scholarly journals TEF [Eragrostis TEF (ZUCC.) Trotter] Seed Quality Variation in East Gojjam Zone, Ethiopia

2015 ◽  
Vol 2 (2) ◽  
pp. 97-104
Author(s):  
Melkam Anteneh
Keyword(s):  
Seed Quality ◽  
Seedling Emergence ◽  
Dry Weight ◽  
National Standards ◽  
Eragrostis Tef ◽  
Short Root ◽  
Vigor Index ◽  
Purity Analysis ◽  
Health Quality

East Gojjam is one of the major tef seed growing areas of Ethiopia. The main themes of this study were to assess the physical, physiological and health quality of seed in Gozzamin and Enarji Enawga districts, Amhara Regional state, in 2009/2010 cropping season. Data were done by employing SAS (9.0) softwares to analyse the physical, physiological and health quality of seed samples. There was a significat difference in physical purity among seed samples. The analytical purity of the tef seed grown in all PAs was above the national standards for commercial seed. The most abundant seeds of other species in purity analysis were Vitgroe, Sitaria spp, Trampgrass samples which appeared in 31% (4), 23% (3) and 15% (2), respectively. The overall average mean germination percentage was 88.2% with the range of 76.6% to 93.0% and the highest value was recorded for seed obtained from Enarji Enawga F8 (93.0%) followed by F1 (92.3) from Gozzamin. The lowest vigor index 1 was recorded for F7 from Enarji Enawga because of short root length (199.99cm). The highest vigor index II was recorded for samples collected from ESE with 1.68mg mean because of higher seedling dry weight. There was a positive and highly significant correlation (r = 0.603**, p < 0.001) between germination percent and seedling emergence percent. These indicated that as the germination percent increased and seedling emergence percent also increased. Seed storage facilities at farmers are inferior to those at the Ethiopian Seed Enterprise but during shipments should therefore be timed so that seeds can be sown with the minimum delay after receipt. So, shipment of sensitive seeds by air is desirable. Other, wise in conclusion, to enhance tef productivity in east Gojjam zone through supply of improved varieties and quality seed it is important to integrate formal and farmer (informal) seed system.  

scholarly journals Temporal variation in seed quality of Indian spinach preserved in different containers

2016 ◽  
Vol 5 (2) ◽  
pp. 51-57 ◽  
Author(s):  
M Kamruzzaman ◽  
S Khatun ◽  
A Rakib ◽  
MI Hoque ◽  
MH Rani
Keyword(s):  
Moisture Content ◽  
Seed Quality ◽  
Initial Moisture Content ◽  
Dry Weight ◽  
Germination Percentage ◽  
Seedling Vigor ◽  
Fresh Weight ◽  
Seed Technology ◽  
Vigor Index

The experiment was conducted to investigate the seed quality of Indian spinach for three months stored at different containers (Plastic pot, polythene bag and cloth bag) during 2013-2014 at Seed Technology Laboratory of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur. The initial moisture content of the seed was 9.89% with 75.00% germination. However, after two months, the seed had a different range of increased moisture content with reduced germination percentage depending upon the packing materials. Among the three containers, seeds stored at cloth bag absorbed more moisture (14.36%) from surrounding atmosphere followed by the moisture content, 12.67% and 11.50% of polythene bag and airtight plastic pot, respectively. Seeds stored at plastic pot, polythene bag and cloth bag exhibited 65.00, 64.00 and 50.00 per cent germination, respectively. Similarly, the fresh weight and dry weight of seedling and seedling vigor were also decreased. The seeds of plastic pot were good in term of germination capacity, fresh and dry weight and vigor index in comparison to those stored at cloth bag and polythene bag.Int. J. Agril. Res. Innov. & Tech. 5 (2): 51-57, December, 2015

scholarly journals Harvesting Criteria and Drying Methods to Improve the Quality of Foxtail Millet Seeds (Setaria italica L. Beauv.)

