Optimal conditions for hydropriming lucerne seeds

Liu, Huixia; Zheng, Guo; Wang, Yan Rong

doi:10.1080/00288230809510436

Cited by 6 publications

(9 citation statements)

References 15 publications

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“…Because the seeds were soaked in water, it is possible that both water and ultrasound were important during the ultrasound treatment. The effect of water on seeds has been reported [32] – [34] . Soaking seeds in water before sowing and drying after soaking, which is called hydropriming, is a simple method to enhance seed germination and seedling emergence.…”

Section: Discussionmentioning

confidence: 99%

Modeling Analysis on Germination and Seedling Growth Using Ultrasound Seed Pretreatment in Switchgrass

et al. 2012

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Switchgrass is a perennial C4 plant with great potential as a bioenergy source and, thus, a high demand for establishment from seed. This research investigated the effects of ultrasound treatment on germination and seedling growth in switchgrass. Using an orthogonal matrix design, conditions for the ultrasound pretreatment in switchgrass seed, including sonication time (factor A), sonication temperature (factor B) and ultrasound output power (factor C), were optimized for germinating and stimulating seedling growth (indicated as plumular and radicular lengths) through modeling analysis. The results indicate that sonication temperature (B) was the most effective factor for germination, whereas output power (C) had the largest effect on seedling growth when ultrasound treatment was used. Combined with the analyses of range, variance and models, the final optimal ultrasonic treatment conditions were sonication for 22.5 min at 39.7°C and at an output power of 348 W, which provided the greatest germination percentage and best seedling growth. For this study, the orthogonal matrix design was an efficient method for optimizing the conditions of ultrasound seed treatment on switchgrass. The electrical conductivity of seed leachates in three experimental groups (control, soaked in water only, and ultrasound treatment) was determined to investigate the effects of ultrasound on seeds and eliminate the effect of water in the ultrasound treatments. The results showed that the electrical conductivity of seed leachates during either ultrasound treatment or water bath treatment was significantly higher than that of the control, and that the ultrasound treatment had positive effects on switchgrass seeds.

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Section: Discussionmentioning

confidence: 99%

Modeling Analysis on Germination and Seedling Growth Using Ultrasound Seed Pretreatment in Switchgrass

et al. 2012

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“…The slight increase in  b (50) in our study may be partially attributed to the relatively high water potential during priming. A further reduction of ambient water potential during hydropriming could be a key issue to improve priming quality (Liu et al, 2008).…”

Section: Resultsmentioning

confidence: 99%

“…Liu et al (2008) optimized hydropriming conditions of M. sativa seeds, and they found that hydropriming significantly increased germination rate but not final germination percentage. However, in their study, primed seeds were not re-dried prior to use.…”

Section: Introductionmentioning

confidence: 99%

Hydropriming accelerates seed germination of Medicago sativa under stressful conditions: A thermal and hydrotime model approach

Min

Chen

et al. 2017

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This study determined the effects of priming on germination in response to temperature, water potential and NaCl. Thermal and hydrotime models were utilized to evaluate changes in parameters of the model after priming. Priming reduced the amount of thermal time in both cultivars, but slightly increased the base temperature for germination from 1.0 to 3.5°C in "Longdong". Priming significantly increased germination rate at high water potential but had no effect at low water potential. Further, priming reduced the hydrotime constant but made the median base water potential value slightly more positive in both cultivars. Thus, priming increased germination rate in water but decrease it under severe water stress. Germination rate was significantly increased in both cultivars under salinity (NaCl) stress. Moreover, priming improved seedling growth in response to temperature, water and salinity stress in both cultivars.

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“…The duration which produces best outcomes of seed priming differs in different crop species/seed type. For example, 18 hours was found optimum for maize 20 , for rice 48 hours was found optimum 26 , in lucerne it was 3-5 days 23 and for cowpea, only 2 hours priming was found enough 24 .…”

Section: Discussionmentioning

confidence: 95%

“…The rate of water absorption rises as anaerobic conditions develop, potentially causing seed damage 22 . For example, hydropriming with water in the range of 90-100 percent of seed weight was shown to be optimum in lucerne seeds and higher amount of water resulted in reduction of seed performance 23 . While, in case of cowpea seeds, a volume twice the seed weight produced better results than a half and equal volume, however, the priming duration was shorter (2 hours) 24 .…”

Section: Discussionmentioning

confidence: 99%

Optimization of ‘On Farm’ Hydropriming Conditions In Wheat: Soaking Time And Water Volume Have Interactive Effects On Seed Performance

Tanwar

Mor

Sharma

et al. 2021

Preprint

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Seed priming is a simple and cost effective method to obtain a better plant stand under diverse environmental conditions. The current study was designed to determine the optimal priming duration and water volume for wheat seed. For this experiment, three wheat genotypes with distinct genetic and adaptive backgrounds were chosen. Seeds of each genotype were hydroprimed for 7 durations, i.e. 1, 2, 4, 8, 12, 16, and 20 hours, in three different water volumes, i.e. half, equal, and double volume with respect to seed weight. The control was unprimed (dry) seed. The germination characteristics and seedling vigour potential of hydroprimed seeds were evaluated in the lab by recording several parameters such as germination percentage and speed, seedling growth, and vigour indices at two different temperature levels. The results showed that optimal duration for hydropriming of wheat seed is 12 hours with an equal volume with respect to original seed weight, closely followed by 8 hours with double volume. Reduction in seed performance was observed at 16 and 20 hours priming particularly at double volume treatment. Effect of temperature on seed germination showed improvement in seedling vigour at 25°C when compared to 20°C, although germination percentage decreased slightly. Volume of water and priming duration showed significant interactive effects demonstrating that a higher volume can give equivalent results at a shorter duration and vice versa.

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Optimal conditions for hydropriming lucerne seeds

Cited by 6 publications

References 15 publications

Modeling Analysis on Germination and Seedling Growth Using Ultrasound Seed Pretreatment in Switchgrass

Modeling Analysis on Germination and Seedling Growth Using Ultrasound Seed Pretreatment in Switchgrass

Hydropriming accelerates seed germination of Medicago sativa under stressful conditions: A thermal and hydrotime model approach

Optimization of ‘On Farm’ Hydropriming Conditions In Wheat: Soaking Time And Water Volume Have Interactive Effects On Seed Performance

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