Germination and vigour loss of non-sprouted and sprouted wheat seeds during storage – testing the viability constants

1998 ◽  
Vol 8 (2) ◽  
pp. 123-128 ◽  
Author(s):  
M. Stahl ◽  
A. M. Steiner
Keyword(s):  
Moisture Content ◽  
Winter Wheat ◽  
Storage Conditions ◽  
Percentage Germination ◽  
Seed Moisture Content ◽  
Seed Moisture ◽  
Sprouted Seeds ◽  
Species Specific ◽  
Increasing Temperature ◽  
Wheat Seeds

AbstractThe loss of percentage germination and vigour of non-sprouted and sprouted seeds of winter wheat was determined during storage for 80 days at 11 different combinations of moisture content and temperature. Before storage the initial percentage germination and vigour were reduced according to the level of sprouting. During storage the percentage germination and vigour decreased. The rate of germination loss increased with increasing seed moisture content and/or increasing temperature. The species-specific constants KE, CW, CH and CQ of the viability equation were not different for non-sprouted and sprouted seeds. Likewise, the relation between the percentage of normal and abnormal seedlings was independent of sprouting. The rate of vigour loss was also independent of the storage conditions and of sprouting.

scholarly journals Seed health of common bean stored at constant moisture and temperature

2008 ◽  
Vol 65 (6) ◽  
pp. 613-619 ◽  
Author(s):  
Fabiana Gonçalves Francisco ◽  
Roberto Usberti
Keyword(s):  
Moisture Content ◽  
Common Bean ◽  
Storage Conditions ◽  
Quality Parameters ◽  
Main Concern ◽  
Fusarium Spp ◽  
Seed Moisture Content ◽  
Seed Moisture ◽  
Seed Health ◽  
Penicillium Spp

Fungal incidence in stored common bean (Phaseolus vulgaris L.) is the main concern in order to preserve seed health and viability. The main aim of this study was to analyse these quality parameters in hermetically stored seeds at 10.2, 13.1, 16.2, 18.5% moisture content (MC) and 25, 30, 35, 40°C, through seed germination and health tests. Water activity recorded at 10.2 and 18.5% MC were 0.448 and 0.700, respectively. Low seed moisture content reduced Alternaria spp. incidence at 25-30°C. Highest incidence of Fusarium spp. (7.5%) occurred at 16.2% MC and 35-40°C. Highest incidences of Rhizoctonia spp. (8-10%) were recorded at 16.2-18.5% MC and 30-40°C. Penicillium spp. and Aspergillus spp. were predominant throughout the experiment and the highest incidences (80-100%; 20-30%, respectively) were scored at 18.5% MC and 30-35°C and 13.1-18.5% MC at 35°C, respectively. The higher the seed MC the higher the fungi incidence while lower seed MC decreased the incidences by 25%. Storage conditions below 30°C and 13.0% MC appear suitable to preserve common bean seed in relation to viability and health, up to a 8-month period.

scholarly journals Effect of different storage conditions and seed treatments on seed viability in soybean [Glycine max (L.) Merr.]

2017 ◽  
Vol 9 (1) ◽  
pp. 245-252
Author(s):  
J. B. Patel ◽  
Jyoti Sondarva ◽  
C. A. Babariya ◽  
R. R. Rathod ◽  
V. J. Bhatiya
Keyword(s):  
Moisture Content ◽  
Cold Storage ◽  
Storage Conditions ◽  
Germination Percentage ◽  
Seed Treatments ◽  
Seed Moisture Content ◽  
Seed Vigour ◽  
Seed Moisture ◽  
Vigour Index ◽  
Leaf Powder

The present investigation was carried out in laboratory of the Department of Seed Science and Technolo-gy, College of Agriculture, Junagadh Agricultural University, Junagadh from the April 2013 to April 2015, wherein two kg of freshly harvested quality seed of soybean cv. Gujarat Junagadh Soybean 3 having high germination percentage and low moisture content (below 8%) was taken for each repetition and for each combination of treat-ments. The treatment consisted of two storage conditions (C) viz., C1 (Ambient temperature) and C2 (Cold storage at 7oC + 2oC), and five seed treatments (S) viz., S1 = Control, S2 = Carbendazim @ 2g/kg seed, S3 = Mancozeb @ 2g/ kg seed, S4 = Neem leaf powder @ 10g/kg seed, and S5 = Neem Oil @ 5 ml/kg seed. The experiment was carried out using Completely Randomized Design (Factorial) repeated three times. After proper mixing or smearing the seeds as per the treatments, seeds were packed in cloth bag and kept in laboratory under two different storage conditions. Observations were recorded at 90 days interval on germination (%), root length (cm), shoot length (cm), seedling dry weight (g), seed vigour index I, seed vigour index II and seed moisture content (%). The results revealed that storage condition (C) and seed treatments (S) exhibited significant differences almost for the all the traits for germination and seedling parameters after 2 years of storage. The results of soybean seed stored in two different storage conditions showed that on an average, the seed stored under cold storage (70C + 20C) noted higher values for all the traits studied except seed moisture content after 2 years of storage. Among the seed treatments, on an average, after 2 years of seed storage, significantly (P<0.05) higher values were recorded by all the seed treatments over the control. However, seed treated with Mancozeb @ 2g/kg of seed recorded the significantly highest germination percentage (71.50 %) and it was at par with Neem leaf powder @ 10 g / kg seed (70.67%) and Carbendazim @ 2g /kg seed (69.67%) after 2 years of storage. The germination percentage noted in control treatment was 33.17 per cent after 2 years of storage. An ISTA standard for germination in soybean is 70 per cent. Most of the interactions effects were found significant (P<0.05) for all the traits studied.

scholarly journals Storage of seeds of Cnidosculus phyllacanthus Pax & K. Hoffm.

