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<p>Fertilization plays a crucial role in enhancing pomegranate production; however, studies on the nutrient dynamics in pomegranate leaves and the influence of genotype-specific factors remain limited. This study investigated the nutrient content of leaves from a Moroccan ex-situ collection of pomegranate (<i>Punica granatum</i> L.) cultivars, focusing on both macro-elements (total nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), and magnesium (Mg)) and micronutrients (sodium (Na), iron (Fe), zinc (Zn), manganese (Mn), and copper (Cu)), and explored their correlation with potential fruit yield, vegetative traits, and fruit quality. The results revealed significant variations in leaf nutrient content among the pomegranate cultivars. Notably, ‘Zheri Precoce’ and ‘Godro de Jativa’ demonstrated the highest macronutrient levels, averaging 1.31% nitrogen, 0.35% phosphorus, and 0.74% potassium. In contrast, ‘Sefri’ and ‘Mollar Osin Hueso’ recorded the lowest values, with 0.77%, 0.23%, and 0.69% for nitrogen, phosphorus, and potassium, respectively. A strong positive correlation was found between the leaf nitrogen content and shoot length (<i>r</i> = 0.791), and fruit amino acid levels (<i>r</i> = 0.620). In addition, fruit cracking was significantly correlated with leaf calcium (<i>r</i> = 0.753), nitrogen (0.662), and potassium contents (<i>r</i> = 0.578). These findings suggest that leaf nutrient status can serve as a reliable indicator of fruit yield, vegetative growth, and biochemical quality. This research provides valuable insights into optimizing fertilization strategies for improved pomegranate production and highlights the importance of leaf nutrient composition in breeding and cultivation practices.</p>

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Genotypic variation in leaf nutrient dynamics and its impact on pomegranate yield and fruit quality

  • 期刊论文

  • 发表日期：

    2025年4月15日

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  • Atman Adiba,
  • Lahcen Hssaini,
  • Rachid Aboutayeb,
  • Abdellatif Boutagayout,
  • Rashid Iqbal,
  • Anas Hamdani,
  • Abdelmajid Haddioui,
  • Hassan Abd-dada,
  • Youssef Ait Bella,
  • Rachid Razouk

摘要

Fertilization plays a crucial role in enhancing pomegranate production; however, studies on the nutrient dynamics in pomegranate leaves and the influence of genotype-specific factors remain limited. This study investigated the nutrient content of leaves from a Moroccan ex-situ collection of pomegranate (Punica granatum L.) cultivars, focusing on both macro-elements (total nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), and magnesium (Mg)) and micronutrients (sodium (Na), iron (Fe), zinc (Zn), manganese (Mn), and copper (Cu)), and explored their correlation with potential fruit yield, vegetative traits, and fruit quality. The results revealed significant variations in leaf nutrient content among the pomegranate cultivars. Notably, ‘Zheri Precoce’ and ‘Godro de Jativa’ demonstrated the highest macronutrient levels, averaging 1.31% nitrogen, 0.35% phosphorus, and 0.74% potassium. In contrast, ‘Sefri’ and ‘Mollar Osin Hueso’ recorded the lowest values, with 0.77%, 0.23%, and 0.69% for nitrogen, phosphorus, and potassium, respectively. A strong positive correlation was found between the leaf nitrogen content and shoot length (r = 0.791), and fruit amino acid levels (r = 0.620). In addition, fruit cracking was significantly correlated with leaf calcium (r = 0.753), nitrogen (0.662), and potassium contents (r = 0.578). These findings suggest that leaf nutrient status can serve as a reliable indicator of fruit yield, vegetative growth, and biochemical quality. This research provides valuable insights into optimizing fertilization strategies for improved pomegranate production and highlights the importance of leaf nutrient composition in breeding and cultivation practices.