Genetic and physiological characterization of seed dormancy regulation in common waterhemp [Amaranthus tuberculatus (Moq) Sauer]

Leon-Gonzalez, Ramon G.

doi:10.31274/rtd-180817-72

Cited by 1 publication

(1 citation statement)

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“…The germination rate of the freshly collected E. villosa seeds was lower compared with that of seeds stored for one year because of the dormant nature of the freshly collected seeds [43]. This result agrees with that of Rodríguez et al [44] and is identical in other seeds, such as Amaranthus [45] and Arabidopsis thaliana [46], and other characteristics. As seeds age, cell membrane integrity is lost, and changes in membrane permeability are responded to by changes in conductivity; therefore, conductivity measurements have been used to indicate seed viability and are a basic method to detect seed longevity [24].…”

Section: Discussionsupporting

confidence: 82%

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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Section: Discussionsupporting

confidence: 82%