2005 ◽  
Vol 9 (4) ◽  
pp. 591-595
Author(s):  
Lígia M. de M. Silva ◽  
Ivor B. de Aguiar ◽  
Déborah L. de Morais ◽  
Ricardo A. Viegas ◽  
Joaquim A. G. Silveira
Keyword(s):  
Moisture Content ◽  
Room Temperature ◽  
Storage Conditions ◽  
Seed Moisture Content ◽  
Seed Moisture ◽  
Room Condition ◽  
Germination Speed ◽  
Physiological Quality ◽  
Cold Chamber

This work aimed to determine the best environment for conservation of physiological quality of seeds of Cnidosculus phyllacanthus during storage. Seeds with 8.5% moisture content and 86% germinative capacity were filled in containers of different permeability, and storaged at different conditions during 360 days. Seeds packed in permeable container (paper bag) were stored at ordinary room temperature (18 to 25 ºC and 55 to 78% RH), and dry chamber (18 ºC and 60% RH) while those packed in semipermeable (polyethylene bag) and impermeable (glass) containers were stored in cold chamber (10 ºC and 75% RH). Seed moisture content, germinative capacity and germination speed were evaluated each 90 days interval. For all the tested storage conditions, seed germination speed was reduced at first evaluation and stabilized up to 360 days. Great deterioration in seeds stored at ordinary room condition was observed, while those stored in dry chamber maintained its germinative capacity for 270 days. The seed germinative capacity was better retained in cold storage, packaged either in semipemeable or impermeable containers. During storage, the seeds had a behavior classified as orthodox.

scholarly journals Impact of Storage Fungi on Soybean Seed Deterioration in Different Storage Conditions and Seed Moisture Content

2019 ◽  
Vol 6 (1) ◽  
pp. 65-76
Author(s):  
saman sheidaei ◽  
Aidin Hamidi ◽  
hossein sadeghi ◽  
bita oskouei ◽  
leila zare ◽  
...  
Keyword(s):  
Moisture Content ◽  
Soybean Seed ◽  
Storage Conditions ◽  
Seed Moisture Content ◽  
Seed Deterioration ◽  
Storage Fungi ◽  
Seed Moisture

scholarly journals Plantability and moisture content of naked and pelleted seeds of supersweet (Sh2) corn during cold storage conditions

2012 ◽  
Vol 34 (1) ◽  
pp. 39-46 ◽  
Author(s):  
André de Oliveira Lagôa ◽  
Adriano César Ferreira ◽  
Roberval Daiton Vieira
Keyword(s):  
Moisture Content ◽  
Cold Storage ◽  
Research Work ◽  
Apparent Volume ◽  
Storage Conditions ◽  
Irregular Shape ◽  
Seed Moisture Content ◽  
Seed Moisture ◽  
Physical Attributes ◽  
Supersweet Corn

The supersweet (Sh2) corn seeds have a thin tegument and an irregular shape, which hinder the sowing procedure. As a function of those factors, the significance of using the pelleting process to improve sowing and standardize the stand of plants in the field without the need of thinning within the row is emphasized. Although this technique has already been known for many years, little has been studied on the effect of such procedure on the plantability and on the moisture content of the supersweet corn seeds. Therefore, this research work aimed at evaluating the effects of pelleting on the moisture content of the seeds along the storing process, on the occurrence of gaps on seed deposition and on the dropping of double seeds, with the aid of a testing seeder. Other physical attributes of seeds and pellets were also evaluated through tests of fragmentation, screen retention, mass of a thousand seeds and apparent volume. Results have shown an increase on the mass and on the volume of the pelleted seeds that presented highly resistance to cracks and breaking. The pelleting was efficient on the reduction of gaps and on the deposition of double seeds at sowing, thus providing highly satisfactory results for these attributes. An increase on the seed moisture content was also observed as a function of storage with a significant reduction on this factor after the pelleting procedure. Results allow concluding that the pelleting process reduces seed moisture content and improves plantability, positively affecting the efficiency of the sowing process.

