scholarly journals Physalis peruviana seed storage

2016 ◽  
Vol 20 (3) ◽  
pp. 263-268 ◽  
Author(s):  
Cíntia L. M. de Souza ◽  
Manuela O. de Souza ◽  
Ronaldo S. Oliveira ◽  
Claudineia R. Pelacani
Keyword(s):  
Moisture Content ◽  
Chloride Solution ◽  
Storage Period ◽  
Seed Storage ◽  
Germination Percentage ◽  
Physalis Peruviana ◽  
High Germination ◽  
Different Temperatures ◽  
Solanaceae Family ◽  
Kinetics Of

ABSTRACT Physalis peruviana belongs to Solanaceae family and has a high nutritional and nutraceutical potential. The production is intended for fruit consumption and the propagation is mainly by seeds. This study aimed to evaluate the influence of priming on the kinetics of germination of P. peruviana seeds stored at different temperatures. The seeds were stored at 5 and 25 °C in a chamber saturated with zinc chloride solution and in liquid nitrogen (-196 °C). Every 4 months, the seeds were removed from storage for evaluation of germination and moisture content in the laboratory and emergence and development of seedlings in greenhouse. During the last evaluation at 16 months, the seeds under the same conditions were subjected to salt stress. The moisture content varied during the storage period, but was always higher for seeds kept at -196 ºC. These seeds kept high germination percentage in water until 16 months, regardless of the tested temperature; however, in salt solution the germination percentage was significantly reduced.

scholarly journals Effect of Storage Treatment on Small White Ginger Rhizome Viability

2019 ◽  
Vol 4 (1) ◽  
Author(s):  
Melati Melati ◽  
Devi Rusmin
Keyword(s):  
Moisture Content ◽  
Room Temperature ◽  
Storage Period ◽  
Seed Storage ◽  
Zingiber Officinale ◽  
Germination Percentage ◽  
High Quality ◽  
Moisture Contents ◽  
Ginger Rhizome ◽  
And Storage

One problem for developing small white ginger (Zingiber officinale var. amarum) is theavailability of high quality rhizome seeds in right quantity and time. Seed rhizome will sproutquickly, and its quality will decreased in immature seed rhizome and in not good storage conditions.The main objective of the experiment was to study the best storage room conditions for storagerhizome seeds of small white ginger. The experiment was conducted in seed laboratory and storageroom of Research Institute for Medicinal and Aromatic Crops Bogor. The experiment wasconducted by randomized complete design with nine different storage, 3 replication and 25 sampleseach treatment. The treatments are 1) rhizome seeds storage in room temperature (control),(2)rhizome seeds storage in AC room (16–240C),(3) rhizome seed soaked in paclobutrazol 1000 ppmfor 4 hours then seeds storage in room temperature ( 4) put rhizome seeds in rack and cover bystraw, storage in room temperature (5) rhizome seed storage on straws in the greenhouse ( 6)rhizome seed storage in the greenhouse without straw ( 7) rhizome seed soaked in water during 1hour every month then dried naturally in 300C and storage in AC room (8) rhizome seed soakedin paclobutrazol 1000 ppm for 4 hour then storage in AC room ( 9) put rhizome in wood box andcover by rice straw and husk. Variables observed include moisture contents of ginger seed, lostweight of seed and germination percentage of rhizome seeds at the end of storage period. The resultof experiment indicated that the moisture content and weight rhizome seeds decrease after 2 months. After four months storage period, moisture content was still high above 80 %, exceptrhizome seeds in under ground. The rhizome seeds that store in AC room showed the bestperformance and thus, this treatment can be recommended for storage of small white gingerrhizome seeds for 4 months. The low moisture content (< 80%) of rhizome small white ginger seedswill decreased its viability.Keywords: Zingiber officinale var. amarum, seed, storage, viability

scholarly journals Biological features of seeds of a wild-growing species of Poterium polygamum

2022 ◽  
Vol 354 (11-12) ◽  
pp. 97-99
Author(s):  
M. A. Starostina ◽  
N. G. Lapenko
Keyword(s):  
Natural Population ◽  
Seed Viability ◽  
Storage Period ◽  
Seed Storage ◽  
Scientific Basis ◽  
The Third ◽  
Biological Features ◽  
High Germination ◽  
Grass Stand ◽  
The Subject

