Muskmelon seed priming in relation to seed vigor

A number of important factors may affect seed priming response, including seed quality. Effects of seed vigor on seed priming response were investigated using seed lots of two muskmelon (Cucumis melo L.) cultivars. Seeds of muskmelon, cvs. Mission and Top Net SR were artificially aged at 43°C for 0, 20 and 40 hours. Seeds were primed for six days in darkness at 25°C in KNO3 (0.35 mol L-1) aerated solution. Aged seeds germinated poorly at 17°C. Priming increased germination rate at 17 and 25°C and germination percentage at 17°C. An interaction effect on germination performance between vigor and priming was observed, especially at low temperature. Priming increased germination performance in seeds of low vigor, and the response was cultivar dependent.

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Influence of seed priming on germination characteristics of sorghum (Sorghum bicolor L. Moench)

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/911/1/012086 ◽

2021 ◽

Vol 911 (1) ◽

pp. 012086

Author(s):

Ramlah Arief ◽

Fauziah Koes ◽

Oom Komalasari ◽

Fatmawati

Keyword(s):

Seed Quality ◽

Germination Rate ◽

Primary Root ◽

Dry Weight ◽

Seed Priming ◽

Germination Percentage ◽

Quality Parameters ◽

Seed Vigor ◽

Germination Characteristics ◽

Positive Effect

Abstract Seed priming or invigoration is presowing treatments of improving germination aimed to reduce the time from sowing to emergence and improving emergence uniformity. Research on seed priming was conducted Indonesian Cereal Research Institute (ICERI) seed laboratory from January until March 2021 to evaluate the effect of seed priming on sorghum seed vigor. Seed quality parameters includes germination percentages, germination rate, shoot and primary root length, seedling dryweight, Sorghum seed variety of Suri 4 were used as seed material. Results showed that among the priming treatments that give positive effect on germination percentage, germination rate, seedling dry weight were priming treatment with KNO3 1.5%.

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Muskmelon seed germination and seedling development in response to seed priming

Scientia Agricola ◽

10.1590/s0103-90162003000100011 ◽

2003 ◽

Vol 60 (1) ◽

pp. 71-75 ◽

Cited By ~ 19

Author(s):

Warley Marcos Nascimento

Keyword(s):

Seed Germination ◽

Cucumis Melo ◽

Germination Rate ◽

Fungal Growth ◽

Seed Priming ◽

Seedling Development ◽

Factors Affecting ◽

Total Seed ◽

Cucumis Melo L ◽

Osmotic Potentials

Important factors affecting seed priming have not been extensively reported in muskmelon (Cucumis melo L.) studies. The optimization of the seed priming technique becomes very important at the commercial scale. Little information has been reported on seedling development of muskmelon subsequent to seed priming. Seeds of muskmelon were primed in darkness at 25°C in different solutions and three osmotic potentials. Seeds were also primed with and without aeration during different periods. In relation to osmotic solutions, an osmotic potential around -1.30 MPa is most adequate for muskmelon priming. Salt solutions gave better germination rate but were deleterious for seed germination, especially at higher osmotic potentials. Aeration of the soaking salt solution gave faster germination at 17°C, and because of the early germination, these treatments probably presented a better seedling development. Deleterious effect on total seed germination was observed for long soaking periods with aeration. Fungal growth increased on seeds primed in aerated solutions. Seeds from priming treatments had a better germination rate and seedling development under 17 and 25°C.

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Effects of seed priming treatments on the germination and development of two rapeseed (Brassica napus L.) varieties under the co-influence of low temperature and drought

PLoS ONE ◽

10.1371/journal.pone.0257236 ◽

2021 ◽

Vol 16 (9) ◽

pp. e0257236

Author(s):

Zong He Zhu ◽

Abdul Sami ◽

Qing Qing Xu ◽

Ling Ling Wu ◽

Wen Yin Zheng ◽

...

