Path analysis of key morphological traits influencing dry shoot biomass in purslane (Portulaca oleracea)

Document Type : Original Article

Authors

1 Department of Plant Production and Genetics, Faculty of Agriculture, University of Maragheh, Maragheh, Iran

2 Department of Horticultural Science, Faculty of Agricultural Science and Natural Resources, University of Mohaghegh Ardabili, 7218759612, Ardabil, Iran

3 Department of Plant Production and Genetics, Faculty of Agriculture, University of Maragheh, 5518779842, Maragheh, Iran

4 Department of Horticultural Science, Faculty of Agricultural Science and Natural Resources, University of Mohaghegh Ardabili

Abstract

The current investigation aimed to evaluate the relationships between various morphological traits and dry shoot weight (DSW) in purslane (Portulaca oleracea), using path analysis to quantify both direct and indirect effects. A total of 20 local landraces of purslane were collected from different geographical regions across Iran. These plants were cultivated under controlled greenhouse conditions using a completely randomized design with four replications. A comprehensive set of morphological traits was measured, including leaf length (LL), main stem length (MSL), third internode diameter (TID), leaf area (LA), number of seeds per capsule (NSC), and leaf width (LW), among others. Correlation analysis showed significant positive relationships between DSW and several morphological traits, such as MSL, TID, LL, LW, LA, and NSC. Further path analysis identified leaf length (LL) and the length of the longest lateral branch (LLL) as the main determinants of DSW, with LL exerting the strongest positive direct effect. The indirect effect of LL through LLL was also significant. Notably, traits such as leaf width (LW) and main stem length (MSL) influenced DSW indirectly through their effects on LL and LLL, respectively. Multiple regression analysis supported the importance of these traits, identifying LL and LLL as the primary contributors to variation in DSW. These findings underscore the key role of morphological traits in biomass accumulation in purslane. The strong correlations and direct effects observed between these traits and DSW suggest that leaf characteristics and stem morphology are critical factors for improving purslane yield.

