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 Drying and physiological quality of palheteira seeds (Clitoria fairchildiana R.A. Howard)

2020 ◽  
Vol 9 (9) ◽  
pp. e858998157
Author(s):  
Érica Coutinho David ◽  
Bressa Karolina Dias Cardoso ◽  
Josiene Amanda dos Santos Viana ◽  
Eniel David Cruz
Keyword(s):  
Moisture Content ◽  
Seed Quality ◽  
Seed Storage ◽  
Germination Percentage ◽  
Hot Water ◽  
Degraded Land ◽  
Seed Moisture Content ◽  
Seed Moisture ◽  
Physiological Quality

Knowledge about seed storage behavior is important to preserve plant species. Clitoria fairchildiana R.A.Howard is an endemic species with medicinal properties, it is used in the recovery of degraded land. The objective of this study is to evaluate the effect of drying on the physiological quality of C. fairchildiana seeds. Seeds were oven dried along with silica gel for 18 days and in intervals of 2 or 3 days, samples were removed to assess the seed moisture content. This was done in an oven at 105±3 oC for 24h, using four replicates with 10 seeds each. After undergoing the above-mentioned treatment, a sample of seeds was stored in the freezer (-18 ºC) for 3 months. Sowing was carried out in plastic trays in a sand and sawdust mixture (1:1), previously sterilized in hot water (100 oC) for two hours. Seeds were left to germinate in a laboratory with no temperature and relative humidity control. Germination tests were performed over 14 days with daily counts of the number of emerged seedlings. The percentage of seed germination, abnormal seedlings and dead seeds were obtained 14 days after sowing. The experimental design was completely randomized with four replications of 25 seeds. The reduction of seed moisture content from 18.5% to 5.6% affected physiological seed quality causing a reduction in the germination percentage and an increase in dead seeds and abnormal seedling percentage. C. fairchildiana seeds are classified as intermediate and they can be desiccated up to 8.6% with no reduction in physiology quality.

scholarly journals Production and quality of chickpea seeds in different sowing and harvest periods

2018 ◽  
Vol 40 (2) ◽  
pp. 146-155 ◽  
Author(s):  
Ramon Ivo Soares Avelar ◽  
Cândido Alves da Costa ◽  
Delacyr da Silva Brandão Júnior ◽  
Humberto Alencar Paraíso ◽  
Warley Marcos Nascimento
Keyword(s):  
Moisture Content ◽  
Seed Quality ◽  
Block Design ◽  
Seed Moisture Content ◽  
Randomized Design ◽  
Seed Moisture ◽  
Minas Gerais State ◽  
Physiological Quality ◽  
Factor Data

Abstract: The objective of this study was to evaluate the production, and the physical and physiological quality of ‘BRS Aleppo’ chickpea seeds in the city of Montes Claros, Minas Gerais State, and their ideal harvest point. A randomized complete block design was used, in a 3x5 factorial arrangement, with three sowing periods (May 12th, June 23rd and July 22nd 2015) and five harvest seasons (100, 107, 114, 121 and 128 days after sowing) with seven replications. The following productive parameters were determined: number of seeds, number of empty pods, production and yield. For seed quality evaluations, the completely randomized design was used. The following evaluations were done: seed moisture content, dry matter, biometry, 1,000-seed weight and germination. For the harvest season factor, data were submitted to analysis of variance and comparisons average by Tukey’s test (p<0.05). The regression analysis was performed and coefficients were tested with the t-test. Seed production was higher when sowing was done in May and when the harvest was performed close to 114 days after sowing, with a yield reaching 5.31 ton/ha-1 and 10.7% seed moisture content. If sowing is delayed, there is a risk of rainfall during the harvest season, and seed quality is compromised.