Keyword(s):

Low Temperature ◽

Germination Rate ◽

Seed Priming ◽

Seed Vigor ◽

Stress Conditions ◽

Stem Length ◽

Activity Levels ◽

Sod Activity ◽

Germination Time ◽

Rape Seedlings

The present study was performed to evaluate the effects of seed priming. This was done by soaking the seeds of two rapeseed cultivars, namely, ZY15 (tolerant to low temperature and drought) and HY49 (sensitive to low temperature and drought), for 12 h in varying solutions: distilled water, 138 mg/L salicylic acid (SA), 300 mg/L gibberellic acid (GA), 89.4 mg/L sodium nitroprusside (SNP), 3000 mg/L calcium chloride (CaCl2), and 30 mg/L abscisic acid (ABA). Primed and non-primed seeds were left to germinate at 15°C and -0.15 MPa (T15W15) and at 25°C and 0 MPa (T25W0), respectively. The results showed that SA, GA, SNP, CaCl2, and ABA significantly improved the germination potential (GP), germination rate (GR), germination index (GI), stem fresh weight (SFW), stem dry weight (SDW), root length (RL), stem length (SL), and seed vigor index (SVI) under T15W15. For ZY15 seeds under T25W0, GA, SNP, CaCl2, and ABA priming reduced the average germination time (96% after 5 days) compared to that of the control (88% after 5 days). For ZY15 seeds under T15W15, SA, SNP, CaCl2, and ABA priming, with respect to the control and water-treated groups, shortened the average germination time (92% after 5 days) compared to that of the control (80% after 5 days). For HY49 seeds under T25W0, GA, SNP, CaCl2, and ABA priming reduced the average germination time (92% after 5 days) compared to that of the control (85% after 5 days). Similarly, for HY49 seeds under T15W15, GA priming shortened the average germination time (89% after 5 days) compared to that of the control (83% after 5 days). These priming agents increased the net photosynthesis, stomatal conductivity, and transpiration rate of rape seedlings under conditions of low temperature and drought stress, while also decreasing intercellular carbon dioxide (CO2) concentrations. Additionally, SA, GA, SNP, CaCl2, and ABA increased superoxide dismutase concentrations (SOD) and ascorbic peroxidase (APX) activities of rape seedlings under stress conditions, while decreasing catalase (CAT) and peroxidase (POD) activities in ZY15 seedlings. In HY49, which is sensitive to low temperature and drought, all priming solutions, except for SNP, led to an increase in SOD activity levels and a decrease in CAT activity levels. Overall, SA, GA, SNP, and CaCl2 increased the concentrations of indoleacetic acid (IAA), GA, ABA, and cytokinin (CTK) in seedlings under stress conditions. Moreover, compared to SA, CaCl2, and ABA, GA (300 mg/L) and SNP (300 mol/L) showed improved priming effects for ZY15 and HY49 under stress conditions.

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Effect of Seed Priming on Germination Properties and Seedling Establishment of Cowpea (Vigna sinensis)

Notulae Scientia Biologicae ◽

10.15835/nsb346338 ◽

2011 ◽

Vol 3 (4) ◽

pp. 113-116 ◽

Cited By ~ 6

Author(s):

Hamdollah ESKANDARI ◽

Kamyar KAZEMI

Keyword(s):

