Harvesting delay in physiological quality of soy seeds

Soybeans are a grain-producing species of high international demand and occupy a prominent position in the Brazilian economy. The success of this crop in Brazil is due to public and private investments in production technologies and to breeding programs. It is through the seed that the genetic advances reach the producer. In this context, the success of a cultivar and high productivity depend on the quality of the seed. In view of the above, the objectives of the study were to evaluate the physiological quality of soybean cultivar seeds at different harvesting times. The experiment was conducted in an experimental area located at Fazenda Capim Branco, belonging to the Federal University of Uberlândia, in the 2016/2017 harvest. Ten soybean cultivars were evaluated (CD 2737 RR, UFUS 7415, UFUS 7910, UFUS Milionária, UFUS 7801, NA 5909 RG, UFUS 8301, TMG 7062 IPRO, UFUS Xavante and UFUS 6901) at four harvest times (R7, R8, R8+15, R8+30), constituting a 10 x 4 factorial. The experiment was carried out in a randomized complete block design with four replicates. For the evaluation of the physiological quality, germination, electrical conductivity and fresh matter and dry matter of seedlings tests were performed. In all tests the physiological quality of the seeds decreased with the harvest delay. Emphasis was placed on the cultivar NA 5909 RG, which showed the best means to delay the harvest in 15 and 30 days.

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Lignification of the plant and seed quality of RR soybeans sprayed with herbicide glyphosate

Revista CERES ◽

10.1590/s0034-737x2013000200019 ◽

2013 ◽

Vol 60 (2) ◽

pp. 286-292

Author(s):

Cristiane Fortes Gris ◽

Edila Vilela de Resende Von Pinho ◽

Maria Laene de Moreira Carvalho ◽

Rafael Parreira Diniz ◽

Thaís de Andrade

Keyword(s):

Seed Quality ◽

Lignin Content ◽

Block Design ◽

Accelerated Aging ◽

Soybean Seeds ◽

Randomized Block Design ◽

Physiological Quality ◽

Hand Weeding ◽

Herbicide Glyphosate

Differences in levels of lignin in the plant between conventional and transgenic cultivars RR has been reported by several authors, however, there are few studies evaluating the influence of spraying of glyphosate on the lignin in the plant and RR soybean seeds. The aim of this study was to evaluate the physiological quality of RR transgenic soybean seeds and the lignin contents of plants sprayed with the herbicide glyphosate. The assays were conducted both in greenhouse and field in the municipality of Lavras, MG, in the agricultural year 2007/08. The experiment was arranged in a splitplot design with four replicates, considering the treatments hand weeding and herbicide glyphosate as plots, and five RR soybean cultivars (BRS 245 RR, BRS 247 RR, Valiosa RR, Silvânia RR and Baliza RR) as splitplots. In the greenhouse, the cultivars tested were BRS 245 RR and Valiosa RR in a randomized block design with four replicates. The sprayings were carried out at stages V3, V7 and early R5 (3L/ha). The 1000 seed weight, mechanical injury, germination and germination velocity index, emergence velocity index, accelerated aging, electrical conductivity and water soaking seed test, lignin content in the seed coat, in the stem and legumes were determined. The spraying of glyphosate herbicide, in greenhouse and field, did not alter the physiological quality of seeds and the lignin contents in the plant.

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Yield and physiological quality of wheat seeds after desiccation with different herbicides

Journal of Seed Science ◽

10.1590/2317-1545v39n3172506 ◽

2017 ◽

Vol 39 (3) ◽

pp. 254-261 ◽

Cited By ~ 4

Author(s):

Fábio Henrique Krenchinski ◽

Victor José Salomão Cesco ◽

Danilo Morilha Rodrigues ◽

Vinicius Gabriel Caneppele Pereira ◽

Alfredo Junior Paiola Albrecht ◽

...

