Photosynthetic efficiency and chlorophyll fluorescence responses of Viola ignobilis Rupr. subjected to different biostimulants and two light intensities
Purpose: Viola ignobilis Rupr. is one of the important medicinal species which is in danger of extinction due to the over harvesting from the main habitats. Nowadays, domestication of medicinal plants in accordance with sustainable agricultural methods is a new important challenge. In this research,...
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University of Birjand
2025-06-01
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| Series: | Journal of Horticulture and Postharvest Research |
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| Online Access: | https://jhpr.birjand.ac.ir/article_3337_ec745503119680c543d515d716285f04.pdf |
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| author | Roshanak Ansari Khodayar Hemmati Sara Khorasaninejad Nahid Niari Khamsi |
| author_facet | Roshanak Ansari Khodayar Hemmati Sara Khorasaninejad Nahid Niari Khamsi |
| author_sort | Roshanak Ansari |
| collection | DOAJ |
| description | Purpose: Viola ignobilis Rupr. is one of the important medicinal species which is in danger of extinction due to the over harvesting from the main habitats. Nowadays, domestication of medicinal plants in accordance with sustainable agricultural methods is a new important challenge. In this research, we used biostimulants and optimization of light intensity as eco-friendly approaches to improve yield and photosynthetic efficiency of V. ignobilis Rupr. Research Method: The experiment was set up in a split plot arranged in a randomized complete block design with 3 replications. The main factor was two light levels (50% and 100% of full sunlight) and as sub factors plants were treated with animal derived protein hydrolysate (A.PH), vegetal derived protein hydrolysate (V.PH), seaweed extract (SE), the combination of A.PH + SE and V.PH + SE and also, water served as a control. Findings: Light intensities and biostimulant application significantly impacted the morphological parameters including fresh and dry weight of roots and shoots compared to control plants. Furthermore, the photosynthetic pigments did not differ significantly in two light intensities, but, biostimulant application considerably increased the photosynthetic pigments concentration. The obtained results indicated that the highest value of assimilation rate, transpiration rate and stomatal conductance, and also chlorophyll fluorescence parameters including the highest values of qP, Fv/Fm and (ФPSII) were connected to plants treated with A.PH + SE biostimulants under full irradiance. Research limitations: No limitations were found. Originality/Value: Optimizing light condition and combined use of PHs + SE biostimulants due to synergistic effects can improve crop yield and photosynthetic efficiency in violet, when no other sources of fertilizers are available. |
| format | Article |
| id | doaj-art-31d9544aa3a64bc09cfeff39b6c3e1a1 |
| institution | Kabale University |
| issn | 2588-4883 2588-6169 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | University of Birjand |
| record_format | Article |
| series | Journal of Horticulture and Postharvest Research |
| spelling | doaj-art-31d9544aa3a64bc09cfeff39b6c3e1a12025-08-20T03:44:35ZengUniversity of BirjandJournal of Horticulture and Postharvest Research2588-48832588-61692025-06-018Issue 221322810.22077/jhpr.2025.7980.14083337Photosynthetic efficiency and chlorophyll fluorescence responses of Viola ignobilis Rupr. subjected to different biostimulants and two light intensitiesRoshanak Ansari0Khodayar Hemmati1Sara Khorasaninejad2Nahid Niari Khamsi3Horticultural Sciences Department, Plant Production Faculty, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, IranHorticultural Sciences Department, Plant Production Faculty, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, IranHorticultural Sciences Department, Plant Production Faculty, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, IranDepartment of Agronomy and Plant Breeding, Faculty of Engineering, Islamic Azad University, Kermanshah branch, Kermanshah, IranPurpose: Viola ignobilis Rupr. is one of the important medicinal species which is in danger of extinction due to the over harvesting from the main habitats. Nowadays, domestication of medicinal plants in accordance with sustainable agricultural methods is a new important challenge. In this research, we used biostimulants and optimization of light intensity as eco-friendly approaches to improve yield and photosynthetic efficiency of V. ignobilis Rupr. Research Method: The experiment was set up in a split plot arranged in a randomized complete block design with 3 replications. The main factor was two light levels (50% and 100% of full sunlight) and as sub factors plants were treated with animal derived protein hydrolysate (A.PH), vegetal derived protein hydrolysate (V.PH), seaweed extract (SE), the combination of A.PH + SE and V.PH + SE and also, water served as a control. Findings: Light intensities and biostimulant application significantly impacted the morphological parameters including fresh and dry weight of roots and shoots compared to control plants. Furthermore, the photosynthetic pigments did not differ significantly in two light intensities, but, biostimulant application considerably increased the photosynthetic pigments concentration. The obtained results indicated that the highest value of assimilation rate, transpiration rate and stomatal conductance, and also chlorophyll fluorescence parameters including the highest values of qP, Fv/Fm and (ФPSII) were connected to plants treated with A.PH + SE biostimulants under full irradiance. Research limitations: No limitations were found. Originality/Value: Optimizing light condition and combined use of PHs + SE biostimulants due to synergistic effects can improve crop yield and photosynthetic efficiency in violet, when no other sources of fertilizers are available.https://jhpr.birjand.ac.ir/article_3337_ec745503119680c543d515d716285f04.pdfbiostimulantsphotosynthesissustainable agriculture |
| spellingShingle | Roshanak Ansari Khodayar Hemmati Sara Khorasaninejad Nahid Niari Khamsi Photosynthetic efficiency and chlorophyll fluorescence responses of Viola ignobilis Rupr. subjected to different biostimulants and two light intensities Journal of Horticulture and Postharvest Research biostimulants photosynthesis sustainable agriculture |
| title | Photosynthetic efficiency and chlorophyll fluorescence responses of Viola ignobilis Rupr. subjected to different biostimulants and two light intensities |
| title_full | Photosynthetic efficiency and chlorophyll fluorescence responses of Viola ignobilis Rupr. subjected to different biostimulants and two light intensities |
| title_fullStr | Photosynthetic efficiency and chlorophyll fluorescence responses of Viola ignobilis Rupr. subjected to different biostimulants and two light intensities |
| title_full_unstemmed | Photosynthetic efficiency and chlorophyll fluorescence responses of Viola ignobilis Rupr. subjected to different biostimulants and two light intensities |
| title_short | Photosynthetic efficiency and chlorophyll fluorescence responses of Viola ignobilis Rupr. subjected to different biostimulants and two light intensities |
| title_sort | photosynthetic efficiency and chlorophyll fluorescence responses of viola ignobilis rupr subjected to different biostimulants and two light intensities |
| topic | biostimulants photosynthesis sustainable agriculture |
| url | https://jhpr.birjand.ac.ir/article_3337_ec745503119680c543d515d716285f04.pdf |
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