scholarly journals Quality of Harvested Seed Associated with Soybean Cultivars and Herbicides Under Weed-Free Conditions

Plant Disease ◽  
2002 ◽  
Vol 86 (9) ◽  
pp. 1036-1042 ◽  
Author(s):  
C. A. Bradley ◽  
G. L. Hartman ◽  
L. M. Wax ◽  
W. L. Pedersen
Keyword(s):  
Seed Quality ◽  
Soybean Seed ◽  
Quality Parameters ◽  
Soybean Cultivars ◽  
Percent Germination ◽  
Soybean Plants ◽  
Preemergence Herbicides ◽  
Postemergence Herbicides ◽  
Field Plots

Different herbicides were applied to soybean plants in field plots planted to different soybean cultivars located at four locations in Illinois between 1997 and 2000. Treatments varied from hand weeded to preemergence herbicides to postemergence herbicides. Soybean seeds were harvested and evaluated for different seed quality parameters. The percentage of seeds infected with Phomopsis spp. ranged from 1 to 40%, and the percentage of seeds infected with Cercospora kikuchii was low, ranging from 0 to 4%. Herbicides had little or no effect on seed quality parameters such as percent germination and incidence of seed pathogens or on protein and oil concentrations. Soybean seed quality was affected by Phomopsis spp. in that there were significant (P ≤ 0.05) inverse correlations between Phomopsis spp. incidence and percentage seed germination. It appears that Phomopsis spp. may be a more prevalent seed pathogen than C. kikuchii for soybean fields in central to northern Illinois.

scholarly journals Sowing periods, agronomic performance and seed quality of soybean cultivars in the Planosol soil

2019 ◽  
Vol 13 ((03) 2019) ◽  
pp. 348-353
Author(s):  
Geison Rodrigo Aisenberg ◽  
Felipe Koch ◽  
Gustavo Zimmer ◽  
Gustavo Henrique Demari ◽  
Vinícius Jardel Szareski ◽  
...  
Keyword(s):  
Seed Weight ◽  
Seed Quality ◽  
Climatic Conditions ◽  
Stem Diameter ◽  
Soybean Seeds ◽  
Morphological Attributes ◽  
Soybean Cultivars ◽  
Physiological Quality ◽  
Soybean Plants

Understanding of sowing in an ideal season for each region and cultivar is essential for the crop to reach each of its stages in more favorable climatic conditions. The objective of this study was to evaluate the influence of different sowing times on agronomic attributes of two soybean cultivars and the physiological quality of soybean seeds in soil type Eutrophic Haplic Planosol. The experimental design was completely randomized, in a factorial scheme 4 x 2, with four sowing times and two soybean cultivars, with eight replications. The sowing was executed at the beginning and end of November (1st and 2nd epochs) and beginning and end of January (3rd and 4th epochs), using the cultivars: Fundacep 64 RR and BMX Potência RR. The experiment was carried out in polyethylene vessels with volumetric capacity of 10 liters. The morphological attributes of the plants were evaluated, such as: height, stem diameter, number of pods and seeds per plant, 1000 seed weight, as well as seed germination and vigor. Seeding after January 1st negatively affected the agronomic behavior of soybean plants, with reduction of plant height, stem diameter, number of pods and seeds per plant. The sowing on November 1st favored the obtaining of seeds with lower physical quality in terms of 1000 seed weight; however, seeds with superior physiological performance. Late sowing showed an alternative for the production of soybean seeds in the South region of Rio Grande do Sul, mainly due to the higher quality of the seeds produced in this period.