Keyword(s):

Seed Quality ◽

Block Design ◽

Dry Mass ◽

Wheat Crop ◽

Glufosinate Ammonium ◽

Randomized Block Design ◽

Seedling Length ◽

Physiological Quality ◽

Wheat Seeds

Abstract: Some desiccation techniques for harvesting wheat may affect seed quality. The objective of this study was to evaluate the effect of different desiccant herbicides applied to the wheat crop and their effects on the production and seed quality. The experiment was conducted with cultivar COODETEC 150 (CD 150) in two sites in Palotina (Paraná state, Brazil) with a randomized block design consisting of 7 treatments (desiccation herbicides) and 4 replications. Desiccation was realized when 50% of the plants were in stage 80 with seeds in powdery or mass consistency. The variables analyzed were percentage of moisture content after harvest, Yield, hectoliter weight, mass of 100 seeds, vigor, germination, fresh mass of seedlings, dry mass of seedlings and root length. The herbicides carfentrazone-ethyl and clethodim were the ones that promoted greatest reduction in vigor. The herbicide paraquat caused reduction in seedling length. There was a reduction in the mass of 100 seeds for glufosinate-ammonium, clethodim, diquat and carfentrazone-ethyl. Glufosinate-ammonium, paraquat, glyphosate, clethodim and diquat caused reduction in yield. Desiccation of Cultivar CD 150 at stage 80 is not recommended, since plant Yield and physiological seed parameters were adversely affected by herbicides.

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Efficacy of organomineral fertilizers derived from biosolid or filter cake on early maize development

Australian Journal of Crop Science ◽

10.21475/ajcs.19.13.05.p1132 ◽

2019 ◽

pp. 662-670

Author(s):

Mara Lúcia Martins Magela ◽

Reginaldo de Camargo ◽

Regina Maria Quintão Lana ◽

Melissa Cristina de Carvalho Miranda ◽

Raquel Pinheiro da Mota

Keyword(s):

Organic Matter ◽

Plant Height ◽

Dry Matter ◽

Filter Cake ◽

Block Design ◽

Linear Increase ◽

Mineral Fertilization ◽

Fresh Matter ◽

High Productivity ◽

Stalk Diameter

In the current world scenario of agriculture it is necessary to find technologies to reach high productivity that are effective in providing soil conditioning improvement for the plants. Thus, this study analyzed the efficacy of organomineral fertilizers formulated with different organic matter sources on growth factors of maize. The experiment was done in a greenhouse at Campus Umuarama, Federal University of Uberlândia-MG, in a randomized block design, as a 2 x 5 + 2 factorial, containing two sources of organic matter, biosolid and filter cake, five doses of P2O5 recommendation for the crop and two additional treatments: mineral fertilization (100% of P2O5 of the recommended dose) and a control (no fertilizer), with four replications. Plant height, stalk diameter, and chlorophyll a and b were determined at 35 days after sowing (DAS); plant height, stalk diameter, shoot and root fresh and dry matter were determined at 65 DAS. The organomineral sources with biosolid and filter cake yielded greater height and diameter at 35 DAS than those of mineral fertilization. Regardless of the fertilizer organic matter source, stalk diameter at 35 DAS presented linear increase with increasing doses of the fertilizer sources. The use of fertilizer based on biosolid resulted in greater shoot fresh matter than the filter cake source, regardless of dose applied. In general, greater results were obtained for root fresh and dry matter at the greater fertilizer doses in comparison with the mineral fertilization. Organomineral fertilizers can be a viable alternative for partial or total substitution of mineral fertilization, since similar or better results were found for maize growth characteristics.

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Vigor tests in seeds creole of Phaseolus lunatus L.

