scholarly journals ​Effect of Seed Treatments and Storage Period on Seed Health Parameters of Pea (Pisum sativum L.) under Ambient Storage Conditions

2021 ◽  
Author(s):  
Ravindra Kumar ◽  
Anuja Gupta ◽  
Kumkum Verma ◽  
Arjun Singh
Keyword(s):  
Pisum Sativum ◽  
Seed Quality ◽  
Storage Period ◽  
Storage Conditions ◽  
Untreated Seed ◽  
Pisum Sativum L ◽  
Ambient Storage ◽  
Vigour Index ◽  
Percent Germination ◽  
Treated Seed

Background: Pea (Pisum sativum L.) is an important leguminous crop utilized as vegetable and pulse, being an important source of proteins. Pea seeds harbour various mycoflora both in field and during storage, which plays important role in reducing seed viability, germination and vigour inflicting considerable losses in yield and quality. There is scarcely any recommendation available to maintain seed quality during storage of pea seeds, hence present study was carried out. Methods: Seeds of pea (cvs. Azad P. 1 and Arkel) were treated with Captan and Carbendazim 50%WP fungicides @ 2.0 g/Kg seed and stored under ambient conditions. The samples were drawn at three months interval to assess the effect of storage on seed quality parameters. The vigour index I, per cent germination and speed of germination of these seed samples were determined using ISTA rules. The detection of associated mycoflora in pea (Pisum sativum L.) seed samples was carried out by standard blotter method as recommended by International Seed Testing Association. Result: Total fourteen fungal species were found associated with different pea seed samples. Out of these, maximum incidence of Alternaria alternata (21.36%) followed by Aspergillus flavus (15.53%), A. fumigatus (14.56%), A. niger (11.60%) and Rhizopus stolonifer (9.71%), were recorded on untreated seed of pea cv. Azad P. 1, after 18 months of storage. The germination, speed of germination and vigour index of stored seed reduced with increase in storage period, whereas fungal incidence increased with the increasing storage period. Among the tested cultivars, germination in pea (cv. Arkel) remained above IMSCS even after 18 months of storage under ambient storage conditions. The maximum percent germination (99.0) was found in pea cv. Azad P. 1 seeds treated with Captan at 3 months of storage, whereas minimum percent germination (49.5) was found in untreated seed of pea cv. Azad P. 1 after 18 months of storage. The maximum speed of germination (23.88) was found in Captan treated seed of pea cv. Arkel at 0 month of storage and minimum speed of germination (3.52) was found in untreated seed of pea cv. Azad P. 1 at 18 months of storage. The maximum vigour index I (2339) was found in pea cv. Azad P. 1 (Captan treated seed) at 3 months of storage and minimum vigour index I (431) was found in untreated seed of pea cv. Azad P. 1 after 18 months of storage.

Studies on Seed Longevity of Pigeonpea (Cajanus cajan L.) and Chickpea (Cicer arietinum L.) under Ambient Storage Condition

2021 ◽  
Author(s):  
Ravindra Kumar ◽  
Anuja Gupta ◽  
Kumkum Verma
Keyword(s):  
Cicer Arietinum ◽  
Cajanus Cajan ◽  
Seed Quality ◽  
Seed Viability ◽  
Storage Period ◽  
Storage Condition ◽  
Quality Parameters ◽  
Cicer Arietinum L ◽  
Ambient Storage ◽  
Vigour Index