Yield and Seed quality of barley (Hordeum vulgare L.) as affected by variety, nitrogen level and harvesting time

2014 ◽  
Vol 2 (2) ◽  
pp. 93-100
Author(s):  
Shahnaj Yesmina ◽  
Moushumi Akhtarb ◽  
Belal Hossain
Keyword(s):  
Grain Yield ◽  
Seed Weight ◽  
Seed Quality ◽  
Quality Parameters ◽  
Nitrogen Level ◽  
Yield Attributes ◽  
Harvesting Time ◽  
Nitrogen Levels ◽  
Vigour Index

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.

scholarly journals Genetic diversity in soybean seed quality under different storage conditions

2017 ◽  
Vol 38 (1) ◽  
pp. 57
Author(s):  
Daniele Piano Rosa ◽  
Danúbia Aparecida Costa Nobre ◽  
Diego Santos Oliveira ◽  
Francisco Charles dos Santos Silva ◽  
André Ricardo Gomes Bezerra ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Seed Quality ◽  
Soybean Seed ◽  
High Standard ◽  
Storage Conditions ◽  
Seed Vigor ◽  
Soybean Cultivars ◽  
High Germination ◽  
Physiological Quality ◽  
Almost All

This study aimed to assess the effect of genetic diversity on physiological quality of soybean seeds stored in cold chamber and under environmental conditions. Ten cultivars were assessed in a randomized factorial design (2x10). Factor 1 corresponded to two storage conditions and factor 2 to ten soybean cultivars, with four replications. The evaluated variables were total germination (G%), first count of germination (F%), percentage of abnormal seedlings (AS%), germination speed index (GSI), water content (WC), electrical conductivity (EC), dry matter of seedlings (DMS) and length of seedlings (LS). Data underwent ANOVA, followed by Scott Knott test, as well as multivariate analysis of genetic diversity. The results showed a higher physiological quality for seeds under cold storage. Half of the cultivars (FPS Júpiter, FPS Urano, FPS Antares, FPS Netuno and CD 250) presented high germination rates and seed vigor, being thus indicated as high-standard materials for further breeding programs. Besides that, storage environment had influence on the clustering of soybean cultivars. Moreover, cultivars had genetic dissimilarity for almost all assessed traits as G%, GSI, F%, AS%, EC, DMS and LS.

scholarly journals Improving Seed Quality of Soybean Suitable for Growing in Europe

2020 ◽  
Author(s):  
Aleksandra Sudarić ◽  
Maja Matoša Kočar ◽  
Tomislav Duvnjak ◽  
Zvonimir Zdunić ◽  
Antonela Markulj Kulundžić
Keyword(s):  
Acid Composition ◽  
Seed Quality ◽  
Soluble Sugars ◽  
Soybean Seed ◽  
Trade Deficit ◽  
Added Value ◽  
Future Production ◽  
Almost All ◽  
Insight Into

The potential of soybean for food, feed, and pharmaceutical industry arises from the composition of its seed. Since European countries import 95% of the annual demand for soybean grains, meal, and oil, causing an enormous trade deficit, the governments in Europe had started to introduce additional incentives to stimulate soybean cropping. To rebalance the sources of soybean supply in the future, production must be followed by continuous research to create varieties that would make European soybean more appealing to the processing industry and profitable enough to satisfy European farmers. This chapter is giving an overview of the European soybean seed quality research and an insight into soybean seed quality progress made at the Agricultural Institute Osijek, Croatia. The studies presented are mainly considering maturity groups suitable for growing in almost all European regions. The most important traits of soybean seed quality discussed are protein content and amino acid composition, oil content and fatty acid composition, soluble sugars, and isoflavones. Defining quality traits facilitates the parental selection in breeding programs aiming to improve the added value properties of final soybean products and enables the exchange of materials between different breeding and research institutions to introduce diversity, which is a prerequisite for genetic advance.

scholarly journals Induction of Systematic Resistance in Soybean Plants against Fusarium Wilt Disease by Seed Treatment with Benzothiadiazole and Humic Acid

2011 ◽  
Vol 3 (2) ◽  
pp. 80-89 ◽  
Author(s):  
Montaser Fawzy ABDEL-MONAIM ◽  
Mamdoh Ewis ISMAIL ◽  
Kadry Mohamed MORSY
Keyword(s):  
Humic Acid ◽  
Growth Parameters ◽  
Soybean Seed ◽  
Total Phenol ◽  
Oxidative Enzymes ◽  
Systemic Resistance ◽  
Damping Off ◽  
Seed Soaking ◽  
Soybean Cultivars ◽  
Soybean Plants

