Revealing drought tolerance strategies in pistachio clonal hybrids: role of osmotic adjustment DOI Creative Commons

Mozhdeh Osku,

Mahmoud Reza Roozban, Saadat Sarikhani

et al.

BMC Plant Biology, Journal Year: 2025, Volume and Issue: 25(1)

Published: May 2, 2025

Pistachio (Pistacia vera L.) growth, yield and quality are affected by abiotic stress especially drought. Understanding the strategies that improve dehydration tolerance is essential for developing resistant pistachio rootstocks. In experiment, nine-month-old saplings of seven clonal interspecies hybrids Pistacia atlantica × P. integerrima (C1, C2, C16-1, C8-3, C4-2, C9-4 UCB1) were assessed growth physiological responses to water withholding recovery. Water deficit negatively impacted parameters, including shoot dry weight, root weight leaf area, in all hybrids; however, C1 demonstrated relatively minor reductions compared other hybrids. Glycine betaine content leaves increased 49.4% 47% C1, while only 7% 11% increases found most sensitive clones, C8-3 C4-2. Notably, C9-4, identified as tolerant clone, displayed highest proline levels, with 29.5% 41.5% roots, contrast which showed minimal 6% respectively. Clones higher compatible solutes maintained relative (RWC), lower osmotic potential smaller potential. RWC declined just whereas it dropped 88% C8-3. Osmotic potentials - 1.61 MPa 0.271 they 0.93 0.11 Following recovery, evaluations traits visual observations indicated had poor recovery ability. Heatmap PCA analyses categorized clones into three groups: "tolerant" (C9-4, C2), "moderately tolerant" (UCB1) "sensitive" (C8-3, C4-2 C16-1). The results this study underscore significance adjustment a more critical trait stomatal parameters effectively differentiating from ones.

Language: Английский

Revealing drought tolerance strategies in pistachio clonal hybrids: role of osmotic adjustment DOI Creative Commons

Mozhdeh Osku,

Mahmoud Reza Roozban, Saadat Sarikhani

et al.

BMC Plant Biology, Journal Year: 2025, Volume and Issue: 25(1)

Published: May 2, 2025

Pistachio (Pistacia vera L.) growth, yield and quality are affected by abiotic stress especially drought. Understanding the strategies that improve dehydration tolerance is essential for developing resistant pistachio rootstocks. In experiment, nine-month-old saplings of seven clonal interspecies hybrids Pistacia atlantica × P. integerrima (C1, C2, C16-1, C8-3, C4-2, C9-4 UCB1) were assessed growth physiological responses to water withholding recovery. Water deficit negatively impacted parameters, including shoot dry weight, root weight leaf area, in all hybrids; however, C1 demonstrated relatively minor reductions compared other hybrids. Glycine betaine content leaves increased 49.4% 47% C1, while only 7% 11% increases found most sensitive clones, C8-3 C4-2. Notably, C9-4, identified as tolerant clone, displayed highest proline levels, with 29.5% 41.5% roots, contrast which showed minimal 6% respectively. Clones higher compatible solutes maintained relative (RWC), lower osmotic potential smaller potential. RWC declined just whereas it dropped 88% C8-3. Osmotic potentials - 1.61 MPa 0.271 they 0.93 0.11 Following recovery, evaluations traits visual observations indicated had poor recovery ability. Heatmap PCA analyses categorized clones into three groups: "tolerant" (C9-4, C2), "moderately tolerant" (UCB1) "sensitive" (C8-3, C4-2 C16-1). The results this study underscore significance adjustment a more critical trait stomatal parameters effectively differentiating from ones.

Language: Английский

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