Review on: Effect of Seed Storage Period and Storage Environment on Seed Quality

Increased productivity of cocoa needs high quality of cocoa seeds which are generally provided by certified seed gardens located far from smallholders farm, where seed delivery takes long time and may reduce physiological quality of seeds. One effort to maintain the seed quality is by treatment the seeds with polyethylene glycol6000 (PEG 6000). This study was aimed to study the interaction of PEG 6000 concentration and storage period on cocoa seed quality, and to determine the best concentration of PEG 6000 and storage period to maintain cocoa seed quality. The research was conducted in seed storage room, seed laboratory and green houseof PPPPTK, Cianjur. The experimental design used was a factorial completely randomized design and each combination treatment repeated three times. The first factor was concentration of PEG 6000 of 0%, 20%, 40%, and 60%, and the second factor was the storage period of 3 weeks, 6 weeks, 9 weeks, and 12 weeks. The results showed that concentration of PEG 60% with three weeks storage period was able to minimize the number of moldy seeds. The concentration of PEG 20%, 40%, and 60% were able to prevent seed germination in storage until six weeks. Concentration of PEG 6000 20% was able to maintain moisture content, seed germination, and germination rate.Key words:cocoa seed, storage, recalcitrant, PEG

Download Full-text

Influence of lignin content in soybean seed coat on the incidence of the storage fungus Aspergillus flavus

Revista Brasileira de Sementes ◽

10.1590/s0101-31222012000400003 ◽

2012 ◽

Vol 34 (4) ◽

pp. 541-548 ◽

Cited By ~ 2

Author(s):

Ísis Barreto Dantas ◽

João Almir de Oliveira ◽

Heloisa Oliveira dos Santos ◽

Édila Vilela Resende Von Pinho ◽

Sttela Dellyzete Veiga Franco da Rosa

Keyword(s):

Electrical Conductivity ◽

Aspergillus Flavus ◽

Seed Coat ◽

Seed Quality ◽

Lignin Content ◽

Soybean Seed ◽

Storage Period ◽

Seed Storage ◽

Seed Health ◽

Physiological Quality

Seed quality may be affected by several factors, including permeability, color, and lignin content in the seed coat. This study aimed at evaluating influence of lignin content in the tegument of seed samples of six different soybean cultivars, in which half of each sample was inoculated with the fungus Aspergillus flavus, on the physical and physiological quality, and on the seed health, during 180 days storage period, under cold chamber with controlled conditions of temperature and RH. For that, at each interval of 60 days, samples were removed, and the physiological quality of these seeds was assessed by means of moisture and lignin contents; and by tests of seed health, germination, and electrical conductivity. The moisture content of seeds remained constant during all storage period. In the seed health test, it was found that inoculation was efficient, once the minimum incidence of the fungus in the inoculated seeds was 85%. In the germination test, there was a trend of reduction on percentage germination with the increase in storage period. However, there was an increase on electrical conductivity of seeds assessed. It was concluded that there is no interference of the lignin content in the seed coat on the resistance to infection by the fungus Aspergillus flavus, even after seed storage for a period of 180 days.

Download Full-text

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

Jurnal Hortikultura Indonesia ◽

10.29244/jhi.7.3.146-154 ◽

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

ABSTRACT 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 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 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. Keywords: accelerated aging, IPB 77-1 MM machine, IPB 77-1 MMM machine, seed storage, simulationABSTRAK Informasi mutu benih selama penyimpanan dapat diketahui melalui penyimpanan secara aktual dan pendugaan vigor daya simpan. Penelitian ini bertujuan untuk membandingkan metode 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 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. Kata kunci: alat IPB 77-1 MM, alat IPB 77-1 MMM, pengusangan cepat, penyimpanan benih, simulasi

Download Full-text

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

Revista de Ciencias Agrícolas ◽

10.22267/rcia.213801.150 ◽

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.

Download Full-text

Evaluasi ketahanan simpan enam belas genotip benih jagung hibrida Unpad pada periode simpan empat bulan

Kultivasi ◽

10.24198/kultivasi.v17i1.15854 ◽

2018 ◽

Vol 17 (1) ◽

Cited By ~ 1

Author(s):

Anne Nuraini ◽

Sumadi Sumadi ◽

Muhamad Kadapi ◽

Agus Wahyudin ◽

Dedi Ruswandi ◽

...

