Effect of Different Seed Processing Methods on Seed Recovery and Seed Quality of Onion cv. Arka Kalyan

2017 ◽  
Vol 5 (5) ◽  
pp. 644-648
Author(s):  
Koteshi Lamani ◽  
2020 ◽  
Vol 24 (2) ◽  
pp. 85-88
Author(s):  
Miladin Kostić ◽  
Vojin Đukić ◽  
Aleksandar Ilić ◽  
Danka Dujović ◽  
Velimir Lončarević ◽  
...  

The soybean harvest in 2019 began at the end of August. The quality of the natural seed was very high. The moisture content of the harvested seeds ranged from 7.1 % to 14.1 %. Thanks to this humidity, there was no need to dry the seeds, which is very important given the fact that drying soybeans can reduce the quality. Seed germination ranged between 82 % and 96 %. It should be noted that 97 % of seeds were harvested with germination greater than 85 % while about 65 % of seeds had germination above 90 %. The weight of 1000 grains averaged about 160 g. Soybean seed processing started on time and without major problems. The purity of the processed seed was on average 99.4 %. Of the total amount of processed seeds, about 72 % of seeds had germination greater than 85 %. The achieved seed quality was better compared to the one in 2018.


Genetika ◽  
2010 ◽  
Vol 42 (3) ◽  
pp. 425-434 ◽  
Author(s):  
Djura Karagic ◽  
Slobodan Katic ◽  
Aleksandar Mikic ◽  
Milka Vujakovic ◽  
Dragan Milic ◽  
...  

Three field pea genotypes (NS Junior, Jezero and Javor) have been assessed for effects of genotype and mechanical damage during harvest on most important parameters of the physical quality of seed. Four harvest treatments were examined (hand harvest, mechanized harvest at 500, 650 and 800 rpm). After harvest, purity of harvested seed and percentages of seeds damaged by insects, seeds with cracked seed coat and broken seeds were analyzed. Highest contents of seeds with damaged seed coat (9.0%) and broken seeds (11.3%) were found in Javor, the genotype with largest seeds. After seed processing, seed vigor, germination, proportion of atypical seedlings and 1000-seed weight were determined. Lowest values of seed vigor and germination (79.8% and 84.9%, respectively) and the largest proportion of atypical seedlings (11.4%) were found in the genotype Javor. Highly significant correlations were found between seed vigor, germination and atypical seedlings on one side and 1000-seed weight on the other (r=-0.53, r=-0.51, and r=0.60, respectively). Damages that increase the portion of atypical seedlings have the largest impact on the quality of pea seeds. This characteristic is determined by the genotype, which should be kept in mind when defining objectives of field pea breeding programs.


Author(s):  
Vish wanath ◽  
Ravi Hunje ◽  
R. Gurumurthy ◽  
M.V. Manjunatha

2014 ◽  
Vol 2 (2) ◽  
pp. 93-100
Author(s):  
Shahnaj Yesmina ◽  
Moushumi Akhtarb ◽  
Belal Hossain

The experiment was conducted to find out the effect of variety, nitrogen level and harvesting time on yield and seed quality of barley. The treatments used in the experiment consisted of two varieties viz. BARI Barley 4 and BARI Barley 5, three harvesting time viz. 35, 40 and 45 Days after Anthesis (DAA) and nitrogen levels viz. 0, 70, 85 and 100 kg N ha-1 . The experiment was laid out in a spilt- spilt-plot design with three replications assigning the variety to the main plot, harvesting time to the sub-plots and nitrogen level to the sub-sub plots. Variety had significant effects on the all yield attributes except fertile seeds spike-1 . Seed quality parameters viz. normal seeds spike-1 , deformed seeds spike-1 , germination (%) and vigour index were statistically significant. The variety BARI Barley 5 produced higher grain yield and seed quality than BARI Barley 4. Grain yield from BARI Barley 5 and BARI Barley 4 were 4.59 t ha-1 and 4.24 t ha-1 , respectively. Significantly, the highest 1000-seed weight (46.90 g) was produced by BARI Barley 5 than (37.90 g) BARI Barley 4. The result revealed that harvesting time had significant effect on yield and yield attributes and seed quality parameters. Seed yield was highest (4.65 t ha-1 ) when the crop harvested at 40 DAA and it was increased linearly from 35 DAA. Maximum quality seed and 1000-seed weight (43.20 g) was obtained when the crop harvested at 40 DAA. All the yields, yield attributes and seed quality parameters were significantly influenced by nitrogen levels. The highest grain yield (5.14 t ha-1 ) was obtained when BARI Barley 5 variety was fertilized by 100 kg N ha-1 and the lowest (3.14 t ha-1 ) was obtained from control treatments. Normal seeds spike-1 , vigour index, germination (%) were better at 85 kg N ha-1 in variety of BARI Barley 5 than BARI Barley 4. So it can be concluded that BARI Barley 5 showed better result when fertilized with 100 kg N ha-1 and harvested at 40 DAA for getting maximum yield and 85 kg N ha-1 and harvested at 40 DAA for getting better quality seed.