2021 ◽  
Vol 8 (03) ◽  
pp. 168-176
Author(s):  
Putri Aulia Lainufar ◽  
Abdul Qadir ◽  
M. Rahmad Suhartanto ◽  
Sintho Wahyuning Ardie
Keyword(s):  
Seed Quality ◽  
Germination Rate ◽  
Foxtail Millet ◽  
Seed Viability ◽  
Dry Weight ◽  
Maximum Growth ◽  
Growth Potential ◽  
Growth Speed ◽  
Vigor Index

Foxtail millet is annual grasses with grains that are smaller than those of sorghum, rice, and wheat, and is considered one of the minor economic crops but with nutritional values similar to other major food crops. The development of millet as major cereal crop is considered challenging due to the low quality of its seeds, and studies have been conducted to improve millet’s seed quality. We conducted this study to determine the harvesting criteria of foxtail millet seeds based on the change in color of the panicles. We also wanted to determine the drying treatment, and evaluate the relationship between the position of the seed on the panicles and the seed viability and vigor. The first experiment was arranged based on a completely randomized design with panicle color as the first factor (green, yellow 75%, and brown) and drying time as the second factor (0 hours, 24 hours, 48 hours, 72 hours). The second experiment was arranged in a completely randomized design with seed position as the main factor (base, middle, tip). The study was conducted on two genotypes of millet, i.e. “BOTOK 4” and “BOTOK 10”. The highest seed quality of “BOTOK 4” and “BOTOK 10” genotypes were obtained when the panicles were brown and dried for 72 hours; the seed chlorophyll content was the lowest and water content was 8.88%, with the highest viability and vigor, i.e., germination rate of 88.3%-90%, maximum growth potential of 92%-95.3%, normal sprout dry weight 596-620 mg, vigor index of 33.6% - 21.6%, and growth rate of 18.2%-17.1% etmal-1. The highest seed viability and vigor in “BOTOK 4” genotypes were obtained from the base position, i.e., 78.7% germination rate, maximum growth potential of 83.7%, vigor index of 56.5%, growth speed of 19.6 etmal-1, normal sprout dry weight of 48 mg, radicle length of 3.3 cm) and “BOTOK 10” genotypes from the middle position with 91.5% germination, maximum growth potential of 97.2%, vigor index  of 21.7%, growth speed of 17.0% etmal-1, and normal sprout dry weight 61 mg.

scholarly journals Foliar fungicide and environments on the physiological quality of oat seeds

2014 ◽  
Vol 36 (1) ◽  
pp. 15-24 ◽  
Author(s):  
Eliege Aparecida de Paiva Oliveira ◽  
Claudemir Zucareli ◽  
Inês Cristina de Batista Fonseca ◽  
José Carlos de Oliveira ◽  
Alberto Sérgio do Rego Barros
Keyword(s):  
Grain Yield ◽  
Seed Quality ◽  
Block Design ◽  
Seedling Emergence ◽  
Accelerated Aging ◽  
Dry Weight ◽  
Oat Seeds ◽  
Physiological Quality ◽  
Foliar Fungicide

The oat crop is of great economic importance and seed production depends on several factors (biotic and abiotic) that can alter its quality. Thus, the study aimed to evaluate the physiological quality of oat seeds produced with and without application of foliar fungicide in contrasting environments. The experimental design was a randomized block design in a factorial 6x2 (cultivar x fungicide) for each site, with four replications. The physiological quality of seeds was evaluated by grain yield, germination, first count, accelerated aging, moisture content after accelerated aging, seedling length, seedling dry weight, electrical conductivity and seedling emergence in field. Data were subjected to joint and individual analysis of variance, and means were compared by Tukey’s test at 5%. Grain yield in Mauá da Serra is superior to Londrina, Parana State - Brazil, but the seed quality is lower, although all cultivars have shown germination above 90% in the two cultivation sites. Cultivars FAEM 6 DILMASUL and UPFA OURO showed no disease, indicating possible resistance. The application of the product has a beneficial effect on seed germination and vigor, even in the absence of disease.

scholarly journals Evaluation of seed physiological quality of papaya elite hybrids, their reciprocal crosses and parents