Bioscience Journal ◽

10.14393/bj-v35n5a2019-42309 ◽

2019 ◽

Vol 35 (5) ◽

Author(s):

Maria das Graças Rodrigues do Nascimento ◽

Maria Lúcia Maurício da Silva ◽

Edna Ursulino Alves ◽

Caroline Marques Rodrigues ◽

Maria Joelma da Silva

Keyword(s):

Electrical Conductivity ◽

Water Content ◽

Dry Mass ◽

Phaseolus Lunatus ◽

High Productivity ◽

Randomized Design ◽

Seed Analysis ◽

Seedling Length ◽

Physiological Quality

Seeds with a good physiological quality are essential to high productivity. However, for some seeds, Phaseolus lunatus L., the viability and vigor analyze show deficiency in quality. This work aimed to evaluate the physiological quality of Phaseolus lunatus L. seeds using several vigor tests. The study was realized at the Laboratory of Seed Analysis of the Agricultural Sciences Center of the Federal University of Paraíba, in Areia – PB, Brazil. We used seeds from five cultivars of P. lunatus (Branca, Orelha de Vó, Cearense, Rosinha, and Roxinha). To determine the physiological quality, we measured the water content, the viability and vigor test (germination, emergence, electrical conductivity, tetrazolium, first germination count and emergence, seedling length and dry mass). We used a completely randomized design for seeds evaluation, and the field test was performed in randomized blocks. The water content of P. lunatus did not differ among the cultivars, indicating a uniformity in the percentage of moisture. Also, the percentage and speed of emergency and the dry mass of seedlings did not differ among the varieties. The tetrazolium and electrical conductivity tests indicated that Rosinha cultivar had the worst viability concerning the other cultivars, showing a low percentage of living tissue and lower electrical conductivity. The seeds of Roxinha cultivar had the better physiological quality, and the Cearense cultivar had the worst quality evaluation. We recommend the tetrazolium test but not the electrical conductivity test to evaluate the vigor of P. lunatus.

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Growth retardants in wheat and its effect in physiological quality of seeds

Ciência Rural ◽

10.1590/s0103-84782010000600031 ◽

2010 ◽

Vol 40 (6) ◽

pp. 1431-1434 ◽

Cited By ~ 4

Author(s):

Leandro Torres de Souza ◽

Marcelo Curitiba Espíndula ◽

Valterley Soares Rocha ◽

Denise Cunha Fernandes dos Santos Dias ◽

Moacil Alves de Souza

Keyword(s):

Block Design ◽

Growth Retardant ◽

Control Treatment ◽

Growth Retardants ◽

Lack Of Information ◽

Randomized Block Design ◽

Physiological Quality ◽

Wheat Seeds ◽

Hierarchical Scheme

Plant lodging in wheat has been controlled through growth retardants. However, there is lack of information on the effect of these products on the physiological quality of seeds. The objective of this study was to evaluate the physiological quality of wheat seeds obtained under different rates and application times of three growth retardants. The trial was carried out in Viçosa-MG, from May to September 2005, in a factorial and hierarchical scheme, in randomized block design with four replications and a control treatment. The treatments consisted of 500, 1000 and 1500g ha-1 of chlormequat; 40, 80 and 120g ha-1 of paclobutrazol and 62.5, 125 and 187.5g ha-1 of trinexapac-ethyl applied at the 6 or 8 growth stage based on the scale of Feeks and Large, and a control treatment without growth retardant application. Leaf application of growth retardants as chlormequat, paclobutrazol and trinexapac-ethyl did not affect the germination and vigor of wheat seeds.

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Physiological quality of soybean seeds stored after industrial treatments with different chemicals

Research Society and Development ◽

10.33448/rsd-v10i2.12279 ◽

2021 ◽

Vol 10 (2) ◽

pp. e6310212279

Author(s):

Renata Cristiane Pereira ◽

Lucas Caiubi Pereira ◽

Alessandro Lucca Braccini ◽

Larissa Vinis Correia ◽

Murilo Fuentes Pelloso ◽

...