Background: Pulses are very crucial to meet the requirements of dietary proteins in the human diet especially for the predominantly vegetarian population in India. Pigeonpea [Cajanus cajan (L.) Millsp.] and chickpea (Cicer arietinum L.) are important pulses grown in India. The seeds of these crops are highly vulnerable to various microorganisms, both in the field and during storage, which play an important role in reducing the seed viability, germination and vigour causing considerable loss in yield and quality. There is no suitable recommendation available to maintain seed quality during storage of pulses, hence present study was undertaken. Methods: Seeds of pigeonpea and chickpea were treated with Captan and Carbendazim 50% WP fungicides @ 2.0 g/Kg of seed and stored under ambient condition. The samples were drawn at three months interval to assess the effect of storage on seed quality parameters. The vigour index I, seed germination and speed of germination of these seed samples were determined using ISTA rules. The detection of seed mycoflora in pigeonpea and chickpea seed samples was carried out by the blotter test as recommended by the International Seed Testing Association. Result: Total sixteen fungal species were recorded on stored seeds. Maximum incidence of Aspergillus fumigatus (19.83%), A. flavus (14.88%), A. niger (12.40%), Alternaria alternata (11.57%), Fusarium oxysporum (8.26%), Rhizopus stolonifer (7.44%) and Penicillium notatum (5.79%) were recorded on untreated seed of pigeonpea cv. P. 2001 after 18 months of storage. The per cent germination, speed of germination and vigour index of the stored seeds decreased with the increase in the storage period whereas the total number of fungi increased with the storage period, irrespective of treatments. Among the tested cultivars, germination in pigeonpea (cv. P. 991) remained above IMSCS ( greater than 75%) upto 18 months of storage under ambient storage condition. However, the germination of pigeonpea cv. P. 2001 seed could be maintained above IMSCS ( greater than 75%) up to 12 months only. In chickpea (local cultivar) seed, the germination remained above IMSCS ( greater than 85%) up to 9 months only under ambient storage, however seed treatment with either Captan or Carbendazim could prolong the longevity upto 12 months of storage.

Effect of Integrated Nutrient Management on Seed Vigour Potential of Fenugreek (Trigonella foenum-graecum L.) during Ambient Storage

2019 ◽  
Author(s):  
Ovais Hamid Peerzada ◽  
V. S. Mor ◽  
O. S. Dahiya
Keyword(s):  
Nutrient Management ◽  
Seed Quality ◽  
Inorganic Nitrogen ◽  
Dry Weight ◽  
Ambient Conditions ◽  
Seed Vigour ◽  
Ambient Storage ◽  
Seedling Length ◽  
Vigour Index ◽  
Trigonella Foenum Graecum L

The experiment was conducted at Department of Seed Science and Technology CCS, Haryana Agriculture University, Hisar, Haryana from 2013-15 and comprised of seventeen treatment combinations of manures (viz., FYM and Vermicompost), bio-fertilizers (viz., Rhizobium and PSB) and fertilizers. The freshly harvested fenugreek seeds of all the seventeen treatment plot combinations were stored in plastic containers under ambient conditions up to a period of eighteen months. Seed quality was assessed at a regular interval of six months. A significant decline in seed quality was observed in all the nutrient combinations as the period of ageing increased. It was observed that the treatment combination of Rhizobium and PSB along with 75% Recommended Dose of Nitrogen (RDN) recorded significantly higher germination % (87.33%), seedling length (24.77 cm), dry weight (7.5 mg), vigour index-I (2163) and vigour index-II (657) followed by PSB with 100% RDN and Rhizobium with 100% RDN after eighteen months of ambient storage as compared to control. The electrical conductivity (333 µS cm-1g-1) was also recorded minimum in the treatment Rhizobium and PSB along with 75% RDN followed by PSB with 100% RDN and Rhizobium with 100% RDN after the period of ambient storage while the maximum was recorded in control. The study highlighted that the slightly reduced dose of inorganic nitrogen was best when applied in combination with bio-fertilizer (Rhizobium+PSB) for maximizing the storage potential of fenugreek seed as compared to the rest of treatments.

Physiology of Oil Seeds. X. Seed Quality of Peanut Genotypes as Affected by Ambient Storage Temperature1

1992 ◽  
Vol 19 (2) ◽  
pp. 72-77 ◽  
Author(s):  
Darold L. Ketring
Keyword(s):  
Ambient Temperature ◽  
Seedling Growth ◽  
Seed Quality ◽  
Storage Temperature ◽  
Storage Conditions ◽  
Ambient Conditions ◽  
Ambient Storage ◽  
Wide Range ◽  
Genotype Diversity ◽  
Field Emergence