Laboratory Tests ◽

Low Cost ◽

Germination Rate ◽

Seedling Emergence ◽

Laboratory Data ◽

Seed Priming ◽

Germination Percentage ◽

Seed Vigor ◽

Seedling Vigor ◽

Contributing Factors

Early emergence and stand establishment of cowpea are considered to be the most important yield-contributing factors in rainfed areas. Laboratory tests and afield experiment were conducted in RCB design in 2011 at a research farm in Ramhormoz, Iran, to evaluate the effects of hydropriming (8, 12 and 16 hours duration) and halo priming (solutions of 1.5% KNO3 and 0.8% NaCl) on seedling vigor and field establishment of cowpea. Analysis of variance of laboratory data showed that hydropriming significantly improved germination rate, seed vigor index, and seedling dry weights. However, germination percentage for seeds primed with KNO3 and non-primed seeds were statistically similar, but higher than those for NaCl priming. Overall, hydropriming treatment was comparatively superior in the laboratory tests. Invigoration of cowpea seeds by hydropriming and NaCl priming resulted in higher seedling emergence and establishment in the field, compared to control and seed priming with KNO3. Seedling emergence rate was also enhanced by priming seeds with water, suggesting that hydropriming is a simple, low cost and environmentally friendly technique for improving seed and seedling vigor of cowpea.

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Effect of seed priming with kinetin on germination indices and proline activity of Silybum marianum L. under drought stress conditions

International Journal of Life Sciences ◽

10.3126/ijls.v9i1.11919 ◽

2015 ◽

Vol 9 (1) ◽

pp. 6-11

Author(s):

Abolfazl Masoumi Zavariyan ◽

Mojtaba Yousefi Rad ◽

Mohsen Asghari

Keyword(s):

Drought Stress ◽

Germination Rate ◽

Dry Weight ◽

Seed Priming ◽

Germination Percentage ◽

Seed Vigor ◽

Silybum Marianum ◽

Randomized Design ◽

Seedling Length ◽

Germination Indices

For investigation of the effect of seed priming by kinetin on germination indices and proline activity of Silybum marianum L. under drought stress, factorial experiment based on completely randomized design with two factor includingdifferent concentrations of kinetin (0, 10 and 20 ppm) and different levels of drought stress including 0, -6 and -12 barat three replicates was carried out. According to the results, drought stress and kinetin individualy cause to decreases of germination percentage, germination rate, seedling length, seed vigor and seedling dry weight but uses of kinetin in drought stress condition improvment of them. Also, drought stress cause to increases of proline content and catalase activity. Therefore, seed priming with 10 ppm kinetin at drought stress was improved the germination indices of Silybum marianum L.DOI: http://dx.doi.org/10.3126/ijls.v9i1.11919 International Journal of Life Sciences Vol.9(1) 2015 6-11

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Short-term aerated hydration for the improvement of seed quality in Brassica oleracea L

Seed Science Research ◽

10.1017/s0960258500001094 ◽

1992 ◽

Vol 2 (1) ◽

pp. 41-49 ◽

Cited By ~ 25

Author(s):

J. M. Thornton ◽

A. A. Powell

Keyword(s):

Moisture Content ◽

Seed Quality ◽

Germination Rate ◽

Germination Percentage ◽

Short Term ◽

Brussels Sprouts ◽

High Germination ◽

Controlled Deterioration ◽

Improved Performance ◽

Aged Seeds

AbstractSeeds of the Brussels sprouts cultivar Asmer Aries and the cauliflower cultivar Hipop were subjected to ageing at 20% moisture content and 45°C for 24 or 30 h, respectively; all seeds retained high germination after ageing. Aerated hydration of unaged and aged seeds of both cultivars for 4–8 h at a range of temperatures (10–30°C), followed by drying, resulted in improved performance, except that germination percentage and rate of cauliflower were lower at 10°C. Thus, all treated seeds showed greater germination rate and seedling root length than the control, which may have resulted from the advancement of the process of germination. The deleterious effect of aerated hydration at 10°C on cauliflower could be explained by damage due to rapid imbibition; seeds that had imbibed slowly to close to full imbibition (41% moisture content) before aerated hydration showed no decrease in germination. The improvement of aged seeds after aerated hydration was also revealed by higher germination after the controlled-deterioration test, which indicated less deterioration in treated seeds. Furthermore, the optimum improvements for all seeds were observed at 25°C and were greater when the water was aerated than non-aerated. These observations indicate the activation of metabolic repair processes during aerated hydration, leading to a reversal of the deterioration sustained during ageing.

