A bioplastic-based seed coating improves seedling growth and reduces production of coated seed dust

2018 ◽  
Vol 32 (3) ◽  
pp. 318-330 ◽  
Author(s):  
Cesare Accinelli ◽  
Hamed K. Abbas ◽  
W. Thomas Shier
Keyword(s):  
Seedling Growth ◽  
Seed Coating ◽  
Coated Seed

scholarly journals Effect of Seed Coating and PEG-Induced Drought on the Germination Capacity of Five Clover Crops

Plants ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 724
Author(s):  
Antonín Kintl ◽  
Igor Huňady ◽  
Tomáš Vymyslický ◽  
Vladěna Ondrisková ◽  
Tereza Hammerschmiedt ◽  
...  
Keyword(s):  
Drought Resistance ◽  
Seed Coating ◽  
Germination Capacity ◽  
Onobrychis Viciifolia ◽  
Medicago Lupulina ◽  
Anthyllis Vulneraria ◽  
Melilotus Albus ◽  
Trifolium Repens L ◽  
Peg 8000 ◽  
Coated Seed

The effect of coating the seed of clover crops by water absorbing seed process (WASP) technology pelletization on its germination capacity was studied in conditions of diverse drought intensities simulated by different concentrations of polyethylenglycol (PEG) 8000 solution. Drought resistance was monitored in the seed of five fodder clover species: Anthyllis vulneraria L., Medicago lupulina L., Trifolium repens L., Melilotus albus Medik. and Onobrychis viciifolia Scop. In the seed of given plant species, germination capacity was determined along with the share of dead and hard seeds. Although the coating significantly (p < 0.05) affected the drought resistance of seeds, the germination capacity increased only in conditions of milder drought (simulation with PEG: 0.1–0.3 mol). With the increasing intensity of drought induced by higher PEG concentrations (0.4–0.7 mol) the number of germinable seeds demonstrably decreased and the number of dead seeds increased in the coated seed as compared with the uncoated seed. The coated seed can be appropriate for use in M. lupulina, M. albus and T. repens, while the uncoated seed can be used in A. vulneraria and O. viciifolia.

scholarly journals Seed coating with plant nutrients enhances germination and seedling growth, and promotes total dehydrogenase activity during seed germination in tomato (Lycopersicon esculentum)

2021 ◽  
Author(s):  
Kittiwan Klarod ◽  
Anoma Dongsansuk ◽  
Hans-Peter Piepho ◽  
Boonmee Siri
Keyword(s):  
Seed Germination ◽  
Dehydrogenase Activity ◽  
Seedling Growth ◽  
Nutrient Content ◽  
Physiological Effect ◽  
Accelerated Ageing ◽  
Seed Coating ◽  
Tomato Seed ◽  
Medium Quality ◽  
Physiological Quality

A lack of nutrients in the seed can be supplemented by seed coating and has the potential to improve germination and seedling growth. In this research, we studied the physiological effect of coating tomato seeds with plant nutrient formulations (PNF) on the dehydrogenase activity during germination and nutrient content of the seedlings. Two tomato seed lots were used, differing in physiological quality: the low quality seed lot had 76% germination and the medium quality seed lot had 87% germination. Seeds were coated with a complete PNF containing N, P, K, Ca, Mg, Fe, B, Mn, Cu and Zn. The PNF was applied at three concentrations, i.e., 1-fold (PF1), 4-fold (PF4) and 16-fold (PF16), and applied with 3% PVP-K90 &plus; 1% PEG 6000 as a polymer. Coating seeds with PNF improved seed germination for both low- and medium-quality seeds. Accelerated ageing tests revealed that PF1 increased germination by 12 and 27% in low- and medium-quality seeds, respectively. All concentrations of PNF increased TDH activity after 48 hours of seed imbibition. Moreover, PF16 decreased root length but increased shoot length. All PNF treatments resulted in higher nutrient content in the seedlings.

scholarly journals Biostimulant Seed Coating Treatments to Improve Cover Crop Germination and Seedling Growth

Agronomy ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 154 ◽  
Author(s):  
Qiu ◽  
Amirkhani ◽  
Mayton ◽  
Chen ◽  
Taylor
Keyword(s):  
Seedling Growth ◽  
Perennial Ryegrass ◽  
Cover Crops ◽  
Land Reclamation ◽  
Germination Rate ◽  
Red Clover ◽  
Dry Weight ◽  
Soy Flour ◽  
Seed Coating ◽  
Growth Metrics

