Physiological Potential of Seeds of Perennial Soybean cv. Comum Coated with Different Materials

Xavier, Priscilla Brites; Vieira, Henrique Duarte

doi:10.4236/ajps.2018.91001

Cited by 4 publications

(5 citation statements)

References 25 publications

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“…We found that N. wightii provided the highest values for soil quality index (Jain et al 2018). In our plots, we observed that N. wightii developed a very dense perennial root system during the six years of our experiment, in addition this plant species showed an extraordinary regrowth capacity (Xavier and Vieira et al 2018). These factors make the species more advantageous, re ecting in a high soil quality index.…”

Section: Discussionsupporting

confidence: 49%

Predictive physico-chemical model for soil quality index in a long-term green manure farming system at tropical conditions, North-eastern Brazil

Nascimento¹,

Souza²,

Silva³

et al. 2021

Preprint

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Soil quality index shed light on soil health and its capacity to sustain high primary production. It also can assist decision-making in farming systems by integrating this valuable product into soil management planning. However, the currently existing models are based on rather local data, and thus, there is a lack of predictive tools to monitor soil quality on farming systems at tropical conditions. We characterized soil physico-chemical properties, plant biomass production under a 6-year experiment in a sandy soil from Tropical ecosystem, using ten treatments: Brachiaria decumbens, Canavalia ensiformis, Crotalaria juncea, Crotalaria ochroleuca, Crotalaria spectabilis, Lablab purpureus, Mucuna pruriens, Neonotonia wightii, Pennisetum glaucum, and Stilozobium aterrimum. We found that most of the soil physico-chemical properties were correlated with each other by Pearson’s correlation analysis. On the other hand, RDA illustrated that shoot dry biomass was related to soil C stock, K+, macro- and microporosity. Soil pH, Al3+, Ca2+, Mg2+, K+, Olsen’s P, Na+, soil C stock, bulk density, microporosity, macroporosity, and permanent wilting point were the main factors driving primary production in our long-term study. Our findings suggest that: 1) a consecutive green manure practice without any input of fertilizers after 6 years changed positively by increasing soil fertility (e.g., Ca2+, Mg2+, K+ and Olsen’s P), and improving plant growth and soil quality in tropical savanna climate conditions; and 2) the 33 multivariate predictive models may provide a deeper view about the benefits of using plant species as green manure by creating positive plant-soil feedback thus promoting soil quality.

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Section: Discussionsupporting

confidence: 49%

Predictive physico-chemical model for soil quality index in a long-term green manure farming system at tropical conditions, North-eastern Brazil

Nascimento¹,

Souza²,

Silva³

et al. 2021

Preprint

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“…GroundEye ® was efficient in determining the maximum and minimum diameters of coated Stylosanthes sp. and perennial-soybean seeds in the studies of Acha et al (2016), Silva et al (2017), Acha et al (2018) and Xavier and Vieira (2018). These authors obtained significant increases for those variables with the different coating methodologies Table 3.…”

Section: Resultsmentioning

confidence: 85%

“…uneven coating, contamination by other species and coating that reduces seed germination. Divergences may exist between studies on seed coating due to the material used and thickness of the layer deposited on the seeds (Somrat et al, 2018;Xavier and Vieira, 2018).…”

Section: Introductionmentioning

confidence: 99%

Digital image processing of coated perennial-soybean seeds and correlation with physiological atributes

Justino

Vieira

2020

J. Seed Sci.

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Perennial soybean (Neonotonia wightii) is a Fabaceae with potential to be used in consortium with Poaceae plants to improve pasture quality. In order to add value to perennial soybean seeds and improve their seed distribution, seeds coated with different materials in coating machine were characterized by digital image analysis and physical attributes related to physiological attributes in order to define the ideal amount and material to be used in the coating. Different material quantities were tested, 150 g, 200 g and 250 g, divided into layers, namely: sand, calcium silicate + sand and limestone + sand. Coating promoted maximum increments of approximately 350% in seed mass and significant increases of up to 230% in area, 154% in maximum diameter, 162% in minimum diameter, 167% in contained diameter and 152% in perimeter. The coating was also efficient in reducing the moisture of the pellets by increasing the layers that cover the seeds. The sand + limestone combination resulted in the largest pellets. The combination of sand + silicate did not interfere with plant speed and formation. Thus, it was considered the appropriate material for the coating of perennial soybean seeds.

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“…Oliveira et al (2003) working with sand and limestone found a decrease in germination percentages of sweet pepper seeds. This delay in germination is a recurring problem in several studies (Silva & Nakagawa, 1998;Tunes et al, 2012;Caldeira et al 2016;Acha et al, 2016;Sousa et al, 2016;Silva et al., 2017;Xavier & Vieira, 2018;Acha et al, 2018). However, in spite of this delay, studies indicate that the process of coating seeds is a great alternative for maintaining their physiological characteristics (Medeiros et al 2004;Brites et al, 2011;Sousa et al, 2017).…”

Section: Resultsmentioning

confidence: 99%

Quality of Stylosanthes Campo Grande seeds coated with different materials

Silva

Vieira

2021

Rev. Ceres

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The seed coating technique adds value to the seeds. This technique allows changing the seed size and shape, facilitating sowing, and also the application of essential nutrients to the good development of the plant in the postgermination phases. Therefore, the objective of this work was to evaluate the physical and physiological characteristics of Stylosanthes capitata/macrocephala coated with different materials. For the coating procedure, a N10 Newpack bench seed coating machine was used. The experimental design was completely randomized, with four replications and 50 seeds per plot distributed in 10 treatments. The different materials and their respective mixtures significantly altered the physical characteristics, the weight of a thousand seeds (WTS), water content (SWC), maximum diameter (DMA), and minimum diameter (DMI) of the seeds. Among the different materials, the sand coated seeds had the highest germination percentage (%G), germination velocity index (GSI), and first germination count (FGC). The maintenance of physiological attributes was observed in sand coated seeds (0.25 mm). Therefore, it is an alternative application of nutrients via seeds, due to the inert character of the sand. The mixing of the materials used in this work is not recommended.

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Physiological Potential of Seeds of Perennial Soybean cv. Comum Coated with Different Materials

Cited by 4 publications

References 25 publications

Predictive physico-chemical model for soil quality index in a long-term green manure farming system at tropical conditions, North-eastern Brazil

Predictive physico-chemical model for soil quality index in a long-term green manure farming system at tropical conditions, North-eastern Brazil

Digital image processing of coated perennial-soybean seeds and correlation with physiological atributes

Quality of Stylosanthes Campo Grande seeds coated with different materials

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