Relevance. Biological features (morphometric indicators, viability and germinating power) of Poterium polygamum seeds found in natural communites of the Stavropol Territory have been studied. The conservation of wild-growing plant species in the natural population and the rational use of their potential are relevant.Methods. Years of study — 2013–2021. The subject of the study is Poterium polygamum seeds. Seeds were collected in 2013. Studies were carried out according to the methods of studying seed material. Freshly harvested seeds and seeds of different shelf life were germinated in petri dishes at a temperature of 18–20 °C.Results. The collected seeds of Poterium polygamum are quite large. The length of the seeds is 4–5 mm, the width is about 2.5 mm. The mass of 1000 pieces of seeds on average was 10.59 grams. Complete absence of viability of freshly harvested Poterium polygamum seeds was revealed. After three months, seed viability was 97%. This is a shallow physiological rest associated with the post-harvest maturation period. During the storage of seeds, their high germination was established — from 70 to 100%. The duration of seed storage is 8 years. The largest number of germinated seeds and their germinating power were noted in the third year of their storage (100%). Seeds germinated on the third or fourth day. The differences between the viability of seeds and their germinating power are not great. In the eighth year of storage of Poterium polygamum seeds, viability and germinating power were slightly reduced. The storage period of seeds, in which they retain the ability to germinate and the germinating power, is long. It has been found that the wild species Poterium polygamum belongs to plants with a high (70 to 100%) viability. This species is regularly resumed in the natural population. The revealed biological features of Poterium polygamum seeds can become the scientific basis during the reconstruction of degraded natural grass stand and in selection work.

scholarly journals Pola Penurunan Viabilitas dan Pengembangan Metode Pendugaan Vigor Daya Simpan Benih Pepaya (Carica Papaya L.)

2017 ◽  
Vol 7 (3) ◽  
pp. 146
Author(s):  
Astryani Rosyad ◽  
M. Rahmad Suhartanto ◽  
Abdul Qadir
Keyword(s):  
Moisture Content ◽  
Aging Time ◽  
Seed Quality ◽  
Initial Moisture Content ◽  
Accelerated Aging ◽  
Storage Period ◽  
Seed Storage ◽  
Seed Vigor ◽  
Develop Model ◽  
Papaya Seed

<p>ABSTRACT<br />Information of seed quality during storage can be determined through the actual storage and storability vigor estimation. This study aimed at comparing effective accelerated aging method<br />between physical and chemical, and studying the seed deterioration during storage in ambient (T =28-30 0C, RH=75-78%) and AC (T =18-20 0C, RH =51-60%) condition with three levels of initial moisture content (8-10%, 10-12%, and 12-14%) for 20 weeks. The final objective of this research<br />was to develop model for storability vigor of papaya seed. Two experiments, accelerated aging and seed storage were conducted at Seed Laboratory, Department of Agronomy and Horticulture, Bogor Agricultural University from October 2015 to May 2016. A completely randomized design with nested factors and four replications was applied to both experiments. The results showed that physical accelerated aging using IPB 77-1 MMM machine was more effective than chemical accelerated aging using IPB 77-1 MM machine for papaya seed. The viability of seed stored in AC condition remained high until the end of the storage period, whereas it declined at 16 week storage period in the ambient condition. The viability of seed with initial moisture content of 12-14% declined faster than that of initial moisture content of 8-10% after 18 week storage periode. The model used to estimate the storability vigor of papaya seed accurately was the equation y = a + b expcx where y : storability vigor estimation, x : aging time and a,b,c : constant value. Simulation of storability vigor estimation with constant value of a, b, c and input of aging time can estimate storability seed vigor in actual storage.<br />Keywords: accelerated aging, IPB 77-1 MM machine, IPB 77-1 MMM machine, seed storage, simulation</p><p>ABSTRAK<br />Informasi mutu benih selama penyimpanan dapat diketahui melalui penyimpanan secara aktual dan pendugaan vigor daya simpan. Penelitian ini bertujuan untuk membandingkan metode<br />pengusangan cepat yang efektif antara fisik dengan kimia serta mempelajari pola penurunan viabilitas benih selama penyimpanan aktual pada kondisi simpan kamar (suhu =28-30 0C, RH =75-78%) dan AC (suhu =18-20 0C, RH =51-60%) dengan tiga tingkat kadar air awal (8-10%, 10-12%, dan 12-14%) selama 20 minggu. Tujuan akhirnya adalah membangun model vigor daya simpan benih pepaya. Penelitian pengusangan cepat dan penyimpanan dilakukan pada bulan Oktober 2015 sampai Mei 2016 di Laboratorium Benih, Departemen Agronomi dan Hortikultura, Institut Pertanian<br />Bogor. Kedua penelitian menggunakan rancangan acak lengkap tersarang dengan empat ulangan. Hasil penelitian menunjukkan bahwa pengusangan cepat secara fisik dengan alat IPB 77-1 MMM lebih efektif daripada pengusangan kimia dengan alat IPB 77-1 MM untuk benih pepaya. Viabilitas benih yang disimpan pada kondisi AC tetap tinggi hingga akhir periode simpan, sedangkan pada kondisi kamar penurunan viabilitas dimulai pada periode simpan 16 minggu. Benih yang disimpan dengan tingkat KA awal sebesar 12-14% lebih cepat mengalami penurunan viabilitas mulai periode simpan 18 minggu dibandingkan dengan benih dengan KA awal 8-10%. Hasil penelitian juga menunjukkan terdapat korelasi yang erat antara pola kemunduran benih pada pengusangan cepat dan penyimpanan aktual, sehingga model pendugaan vigor daya simpan (y) berdasarkan waktu pengusangan (x) dapat disusun dengan persamaan y = a + b expcx. Simulasi pendugaan vigor daya simpan dengan nilai konstanta a, b, dan c serta input waktu pengusangan dapat menduga vigor daya simpan benih selama penyimpanan aktual.<br />Kata kunci: alat IPB 77-1 MM, alat IPB 77-1 MMM, pengusangan cepat, penyimpanan benih,<br />simulasi</p>

