Eine morphometrische Untersuchung von autochtonen Pflaumen-Genotypen mit Hilfe der multivariaten Analyse

Abstract

Zusammenfassung Der Iran ist einer der wichtigsten Pflaumenproduzenten der Welt. Diese Untersuchung wurde durchgeführt, um die agrar-morphologischen Eigenschaften von 100 Pflaumen-Genotypen im Iran zu vergleichen. Die Ergebnisse zeigten statistisch signifikante Unterschiede zwischen diesen Genotypen. Die Blattgröße, die Fruchtform, das spezifische Gewicht der Frucht, die Fruchtfarbe und die Fruchtfleischfestigkeit zeigten die größte relative Variationsbreite. Die Blütezeit erstreckte sich vom 25. März bis zum 5. April und die Reifezeit von Ende Juli bis Anfang August. Es gab eine enge positive Korrelation zwischen dem Fruchtgewicht und der Fruchtgröße und zwischen dem Fruchtgewicht und der Blattgröße. Die Hauptkomponentenanalyse zeigte eine hohe Erkennungssicherheit bei den gemessenen Variablen. Die meisten dieser Variablen bildeten Eigenschaften ab, die sich auf Fruchtund Blattgröße bezogen. Die Clusteranalyse gruppierte die untersuchten Genotypen in zwei Haupt-Cluster und mehrere Sub-Cluster. Es kann daraus gefolgert werden, dass das Fruchtgewicht, die Fruchtfarbe und die Fruchtfleischfestigkeit sehr wichtige Eigenschaften sind und vom Anbauer als erste Parameter beim Auswahlprozess angesehen werden. Die Ergebnisse dieser Untersuchung können hilfreich sein, die biologische Vielfalt autochthoner Genotypen zu erfassen, um die Genressourcen in situ und ex situ nach einem Leitfaden genau zu beschreiben.Schlüsselwörter Pflaume · Phänotypisches Erscheinungsbild · Agrar-morphologische Variablen · Multivariable Analyse · Genressource Abstract Iran is one of the most important plum producers in the world. The present study was conducted to compare agro-morphological characteristics of 100 traditional plum genotypes in Iran. The results showed statistically significant differences between the studied genotypes and leaf dimensions, fruit shape, fruit density, fruit color and fruit flesh firmness showed the highest relative range of variation. Flowering time was extended from 25 March to 5 April and fruit ripening from late July to early August. There were high positive correlations between fruit weight and fruit dimensions and between fruit weight and leaf dimensions. Principal component analysis showed high discrimination capabilities of variables measured. Most of these variables were characters linked to fruit and leaf size. Cluster analysis grouped the studied genotypes into two main clusters with several sub-clusters. In can be concluded that fruit weight, fruit color and fruit flesh firmness are very important characteristics and probably are the first characters to be considered in a farmers selection process. The results of the current study provided information which may be useful for determining the biodiversity of autochthonous genotypes, for the purposes of obtaining guidelines in determining in situ and ex situ germplasm characterization.

Morphological variability of indigenous cherry plum (Prunus divaricata Ledeb.) accessions

“…Fruit weight was positively correlated with fruit length (r r r fruit stalk length (r r width (r r r leaf width (r r ing the previous results in plum (Milosevic and Milosevic, 2012;Khadivi-Khub and Barazandeh, 2015;Khadivi et al, 2020;Mirheidari et al, 2020). Fruit length was positively correlated with fruit width (r (r r r stone weight (r sults in plum (Milosevic and Milosevic, 2012;Khadivi-Khub and Barazandeh, 2015;Khadivi et al, 2020;. Stone length was positively correlated with stone width (r r r leaf width (r r with the previous results in plum (Milosevic and Milosevic, 2012;Khadivi-Khub and Barazandeh, 2015;Khadivi et al, 2020;Mirheidari et al, 2020).…”

“…Correlations among the measured characters -acters and several negative correlations (data not shown). Fruit weight was positively correlated with fruit length (r r r fruit stalk length (r r width (r r r leaf width (r r ing the previous results in plum (Milosevic and Milosevic, 2012;Khadivi-Khub and Barazandeh, 2015;Khadivi et al, 2020;Mirheidari et al, 2020). Fruit length was positively correlated with fruit width (r (r r r stone weight (r sults in plum (Milosevic and Milosevic, 2012;Khadivi-Khub and Barazandeh, 2015;Khadivi et al, 2020;.…”

“…Higher CV values denote increased variation and render those traits optimal for use in selections (Mohammadi and Prasanna, 2003). Khadivi-Khub and Barazandeh (2015) studied cultivated plums belonging to P. domestica and showed high diversity. revealing abundant variation among the studied accessions.…”

“…Some phenotypic varial., 2018). High variation in phenological and fruit traits has been observed in plum cultivars from different parts of the world (Nikolic et al, 2007;Horvath et al, 2011;Khadivi-Khub and Barazandeh, 2015;Khadivi et al, 2020). Leaf, the primary morphological traits for characterization of in- and Milosevic, 2012).…”

Do Grapholita funebrana Infestation Rely on Specific Plum Fruit Features?

“…Due to the economic and social importance of plum production, several studies evaluated new varieties adapted to regional climatic conditions, displaying resistance or tolerance to abiotic and biotic stresses (among them diseases and pests), improved fruit quantity, and overall quality [1,3,[9][10][11][12][13]. Nevertheless, a detailed examination on the discrimination of cultivars is lacking, as prior studies have been often carried out at regional level or regarded specific quality parameters [14][15][16][17][18]. An evaluation The research was performed in two Sicilian plum orchards located at San Giuseppe Jato, Italy (37 • 59 36" N, 13 • 13 29" E and 37 • 59 42" N, 13 • 12 20" E, respectively).…”