Keywords

References

Alam, A., Juraimi, A. S., Yusop, M. R., Hamid, A. A., & Hakim, A. (2014). Morpho-physiological and mineral nutrient characterization of 45 collected purslane (Portulaca oleracea L.) accessions. Bragantia. 73, 426–437.
Alam, M. A., Juraimi, A. S., Rafii, M. Y., Hamid, A. A., Aslani, F., & Hakim, M. A. (2016). Salinity-induced changes in the morphology and major mineral nutrient composition of purslane (Portulaca oleracea L.) accessions. Biological Research. 49, 1–19.
Carrascosa, A., Pascual, J. A., Ros, M., Petropoulos, S. A., & Alguacil, M. D. M. (2023). Agronomical practices and management for commercial cultivation of Portulaca oleracea as a crop: a review. Plants. 12(6), 1246.
Feizi-Kelasi, N. Fotokian M.H. (2020). Investigation of genetic diversity on M2 mutant lines of Purslane (Portulaca oleracea) derived through DMS mutagenes. Journal of Crop Breeding. 12(34), 105–114.
Ferrari, R. C., Cruz, B. C., Gastaldi, V. D., Storl, T., Ferrari, E. C., Boxall, S. F., ... & Freschi, L. (2020). Exploring C4–CAM plasticity within the Portulaca oleracea complex. Scientific Reports. 10(1), 14237.
Fischer, R. A., & Rebetzke, G. J. (2018). Indirect selection for potential yield in early-generation, spaced plantings of wheat and other small-grain cereals: a review. Crop and Pasture Science, 69(5), 439–459.
Hosseinzadeh, M. H., Ghalavand, A., Mashhadi-Akbar-Boojar, M., Modarres-Sanavy, S. A. M., & Mokhtassi-Bidgoli, A. (2020). Increased medicinal contents of purslane by nitrogen and arbuscular mycorrhiza under drought stress. Communications in Soil Science and Plant Analysis. 51(1), 118–135.
Inanloofar, M., Omidi, H., & Pazoki, A. R. (2013). Morphological, agronomical changes and oil content in purslane (Portulaca oleracea L.) under drought stress and biological/chemical fertilizer of nitrogen. Journal of Medicinal Plants. 12(48), 170–184.
Janmohammadi, M., Sabaghnia, N., & Nouraein, M. (2014). Path analysis of grain yield and yield components and some agronomic traits in bread wheat. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis. 62(5), 945-952.
Jia, S., Yan, Z., Wang, Y., Wei, Y., Xie, Z., & Zhang, F. (2017). Genetic diversity and relatedness among ornamental purslane (Portulaca L.) accessions unraveled by SRAP markers. 3 Biotech. 7(4), 241.
Jin, R., Shi, H., Han, C., Zhong, B., Wang, Q., & Chan, Z. (2015). Physiological changes of purslane (Portulaca oleracea L.) after progressive drought stress and rehydration. Scientia Horticulturae. 194, 215–221.
Karkanis, A. C., & Petropoulos, S. A. (2017). Physiological and growth responses of several genotypes of common purslane (Portulaca oleracea L.) under Mediterranean semi-arid conditions. Notulae Botanicae Horti Agrobotanici Cluj-Napoca. 45(2), 569–575.
Kumar, S., Kıso, A., & Asenla, L. (2022). Genetic variation, heritability, principal component analysis, correlation and path coefficient analysis in the fruit samples of Sechium edule (Jacq.) Sw. genotypes. Yuzuncu Yıl University Journal of Agricultural Sciences. 32(1), 164–174.
Mohamed, M. H., Ali, M. M. E., Zewail, R. M., Liava, V., & Petropoulos, S. A. (2024). The mitigating effects of biostimulant amendments on the response of purslane plants grown under drought stress conditions. Horticulturae. 10(8), 858.
Mohebodini, M., Khalili-Baseri, I., Farmanpour-Kalalagh, K., & Sabaghnia, N. (2024). Morphological characterization of some collected native purslane (Portulaca oleracea L.) genotypes. Contributii Botanice. (59), 7–20.
Naeem, M. Y., Jabran, K., Özden, M., & Bakhsh, A. (2022). Assessment of morphological and biochemical characteristics of common purslane (Portulaca oleracea L.) accessions. Pakistan Journal of Agricultural Sciences. 59(6), 1017–1028.
Petropoulos, S. A., Fernandes, Â., Dias, M. I., Vasilakoglou, I. B., Petrotos, K., Barros, L., & Ferreira, I. C. (2019). Nutritional value, chemical composition and cytotoxic properties of common purslane (Portulaca oleracea L.) in relation to harvesting stage and plant part. Antioxidants. 8(8), 293.
Petropoulos, S., Karkanis, A., Martins, N., & Ferreira, I. C. (2016). Phytochemical composition and bioactive compounds of common purslane (Portulaca oleracea L.) as affected by crop management practices. Trends in Food Science and Technology. 55, 1–10.
Ren S, Weeda S, Akande O, Guo Y, Rutto L, Mebrahtu T (2011). Drought tolerance and AFLP-based genetic diversity in purslane (Portulaca oleracea L.). Journal of Biotech Research. 3, 51–61.
Sabaghnia, N., & Janmohammadi, M. (2024). Path analysis of morphological traits influencing performance in Cicer arietinum genotypes under semi-arid conditions. Acta Biologica Szegediensis. 68(1), 1–8.
Sabaghnia, N., Mohebodini, M., Ebadi, A., & Janmohammadi, M. (2025). Correlation and path analysis of morphologic characters associated with yield performance in black cumin. Journal of Plant Biological Sciences. 16, 1–9.
Scheiner, & Callahan. (2000). Using path analysis to measure natural selection. Journal of Evolutionary Biology. 13(3), 423–433.
Srivastava, R., Srivastava, V., & Singh, A. (2023). Multipurpose benefits of an underexplored species purslane (Portulaca oleracea L.): A critical review. Environmental Management, 72(2), 309–320.
Zavoshti SA, Sabaghnia N, Moayed FN (2023) Correlation and path coefficient analyses of dry weight yield components in the common sainfoin (Onobrychis viciifolia Scop.). Journal of Agricultural Sciences (Belgrade), 68(2), 155–169.
Zhang, X., Dixon, M., & Liu, G. (2024). Purslane: The reigning champion of vitamins A and E among vegetables and a potential crop for home gardens: HS1484, 7/2024. EDIS. 4, 1–9.

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