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The Effects of Ozone Exposure on Aged Soybean Seeds Stored in Different Packaging

Journal of Southwest Jiaotong University ◽

10.35741/issn.0258-2724.56.2.14 ◽

2021 ◽

Vol 56 (2) ◽

pp. 165-175

Author(s):

Indrie Ambarsari ◽

Intan Gilang Cempaka ◽

Sigit Budi Santoso ◽

Munir Eti Wulanjari ◽

Muhammad Nur

Keyword(s):

Seed Quality ◽

Germination Rate ◽

Fatty Acid Content ◽

Research Result ◽

Chemical Properties ◽

Soybean Seed ◽

Germination Percentage ◽

Ozone Exposure ◽

Soybean Seeds ◽

Aged Seeds

This article describes an idea about improving the aged soybean seed quality through ozone application based on the consideration that the ozone's oxidative and reactive nature could preserve agriculture commodities during storage. Using soybean seeds that were naturally aged in room temperature storage (25±5°C) for two months, gaseous ozone's efficacy in rejuvenating the aged seeds was examined. The aged seeds were divided into three different packages: open container, polypropylene woven sack, and vacuum polyethylene plastic. Gaseous ozone at a capacity of 150 g/h was continuously exposed on packaged seeds during six months of storage under low temperature (18±5°C). The authors found that ozone in specific limit exposure could improve physiological characteristics and inhibit some chemical properties deterioration of aged soybean seeds during storage. Our technique allows for improvement in germination percentage and germination rate of aged seeds in the fourth month of ozone exposure (p<0.05). However, these physiological parameters decreased significantly in the sixth month of ozone exposure, signing that prolonged ozone exposure would lead to adverse effects due to excessive oxidation. The result also showed that ozone storage significantly retard the elevation of moisture and free fatty acid content of aged soybean seeds. The ozone effectiveness evaluation is confirmed in all packaging conditions, but the vacuum packaging offered better preservation on almost entirely seed quality parameters during storage, except for protein. This research result provides a promising technique to restore aged seed quality and can be used for better seed provision in the seed industry.

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SEED QUALITY EFFECTS ON HYDROPONIC LETTUCE

HortScience ◽

10.21273/hortsci.31.6.912d ◽

1996 ◽

Vol 31 (6) ◽

pp. 912D-912

Author(s):

Ahmet Korkmaz ◽

Wallace Pill

Keyword(s):

Seed Quality ◽

Germination Rate ◽

Seedling Emergence ◽

Seed Priming ◽

Germination Percentage ◽

Fresh Weight ◽

Seedling Length ◽

Size Uniformity ◽

Initial Seed ◽

Final Harvest

Achievement of head size uniformity at final harvest reduces loss and increases profitability for the hydroponic lettuce grower. Shoot fresh weight of `Cortina' lettuce (Lactuca sativa L.) at 7 or 21 days after planting (DAP) was inversely proportional to the number of days required for seedling emergence, and was greater for raw than for pelleted seeds. Head fresh weight at final harvest (61 DAP) was directly proportional to seedling length at 21 DAP, but raw and pelleted seeds produced equal head weights. Thus, initial seed (seedling) vigor differences were maintained to final harvest. Osmotic seed priming (–1.5 MPa KH2PO4, 20 h, dark) led to increased germination rate at 15, 25, and 35C; had no effect on germination synchrony; and increased germination percentage only at 35C. Covering raw or pelleted seeds sown in depressions of the phenolic foam trays with fine (No. 5) vermiculite compared to leaving the seeds uncovered, and soaking the trays in hydroponic solution rather than water, increased seedling shoot fresh weights. Seeds sown on their first day of germination or primed seeds gave greater seedling shoot fresh weights than pelleted seeds. However, the more uniform seedling shoot fresh weights from germinated seeds than from primed seeds was associated with more rapid and synchronous seedling emergence.