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

scholarly journals Evaluation of the physiological quality of anadenenthera peregrina (L.) Speg. seeds during storage

2009 ◽  
Vol 33 (1) ◽  
pp. 27-33 ◽  
Author(s):  
Daniel Santos Pinho ◽  
Eduardo Euclydes de Lima e Borges ◽  
Viviana Borges Corte ◽  
Luiz Carlos Bhering Nasser
Keyword(s):  
Electrical Conductivity ◽  
Storage Temperature ◽  
Storage Period ◽  
Seed Priming ◽  
Seed Moisture ◽  
Physiological Quality ◽  
Viable Seeds ◽  
Cold Chamber ◽  
Constant Percentage

The aim of this experiment was to evaluate the effect of storage temperature on the viability and vigour of A. peregrina seeds. Seeds of A. peregrina harvested in Viçosa-MG, in September 2005 were used. The seeds were stored in the Laboratory of Forest Seeds Analysis (LASF) of the Universidade Federal de Viçosa (UFV), in a cold chamber, under approximately 5ºC over150 days. The seeds were stored under 20ºC for 150 days more. Seed moisture was determined after oven-drying at 105 ± 3ºC for 24 hours. The seeds were analyzed monthly using germination, tetrazolium and electrical conductivity tests and Osmopriming during 300 days, with four repetitions of 25 seeds. A. peregrina seeds kept a constant percentage of germination and viable seeds under the tetrazolium test for five months of storage, under either 5ºC and 20ºC. The electrical conductivity test showed significant differences in relation to the storage period, proving to be more sensitive than the standard germination test. Seed priming in PEG -0,4 MPa solution was not efficient in recovering the viability and vigor of the stored seeds at 5ºC and 20ºC.

scholarly journals INFLUENCE OF SOYBEAN SEED MOISTURE CONTENT IN THE RESPONSE TO SEED TREATMENT IN SOYBEAN

2018 ◽  
Vol 5 (2) ◽  
pp. 91-96 ◽  
Author(s):  
Marcos Altomani Neves Dias ◽  
André Kitaro Mocelin Urano ◽  
Deborah Bueno Da Silva ◽  
Silvio Moure Cicero
Keyword(s):  
Moisture Content ◽  
Seed Treatment ◽  
Soybean Seed ◽  
Soybean Seeds ◽  
High Moisture ◽  
Seed Moisture Content ◽  
Seed Moisture ◽  
Physiological Quality ◽  
Seed Respiration ◽  
Key Parameter

Seed treatment (ST) is an important practice for soybean crop. This research had the objective to evaluate the influence of seed moisture content in the response to different spray volumes (SV) used for seed treatment in soybean, considering effects on seed physiological quality. Three seed lots with distinct moistures were used: 7.2%, 10.1% and 13.0%. Untreated seeds (control) and three SV were tested: 8, 13 and 18 mL kg-1. All lots received the same treatment combination, containing insecticide, fungicide, fertilizer and biostimulant. This combination represented 8 mL kg-1 of SV; the doses of 13 and 18 mL kg-1 were obtained by adding 5 and 10 mL kg-1 of water, respectively. Evaluations of seed physiological quality consisted of electrical conductivity, seed respiration, germination and vigor tests. Results of all tests demonstrates that low-moisture soybean seeds (7.2%) are negatively affected by seed treatment within an SV range of 8 to 18 mL kg-1, while untreated seeds with equal moisture are not affected. Oppositely, high-moisture seeds (13.0%) are not affected by the SV tested, while intermediate-moisture seeds (10.1%) are affected by the higher SV. This result highlights seed moisture as a key parameter to be managed before soybean ST, aiming to maintain a high physiological quality.

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 Seed longevity of Buchanania siamensis in reclaiming salt-affected areas in Thailand

2020 ◽  
Vol 21 (2) ◽  
Author(s):  
Yongkriat KU-OR ◽  
NISA LEKSUNGNOEN ◽  
CHATCHAI NGERNSAENGSARUAY ◽  
TUSHAR ANDRIYAS
Keyword(s):  
Moisture Content ◽  
Room Temperature ◽  
Arable Land ◽  
Seed Longevity ◽  
Salt Tolerant ◽  
Short Term ◽  
Storage Duration ◽  
Seed Moisture Content ◽  
Seed Moisture ◽  
Storage Methods