Biostimulant seed coating formulations were investigated in laboratory experiments for their potential to increase maximum germination, germination rate, germination uniformity, and seedling growth of red clover (Trifolium pratense L.) and perennial ryegrass (Lolium perenne L.) seeds. Red clover and perennial ryegrass seeds were coated with different combinations of soy flour, diatomaceous earth, micronized vermicompost, and concentrated vermicompost extract. Coated and non-coated seeds of red clover and perennial ryegrass were evaluated for germination and growth after 7 and 10 days, respectively. Red clover seed was maintained at a constant 20 °C with a 16/8 h photoperiod, whereas for perennial ryegrass seed, the germinator was maintained at 15/25 °C, with the same photoperiod as red clover. Coated treatments significantly improved germination rate and uniformity with no reduction in total germination, compared to the non-treated controls in red clover. In contrast, for perennial ryegrass, the total germination percentage of all coated seeds was reduced and displayed a delayed germination rate, compared with the non-treated controls. Shoot length, seedling vigor index, and dry weight of seedlings of coated seed treatments of both crops were significantly higher when compared to controls for both species. In addition to growth metrics, specific surface mechanical properties related to seed coating quality of seeds of both species were evaluated. Increasing the proportion of soy flour as a seed treatment binder in the coating blend increased the integrity and compressive strength of coated seeds, and the time for coatings to disintegrate. These data show that seed coating technologies incorporating nutritional materials and biostimulants can enhance seedling growth and have the potential to facilitate the establishment of cover crops in agriculture and land reclamation.

scholarly journals Seed coating with biological agents to improve the quality of rice seeds contaminated with blast pathogens and increase seedling growth

2020 ◽  
Vol 21 (2) ◽  
Author(s):  
TANTRI PALUPI ◽  
FADJAR RIYANTO
Keyword(s):  
Seedling Growth ◽  
Positive Control ◽  
Negative Control ◽  
Biological Agents ◽  
Blast Disease ◽  
Good Growth ◽  
Seed Coating ◽  
Physiological Quality ◽  
Rice Seeds

Abstract. Palupi T, Riyanto F. 2020. Seed coating with biological agents to improve the quality of rice seeds contaminated with blast pathogens and increase seedling growth. Biodiversitas 21: 683-688. The aim of this research were (1) to evaluate the compatibility of five biological agents (SP21, SP31, RP21, TP12, and TP11), (2) to evaluate the physical and physiological quality of rice seeds contaminated with Pyricularia grisea after being treated with seed coating enriched with biological agents, (3) to evaluate the effectiveness of seed coating on the incidence of blast disease and seedling growth. The first experiment tested the compatibility of five bacterial antagonists on the PSA plates. There were eight treatments in the second experiment namely seed coating enriched with SP21+SP31; SP21+RP21; SP21+TP12; SP31+RP21; RP21+TP11; fungicides; positive control (rice seeds contaminated with blast), and negative control (healthy seeds), and seven treatments in the third experiment which were the same as in experiment 2 without negative control. Parameters observed in the second experiment were: seed germination, vigor index, and growth rate, while parameters observed in the 3rd experiment were the incidence rate of blast disease and plant height. The results of experiment 1 showed that isolates SP21+SP3, SP21+RP21, SP21+TP12, SP31+RP21, and RP21+TP11 had good growth compatibility without antagonism, and they can be used as biocontrol agents. Results of experiment 2 showed that seed coating enriched with SP21+SP31 isolates has the potential to improve the physical and physiological quality of the seeds. Results of experiment 3 showed that seed coating enriched with RP21+TP11 had no incidence of blast disease up to 4 weeks after planting.

New developments in seed pelleting and seed coating, with special reference to rangeland improvement

1975 ◽  
Vol 8 (5) ◽  
pp. 281-283 ◽  
Author(s):  
I J Johnson
Keyword(s):  
Special Reference ◽  
Scientific Information ◽  
Seed Coating ◽  
Trade Secrets ◽  
New Developments ◽  
Ballistic Properties ◽  
Coated Seed

The merits of the more precise planting of seed which is made possible by pelleting and coating are well recognized, but there is relatively little published scientific information on which to assess the value of pelleted and coated seed, under practical farming conditions, in respect of its improved ballistic properties for sowing from the air for rangeland improvement, for example. Details of the processes and materials employed tend to be regarded as “trade secrets”.

scholarly journals Seed Coating with Organomineral Fertilizer, an Alternative Method to Improve the Efficiency of Farming

2020 ◽  
pp. 12-17
Author(s):  
Joko Priyono ◽  
Anak Agung Ketut Sudharmawan
Keyword(s):  
Direct Contact ◽  
Growth And Yield ◽  
Seed Coating ◽  
High Concentration ◽  
Alternative Method ◽  
Randomized Design ◽  
Coating Method ◽  
Glasshouse Experiment ◽  
Farming Efficiency ◽  
Coated Seed