Abstract Proper storage of peanut (Arachis hypogaea L.) pods following drying is a critical step in maintenance of seed quality for the next planting season. The objective of this study was to examine the effect of ambient storage temperature (similar to farmers stock peanuts stored in warehouses) on seed germination and seedling vigor of selected peanut genotypes. Peanuts were grown in the field for three successive seasons. Pods were harvested, dried, and shelled. Seed samples were taken for storage under ambient conditions, humidity effects were eliminated by storing the seeds in plastic freezer bags in sealed containers. Seasons were: (1) 1986, 19 months storage at ambient temperature, (2) 1987, 7 months storage at ambient temperature, and (3) 1988, seeds without storage. When comparisons were made among genotypes within seasons, exposure to Season 1 conditions resulted in the least germination and seedling growth, but a wide range of genotype diversity occurred. Germination of seeds from Seasons 2 and 3 ranged from 81 to 98%, and significant differences in seedling growth occurred among genotypes. When comparisons were made across Seasons, the data indicated a significant storage effect, which resulted in different seed quality for individual genotypes. Usually field emergence was significantly different among genotypes and was highly correlated with germination for all seasons. Generally, emergence was negatively correlated with slow seedling growth and positively correlated with rapid seedling growth. Thus, for seeds of lower vigor (Seasons 1 and 2), rapid seedling growth was particularly critical for early, uniform emergence (10 DAP) in the field. Genotypes were significantly different in extent of seed quality reduction and field emergence both within and across storage periods. Genotype diversity to ambient storage conditions suggests there is genetic potential to improve longevity of seed quality during storage and enhance stability of field emergence.

CONTROL OF ROOT DISEASE IN PEAS BY SEED TREATMENT IN SOUTHERN ALBERTA

1964 ◽  
Vol 44 (6) ◽  
pp. 531-537 ◽  
Author(s):  
F. R. Harper
Keyword(s):  
Pisum Sativum ◽  
Seed Treatment ◽  
Root Disease ◽  
Infested Soil ◽  
Fusarium Spp ◽  
Untreated Seed ◽  
Pisum Sativum L ◽  
Southern Alberta

The effectiveness of seven different fungicide treatments on peas (Pisum sativum L.) was determined on irrigated land in southern Alberta from 1961 to 1963. Emergence and yield were higher from treated than from untreated seed. Captan, Semesan, and Bayer 47531 were the most effective fungicides.The fungicides did not influence either the type or frequency of isolation of pathogens from roots at harvest. Fusarium spp. and Pythium spp. were the fungi most frequently isolated from diseased roots. Pythium was isolated from seeds germinated for 3 days at 15 °C in moist, naturally infested soil, but no pathogens were isolated from seeds treated with captan. Although emergence from untreated seed of six varieties of peas differed with location and variety, emergence from the seed treated with 65% captan was uniformly high. Captan protected both sound and damaged seed from attack by pathogens.

scholarly journals GERMINABILITY OF VARIETIES OF BEAN (Phaseoulos Vulgaris L.) AND OKRA (Abelmoschus Esculentus L. Moench) UNDER LOW TEMPERATURE STORAGE CONDITION

2021 ◽  
Vol 2 (2) ◽  
pp. 92-103
Author(s):  
Indira Ariyarathna ◽  
Sarath Weerasena ◽  
Chalinda K. Beneragama
Keyword(s):  
Low Temperature ◽  
Seed Quality ◽  
Storage Period ◽  
Storage Condition ◽  
Germination Percentage ◽  
Storage Duration ◽  
Packing Materials ◽  
Moisture Field ◽  
Vigour Index ◽  
Field Emergence

Bean and okra are common vegetables cultivated in the most regions of Sri Lanka.  The seeds of these crops are mainly stored in cold storage as bulk before releasing retail lots to sales outlets. Commercial growers and gardeners buy seeds in bulk or in packages at retail stores. Although certified seeds are frequently tested by the seed testing laboratories, they do not guarantee the maximum field emergence. Certified seed lots of two pole bean varieties, ‘Keppetipola Nil’ (KN) and ‘Bandarawela Green’ (BG) and two okra varities,’MI-5’ and ‘Haritha’ were stored in poly sack and polypropylene bags under controlled temperature (17±1 °C) and relative humidity (RH) (52-55%) over a two-year period. Bulk seeds of bean and okra varieties packed in polypropylene and poly sack bags depicted a high germination percentage throughout the storage period for two years. Seed quality parameters, seed germination, seed moisture, field emergence and vigour index significantly varied with the storage duration and declined in varieties. Significant differences in moisture, field emergence and vigour index were recognized as affected by the packing materials in all varieties except MI-5. Both Poly sack and polypropylene packing materials were found suitable to maintain viability at the minimum seed certification standards for two years of storage period. Poly sack was more appropriate than polypropylene to keep viability for more than 2 years of storage under low temperature and RH condition. These findings would help seed handlers including seed producers and seed sellers to store crop seeds between growing seasons in the tropical environment.

scholarly journals Water Stress during Reproductive Stages Affects Seed Quality and Yield of Pea ( Pisum sativum L.)