The ability of benzothiadiazole (BTH), humic acid (HA) and their combination when used as seed soaking to induce systemic resistance against a pathogenic strain of Fusarium oxysporum was examined in four soybean cultivars under greenhouse conditions. Both inducers and their combination were able to protect soybean plants against damping-off and wilt diseases compared with check treatment. These results were confirmed under field conditions in two different locations i. e Minia and New Valley governorates. The tested treatments significantly reduced damping-off and wilt diseases and increased growth parameters, except number of branches plant-1, and seed yield. Application of BTH (0.25) + HA (4 g/l) was the most potent in this respect treatment. Soybean seed soaking in BTH+ HA recorded the highest activities of the testes of oxidative enzymes followed by BTH in the four soybean cultivars. Whereas, HA treatment was recorded the lowest increased of these oxidative enzymes. Also, similar results were obtained in case of total phenol but HA increased the total phenol more than BTH in all tested cultivars.

Effect of foliar application of growth activator, promoterand antioxidant on seed quality of soybean

2016 ◽  
Author(s):  
P . Kuchlan ◽  
M. K. Kuchlan ◽  
S. M. Husain
Keyword(s):  
Salicylic Acid ◽  
Seed Yield ◽  
Seed Quality ◽  
Foliar Application ◽  
Foliar Spray ◽  
Soybean Seed ◽  
Seed Vigour ◽  
Filling Stage ◽  
Seed Health

Loss of seed quality in soybean is a serious problem in tropical and subtropical region. Foliar application of salicylic acid (SA), GA3 and acetyl salicylic acid (50 ppm) at seedling and pod filling stage, K2HPO4 (2%), a-tocopherol (100 ppm) at flowering and pod filling stage was done on soybean varieties – NRC 7 and JS 335. Foliar application of SA showed positive effect on seed yield, seed health, germination and seed vigour during storage. Plant height was significantly improved by the GA3 spray in both the varieties. Significantly higher seed yield was obtained with foliar spray of a-tocopherol. Application of SA was found effective to protect plants from various diseases to get quality seed. a-Tocopherol and K2HPO4 treatment significantly reduced MDA production in seeds. a-Tocopherol application increased super oxide dismutase activity as a result the lipid peroxidation of seed during storage was significantly reduced. Application of a-tocopherol, K2HPO4 and salicylic acid improved the storage or keeping quality of soybean seed.

scholarly journals Electrical conductivity test in the evaluation of the physiological potential of treated and stored soybean seeds

2021 ◽  
Vol 42 (6) ◽  
pp. 3135-3148
Author(s):  
Ana Paula Silva Couto ◽  
◽  
Cristian Rafael Brzezinski ◽  
Julia Abati ◽  
Ronan Carlos Colombo ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Seed Treatment ◽  
Seed Quality ◽  
Soybean Seed ◽  
Accelerated Aging ◽  
Control Treatment ◽  
Soybean Seeds ◽  
Seed Treatments ◽  
Chemical Treatments ◽  
Soybean Cultivars

Soybean seed treatment contributes to the maintenance of seed quality, but the effect of commercial formulations and chemical products on the effectiveness of the electrical conductivity test based on electrolyte leaching has been frequently questioned. This study aimed to verify the interference of the chemical seed treatment of two soybean cultivars on the effectiveness of the electrical conductivity test in evaluating the vigor of freshly treated and stored seeds. The experimental design was completely randomized, consisting of seven seed treatments and two evaluation periods (0 and 60 days after storage), with four replications. The used seed treatments consisted of 1) fipronil + pyraclostrobin + thiophanate-methyl, 2) imidacloprid + thiodicarb + carbendazim + thiram, 3) abamectin + thiamethoxan + fludioxonil + mefenoxam + thiabendazole, 4) carbendazim + thiram, 5) fludioxonil + mefenoxam + thiabendazole, 6) carboxin + thiram, and 7) control (no treatment). The cultivars were BRS 360 RR and BRS 284, which were analyzed separately. Germination, accelerated aging, emergence, and electrical conductivity tests were carried out. No differences were detected between the control and chemical treatments performed on seeds of the two freshly treated soybean cultivars regarding germination, accelerated aging, and emergence tests. The germination test stood out after storage with the cultivar BRS 360 RR, showing the maintenance of germination potential for seeds treated with carbendazim + thiram and the control treatment. Therefore, the chemical treatment of soybean seeds interferes with the result of the electrical conductivity test. The electrical conductivity test is effective in segregating seed lots in terms of vigor level. The electrical conductivity test correlates with the other vigor tests used to identify the reduction in the physiological seed quality with storage.

