scholarly journals EMPLOYMENT OF NOT STANDARDIZED CONTAINERS BY RST AND THEIR INTERFERENCE IN THE PHYSIOLOGICAL QUALITY OF SEEDS OF Pinus elliottii

2020 ◽  
Vol 10 (1) ◽  
pp. 199-204
Author(s):  
Ivan Ricardo Carvalho
Keyword(s):  
Tissue Culture ◽  
Standardized Test ◽  
Pinus Elliottii ◽  
Cell Numbers ◽  
Blotting Paper ◽  
Health Quality ◽  
Physiological Quality ◽  
Different Diameters ◽  
Determining Factor

The determining factor for ensuring success in a forest enterprise is directly linked to the quality of the seeds used in the nursery. In this sense, the objective of this study was to evaluate the physiological quality of Pinnus Elliotis in different containers compared to the standardized test by RST. Cellboxes (tissue culture boxes), with different diameters and cell numbers, respectively (0.7, 1.1, 16 and 21 mm and 96, 48, 24, 12) with circular blotting paper substrates were used. The experimental design used was a completely randomized with 5 treatments and 8 repetitions. The treatment (T1) showed the highest average germination and the lowest fungal infestation, compared to the gerbox container. Cellbox containers showed better values for germination, showing that the division of cells positively influences the health quality of Pinus elliottii Engelm var. elliottii.

scholarly journals Effect of the Storage Period and Fungicide Treatment on the Physiological and Sanitary Quality of Soybean Seeds

2019 ◽  
pp. 1-13
Author(s):  
Thalles Alexandre Xavier Pereira ◽  
Pedro Silvério Xavier Pereira ◽  
Dejânia Vieira de Araújo ◽  
Dryelle Sifuentes Pallaoro ◽  
Aloisio Bianchini ◽  
...  
Keyword(s):  
Dry Matter ◽  
Accelerated Aging ◽  
Storage Period ◽  
Soybean Seeds ◽  
Methyl Thiophanate ◽  
Health Quality ◽  
Physiological Quality ◽  
The Difference ◽  
Seedling Germination

This study evaluated the effect of storage period on the physiological and health quality of soybean seeds. The experiment was arranged in a factorial scheme (4 x 2 x 2) with four periods of storage (0, 2, 4 and 6 months), two soybean cultivars (‘BRS Pintado’ and ‘MSOY 8866’) and treated and untreated seeds with the formulated mixture of active ingredients pyraclostrobine (25 g i.a L-1) + Methyl-Thiophanate (225 g i.a L-1) + fipronil (250 g i.a L-1) in a 0,1 L.ha-1 dosage of the commercial product. Concerning health, there was a reduction of Aspergillus spp., Cercospora kikuchii, Colletotrichum dematium var. truncata and Fusarium spp fungus when periods of storage were increased independently if storage interactions occurred due to cultivar, treatment and/or all analyzed factors. cv. ‘BRS Pintado’ stood out by presenting lower results on the occurrence of fungi. The isolated cultivar factor presented a significant result concerning the physiological quality and c.v. ‘BRS Pintado’ showed better results in the variables: germination of seeds from the speed aging test, germination, shoot lenght from the speed emergence test, and both shoot dry matter and root dry matter of germination. There was an interaction for the speed emergence index variable between storage versus cultivar, in which cv. ‘BRS Pintado’ achieved better average results in all periods of storage. The storage factor alone was significant for shoot length of plants from the speed emergence index, the shoot plant dry matter from the emergency speed index, root dry matter of seedling germination and germination of seeds subjected to accelerated aging. The isolated treatment factor was significant in the germination variable and the untreated seeds showed better results in relation to the treated ones. However, the difference of these values would not be significant at the field. Treated seeds showed better results compared to untreated ones in most of the analyzed variables and their association with seeds storage did not affect the physiological quality evaluation during six months of evaluation, enabling the maintenance of the health quality of seeds.

scholarly journals Influence of physiological and health quality on the vigor of cucumber seeds