Crop Science ◽  
1997 ◽  
Vol 37 (4) ◽  
pp. 1247-1252 ◽  
Author(s):  
Jean‐Albert Fougereux ◽  
Thierry Doré ◽  
Fabienne Ladonne ◽  
André Fleury
Keyword(s):  
Water Stress ◽  
Pisum Sativum ◽  
Seed Quality ◽  
Pisum Sativum L

scholarly journals Qualidade de sementes de jiló (Solanum gilo Raddi – Solanaceae) armazenadas em ambiente não controlado

ForScience ◽  
2020 ◽  
Vol 8 (1) ◽  
pp. e00663
Author(s):  
Carlos Manoel Oliveira
Keyword(s):  
Environmental Conditions ◽  
Seed Quality ◽  
Seedling Emergence ◽  
Storage Period ◽  
Storage Conditions ◽  
Germination Percentage ◽  
Emergence Time ◽  
Tropical Regions ◽  
Physiological Quality

Os setores de produção e de conservação de sementes dependem diretamente de trabalhos que determinem as melhores condições de armazenamento e que, consequentemente, garantam o maior período possível de manutenção da qualidade fisiológica da semente. Em regiões tropicais, há uma maior limitação no que tange à manutenção da qualidade fisiológica durante o período de armazenamento, principalmente em ambiente não controlado, cuja variação das condições ambientais pode influenciar sobremaneira a qualidade final de um lote de sementes. Objetivou-se, com o presente trabalho, avaliar a qualidade de sementes de duas cultivares de jiló (Solanum gilo Raddi), armazenadas em condições ambientais não controladas. O delineamento experimental utilizado foi o de blocos casualizados com 5 repetições, em esquema fatorial 2x5, sendo duas cultivares de jiló (Morro Grande e Português) e 5 períodos de armazenamento (0, 30, 60, 90 e 120 dias de armazenamento). Avaliou-se a porcentagem de germinação, a porcentagem de emergência, o Índice de Velocidade de Emergência, o Coeficiente de Variação no Tempo, o Tempo Médio da Emergência, os Índices de Incerteza e de Sincronia da Emergência e a Frequência Relativa da Emergência de plântulas. A cultivar Português se apresentou com os melhores índices de porcentagem de germinação, porcentagem de emergência, índice de velocidade de emergência, tempo médio da emergência e coeficiente de variação do tempo da emergência, quando as sementes foram armazenadas por até dias em ambiente não controlado. A cultivar Português é indicada aos produtores de jiló visando produção de mudas, pois se mostrou superior a cultivar Morro Grande quando armazenadas por até 30 dias em ambiente não controlado. Após 30 dias de armazenamento, a utilização de sementes das duas cultivares não é indicado, pois a porcentagem de germinação cai consideravelmente. Palavras-Chave: Fitotecnia. Produção de sementes. Armazenamento.Viabilidade.   Seed quality of scarlet eggplant stored in environmental conditions not controlled Abstract The sectors of production and conservation of seeds depend directly from studies that determine the best storage conditions and that consequently guarantee the longest possible period of maintenance of physiological quality of seed. In tropical regions, there is a major limitation regarding the maintenance of physiological quality during storage period mainly in uncontrolled environment, whose variation of environmental conditions can greatly influence the final quality of a seed lot. The objective of this final paper was to evaluate the quality of seeds of two cultivars of scarlet eggplant (Solanun gilo Raddi), stored in environmental conditions not controlled. The experimental design used was randomized blocks with 05 replications in a factorial 2 x 5, being two cultivars of scarlet eggplant (Morro Grande and Portuguese) and 05 storage periods (0, 30, 60, 90 and 120 days of storage). Was evaluated the Percentage of Germination, Percentage of Emergence, Emergence Speed Index, Coefficient of Variation of the Time, Average Time of Emergency, Indexes of Uncertainty and Sync the Emergence and Relative Frequency of Seedling Emergence in the time. The Portuguese cultivar presented the best rates of Germination Percentage, Emergency Percentage, Emergency Speed Index, Average Emergence Time and Emergence Time Variation Coefficient, when seeds were stored for up to 30 days in an uncontrolled environment. The Portugues cultivar is indicated to jiló producers aiming seedling production because it was superior to Morro Grande cultivar when stored for up to 30 days in an uncontrolled environment. After 30 days of storage, the use of seeds from both cultivars is not indicated because the germination percentage drops considerably.  Keywords: Phytotechny. Seed production. Storage. Viability.

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