Onion (Allium cepa L.) seed germination affected by temperature and water potential: Hydrothermal time model

Moradi-Shakoorian, Zahrabeigom; Delshad, Mojtaba; Dı́az-Pérez, Juan Carlos; Askari-Sarcheshmeh, M.A.; Nambeesan, Savithri U.; Mamedi, Arash

doi:10.1016/j.jarmap.2023.100495

Cited by 2 publications

(1 citation statement)

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“…Germination of Parthenium seeds was inhibited at lower level of osmotic stress (Table 4); no germination was recorded with further lowering the osmotic potential. According to Bradford [17] seed germination is a process of growth of a previously quiescent or dormant seed starting with the imbibition of water. Seed imbibition rate and germination level normally decreases as the surrounding water potential decreases, the critical hydration level for seed germination is species-specific [18].…”

Section: Effect Of Osmotic Potentialmentioning

confidence: 99%

Growth Behavior of Parthenium hysterophorus as Influenced by Environmental Factors

Malik¹,

Singh²,

Pooja³

et al. 2023

IJECC

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Parthenium hysterophorus is a prime noxious weed across the world and resorting its nativity weed to Tropical North and South America which has invaded more than 50 countries throughout the world. It was accidentally introduced in India with food-grains imported from Mexico. Parthenium plant contains chemicals, like parthenin, hysterin, hymenin, and ambrosin, and due to the presence of these chemicals, the weed exerts strong allelopathic effects on different crops. Parthenin has been reported as a germination inhibitor as well as radical growth inhibitor in a variety of dicot and monocot plants. Because of its strong competitiveness for soil moisture, space and nutrients with crops and its allergenic properties, it poses serious threat to cereal crops and livestock. Parthenium is difficult to control because of its wider adaptation to diverse climatic conditions. The aim of this research article is to explore effect of environmental factors on germination, shoot and root length of Parthenium hysterophorus. The effect of light periods, temperature, pH, osmotic potential and salt stress on germination, shoot and root length of parthenium was studied and found that maximum germination at 16 h (57%), 25°C (81%), pH 7 (98%), 0 MPa (85%) and 0 mM NaCl (84%), respectively and same trend was followed in shoot and root length. Therefore, the understanding of growth behavior of parthenium will help in formulating better management practices for the same.

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Section: Effect Of Osmotic Potentialmentioning

confidence: 99%