Keyword(s):

Seed Quality ◽

Good Condition ◽

Storage Period ◽

Seed Storage ◽

Rapid Reduction ◽

Seed Technology ◽

Short Period ◽

Significant Difference ◽

Hybrid Maize ◽

Seed Storability

Abstract. Seed storage is a post-harvest activity that is done to maintain the seed quality before planting. The problem often encountered in seed storage is the rapid reduction of seed quality in short period of time. Seed storability is important to maintain seed quality in good condition. The aim of this research was to find out the best seed storability of 16 genotypes of UNPAD Hybrid Maize Seeds after 4 months storage period. This research was done by identificating best seed storability after some storage period of single hybrid maize seed, namely, DR (Downey Resistance), BR, MDR (mutant of DR), and MBR (mutant of BR) which are a collection of Maize Development Team Plant Breedung Laboratory Faculty of Agri-culture Universitas Padjadjaran. This research was conducted from October 2016 until February 2017 at Seed Technology Laboratory Faculty of Agriculture Universitas Padjadjaran. Completely Randomized Design was used and repeated two times. Data were tabulated and analyzed using the F test, while to test the significant difference further were using Scott Knott test level of 5%. The result showed that there is significant difference in electrical conductivity value, 1000 grain weight, seed germination capacity, vigor index, seed growth simultaneously, and normal seedling dry weight after 4 months storage period. MDR 18.5.1, DR 17, 4BR 157, 4MDR 14.1.1 were the best genotype on seed storability after 4 months storage period.Keywords : maize, genotypes, seed storability, storage period Sari. Penyimpanan benih merupakan kegiatan pascapanen yang dilakukan untuk memper-tahankan mutu benih hingga benih tersebut siap ditanam. Permasalahan yang sering dihadapi pada penyimpanan benih yaitu penurunan mutu benih secara cepat dalam periode yang belum terlalu lama. Tujuan dari penelitian ini adalah untuk mengetahui ketahanan simpan 16 genotip benih jagung hibrida UNPAD yang terbaik setelah periode simpan empat bulan. Penelitian ini dilakukan dengan mengiden-tifikasi ketahanan simpan terbaik setelah bebe-rapa periode simpan dari genotip benih jagung hibrida tunggal, yaitu genotip DR (Downey Resistance), BR, MDR (mutan DR), dan MBR (mutan BR) yang merupakan koleksi Tim Pengembangan Jagung Laboratorium Pemuliaan Tanaman Fakultas Pertanian Universitas Padja-djaran. Penelitian dilakukan pada bulan Oktober 2016 sampai Februari 2017 di Labora-torium Teknologi Benih Fakultas Pertanian Universitas Padjadjaran. Penelitian ini dilakukan dengan menggunakan Rancangan Acak Leng-kap (RAL) 2 ulangan. Data dianalisis mengguna-kan uji F, sedangkan perbedaan yang signifikan antar perlakuan digunakan uji Scott Knott pada taraf nyata 5%. Hasil penelitian menunjukkan terda-pat perbedaan yang signifikan pada parameter daya hantar listrik, bobot 100 butir, daya berkecambah, indeks vigor, keserempakan tum-buh, serta bobot kering kecambah normal setelah periode simpan 4 bulan. Genotip MDR 18.5.1, DR 17, 4BR 157, 4MDR 14.1.1 merupakan genotip yang memiliki ketahanan simpan setelah periode simpan 4 bulan.Kata kunci: jagung, genotip, ketahanan simpan, periode simpan

Download Full-text

Moisture adsorption isotherms and quality of seeds stored in conventional packaging materials and hermetic Super Bag

10.1101/463026 ◽

2018 ◽

Author(s):

Muhammad Amir Bakhtavar ◽

Irfan Afzal ◽

Shahzad Maqsood Ahmed Basra

Keyword(s):