scholarly journals Physiological quality of pink pepper seeds (Schinus terebinthifolia Raddi.) as a function of storage

2021 ◽  
Vol 38 (1) ◽  
pp. 144-157
Author(s):  
Thaísa De Oliveira Silveira ◽  
Madelon Rodrigues Braz ◽  
Gilmara Pires de Moura Palermo ◽  
Tiago Böer Breier
Keyword(s):  
Moisture Content ◽  
Storage Time ◽  
Storage Period ◽  
Seed Storage ◽  
Dry Weight ◽  
Native Forest ◽  
Alternative Source ◽  
Physiological Quality ◽  
And Storage

Seeds of native forest species for food and seedling production have a growing demand that impacts the need for studies involving seed storage in order to maintain good levels of germination quality. Thus, scientific analyzes that explore the physiological potential of the seeds of these species are necessary, especially for the pink pepper (Schinus terebinthifolia Raddi.), a species used as an alternative source of income for traditional communities and which has been arousing interest due to the consumption of its fruits as a condiment in the national and international market. This work aimed to assess the physiological quality of pink pepper seeds according to the storage period and seed size. The seeds came from a rural settlement, a pioneer in the extraction of pink pepper, in the state of Rio de Janeiro, Brazil. The seeds were evaluated for moisture content, germination, first count, length and dry weight of the germinated seedlings, during the period of time that they remained stored and the size of the seeds. The results allowed to conclude that: i) the germinative percentage of the stored pink pepper seeds decreased over the months; ii) the moisture content of the seeds decreased over the months evaluated iii) the different sizes of seeds did not show differences in germination and storage time and iv) values of length and dry weight of the seedlings did not differ according to the period of storage.

Effects of temperatures on survival of Aphelenchoides besseyi in prolonged storage of rice grains

Nematology ◽  
2020 ◽  
Vol 22 (10) ◽  
pp. 1169-1177
Author(s):  
Shigeru Hoshino ◽  
Katsumi Togashi
Keyword(s):  
Survival Rate ◽  
Storage Period ◽  
Seed Storage ◽  
Middle Part ◽  
Prolonged Storage ◽  
Instantaneous Rate ◽  
Aphelenchoides Besseyi ◽  
Different Temperatures ◽  
Effects Of Temperature ◽  
Rice Seeds