Keyword(s):

Block Design ◽

Accelerated Aging ◽

Storage Period ◽

Original Data ◽

Soybean Seeds ◽

Randomized Block Design ◽

Seedling Length ◽

Physiological Quality ◽

Main Components

This study aimed to relate the smallest set of variables that compose the quality of soybean seeds lot under study, as well as to evaluate the influence of four industrial seed treatments and their respective slurry volumes on the physiological potential. The experiment was carried out in a completely randomized block design with 4 replicates and 24 treatments. The chemical treatments were: control (T1), micronutrient + polymer + drying powder (T2), bioregulator + polymer + drying powder (T3) and micronutrient + bioregulator + polymer + drying powder (T4). The seeds were stored for periods of 0, 15, 30, 45, 60 and 90 days and were subsequently evaluated for their physiological potential. In each storage period, the variable germination, first count, accelerated aging, emergence speed index, final emergence in the sand substrate, aerial part length, root length and total seedling length were evaluated. The main components of the standard germination test and first count were the ones that most contributed to explaining the variability of the original data. Increasing the volume of the slurry in the industrial seed treatment reduces the physiological quality of soybean seeds during storage.

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PHYSIOLOGICAL AND SANITARY QUALITY OF DESICCATED AND STORED AZUKI BEAN SEEDS

Revista Caatinga ◽

10.1590/1983-21252016v29n108rc ◽

2016 ◽

Vol 29 (1) ◽

pp. 66-75 ◽

Cited By ~ 1

Author(s):

CÁSSIO JARDIM TAVARES ◽

PATRÍCIA CARDOSO FERREIRA ◽

ADRIANO JAKELAITIS ◽

JULIANA DE FÁTIMA SALES ◽

OSVALDO RESENDE

Keyword(s):

Seed Quality ◽

Block Design ◽

Azuki Bean ◽

Herbicide Application ◽

Seed Health ◽

Randomized Complete Block Design ◽

Physiological Quality ◽

Seed Health Test ◽

Health Test

ABSTRACT: The objective of this research was to evaluate the effects of using different herbicides as desiccants in pre-harvest and the effects of storage on the physiological and sanitary quality of azuki bean seeds (Vigna angularis Willd). The experiment was arranged in a randomized complete block design in a split plot scheme, with four replications. Four herbicides were tested: paraquat (400 g a.i. ha-1), glufosinate ammonium (400 g a.i. ha-1), glyphosate (720 g a.i. ha-1), flumioxazin (30 g a.i. ha-1) and a control without herbicide application. In the subplots seed quality was tested in two evaluation periods: at harvest and six months after harvest. Desiccant was applied when the azuki beans were physiologically mature. We assessed the physiological and sanitary quality of the seeds using a vigour and seed health test. The use of glyphosate resulted in a higher incidence of abnormal seedlings and reduced size and weight of the seedlings. With paraquat and flumioxazin the physiological quality was maintained and there was reduced pathogen infestation in the seeds six months after harvest. Storage affected the physiological quality of the azuki bean seeds.

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YIELD, PHYSIOLOGICAL QUALITY AND CHEMICAL COMPOSITION OF PHASEOLUS VULGARIS SEEDS, PRODUCED IN THE STATE OF RIO GRANDE DO SUL, BRAZIL

Revista Científica Rural ◽

10.30945/rcr-v22i2.3086 ◽

2020 ◽

Vol 22 (2) ◽

pp. 224-239

Author(s):

Tiago Pedó ◽

Angelita Celente Martins ◽

Dominique Dos Santos Delias ◽

Emanuela Garbin Martinazzo ◽

Vinícius Jardel Szareski ◽

...

Keyword(s):

