lowercase letters indicate significant differences between treatments based on LSD test (p = 0.05)
Effect of foliar application of chitosan and irrigation levels on leaf area, trunk cross-sectional area (TCA), total dry weight and root dry weight of grapevines ‘Crimson’. Means followed by different lowercase letters indicate significant differences between treatments based on LSD test (p = 0.05)

Figure 2

Effect of foliar application of chitosan and irrigation levels on relative chlorophyll content, proline content, leaf total carbohydrates, and leaf catalase activity. Means followed by different lowercase letters indicate significant differences between treatments based on LSD test (p = 0.05)
Effect of foliar application of chitosan and irrigation levels on relative chlorophyll content, proline content, leaf total carbohydrates, and leaf catalase activity. Means followed by different lowercase letters indicate significant differences between treatments based on LSD test (p = 0.05)

Figure 3

Effect of foliar application of chitosan and irrigation levels on leaf water potential and relative water content. Means followed by different lowercase letters indicate significant differences between treatments based on LSD test (p = 0.05)
Effect of foliar application of chitosan and irrigation levels on leaf water potential and relative water content. Means followed by different lowercase letters indicate significant differences between treatments based on LSD test (p = 0.05)

Figure 4

The effect of irrigation levels and chitosan treatments on the evapotranspiration (mL per day) during four months of drought and chitosan treatments of grapevines in 2017. Values are mean ± S.E. (n = 16). Irrigation levels: A = 100% of field capacity, B = 60% of field capacity, C = 40% of field capacity
The effect of irrigation levels and chitosan treatments on the evapotranspiration (mL per day) during four months of drought and chitosan treatments of grapevines in 2017. Values are mean ± S.E. (n = 16). Irrigation levels: A = 100% of field capacity, B = 60% of field capacity, C = 40% of field capacity

Figure 5

The effect of irrigation levels and chitosan treatments on the evapotranspiration (mL per day) during four months of drought and chitosan treatments of grapevines in 2018. Values are mean ± S.E. (n = 16). Irrigation levels: A = 100% of field capacity, B = 60% of field capacity, C = 40% of field capacity
The effect of irrigation levels and chitosan treatments on the evapotranspiration (mL per day) during four months of drought and chitosan treatments of grapevines in 2018. Values are mean ± S.E. (n = 16). Irrigation levels: A = 100% of field capacity, B = 60% of field capacity, C = 40% of field capacity
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English
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Life Sciences, Biotechnology, Plant Science, Ecology, Life Sciences, other
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