2013 ◽  
Vol 35 (2) ◽  
pp. 190-197 ◽  
Author(s):  
Célia Maria Peixoto de Macedo ◽  
Messias Gonzaga Pereira ◽  
Deisy Lúcia Cardoso ◽  
Roberto Ferreira da Silva
Keyword(s):  
Seed Quality ◽  
Seedling Emergence ◽  
Dry Weight ◽  
Fresh Weight ◽  
Reciprocal Effect ◽  
F1 Hybrid ◽  
Reciprocal Crosses ◽  
Randomized Design ◽  
Physiological Quality

This study aimed to evaluate the physiological quality of seeds of three hybrid combinations and their reciprocals, as well as the selfed parents, and to estimate genetic parameters associated with seed quality, and possible reciprocal effects. The experiment used F1 hybrid papaya seeds and their reciprocal crosses between JS12 and Sunrise Solo 72/12, Sekati and Waimanalo, and the seeds of the parents and two varieties, totaling 12 treatments in a completely randomized design with four replications. Weight of 1,000 seeds, germination, seedling fresh weight and seedling dry weight, first count, speed of germination and seedling emergence were determined. There was no xenia effect for weight of 1,000 seeds and seedling fresh weight. The reciprocal effect was not expressed for germination and seedling emergence, while for the other traits, it was not expressed only for JS12 x Sekati. Differences among hybrids and their parents occurred as a result of the action of pollen in the crosses, and justified by early heterosis. The most sensitive vigor tests to discriminate differences in performance of hybrids and their reciprocals were speed of germination and seedling fresh weight. There were high magnitudes of the estimates for the genotypic determination coefficient for most of the evaluated variables, except for seedling fresh weight.

scholarly journals Kualitas benih dan pertumbuhan bibit cabai (Capsicum frutescens l.) pada perlakuan suhu dan wadah penyimpanan yang berbeda

2018 ◽  
Vol 2 (2) ◽  
pp. 137
Author(s):  
Dimas Bima Taghfir ◽  
Syaiful Anwar ◽  
Budi Adi Kristanto
Keyword(s):  
Room Temperature ◽  
Seed Quality ◽  
Storage Temperature ◽  
Aluminum Foil ◽  
Dry Weight ◽  
Storage Space ◽  
Storage Container ◽  
Vigor Index ◽  
Number Of Leaves

Setting the temperature of the storage space of seeds and storage containers will greatly affect the quality of the seed. The aim of this research was to study the effect of temperature treatment, storage container and their interaction on seed quality and seedling growth of chilli. The study was conducted in Jetis Village and Laboratory of Plant Physiology and Breeding, Faculty of Animal and Agricultural Sciences, Diponegoro University from January to June 2017. The study was conducted using nesting experiments on the basis of Completely Randomized Design (RAL). The first factor was Storage Temperature (R1 = Room Temperature 24-29 oC, R2 = Refrigerator Temperature 5oC) and second factor was storage container nested at storage temperature that was (P1 = Alumunium foil, P2 = Paper and P3 = Plastic). Each treatment had 5 replications and each replication consisted of 100 seeds, so there were 30 experimental units. The data were analyzed by using analysis of variance (ANOVA) and continued with test of HSD (Honesty Significant Difference) 5% significance level. The results showed that the storage temperature (5oC) temperature increased the temperature and the seed vigor index was larger than the room temperature (28oC), the aluminum foil packaging produced the maximum growth potential and germination rate was higher than the plastic and paper packaging but there was no different growth rate and index vigor. Low storage space temperatures (5oC) can not maintain maximum seed quality where the 4 parameters were still below the standard quality of the seed. Seeds stored in low temperature (5oC) rooms producedfresh weight and dry weight of seedlings larger than high temperature (28oC), but the number of leaves, seed height and hypothetical vigor index were not significantly different. The aluminum foil packaging producedfresh weight and dry weight of seeds higher than plastic and paper packaging. However, the number of leaves, the height of seed and the hypothetical vigor index were notsignificantly different. Keywords : Temperature, container store, seeds quality, seedling growth, chilli.

scholarly journals Physiological quality of dynamically cooled and stored soybean seeds