Adsorption Isotherms ◽

Seed Quality ◽

Storage Period ◽

Seed Storage ◽

Packaging Materials ◽

Seed Moisture Content ◽

Moisture Adsorption ◽

Moisture Contents ◽

Seed Moisture

AbstractSeed moisture content (SMC) is an important attribute to seed quality. Maintaining seed dryness throughout supply chain (The Dry Chain) prevents seed germination and quality losses. Ambient relative humidity (RH) and temperature affect seed moisture and thereof seed moisture isotherm. Present study was conducted to compare the moisture adsorption isotherms of wheat, maize, cotton and quinoa seeds packed in hermetic Super Bag and traditional packaging materials including paper, polypropylene (PP), jute and cloth bags. Seeds were incubated at 60, 70, 80 and 90% static RH. Nearly straight line moisture isotherms for all crop seeds were obtained in Super Bag. Seed moisture contents increased in traditional packaging materials with increasing RH. At higher level of RH, moisture contents increased slightly (1-2%) in Super Bag, whereas this increase was much higher in traditional packaging materials (≈9% higher than original SMC at 90% RH). In second study, seeds were dried to 8 and 14% initial seed moisture contents using zeolite drying beads and were stored in hermetic and traditional bags for a period of 18 months. For all crop seeds, germination was severely affected in all packaging materials both at 8 and 14% initial SMC except storage in Super Bag at 8% SMC. Wheat seed stored in Super Bag at 8% SMC almost maintained initial germination while germination of cotton, maize and quinoa seeds declined 7%, 14% and 30% respectively in Super Bag at 8% SMC. Seed storage in Super Bag can help to prevent the significant increase in seed moisture at higher RH as is evident from moisture isotherm study, thus helps to preserve quality of maize, wheat, cotton and quinoa seeds by maintaining The Dry Chain throughout the storage period.

Download Full-text

Dry bean seed quality in Honduras

The Journal of Agriculture of the University of Puerto Rico ◽

10.46429/jaupr.v75i2.3575 ◽

1969 ◽

Vol 75 (2) ◽

pp. 125-137

Author(s):

Luis Del Río ◽

Paul Hepperly ◽

James Beaver

Keyword(s):

Seed Quality ◽

Fungal Infections ◽

Seed Storage ◽

Fusarium Spp ◽

Fusarium Equiseti ◽

Dry Bean ◽

Fusarium Semitectum ◽

Bacillus Spp ◽

And Storage ◽

Penicillium Spp

Low germination and high levels of fungal infections were found in seed of June plantings of dry beans in Honduras, Fusarium equiseti (12-62% incidence) was the dominant internally seedborne fungus of that season. October plantings showed fewer (P = 0.05) seed infections and less discoloration. Fusarium semitectum (7 to 21%) was the dominant seed microorganism. Stored seed (December to June) lost about 50% of its vigor and size without losing germination (89%). Bacillus licheniformis, with up to 37% incidence, was the dominant seed storage microorganism. Storage microorganisms included Aspergillus spp., other Bacillus spp., Penicillium spp., Chaetomium spp., Mucor spp., and Flavobacterium spp. Fusarium spp. varied in their recovery after storage. Fusarium semitectum was eliminated in storage, whereas F. equiseti increased. Levels of Fusarium spp., in recently harvested seed, and Bacillus and Aspergillus spp., in stored seed, were excellent indicators of seed quality losses in the field and storage in Honduras. Germination data alone was not a good indicator of seed quality because low vigor seed had excellent germination.

Download Full-text

Seed quality of rice cultivars stored in different environments

Journal of Seed Science ◽

10.1590/s2317-15372014000100004 ◽

2014 ◽

Vol 36 (1) ◽

pp. 32-39 ◽

Cited By ~ 3

Author(s):

Elizabeth Rosemeire Marques ◽

Eduardo Fontes Araújo ◽

Roberto Fontes Araújo ◽

Sebastião Martins Filho ◽

Plínio César Soares

Keyword(s):

Seed Quality ◽

Accelerated Aging ◽

Storage Period ◽

Rice Cultivars ◽

Germination Test ◽

Randomized Design ◽

Physiological Quality ◽

Completely Randomized Design ◽

And Storage

The objective of this study was to evaluate dormancy and physiological quality of seeds of rice cultivars during storage in different environments. After harvesting, the seeds of three rice cultivars (Seleta, Curinga and Relâmpago) were dried in the sun, to reach moisture content at around 13%. Then, they were packed in paper and stored in four environments: 5 ± 2 ºC / 70 ± 5% RH, 12 ± 2 ºC / 70 ± 5% RH, 18 ± 2 ºC / 65 ± 5% RH and in uncontrolled condition of temperature and relative humidity (natural). Physiological quality was evaluated at the beginning and at 3, 6, 9 and 12 months of storage by germination test, electrical conductivity, accelerated aging and sand emergence. The experiment was conducted in split plots in a completely randomized design with three replications. Environmental factor was applied in the plots, cultivars in the subplots and storage period in subplots. Cultivar Seleta showed higher dormancy, which was surpassed during storage regardless of environment conservation. In general, seeds stored in natural environment showed lower physiological quality. Only the seeds of cultivar Seleta, regardless of the environment, maintained germination above the minimum required for commercialization until six months of storage.