Summary The white-tip nematode, Aphelenchoides besseyi, is a seed-borne ectoparasite of the rice plant Oryza sativa. Nematodes in dried rice seeds are in dehydrated quiescence or anhydrobiosis and are reactivated by rehydration. To understand the persistent parasitism better, the effects of temperature on nematode survival were examined during prolonged periods of seed storage. There was a marked difference in the survival rate among different temperatures; survival was lower at 20 and 25°C than at −5 to 10°C after storage for 190 days. No nematodes survived a storage period of 1313 days at 20 and 25°C. When rice seeds were held at 5°C, the survival rate of nematodes decreased during a period of 7315 days. The estimated instantaneous rate of mortality per month was higher in the early and late parts of the period than in the middle part. Another nematode population also showed a reduction in the survival rate during 6553 days storage at 5°C. In storage at −30°C, survival was not affected during a period of 6485 days. After storage at −30°C for 6546 days, 96% of rice seeds germinated, whereas 60-96% of seeds of two groups germinated after storage at 5°C for 6610-7373 days. Therefore, prolonged storage of rice seeds at 5 or −30°C was unlikely to disrupt the connection between rice plants and A. besseyi.

scholarly journals Effects of Shell and Low Moisture Content on Peanut Seed Longevity

2002 ◽  
Vol 29 (2) ◽  
pp. 122-125 ◽  
Author(s):  
N. Kameswara Rao ◽  
D. V. S. S. R. Sastry ◽  
P. J. Bramel
Keyword(s):  
Moisture Content ◽  
Low Cost ◽  
Seed Storage ◽  
Cost Effective ◽  
Storage Conditions ◽  
Medium Term ◽  
Short Term ◽  
Effective Strategies ◽  
Arachis Hypogaea L ◽  
High Germination

Abstract Peanut (Arachis hypogaea L.) germplasm accessions in ICRISAT genebank are conserved as pods under medium-term conditions (4 C and 30% RH). Pod storage requires far greater space than seed storage and is more likely to be expensive, especially in a controlled environment. With the objective to evolve cost effective strategies for conservation, the survival of in-shell and shelled seeds of two peanut cultivars, ICGS 76 (virginia bunch) and JL24 (spanish), was studied under three different storage conditions— ambient (20-40 C and 30-80% RH), short term (23-25 C and 40-50% RH), and medium term (4 C and 30% RH). In-shell seeds had marginally greater longevity than shelled seed in all storage conditions. The differences in time for regeneration of in-shell and shelled seeds stored under medium term conditions were estimated to be less than 4 mo for both the cultivars. Because of the much reduced volume required for storage and the insignificant differences in regeneration interval, conservation of shelled seeds would be highly cost-effective under the controlled environmental conditions, as compared to in-shell seeds. Since storage at very low moisture contents was suggested as a simple and low cost option for conservation of seed lots required for short-term use, the longevity of peanut seeds (cv. ICGS 76) hermetically sealed with 3.6% moisture content was studied in comparison with seeds held at 5.8% moisture. The studies showed that peanut seeds hermetically stored at room temperature (23-25 C) with low moisture content (below 4%) could retain high germination (&gt; 85%) for up to 8 yr.

Dispersal and germination syndromes of tree seeds in a monsoonal forest in northern India

2005 ◽  
Vol 15 (1) ◽  
pp. 29-42 ◽  
Author(s):  
R.C. Thapliyal ◽  
S.S. Phartyal
Keyword(s):  
Seed Germination ◽  
Seed Storage ◽  
Germination Percentage ◽  
Cold Season ◽  
Poor Quality ◽  
Northern India ◽  
High Germination ◽  
Monsoon Forest ◽  
Mean Germination Time ◽  
Pre Treatment

This paper describes the dispersal–germination characteristics of seeds of 77 native tree species in a seasonal monsoon forest in Uttaranchal state, northern India. Results indicate that 50% of the species dispersed in the hot, dry summer months, 18% during the rainy season, 23% during the cold season and the remainder in late spring. Germination tests on fresh and laboratory-stored seeds revealed a relationship between morphological features of the fruit and both germination percentage and mean germination time (MGT). Highest mean germination (50%) was for dry-dehiscent fruits with winged wind-dispersed seeds, followed by dry-dehiscent fruits with non-winged seeds (38%) and seeds of dry-indehiscent fruits (37%). Lowest germination (29%) was for seeds from fleshy or pulpy fruits. MGT followed the reverse course. Germination data for seeds stored dry in the laboratory during one seeding cycle indicated six patterns of seed germination: (1) average germination percentage of fresh seeds lower than that of stored seeds, indicating an after-ripening requirement; (2) initial high germination percentage followed by low values, indicating a steep to moderate decline in viability following harvest; (3) no germination after 1 or 2 months of seed storage, due to complete loss of viability, indicating short seed longevity; (4) fresh seed germination in some species equalled the average germination value of stored seeds, indicating constant germination for one whole seeding cycle; (5) germination of both fresh and stored seeds remained consistently low throughout the season, indicating a requirement for some kind of pre-treatment or having poor quality of seeds; (6) initial high germination followed by decline and again increase, showing a seasonal rhythm of germination.