2013 ◽  
Vol 35 (3) ◽  
pp. 353-360 ◽  
Author(s):  
Jacson Zuchi ◽  
José de Barros França-Neto ◽  
Carlos Sigueyuki Sediyama ◽  
Adílio Flauzino de Lacerda Filho ◽  
Múcio Silva Reis
Keyword(s):  
Dynamic Process ◽  
Seed Quality ◽  
Seedling Emergence ◽  
Accelerated Aging ◽  
Superior Performance ◽  
Soybean Seeds ◽  
Tropical Regions ◽  
Physiological Quality ◽  
Feasible Alternative

Storage is an important step in the production of soybean seeds, mainly in tropical regions, where high temperatures can drastically reduce seed quality. The storage at cooler temperatures may be a feasible alternative to preserve seed quality during storage. The objective of this study was to evaluate the physiological quality of soybean seeds artificially cooled by a dynamic process and stored in an environment, with non controlled temperature and relativity humidity. Two seed lots of cultivars Monsoy 8757, TMG 115 RR and BRS Valiosa RR were used. After processing and during packaging the seeds were cooled to 18 ºC by a dynamic process. Seed samples were collected after 0, 60 and 120 days of storage, using the following parameters germination, accelerated aging, seedling emergence in sand, speed of emergence index, electrical conductivity, tetrazolium and seed health. Although soybean seeds artificially cooled by the dynamic method may have slightly superior performance in maintaining physiological quality during storage in non-refrigerated warehouse, for lots of high physiological quality, these advantages are not observed.

scholarly journals Fruit maturation stage on the physiological quality of maroon cucumber seeds

2019 ◽  
Vol 49 ◽  
Author(s):  
Cleisson Dener da Silva ◽  
Andréia Márcia Santos de Souza David ◽  
Josiane Cantuária Figueiredo ◽  
Jorge Luiz Rodrigues Barbosa ◽  
Rayane Aguiar Alves
Keyword(s):  
Seed Quality ◽  
Seedling Emergence ◽  
Accelerated Aging ◽  
Dry Mass ◽  
Maturation Stage ◽  
Physiological Maturity ◽  
Physiological Quality ◽  
Photography Analysis ◽  
The Ideal

ABSTRACT To obtain seeds of high physiological quality, it is of paramount importance to define the ideal harvest moment, which oftentimes corresponds to the period when the physiological maturity is reached. This experiment aimed to study the maturation process and determine the best harvest season of maroon cucumber fruits (Liso Gibão cultivar), in order to reach the maximum physiological seed quality. The flowers were labeled during the anthesis and the fruits harvested at 14, 21, 28, 35, 42, 49 and 56 days after the anthesis (DAA). The fruits had their visual aspects registered by photography analysis and, later, the seeds were extracted for physical (water and dry matter contents) and physiological (germination, seedling emergence, emergence speed index, accelerated aging and electrical conductivity) analyses. It was observed that the seeds reach the maximum dry mass (8.08 mg seed-1) between 47 and 49 DAA. However, the seed physiological maturity, characterized by a maximum germination (70 %) and vigor, occurs at 56 DDA. The best season to harvest seeds with a higher physiological quality takes place from 49 to 56 DDA, when the fruits present a yellowish color.

scholarly journals Different harvest times and physiological quality of coriander seeds

2016 ◽  
Vol 20 (2) ◽  
pp. 133-137
Author(s):  
Emilly R. Alkimim ◽  
Andréia M. S. de S. David ◽  
Tiago V. Sousa ◽  
Cleiton G. Rodrigues ◽  
Hugo T. R. Amaro
Keyword(s):  
Experimental Design ◽  
Moisture Content ◽  
Seed Quality ◽  
Seedling Emergence ◽  
Full Bloom ◽  
Factors Influencing ◽  
Emergence Rate ◽  
Physiological Quality ◽  
First Moment

ABSTRACT The season of harvest is one of the most important factors influencing seed quality. This study evaluated the effect of different harvesting times on the physiological quality of Coriandrum sativum L. seeds, cv. Palmeira. The experimental design was completely randomized, with six treatments (harvest times) and four replications. The experiment was conducted during the months of April to October 2010. The first moment to harvest seeds was carried out 15 days after full bloom, when approximately 50% of plants were in flowering phase. Other harvests (22, 29, 36, 43 and, 50 days after bloom) were carried out at 7 days intervals until the seeds reached 16.0% of moisture, which occurred in the 6th harvest. Immediately after each harvest, the seeds were analysed for water content, germination and vigor (first count, seedling emergence and emergence rate index). The harvest season most suitable for C. sativum seeds cv. Palmeira occurred between 46 and 50 days after flowering, when the seeds have the highest physiological quality and moisture content between 20 and 16%.