Crop Science ◽  
1976 ◽  
Vol 16 (3) ◽  
pp. 407-409 ◽  
Author(s):  
John H. Turner ◽  
H. H. Ramey ◽  
Smith Worley
Keyword(s):  

2016 ◽  
Vol 3 (3) ◽  
Author(s):  
RABINDRA KUMAR

A series of seed-processing machines were used to evaluate seed quality improvement in paddy during the Kharif season 2013-14. The processing machines proved an efficient tool in producing quality seeds. The consistent and higher seed quality (germination 91.67% and physical purity 99.83%) could be achieved by efficient use of processing machines. The product and separate (reject) from individual machines were analysed to evaluate machine efficiency in separating the seed components as well as impurities from the harvested lot. The air-screen machines were found effective in removing dead seeds, whereas specific gravity separator removed abnormal seeds significantly. Gradual increase in seed quality was recorded with decrease in recovery in the processing line. Seed loss in reject port was always associated with handling of seed lots by each machine and observed only 1.30%. Specific gravity separator was found essential for the seed lot of medium-term storage or for the buffer stocking.


2020 ◽  
Vol 16 (2) ◽  
pp. 60
Author(s):  
Nwozo Sarah Onyenibe ◽  
Julius Oluwaseun Oluwafunmilola ◽  
Stanley Udogadi Nwawuba

The extracted seeds of African breadfruit are identified to be extremely healthy whenever it is correctly processed. Therefore, the aim of the present study was to evaluate the effects of processing methods on the nutritional quality of African breadfruit seed. A qualitative phytochemical analysis including: Alkaloid, Flavonoid, Saponin, Tannin, Anthraquinone, Terpenoids, Steroid, and Cardiac Glycosides for the different fraction of African breadfruit seed was performed using a standard method. The result revealed the presence and greater amount of phytochemical for the raw fraction; seven in eight, six in eight for steamed fraction, and four in eight for boiled and roasted respectively. Anti-nutrient, Proximate, and Mineral Content were also conducted using standard methods. The amino acid composition was determined using High-Performance Liquid Chromatography (HPLC). The results of the present study revealed that anti-nutrients including Phytate, Tannins, and Oxalate were significantly p<0.05 reduced in the boiled fraction 5.47±0.15, 3.42±0.02 and 6.89±0.05, and highest in the raw fraction 7.77±0.01, 5.09±0.03 and 9.34±0.14. The proximate composition including; percentage crude fat, Ash, Carbohydrate, Fatty acid, and Energy value were significantly lower p<0.05 in the boiled fraction relative to the other fractions. Mineral contents; calcium, magnesium, sodium, potassium, and phosphorus were also significantly p<0.05 elevated in the boiled fraction relative to the raw, steamed, and roasted fraction. The amino acid composition was highest in the roasted and boiled fraction 57.350 and 56.978, and lowest in the steamed and raw fraction 35.754 and 28.748 respectively. Therefore, boiling (cooking) is encouraged for the preparation of African breadfruit seed.


Agronomy ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 377
Author(s):  
Katrin Kuhlmann ◽  
Bhramar Dey

Seed rules and regulations determine who can produce and sell seeds, which varieties will be available in the market, the quality of seed for sale, and where seed can be bought and sold. The legal and regulatory environment for seed impacts all stakeholders, including those in the informal sector, through shaping who can participate in the market and the quality and diversity of seed available. This paper addresses a gap in the current literature regarding the role of law and regulation in linking the informal and formal seed sectors and creating more inclusive and better governed seed systems. Drawing upon insights from the literature, global case studies, key expert consultations, and a methodology on the design and implementation of law and regulation, we present a framework that evaluates how regulatory flexibility can be built into seed systems to address farmers’ needs and engage stakeholders of all sizes. Our study focuses on two key dimensions: extending market frontiers and liberalizing seed quality control mechanisms. We find that flexible regulatory approaches and practices play a central role in building bridges between formal and informal seed systems, guaranteeing quality seed in the market, and encouraging market entry for high-quality traditional and farmer-preferred varieties.


2021 ◽  
Vol 807 (4) ◽  
pp. 042010
Author(s):  
M M Adie ◽  
A Krisnawati ◽  
Y Baliadi ◽  
E Yusnawan ◽  
A Wijanarko
Keyword(s):  

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