Seed Germination of Three Milk Thistle (Silybum marianum (L.) Gaertn.) Populations of Greek Origin: Temperature, Duration, and Storage Conditions Effects

Liava, Vasiliki; Ntatsi, Georgia; Karkanis, Anestis

doi:10.3390/plants12051025

Cited by 7 publications

(5 citation statements)

References 47 publications

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“…[119], downy brome (Bromus tectorum L.) [120], capeweed (Arctotheca calendula (L.) K. Lewin) [121], night-flowering catchfly (Silene noctiflora L.) [6], and milk thistle (Silybum marianum (L.) Gaertn.) [122]. In some cases, however, dry storage decreases germination percentage, as was shown for sea oats (Uniola paniculate L.) [123], European hazelnut (Corylus avellana L.) [124], and snow gum (Eucalyptus pauciflora Sieber ex Spreng.)…”

Section: The Effects Of Post-dispersal Factors On Seed Dormancy: Afte...mentioning

confidence: 86%

Environmental Regulation of Weed Seed Dormancy and Germination

Qaderi

2023

Seeds

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Many weeds produce dormant seeds that are unable to complete germination under favourable conditions. There are two types of seed dormancy: primary dormancy (innate dormancy), in which seeds are in a dormant state upon release from the parent plant, and secondary dormancy (induced dormancy), in which dormancy develops in seeds through some experience after release from the parent plant. Mechanisms of seed dormancy are categorized as embryo dormancy and coat-imposed dormancy. In embryo dormancy, the control of dormancy resides within the embryo itself, and in coat-imposed dormancy, it is maintained by the structures enclosing the embryo. Many factors can influence seed dormancy during development and after dispersal; they can be abiotic, biotic, or a combination of both. Most weeds deposit a large number of seeds in the seed bank, which can be one of two types—transient or persistent. In the transient type, all viable seeds in the soil germinate or die within one year, and there is no carry-over until a new crop is deposited. In the persistent type, at least some seeds survive in the soil for more than one year and there is always some carry-over until a new crop is deposited. Some dormant seeds require after-ripening—changes in dry seeds that cause or improve germination. Nondormant, viable seeds can germinate if they encounter appropriate conditions. In the face of climate change, including global warming, some weeds produce a large proportion of nondormant seeds, which germinate shortly after dispersal, and a smaller, more transient seed bank. Further studies are required to explore this phenomenon.

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Section: The Effects Of Post-dispersal Factors On Seed Dormancy: Afte...mentioning

confidence: 86%

Environmental Regulation of Weed Seed Dormancy and Germination

Qaderi

2023

Seeds

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“…Seed longevity decreases with storage [37] and can usually be judged by the color of the seed coat, which loses its luster, while the germination potential, germination rate, and germination index also decrease when seeds are stored for a long time [38,39]. In this study, we found that the germination potential, germination rate, and germination index of E. villosa seeds decreased significantly during eight years of storage, and the determination of E. villosa seed vigor by the TTC method was consistent with germination test results.…”

Section: Discussionmentioning

confidence: 99%

Storage Time Affects the Viability, Longevity, and Germination of Eriochloa villosa (Thunb.) Kunth Seeds

et al. 2023

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The effects of storage time on Eriochloa villosa (Thunb.) Kunth seed longevity and germination were investigated. A number of physiological and biochemical indexes, such as germination indexes, seed viability, storage materials, superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), and α-amylase (AMS) activity, were determined to investigate the mechanisms behind E. villosa seed longevity. The longevity of E. villosa seeds under indoor dry storage conditions was more than eight years. The vitality of E. villosa seeds decreased dramatically with increasing storage time. The malondialdehyde (MDA) concentration of the seeds increased dramatically with an increase in the storage period. The SOD, POD, CAT, and AMS activities significantly decreased over time, while the soluble sugar content first increased and then decreased. Storage duration significantly affected the soluble protein content of E. villosa seeds. The germination index of the seeds correlated with their physiological and biochemical indices and showed a significant positive correlation with the soluble sugar content, SOD, POD, and AMS activity, and a significant negative correlation with the MDA concentration. This study is of great importance for understanding the characteristics of the field seed bank of E. villosa and for implementing integrated weed control measures to contribute to sustainable agricultural development.

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“…MGT = ∑ (ni × di)/N, where ni—number of seeds germinated a day, N—total number of germinated seeds at the end of experiment 44 .…”

Section: Methodsmentioning

confidence: 99%

Pre-treatment of Cucurbita maxima ‘Hokkaido orange’ by Viscum album aqueous extracts in search of allelopathic potential

Strashok,

Ziemiańska,

Czaplicka

et al. 2024

Sci Rep

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Viscum album L. (VA) is a unique plant with regard to its biological content. It is rich in many different metabolites with high potential in various spheres of human activity. We conducted a pilot study with 5 VA aqueous extracts of different host-tree species for pre-sowing treatment of Cucurbita maxima ‘Hokkaido orange’ seeds. We set the following objectives consisting of hypotheses (1) H01 is based on different effects of tested VA extracts depending on host trees and time of pre-treatment; (2) H02 focuses on the allopathic properties of the tested extracts affecting the plant growth and development by dose–response relationship; (3) A01 considers highly biologically active compounds of VA extracts also containing allelochemicals that can be used to regulate plant growth processes and create eco-friendly and resilient cities. The analysis of the stimulatory allelopathy index for 7 parameters demonstrates the direct effect of VA extracts in 62.3% of cases. The variability of the broad spectrum of effects of VA extracts of different host trees on the ontogenesis of C. maxima plants shows the presence of potential allelochemicals, resulting from the vital products of the host-parasite relationship. These effects are not fully explained by total polyphenol content and antioxidant activity as in previous studies of other mistletoe species. The authors consider this work a pilot study that expands the areas of application of VA extracts and knowledge about potential sources of allelochemicals.

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Seed Germination of Three Milk Thistle (Silybum marianum (L.) Gaertn.) Populations of Greek Origin: Temperature, Duration, and Storage Conditions Effects

Cited by 7 publications

References 47 publications

Environmental Regulation of Weed Seed Dormancy and Germination

Environmental Regulation of Weed Seed Dormancy and Germination

Storage Time Affects the Viability, Longevity, and Germination of Eriochloa villosa (Thunb.) Kunth Seeds

Pre-treatment of Cucurbita maxima ‘Hokkaido orange’ by Viscum album aqueous extracts in search of allelopathic potential

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