Abstract. Ku-or Y, Leksungnoen N, Ngernsaengsaruay C, Andriyas T. 2020. Seed longevity of Buchanania siamensis Miq. in reclaiming salt-affected areas in Thailand. Biodiversitas 21: 743-747. Inland salinity is a grave threat to soil fertility as it causes loss of arable land. Salt-tolerant species, such as Buchanania siamensis Miq., can be used for the reclamation of land affected by salinity. We investigated the appropriate conditions to store the seeds of B. siamensis and the storage duration after which the seeds can still germinate. Storage methods included cooling at 4°C and storing at room temperature (between 25-30°C). Seeds kept at 4°C had low germination (6.75% ± 1.71), with longevity of only up to a week, compared to seeds stored at room temperature, which had germination of 94% ± 4.00 and could be stored for more than 200 days. Seed-longevity test was conducted at 14 levels (the number of storage days). Germination was reduced by 50% after 3.5 months, indicating that the seed could only be stored for the short term. The seeds were classified as having an intermediate behavior in which the germination increased exponentially with increasing seed moisture content. We recommend that seeds be stored at a temperature between 25 and 30°C, with sowing done within 3.5 months to obtain germination at or above 50%.

scholarly journals Incidence of Sclerotinia sclerotiorum and the physical and physiological quality of soybean seeds based on processing stages

2013 ◽  
Vol 35 (4) ◽  
pp. 409-418 ◽  
Author(s):  
Heria de Freitas Teles ◽  
Larissa Leandro Pires ◽  
Marcos Gomes da Cunha ◽  
Flavio Pereira dos Santos ◽  
Francisco Ameloti Neto
Keyword(s):  
Sclerotinia Sclerotiorum ◽  
Fungal Pathogens ◽  
Soybean Seeds ◽  
Seed Moisture Content ◽  
Mycelial Form ◽  
Seed Processing ◽  
Seed Moisture ◽  
Physiological Quality ◽  
Glycine Max L

Soybean (Glycine max L. Merrill) is infected by a large number of fungal pathogens, among them white mold agent [Sclerotinia sclerotiorum (Lib) de Bary]. The objective of this study was to verify the effect of the seed-processing stages on the physical and physiological qualities and on the incidence of S. sclerotiorum in soybean seeds. In this study, seeds from eight cultivars coming from production fields naturally infested in the counties of the State of Goiás, Brazil, from two harvests (2009/2010 and 2010/2011), were used. Samples were collected in the processing stages: hopper, pre-cleaning, discard one (from pre-cleaning), cleaning, sieve classifiers, spiral, gravity table, and discard two (after cleaning until processing ending). The following parameters were evaluated: seed- moisture content, physical purity, germination and tetrazolium. Additional tests and the detection of S. sclerotiorum in paper roll and the neon method were performed. The processing of soybean seeds improves the physical and physiological quality of the seed lots, in addition to eliminating sclerotia. The stages of pre-cleaning and cleaning significantly reduce sclerotia in seed lot. The amount of sclerotia in the sample is not necessarily correlated with the incidence of S. sclerotiorum in mycelial form.

scholarly journals Germination and vigor of stored Jatropha (Jatropha curcars L.) seeds

2018 ◽  
Vol 40 (1) ◽  
pp. 52-59
Author(s):  
Solange Carvalho Barrios Roveri Jose ◽  
Antonieta Nassif Salomão ◽  
Luis Alberto Martins Palhares de Melo ◽  
Izulmé Rita Imaculada Santos ◽  
Bruno Galvêas Laviola
Keyword(s):  
Seed Germination ◽  
Moisture Content ◽  
Initial Moisture Content ◽  
Storage Conditions ◽  
Seed Vigor ◽  
Plastic Bag ◽  
Physiological Quality ◽  
Jatropha Seeds ◽  
Seed Water Content

Abstract: Jatropha seeds are classified as orthodox. However, since it is an oil seed species, adequate storage conditions are required to ensure their longevity. The objective of this work was to evaluate the physiological quality of jatropha seeds stored in different environments and packaging, for periods of 3, 9 and 15 months. Three types of seed packaging bags (high density plastic bag, aluminized envelope and multiwall paper bag) were used, and the storage environments were cold and dry chamber (20 °C and 15% RH, constant), refrigerator (7 ± 3 °C, 48 ± 8% RH) and laboratory conditions (25 ± 3 °C, 51 ± 7% RH). The initial moisture content and seed germination were 7.1% and 89%, respectively. During storage, the physiological quality (germination and vigor) and moisture content of the seeds were evaluated. Seed water content ranged from 3.3 to 7.7%, depending on the permeability of the packaging and the storage environment. The highest longevity (15 months) without loss of viability was observed for jatropha seeds with initial moisture of 7.1%, packed in semipermeable plastic. Seed vigor was maintained, regardless of the environment and the type of packaging used, for up to nine months of storage.

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