Acid and Temperature Treatments Result in Increased Germination of Seeds of Three Fescue Species

Stanisavljević, Rade; Vuckovic, S.; Simić, Aleksandar; Marković, Jordan; Lakic, Zelijco P.; Terzić, Dragan; Đokić, Dragoslav

doi:10.15835/nbha4027898

Cited by 9 publications

(5 citation statements)

References 20 publications

(22 reference statements)

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“…On the other hand, drying at 70°C reduced dormancy, but also reduced germination, and considering all moisture contents of harvested seeds, germination was high and amounted to 75-76, 65-67 and 65-71 % in tall fescue, red fescue and cocksfoot, respectively. High (70-80°C) drying temperatures stressfully affect seeds of tall fescue, meadow fescue and red fescue, which leads to irreversible germination loss during seed storage (Stanisavljević et al, 2012). High (above 70°C) temperature treatments are used in some fodder grasses such as bread grass (Brachiaria brizantha (A.…”

Section: Discussionmentioning

confidence: 99%

“…Drying temperatures in dryers can result in the reduction of seed dormancy (Stanisavljević et al, 2012;2013), but can also affect protein stability, enzymic activities, damage of cell membranes and mitochondria, which can lead to the seed germination reduction (Bewley, Black, 1994). Tall fescue is characterised by high adaptability to stress environments , while cocksfoot is particularly tolerant to high temperature stress .…”

Section: Drying Of Forage Grass Seed Harvested At Different Maturity mentioning

confidence: 99%

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Drying of forage grass seed harvested at different maturity and its utility value in autumn and spring sowing time

Stanisavljević

Djokic

Milenković

et al. 2014

Zemdirbyste-Agriculture

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Tall fescue (Festuca arundinacea Schreb.), red fescue (Festuca rubra L.) and cocksfoot (Dactylis glomerata L.) are important fodder grasses, but in seed production, they are prone to seed shedding and certain yield losses. In practice, seeds are usually harvested at approximately 20-35% moisture content and then are additionally dried to the moisture content of 12% or lower. However, to prevent shedding, seed was harvested at 45% moisture content. The effects of drying temperatures of 70, 60, 50, 40, 30 and 22 °C on germination and dormancy of tall fescue, red fescue, cocksfoot seeds, harvested at moisture contents of 45, 35 and 25 %, were observed in the present study. The analysis was done immediately upon seed drying, then three, eight and fourteen months later, which corresponds to the autumn and spring sowing time in the continental part of central and south-eastern Europe. In all the three species, drying temperature of 70°C, regardless of the moisture content, and 60°C in the combination with a seed moisture content of 45%, reduced germination. After three months, the highest germination was detected in tall fescue harvested at seed moisture of 25% and dried at 50°C. Furthermore, the greatest germination in red fescue and cocksfoot was determined in seeds harvested with the moisture content of 35% and dried at 50°C. After eight months, the highest germination in tall and red fescue were determined in seeds harvested with the moisture content of 25% and dried at 40-50°C, while corresponding values in cocksfoot amounted to 25% and 22-30°C, respectively. A positive and significant correlation was established between seed germination and seedling vigour.

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Section: Discussionmentioning

confidence: 99%

Section: Drying Of Forage Grass Seed Harvested At Different Maturity mentioning

confidence: 99%

Drying of forage grass seed harvested at different maturity and its utility value in autumn and spring sowing time

Stanisavljević

Djokic

Milenković

et al. 2014

Zemdirbyste-Agriculture

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“…According to Adkinset al (2002), through the process of breeding of agriculturally important species, dormant seeds have decreased or completely lost. On the other hand, there are no significant differences in species such as forage and ornamental grasses between sorts and populations from the natural environment in the presence of dormant seeds (Stanisavljević et al 2012).…”

Section: Introductionmentioning

confidence: 97%

Seed Quality of Oilseed Rape Varieties with Different Size and Colors After Three and Fifteen Months Storage

Stanisavljević¹,

Knežević²,

Tomić³

et al. 2019

Tarım Bilimleri Dergisi

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During two years, germinability and initial growth of seedling of nine foreign varieties and four domestic varieties were studied. The seed is grouped by size (small, medium and large), color (dark transitional and light color of seed coat). Then it was preserved and at three and fifteen months of age in the laboratory and in the field, germinability, dormant seed and growth of shoot and radicle root were examined. In addition to the age, other factors (variety, size, color, period of storage) influenced significantly (P≥0.05 to P≥0.00) on seed germinability and growth of seedling.Higher germinability is achieved from large seeds up to 3.6%. Depending on the seed coat color, the germinability varied to 11%. The seed coat color has had a high impact on maintaining germinability for fifteen months. Seeds with darker coat have also shown higher potential for storage and use in subsequent seeding periods, as determined by the application of the aging test on seed. Significant interdependence (r) was obtained between the germinability test and the growth of seedling in laboratory conditions and in field conditions. Between the germinability and the growth of the shoot and the root, a significant interdependence was established, depending on the varieties (P≥0.05 to P≥0.00).

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“…In many intensively cultivated crops, dormant seeds have been minimized or virtually non-existent (Adkins et al, 2002). However, fodder grasses exhibit no significant difference in the share of dormant seeds between cultivated and wild populations within the same species (Stanisavljević et al, 2012). Under natural conditions, dormant seeds delay germination, awaiting favorable conditions for the survival of the seedlings (Bewley, 1997).…”

Section: Introductionmentioning

confidence: 99%

Effect of seed aging on the seed quality and seedling growth of timothy grass (Phleum pratense L.)

Stanisavljević¹,

Poštić²,

Milenković³

et al. 2019

J Proc Ener Agri

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Timothy grass is a fodder grass mostly grown as a pure stand or in mixed stands with fodder legumes at higher elevations. It is cultivated for its high yields and the supreme quality of roughage containing Timothy grass. There are different methods for preserving the seed quality of fodder grasses relative to the following parameters: species, variety, harvest methods, postharvest treatments, as well as the storage temperature and air humidity. Poor seed germination is often caused by the presence of dormant seeds which fail to germinate despite ideal conditions in the field or laboratory. After a certain storage period, dormant seeds start germinating, but prolonged storage periods result in seed aging which is associated with reductions in seed germination, seedling growth and the total mass of the root system. The seed quality features of four Timothy grass seed lots (the 'Foka' cultivar), at ages of 3, 15 and 27 months, were examined in this study according to the share of dormant, germinated and dead seeds, as well as abnormal seedlings. Upon assessing seed germination, the stem length (cm), radicle length (cm) and fresh weight (g) of seedlings were measured. Different seed lots were found to exert no effect on the seed quality parameters examined and the growth of seedlings. Conversely, the seed age had a significant impact (P<0.001 to P<0.05) on the seed quality parameters examined and the seedling growth.

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Acid and Temperature Treatments Result in Increased Germination of Seeds of Three Fescue Species

Cited by 9 publications

References 20 publications

Drying of forage grass seed harvested at different maturity and its utility value in autumn and spring sowing time

Drying of forage grass seed harvested at different maturity and its utility value in autumn and spring sowing time

Seed Quality of Oilseed Rape Varieties with Different Size and Colors After Three and Fifteen Months Storage

Effect of seed aging on the seed quality and seedling growth of timothy grass (Phleum pratense L.)

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