RF sensing of grain and seed moisture content

2001 ◽  
Vol 1 (2) ◽  
pp. 119 ◽  
Author(s):  
S.O. Nelson ◽  
S. Trabelsi ◽  
A.W. Kraszewski
Keyword(s):  
Moisture Content ◽  
Seed Moisture Content ◽  
Seed Moisture ◽  
Rf Sensing

Seed development in Malva parviflora: onset of germinability, dormancy and desiccation tolerance

2007 ◽  
Vol 47 (6) ◽  
pp. 683 ◽  
Author(s):  
Pippa J. Michael ◽  
Kathryn J. Steadman ◽  
Julie A. Plummer
Keyword(s):  
Moisture Content ◽  
Seed Development ◽  
Desiccation Tolerance ◽  
Dry Weight ◽  
Physical Dormancy ◽  
Seed Moisture Content ◽  
Physiological Maturity ◽  
Seed Moisture ◽  
Physiological Dormancy ◽  
Malva Parviflora

Seed development was examined in Malva parviflora. The first flower opened 51 days after germination; flowers were tagged on the day that they opened and monitored for 33 days. Seeds were collected at 12 stages during this period and used to determine moisture content, germination of fresh seeds and desiccation tolerance (seeds dried to 10% moisture content followed by germination testing). Seed moisture content decreased as seeds developed, whereas fresh (max. 296 mg) and dry weight (max. 212 mg) increased to peak at 12–15 and ~21 days after flowering (DAF), respectively. Therefore, physiological maturity occurred at 21 DAF, when seed moisture content was 16–21%. Seeds were capable of germinating early in development, reaching a maximum of 63% at 9 DAF, but germination declined as development continued, presumably due to the imposition of physiological dormancy. Physical dormancy developed at or after physiological maturity, once seed moisture content declined below 20%. Seeds were able to tolerate desiccation from 18 DAF; desiccation hastened development of physical dormancy and improved germination. These results provide important information regarding M. parviflora seed development, which will ultimately improve weed control techniques aimed at preventing seed set and further additions to the seed bank.

Time of harvest, prethreshing treatment and quality in snap bean (Phaseolus vulgaris) seed crops

1987 ◽  
Vol 27 (1) ◽  
pp. 179 ◽  
Author(s):  
MA Siddique ◽  
G Somerset ◽  
PB Goodwin
Keyword(s):  
Moisture Content ◽  
Seed Quality ◽  
Seed Maturation ◽  
Seed Moisture Content ◽  
Snap Beans ◽  
Seed Moisture ◽  
Poor Seed ◽  
Seed Crops ◽  
Time Of Harvest

Trials on the cultivars Canyon and Gallatin 50 in 1978 and Cascade in 1979 were run in North Queensland to examine ways of improving seed quality of snap beans. The trials concentrated on the maturation period, since this is a critical period for the development of seed quality. We found that seed quality was poor when the crop was cut at the stage when the leaves had fallen and all the pods were dry, or if the plants were cut at any stage and allowed to dry on the ground in single rows. This poor seed quality was associated with high pod temperatures during seed maturation. Cutting the crop before leaf fall, at a seed moisture content close to 50% (20-40% of pods dry) and windrowing immediately in 5 or 10 rows to 1 windrow gave low pod temperatures during seed maturation and high seed quality. Seed harvested and threshed directly off the crop was of good quality provided the seed moisture content in the crop had fallen to less than 25%.

scholarly journals Mutu Fisik Dan Teknik Pematahan Dormansi Benih Kayu Kuku (Pericopsis mooniana (Thw.) Thw.)

2020 ◽  
Vol 11 (3) ◽  
pp. 199-205
Author(s):  
Arum Sekar Wulandari ◽  
Afrida Rizka Farzana
Keyword(s):  
Moisture Content ◽  
Cold Water ◽  
Dormancy Breaking ◽  
Seed Moisture Content ◽  
Physical Quality ◽  
Seed Moisture ◽  
Breaking Seed Dormancy ◽  
Short Time ◽  
Number Of Seeds

The presence of Pericopsis mooniana (Thw.) Thw. in nature is endangered. Meanwhile, Pericopsis mooniana plants have its obstacles in generative propagation because the seeds have mechanical dormancy. Studies carried out to: (1) observe the morphology of pods, seeds and sprouts of Pericopsis mooniana; (2) determine the physical quality of Pericopsis mooniana seeds, and (3) analyze the proper dormancy breaking treatment for Pericopsis mooniana seeds. Research is conducted in laboratories and in greenhouses. The physical quality of the seeds measured was the weight of 1,000 seeds and the moisture content. The treatment for breaking the dormancy of the Pericopsis mooniana seeds were control, scarification of the seeds using nail clippers and soaking in hot to cold water for 48 hours. Morphologically, the fruit of Pericopsis mooniana is pod-shaped, with orange seeds, oval-shaped and curved edges. Pericopsis mooniana sprouts include in the epigeal type. In 1 kg of weight there are ± 4,000 Pericopsis mooniana seeds, with the post harvest seed moisture content amounting to 7.62%. The dormancy breaking treatment of Pericopsis mooniana seeds increased seeds germination by 60% compared to controls. The scarification of Pericopsis mooniana seeds using nail clippers for breaking mechanical dormancy is the best treatment because it can increase the number of seeds germinating in a short time and simultaneously. Key words: breaking seed dormancy, morphology, Pericopsis mooniana, physical quality, seed scarificatio

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