Seed Vigor and Vigor Tests

Copeland, Lawrence O.; McDonald, Miller B.

doi:10.1007/978-1-4615-1783-2_7

Cited by 5 publications

(4 citation statements)

References 59 publications

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“…Seeds first lose vigor during the process of deterioration. Vigor loss is then followed by viability loss (Delouche and Caldwell 1962). Thus, a seed lot may maintain a high germination percentage while having decreased vigor.…”

Section: Discussionmentioning

confidence: 99%

Producing High-quality Seeds of an Heirloom Cabbage in Different Crop Management Systems

Osmani

Davidson

Tevlin

et al. 2023

horts

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Small- to midsized farmers in the southeastern United States have expressed interest in reigniting on-farm seed production of regionally adapted high-value vegetable crops. However, a considerable knowledge gap exists related to how locally produced seeds perform in the region. We investigated how the first generation of local, farm-produced seeds compared with the original, nonlocal, certified commercial seed stock in terms of initial germination, seedling vigor, and subsequent vegetative traits of ‘Yukina Savoy’ (Brassica rapa L.), an heirloom Chinese cabbage. Locally produced seeds consistently outperformed seeds of the commercial lot. Germination for local and nonlocal seeds reached 99% and 94%, respectively. However, locally produced seeds germinated 1.5-fold more rapidly than nonlocal seeds, and germination was more uniform in local seeds. Seedlings produced from local seeds appeared more vigorous and displayed a significant height advantage compared with nonlocal seeds when grown in the greenhouse. Likewise, transplants from local seeds maintained an advantage over transplants from nonlocal seeds for plant vigor, growth traits, and harvestable yield during the 4-week field cultivation period. We conclude that production of high-quality ‘Yukina Savoy’ seeds is possible in the southeastern region despite challenging environmental conditions and varied farming practices of our partners during the seed production cycle.

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Section: Discussionmentioning

confidence: 99%

Producing High-quality Seeds of an Heirloom Cabbage in Different Crop Management Systems

Osmani

Davidson

Tevlin

et al. 2023

horts

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show abstract

“…AAT, an artificial aging treatment, which was initially developed for evaluation of the storage potential of seed lots [16], has evolved into an indicator of seed vigor in many agricultural crops [17]. This treatment has recently been investigated as a tool for evaluating the efficacy of ex situ genetic resources conservation [18].…”

Section: Discussionmentioning

confidence: 99%

Large-Scale Screening of Intact Tomato Seeds for Viability Using Near Infrared Reflectance Spectroscopy (NIRS)

et al. 2017

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Near infrared reflectance spectroscopy (NIRS), a non-destructive and rapid analytical method, was used to examine the possibility of replacing a method for the large-scale screening of tomato seed viability. A total of 368 tomato seed samples were used for development and validation of an NIRS calibration model. The accelerating aging method (98 ± 2% R.H., 40 • C) was employed for preparation of a calibration set (n = 268) and a validation set (n = 100) with wider seed viability. Among the tomato NIRS calibration models tested, the modified partial least square (MPLS) regression produced the best equation model. Specifically, this model produced a higher RSQ (0.9446) and lower SEC (6.5012) during calibration and a higher 1-VR (0.9194) and lower SECV (7.8264) upon cross-validation compared to the other regression methods (PLS, PCR) tested in this study. Additionally, the SD/SECV was 3.53, which was greater than the criterion point of 3. External validation of this NIRS equation revealed a significant correlation between reference values and NIRS-estimated values based on the coefficient of determination (R2), the standard error of prediction (SEP (C)), and the ratio of performance to deviation (RPD = SD/SEP (C)), which were 0.94, 6.57, and 3.96, respectively. The external validation demonstrated that this model had predictive accuracy in tomato, indicating that it has the potential to replace the germination test.

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“…For experiments, seeds were not specially selected, only damaged ones with a changed color or empty were rejected. Seed germination capacity (on day 20) and germination energy (on day 7) were assessed according to methodical guidelines (Copeland and McDonald, 1999;IRST, 2019).…”

Section: Germination Analysismentioning

confidence: 99%

Biological Study Scabiosa ochroleuca Seeds Germination and Development of Methods for a Long-Term Storage

Tyrzhanova¹,

Ishmuratova²,

Atikeeva³

et al. 2022

OnLine Journal of Biological Sciences

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The organization of a storage system for seeds of medicinal plants is an important task of introduction. Our study aimed to identify biological features during the germination of Scabiosa ochroleuca seeds and optimize the conditions for their storage and germination activation. The paper presents the results of assessing the viability of seeds of S. ochroleuca depending on the origin, size, storage time, the use of pre-sowing treatment with epin, potassium humate, the use of barbotage and stratification; the conditions of cryopreservation in liquid nitrogen have been worked out. The results showed that germination capacity and energy depended on origin and size. The best indicators were noted for large and completed seeds collected in the Buyratau Mountains. During storage, a gradual decrease in germination was noticed; the loss of viability was noted in the 4 th year of storage under normal conditions. Stratification can be used for 3 months to activate germination. To organize a long-term storage system, we recommend storing S. ochroleuca seeds in liquid nitrogen in plastic containers, using glycerol cryoprotectant at a concentration of 40%.

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Seed Vigor and Vigor Tests

Cited by 5 publications

References 59 publications

Producing High-quality Seeds of an Heirloom Cabbage in Different Crop Management Systems

Producing High-quality Seeds of an Heirloom Cabbage in Different Crop Management Systems

Large-Scale Screening of Intact Tomato Seeds for Viability Using Near Infrared Reflectance Spectroscopy (NIRS)

Biological Study Scabiosa ochroleuca Seeds Germination and Development of Methods for a Long-Term Storage

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