scholarly journals Seed Harvesting at Different Maturity Stages of Siliqua on Seed Quality of Rapeseed-Mustard Varieties

2020 ◽  
Vol 22 (1) ◽  
pp. 121-130
Author(s):  
AHMMR Talukder ◽  
M Biswas ◽  
MNH Miah ◽  
MA Kashem ◽  
L Nahar
Keyword(s):  
Seed Quality ◽  
Germination Percentage ◽  
Maturity Stage ◽  
Pale Yellow ◽  
Maturity Stages ◽  
Vigor Index ◽  
Root And Shoot Length ◽  
Golden Yellow ◽  
Full Maturity

A laboratory experiment with three replicates was conducted at Plant Physiology Division research laboratory of Bangladesh Agricultural Research Institute (BARI) during November, 2015 to observe the seed quality of rapeseed-mustard by harvesting at different maturity stages of siliqua. Seeds were collected from siliqua of different rapeseed-mustard varieties and harvesting was made at different maturity stages based on their external color i.e., Green, pale yellow, Golden yellow and full maturity stage of siliqua. After harvesting of siliqua as per external color seeds were dried naturally about 48 hours and were packed in polythene and stored at laboratory environment for next season uses. Under laboratory condition seeds were evaluated in terms of moisture and germination percentage, speed of germination, root and shoot length, vigor index etc. Moisture content was found significantly at elevated level in respect of mustard varieties of BARI Sarisha-14 (V2), BARI Sarisha-6 (V3) and Tori-7 (V4).  The variety Tori-7 and BARI Sarisha-14 showed  the highest vigor index-II & vigor index-I, respectively. Among the harvesting stages, most of the parameters showed the highest standards in seeds harvesting at full maturity of siliqua stage (H4) followed by the golden yellow siliqua stage (H3) and pale yellow siliqua stages seeds (H2).Irrespective of rapeseed-mustard varieties seed collected from golden yellow and pale yellow siliqua stages could  be stored up to twelve month for next season without significant loss in terms of germination percentage and vigor followed by full maturity stages of siliqua harvested seeds (H4). Bangladesh Agron. J. 2019, 22(1): 121-130

scholarly journals Intracultivar selection for seed quality of soybeans in an ultra-low-density selection model (Honeycomb Selection Designs)

2020 ◽  
Vol 42 ◽  
pp. e44299
Author(s):  
Karla Bianca de Almeida Lopes ◽  
Antônio Eduardo Pípolo ◽  
José Henrique Bizzarri Bazzo ◽  
Claudemir Zucareli
Keyword(s):  
Seed Quality ◽  
Seedling Emergence ◽  
Selection Model ◽  
Accelerated Ageing ◽  
High Productivity ◽  
Significant Difference ◽  
Soybean Genotypes ◽  
Honeycomb Selection ◽  
Standard Cultivar

Selecting genotypes that combine high productivity with high seed quality is a challenge. The exploration of intracultivar genetic variation is an alternative to significantly increase the annual genetic gain and maximize the selection efficiency for both characteristics. The present study aimed to identify intracultivar variation to improve the seed quality of soybean genotypes derived from the commercial cultivar BRS 284, selected using the HSD (Honeycomb Selection Designs) model. Soybean genotypes selected for two years from two environments with contrasting edaphoclimatic characteristics, according to the principles of the HSD selection model, were cultivated under competition by using the experimental model in randomized blocks with four replicates and evaluated regarding the productivity and physiological quality of seeds. The results showed that genotype 284-3 presented a greater mass of 100 seeds, germination, vigour after accelerated ageing test, seedling emergence and emergence speed index than the other genotypes in both environments, with no significant difference in the standard cultivar regarding seed yield. The HSD method was an efficient selection method to identify intracultivar variation to improve cultivar performance.

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