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The Effect of Seed Priming and Accelerated Aging on Germination and Physiochemical Changes in Milk Thistle (Silybum marianum)

Notulae Scientia Biologicae ◽

10.15835/nsb529017 ◽

2013 ◽

Vol 5 (2) ◽

pp. 204-211 ◽

Cited By ~ 5

Author(s):

Ghasem PARMOON ◽

Ali EBADI ◽

Sodabeh JAHANBAKHSH ◽

Mahdi DAVARI

Keyword(s):

Polyphenol Oxidase ◽

Seedling Growth ◽

Germination Rate ◽

Accelerated Aging ◽

Seed Priming ◽

Germination Percentage ◽

Seed Vigor ◽

Milk Thistle ◽

Antioxidants Activity ◽

Germination Speed

Effects of seed priming and aging on some physiological characteristics of Milk thistle was studied in a factoral experiment based on Complete Randomized Design (CRD). Tratments were included hydro priming (using distilled water), halo priming (0, 1.5, 3, 4.5 and 6% KNO3) and accelerated aging (0, 2, 4 and 6 days under 45°C and 95% humidity) in three replications. Determined parameters were germination charactristics including germination percentage, daily germination speed, mean time of germination, seed vigor index, hypocutile length and hypocutile dry weight. Activity of catalase, peroxidase and polyphenol oxidase were determined at 12 hours after imbibition and seedling stage. According to results of this experiment, germination percentage, seed vigor and seedling growth of seeds were increased under all priming treatments. Improving the catalase and peroxidase activity led to decrease the aging damages. Germination characteristics were improved under both priming treatments at the beginning of germination as well as seedling growth. Polyphenol oxidase activity was increased in the pre-treated seeds but decreased in seedling growth stage. Aging treatments led to reduce the germination percentage, daily germination speed, seed vigor and seedling growth while the germination time was increased. Accelerated aging caused to reduce the germination rate and seedling growth of milk thistle that is probably due to increasing the lipid peroxidation, free radical increment and decreasing the antioxidants activity. The greatest and lowest antioxidants activity, the germination percentage, germination speed and seed vigor were respectively observed under priming using 3% KNO3 concentration and control seeds.

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Enhancement of Tainan 9 Peanut Seed Storability and Germination under Low Temperature

International Journal of Agronomy ◽

10.1155/2020/8813285 ◽

2020 ◽

Vol 2020 ◽

pp. 1-8

Author(s):

Parinee Jeammuangpuk ◽

Parichart Promchote ◽

Juangjun Duangpatra ◽

Tanapon Chaisan ◽

Damrongvudhi Onwimol ◽

...

Keyword(s):

Salicylic Acid ◽

Low Temperature ◽

Seed Quality ◽

Seedling Emergence ◽

Storage Period ◽

Seed Priming ◽

Seed Vigor ◽

Peanut Seed ◽

Temperature Conditions ◽

Before And After

Low temperature condition during December to January can limit seed emergence and seedling establishment for peanut production in Thailand. The objective of this study was to determine the effects of peanut seed priming on seed germination and vigor under optimal and low temperature conditions before and after 9 months of storage. Tainan 9 peanut seeds were primed with salicylic acid (SA), ascorbate (ASA), CaCl2, or chitosan and tested for germination at 25°C (optimal temperature) and 15°C (low temperature) before and after a 9-month storage period. Seed priming with 50 mg·L−1 SA and 50 mg·L−1 ASA for 12 hours before germinating improved germination at 15°C when compared to untreated seeds both before and after 9-month storage. The high seed quality, illustrated by high germination percentage, high seed vigor, and low mean germination time related to the low autoxidation substrates: lipoxygenase (LOX), malondialdehyde (MDA), and high antioxidants: superoxide dismutase (SOD) and catalase (CAT). It suggests that peanut seed priming with salicylic acid and/or ascorbate can improve seedling emergence and growth under low temperature conditions.

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