scholarly journals Effect of head decapitation and planting density on quality seed production of sprouting broccoli (Brassica oleracea var. italica L.)

2015 ◽  
Vol 7 (1) ◽  
pp. 471-476 ◽  
Author(s):  
D.K. Mehta ◽  
Tarun Singh ◽  
Rajesh Kanwar
Keyword(s):  
Brassica Oleracea ◽  
Seed Production ◽  
Seed Yield ◽  
Seed Quality ◽  
Quality Parameters ◽  
Planting Density ◽  
Plant Spacing ◽  
Yield And Quality ◽  
Number Of Branches

A study was carried out to evaluate the effect of head decapitation and planting density on plant growth, seed yield and quality of sprouting broccoli, Brassica oleracea var. italica L. using cultivar ‘Green Head’. The twenty treatments comprised of combinations of four head decapitation methods viz., D1 (decapitation of primary head at appearance and harvesting seeds from secondary heads), D2 (decapitation of primary head at marketable stage and harvesting seeds from secondary heads), D3 (removal of secondary heads at appearance and harvesting seeds primary head) and ‘D4’ (No decapitation- control) and five planting densities viz., S1 (60x60 cm), S2 (60x45 cm), S3(45x45 cm), S4 (60x30 cm), and S5 (45x30 cm). Decapitation of primary head at appearance and harvesting seeds from secondary heads (D1) and planting density S3 (45x45 cm) independently as well as in combination gave highest seed yield per plot and per hectare. This combination was also found comparable to other combinations for other characters like days to 50% flowering, days to seed harvesting, plant height at harvesting (cm), number of branches per plant, number of siliqua per plant, siliqua length (cm), number of seeds per siliqua and seed quality parameters. Therefore, it is suggested that decapitation of primary head at appearance and harvesting seeds from secondary heads (D1) in combination with plant spacing of 45x45 cm i.e. D1S3 can be recommended for commercial seed production of sprouting broccoli.

scholarly journals Growing season climate affects phenological development, seed yield and seed quality of dill (Anethum graveolens)

2022 ◽  
Author(s):  
Ozlem Alan ◽  
Damla Kanturer ◽  
Alison A. Powell ◽  
Hulya Ilbi
Keyword(s):  
Seed Production ◽  
Seed Yield ◽  
Seed Quality ◽  
Quality Parameters ◽  
Production Environment ◽  
Anethum Graveolens ◽  
Yield And Quality ◽  
Flowering Initiation ◽  
Mean Germination Time

Dill seed production was investigated over two seasons, comprising a spring growing cycle (SGC) and an autumn growing cycle (AGC). The effects of growing cycle on phenological traits, yield and quality of dill seeds formed on different umbels of the mother plant were investigated. Significant differences were noted in the flowering period, seed yield and quality parameters. The SGC resulted in a shorter time from sowing to bolting and flowering initiation compared with the AGC. Plant height, number of umbels/plant, number of umbelets/umbel, umbel diameter, umbel length and seed weight/plant increased in the AGC. In contrast, decreased germination at 20/30°C and at 13°C, and increased mean germination time at 20/30°C in AGC indicated lower seed quality compared with SGC. Primary umbels produced the best yield and higher quality seeds, followed by the secondary umbels while tertiary umbels gave poor yield and quality seeds in both SGC and AGC. In conclusion, AGC was advisable for higher seed yield, but SGC resulted in higher seed quality compared with the AGC. This highlights the need to select a suitable growing cycle to guarantee high seed yield and quality for each seed production environment.

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