scholarly journals Pre-germinative treatments and seed storage of Psidium cattleyanum Sabine morphotypes

2020 ◽  
Vol 16 (4) ◽  
pp. 102-109
Author(s):  
Haron Victor Ferreira Camargo ◽  
Letícia Siqueira Walter ◽  
Mônica Moreno Gabira ◽  
Dagma Kratz
Keyword(s):  
Storage Period ◽  
Seed Storage ◽  
Germination Percentage ◽  
Transparent Plastic ◽  
Germination Time ◽  
Hand Control ◽  
Germination Speed ◽  
Mean Germination Time ◽  
Cold Chamber

This study aimed to evaluate the germination behavior of two morphotypes of P. cattleyanumsubmitted to storage and pre-germinative treatments. The experiment was designed in a factorial scheme 2 x 3 x 3 (morphotypes x storage periods x pre-germinative treatments) completely randomized, using for each treatment 5 replicates with 30 seeds. The seeds were stored in semipermeable packages in a cold chamber at 5 ± 2 °C, for 14, 45,and 90 days. After each storage period, the seeds were submitted to treatments to overcome dormancy: immersion in water at 80 °C,kept in imbibition for 24 and 48 hand control, without any treatment. The seeds were arranged under moistened substrate in transparent plastic boxes and allocated in a germination chamber at 25 °C and photoperiod of 8 h for evaluation of germination percentage (G), germination speed index (GSI)and mean germination time (MGT). The red morphotype seeds showed higher germination percentages than the yellow morphotype and did not have a reduction in these values after 90 days of storage. MGT for yellow morphotype was lower in all pre-germinativetreatments. The GSI had better results at 45 days in the control treatments and 24 h in immersion in water and 90 days for the three pre-germinative treatments. The red morphotype does not require pre-germinative treatments, while the yellow morphotype presents better germination when the seeds are stored for 45 days and immersed in water at 80 °C for 48 h.

scholarly journals Morphometry and Germination of Passovia pyrifolia, Struthanthus marginatus and Phoradendron mucronatum Diaspores

2018 ◽  
Vol 36 (0) ◽  
Author(s):  
J.M.L. AZEVEDO ◽  
C.G.G. SANTOS ◽  
C.S. CAIRES ◽  
J.C. ARAÚJO NETO ◽  
R.C. SOUZA
Keyword(s):  
Moisture Content ◽  
Germination Rate ◽  
Germination Percentage ◽  
Percentage Germination ◽  
Essential Characteristic ◽  
Germination Time ◽  
Randomized Design ◽  
Different Temperatures ◽  
Mean Germination Time ◽  
Completely Randomized Design

ABSTRACT: The goal of this work was to characterize morphometrically diaspores from three species of mistletoes (Passovia pyrifolia, Struthanthus marginatus e Phoradendron mucronatum), as well as to study its germination behavior according to temperature and luminosity. In germination tests, the completely randomized design was used, in factor scheme 4 x 2, with 4 replications of 15 diaspores. The factors for the first test were different temperatures and two diaspore conditions (intact and without epicarp). In the second test, factors were different light qualities and two diaspore conditions. The analyzed variables were: germination percentage, germination rate index (GRI) and mean germination time (MGT). Mistletoe’s diaspores present an elliptic shape with viscin layer, an essential characteristic for the dispersion of the species. In addition to this, they present a distinction as for the moisture content when compared to the Loranthaceae and Viscaceae, where the latter presents the highest content. Germination is greater at the alternated temperature of 20-30 oC for P. pyrifolia and P. mucronatum diaspores and 20 oC for S. marginatus. Luminosity interfered in the germination of P. mucronatum and S. marginatus but did not influence P. pyrifolia. The diaspore condition influenced the germination of the three studied species, observing a significant increase in their germination when the epicarp was removed. Temperature and luminosity interfere directly in the GRI and MGT of the three mistletoes species.

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

1992 ◽  
Vol 2 (1) ◽  
pp. 41-49 ◽  
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.

Sign in / Sign up

Export Citation Format

Share Document