Chemical Composition ◽

Starch Content ◽

Block Design ◽

Soluble Sugar ◽

Soluble Sugars ◽

Experimental Unit ◽

Agricultural Crops ◽

Randomized Block Design ◽

Physiological Quality

The objective of this study was to evaluate the yield and physiological quality of bean seeds in two agricultural crops, and the chemical composition of seedlings submitted to adverse temperatures during germination. For the field experiment, a randomized block design was used, using five genotypes, BRS Embaixador, IPR Tuiuiú, Guabiju, Carioquinha and Mouro, arranged in four replicates. The experimental units were composed of five lines with five meters in length, where 25 plants were randomly collected per experimental unit to measure the characters of interest. For laboratory testing the seeds produced were submitted to three temperatures (15, 25 and 35°C) during germination under controlled conditions. The evaluated characters were: grain yield, mass of a thousand seeds, germination, first germination count, starch content, soluble sugar, soluble protein and total amino acids. The data were submitted to analysis of variance and later compared by the Tukey test. Yield per plant revealed changes between the agricultural crops, as well as among the genotypes tested. Germination and the first germination count revealed higher magnitudes in seeds produced by BRS Embaixador, IPR Tuiuiu and Carioquinha genotypes. For all genotypes, protein and amino acid levels were higher in seedlings submitted to lower temperatures. The levels of starch and total soluble sugars were higher in seedlings produced at 35°C. Yield, seed physiological quality and chemical composition of seedlings are influenced by the crop and genotypes tested.

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Effect of harvest period on the quality of storage roots and protein content of the leaves in five cassava cultivars (Manihot esculenta, Crantz)

Brazilian Archives of Biology and Technology ◽

10.1590/s1516-89132003000200022 ◽

2003 ◽

Vol 46 (2) ◽

pp. 295-305 ◽

Cited By ~ 5

Author(s):

Edvaldo Sagrilo ◽

Pedro Soares Vidigal Filho ◽

Manoel Genildo Pequeno ◽

Carlos Alberto Scapim ◽

Maria Celeste Gonçalves Vidigal ◽

...

Keyword(s):

Protein Content ◽

Dry Matter ◽

Starch Content ◽

Block Design ◽

Matter Content ◽

Dry Matter Content ◽

Dry Matter Accumulation ◽

Storage Roots ◽

Fresh Matter

The effect of harvest period on the quality of storage roots and leaves of cassava cultivars was determined in an experiment carried out in a randomized complete block design with four replications in a split plot scheme, with five cultivars in the plots and ten harvest times in the subplots. The IAC 13 cultivar had the highest rate of dry matter accumulation in the storage roots and the Mico cultivar the lowest. The period of least dry matter content in the storage roots occurred later for the Fécula Branca, Mico and IAC 14 cultivars, and the minimum starch content in the storage roots occurred later for the Fécula Branca and Mico cultivars. In general, the IAC 13, IAC 14 and Fécula Branca cultivars had higher dry matter content in the storage roots, while higher starch content in the dry and fresh matter were obtained in the Fécula Branca cultivar. The crude protein content in the leaves decreased as the plant aged.

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New Interspecific Brassica Hybrids with High Levels of Heterosis for Fatty Acids Composition

Agriculture ◽

10.3390/agriculture10060221 ◽

2020 ◽

Vol 10 (6) ◽

pp. 221 ◽

Cited By ~ 1

Author(s):

Janetta Niemann ◽

Jan Bocianowski ◽

Kinga Stuper-Szablewska ◽

Tomasz Wojciechowski

Keyword(s):

Fatty Acids ◽

Block Design ◽

Interspecific Cross ◽

Oil Quality ◽

Hybrid Breeding ◽

Hybrid Line ◽

Brassica Napus L ◽

Breeding Programs ◽

Mean Values

Winter oilseed rape (Brassica napus L.) is the most important oil crop in Europe. Optimizing the profile and quantity of fatty acids in rapeseed is critical for maximizing the value of edible oil. Although the utilization of crop heterosis for hybrid breeding in rapeseed is limited by the relatively narrow genetic basis of adapted germplasm, an up-to-date significant effort has been made to broaden the rapeseed gene pool using different strategies. The present study was aimed to estimate heterosis for oil quality of the newly developed Brassica interspecific hybrids, using selected parental lines. For this purpose, five parental genotypes and twenty-two interspecific cross-derived Brassica lines were evaluated in a randomized complete block design with three replications in the Greater Poland region during 2009, 2010 and 2011. Generally, the variation among genotypes was evident for most of the tested fatty acids mean values, but the differences between genotypes were not always statistically significant when based on individual fatty acids (FAs). However, the highest number of significant heterosis effects was observed for behenic and lignoceric acids and for Brassica hybrid line H1. Based on obtained results it was possible to select one genotype—the hybrid line H5, which is recommended for further inclusion in the breeding programs.

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