Download Full-text

Seed quality response of Urochloa humidicola cv. Llanero to drying surfaces and environments1

Pesquisa Agropecuária Tropical ◽

10.1590/1983-40632018v4851396 ◽

2018 ◽

Vol 48 (3) ◽

pp. 306-315

Author(s):

Alan Mario Zuffo ◽

Joacir Mario Zuffo Júnior ◽

Everton Vinicius Zambiazzi ◽

Fábio Steiner

Keyword(s):

Seed Quality ◽

Germination Rate ◽

Seed Storage ◽

Brachiaria Humidicola ◽

Randomized Design ◽

Physiological Quality ◽

Completely Randomized Design ◽

Quality Response ◽

And Storage

ABSTRACT The drying process and storage may interfere in the quality of creeping signalgrass seeds [Urochloa humidicola (Rendle.) Morrone & Zuloago, syn. Brachiaria humidicola (Rendle.) Schweick.]. This study aimed to evaluate the physical, physiological and sanitary quality of creeping signalgrass cv. Llanero seeds submitted to drying surfaces and environments and stored for two periods (1 and 8 months). The experiment was arranged in a completely randomized design, in a 4 × 2 × 2 + 2 factorial arrangement, with four drying surfaces (soil, asphalt, concrete and ceramic floor), two drying environments (seeds exposed to the sun or shade), two seed storage periods (1 and 8 months) and two additional treatments with drying in paper bags under laboratory conditions (control) and stored for 1 or 8 months, with four replicates. The water content, viability by the tetrazolium test, electrical conductivity, germination rate, germination rate index and seed sanitary quality were measured. Drying at full sun impaired the physiological quality of the seeds due to the high temperatures (46.8-51.0 ºC) of the drying surface; however, reduced the incidence of pathogens. The drying of seeds in paper bags under shade results in a higher physiological quality, but the sanitary quality is compromised. However, the pathogens present in the seeds did not inhibit their viability and vigor. The storage for eight months reduces the seed quality.

Download Full-text

Influence of plant extracts, storage containers and storage duration on the physiological quality of watermelon (Citrullus lanatus (Thunb.) Mansf.) seeds stored under ambient conditions

Acta agriculturae Slovenica ◽

10.14720/aas.2020.116.2.1440 ◽

2020 ◽

Vol 116 (2) ◽

pp. 229

Author(s):

Tolulope Olaitan KEHINDE ◽

Olatunde Azeez BHADMUS ◽

Joseph OLUFELO

Keyword(s):

Seed Quality ◽

Storage Period ◽

Ambient Conditions ◽

Storage Duration ◽

Seedling Vigour ◽

Storage Container ◽

Storage Containers ◽

And Storage ◽

Water Melon

Watermelon seed being an oily seed is prone to rapid deterioration of its quality, hence maintaining quality during storage is germane. The study therefore investigated the effect of crude plant powder, storage containers and storage duration on the seed quality of two varieties of watermelon seeds. Seed lots each of 100 g of each variety were treated with 10 g of four crude plant powders of clove basil leaf, red chilli pepper fruit, garlic, neem leaf and a synthetic fungicide. All samples were stored in three storage containers (envelope, tin and glass bottle). Treated seeds were stored under ambient conditions for 180 days. Germination and seedling vigour were determined at 180 day time course after storage. Data were subjected to mean separation using Duncan’s Multiple Range Test. Significant differences were observed in the quality traits examined in water melon due to differences in variety, seed treatment, storage container and storage period. ‘Kaolak’ was the best in storage in terms of seedling vigour and viability. Glass bottle was identified as the best storage container in maintaining seed quality of water melon throughout the storage period. The use of organic materials especially neem and clove basil leaf powder proved much better for maintaining germinability and seedling vigour and extension of seed longevity than inorganic material.

Download Full-text