Seed and fertilizer are two important farming inputs, which are commonly available and used separately. Combining both materials into a unit of fertilizer-coated seed may improve farming efficiency. However, the appropriate seed coating method must be found out, and this research was the first effort of finding the method. A glasshouse experiment was carried out to identify the growth and yield of the coated seeds of rice and groundnut with organomineral fertilizer in three different sizes, i.e., small (SS), medium (MS), and big sizes (BS). Four sets of experiments were prepared, two of those were for testing two varieties of rice and the others were for testing two varieties of groundnut. Each experiment was laid out in a complete randomized design; the treatment was the size of coated seeds (SS, MS, BS, and a control - uncoated seeds) in triplicates. Results reveal that the seed coating delayed the germination of rice seeds for 2 – 3 days and groundnut seeds for 7 – 16 days, suppressed the growth and yield of rice but improved the growth and yield of groundnut. The highest yield of groundnut was the grown groundnut from the small and medium sizes of coated seeds (weight ratios of 1:4 and 1:9). The reduces of growth and yield of rice were most probably due to the direct contact of the high concentration of nutrients, especially nitrogen, with the seeds. In conclusion, the seed coating with organomineral fertilizer was a potentially developed method to improve farming efficiency. Further efforts were needed to fix the composition of organomineral fertilizer, especially the type N substances used and the steps of applying the materials onto the seeds.

scholarly journals THE INFLUENCE OF SEED COATING ON THE VIGOR AND EARLY SEEDLING GROWTH OF BARLEY

2014 ◽  
Vol 41 (1) ◽  
pp. 25-26 ◽  
Author(s):  
Francisco M.F Corlett ◽  
Cassyo de A Rufino ◽  
Jucilayne F Vieira ◽  
Lizandro C Tavares ◽  
Lilian V.M Tunes ◽  
...  
Keyword(s):  
Seedling Growth ◽  
Seed Coating ◽  
Early Seedling Growth ◽  
Early Seedling

scholarly journals Effect of sowing method, soil moisture and temperature on establishment from coated grass seed

1992 ◽  
pp. 131-133
Author(s):  
D. Scott ◽  
W.J. Archie ◽  
R.J.M. Hay
Keyword(s):  
Soil Moisture ◽  
Soil Temperature ◽  
Dactylis Glomerata ◽  
Field Trials ◽  
Seed Coating ◽  
Minimal Effect ◽  
Grass Seed ◽  
Environmental Interactions ◽  
Coated Seed

Two field trials showed up to 60% greater establishment from surface-sown coated ryegrass seed compared with bare seed. Coating had a minimal effect on drilled seed. Multiple sowings over two seasons showed that the increase in establishment from coated seed relative to bare seed was only weakly related to temperature and soil moisture. The trend was for greater establishment from coated seed at lower mean establishment rates and higher soil temperature. Keywords Dactylis glomerata, grass seed coating, environmental interactions, L&urn perenne

scholarly journals Seed Coating and Seeding Rate Effects on Turfgrass Germination and Establishment

2010 ◽  
Vol 20 (1) ◽  
pp. 179-185 ◽  
Author(s):  
Bernd Leinauer ◽  
Matteo Serena ◽  
Devesh Singh
Keyword(s):  
Festuca Arundinacea ◽  
Cynodon Dactylon ◽  
Poa Pratensis ◽  
Creeping Bentgrass ◽  
Kentucky Bluegrass ◽  
Seed Coating ◽  
Seeding Rate ◽  
Cool Season ◽  
New Mexico State University ◽  
Coated Seed

A field experiment was conducted at New Mexico State University to investigate the effect of seeding rates and ZEBA polymer [starch-g-poly (2-propenamide-co-propenoic acid) potassium salt] seed coating on the germination and establishment of warm- and cool-season grasses, and cool-season blends and mixtures. Grasses were established at recommended and reduced (50% of recommended) seeding rates with coated and uncoated seeds under two irrigation regimes (98% and 56% reference evapotranspiration). With the exception of ‘Bengal’ creeping bentgrass (Agrostis stolonifera), the polymer coating did not improve germination of the turfgrasses tested 22 days after seeding (DAS). However, at the end of the establishment period (92 DAS), plots established with ‘Bengal’, Dunes Mix [mixture of ‘Hardtop’ hard fescue (Festuca longifolia), ‘Baron’ kentucky bluegrass (Poa pratensis), ‘Barok’ sheep fescue (Festuca ovina)], ‘Panama’ bermudagrass (Cynodon dactylon), and Turf Sense™ [mixture of ‘Baronie’ kentucky bluegrass, ‘Barlennium’ perennial ryegrass (Lolium perenne), and ‘Barcampsia’ tufted hairgrass (Deschampsia cespitosa)] achieved greater coverage (based on visual estimations) when coated seed was used compared with uncoated seed. Establishment was greater for ‘Bengal’, Dunes Mix, ‘Panama’, Turf Sense™, and Turf Saver™ [blend of ‘Barlexas II’, ‘Barrington’, and ‘Labarinth’ tall fescue (Festuca arundinacea)] when normal seeding rates were applied compared with reduced seeding rates. ‘Barleria’ crested hairgrass (Koeleria macrantha) plots did not establish, regardless of the treatments applied. Results showed that seed coating has the potential to improve establishment at recommended and reduced seeding rates and can compensate for less favorable conditions such as reduced irrigation, reduced seeding rate, or for a combination of both. At the end of the establishment period, not all grasses achieved coverage greater than 50%. Further research over a longer establishment period is needed to determine if coated seed can be beneficial in achieving full coverage.

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