2019 ◽  
Vol 86 ◽  
Author(s):  
Vanessa Nogueira Soares ◽  
Francisco Amaral Villela ◽  
Aline Klug Radke ◽  
Hélen Claudine Saliba Rodrigues ◽  
Vanessa Pinto Gonçalves ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Seedling Emergence ◽  
Seed Vigor ◽  
Physiological Performance ◽  
Penicillium Sp ◽  
Cucumber Seed ◽  
Health Quality ◽  
Physiological Quality ◽  
Controlled Deterioration

ABSTRACT The physiological performance of seeds is related to their physiological quality and seed vigor, while their health quality may interfere with germination and early seedling establishment in the field due to the interaction of microorganisms associated with seeds. The study aimed to evaluate the physiological performance and health quality of cucumber seeds and to verify the relationship between these attributes. The physiological quality of cucumber seeds was evaluated by standard germination tests, first count of germination, controlled deterioration test, electrical conductivity test, seedling emergence, emergence speed index, and traditional accelerated aging and aging modified with saline for 48, 72, and 96 h. The health quality of cucumber seed lots was evaluated by blotter test. Stratification of cucumber seed lots by seedling emergence was similar to seedling emergence by controlled deterioration test, first count of germination, and electrical conductivity results. The cucumber seed lots evaluated showed high germination rates; however, lots 1 and 3 had a better performance in vigor tests than lots 2 and 4. Fungi detected in the blotter test were Alternaria sp., Aspergillus sp., Cladosporium sp., and Penicillium sp. Seed lots 2 and 4 had low vigor evaluated by seedling emergence and controlled deterioration, and showed a higher incidence of Penicillium sp. in the evaluation of health quality of seeds. The incidence of Penicillium sp. may negatively affect the vigor of cucumber seeds evaluated by seedling emergence and by controlled deterioration test.

scholarly journals Quality of soybean seeds treated with fungicides and insecticides before and after storage

2016 ◽  
Vol 38 (4) ◽  
pp. 278-286 ◽  
Author(s):  
Thaís Francielle Ferreira ◽  
João Almir Oliveira ◽  
Rafaela Aparecida de Carvalho ◽  
Laís Sousa Resende ◽  
Cassiano Gabriel Moreira Lopes ◽  
...  
Keyword(s):  
Seed Treatment ◽  
Seedling Emergence ◽  
Control Group ◽  
Soybean Seeds ◽  
Before And After ◽  
Negative Effect ◽  
Health Quality ◽  
Physiological Quality ◽  
Treatment Application

Abstract: The timing of seed treatment application is important to keep soybean seeds quality. Therefore, the aim of this study was verify the effect of fungicides and insecticides treatment in soybean seeds quality before and after storage. Seeds of NS 7494, NS 8693 and NS 7338 IPRO were utilized and analyses separately, through a factorial scheme 3x6, with three application moments: treated and assessed; treated, stored and assessed; stored, treated and assessed; and six combination of fungicides and insecticides: Cropstar(r) + Derosal Plus(r); Cropstar(r) + Maxim xl(r); Cruiser(r) + Derosal Plus(r); Cruiser(r)+ Maxim xl(r); Standak Top(r) and the control group. Germination, seedling emergence, accelerate aging, cold and health tests were performed. It was determined that the combination with Cruiser(r) doesn't affect the physiological quality of soybean seeds treated and assessed, and treated after two month of storage. Cropstar(r) + Derosal plus(r) keeps physiological quality of soybean seeds stored and treated for two months, while Standak top(r) has negative effect. The combination with Cropstar(r) damages the physiological quality of soybean seeds treat after two months of storage. The fungicide Derosal plus(r) improves the health quality of soybean seeds regardless treatment moment.

scholarly journals Effect of chemical treatment on the physiological and sanitary quality of stored coffee seeds

2021 ◽  
Vol 43 ◽  
Author(s):  
Amanda Carvalho Penido ◽  
Vitor Oliveira Rodrigues ◽  
Marcos Vinícios de Carvalho ◽  
Levi Suzigan Krepischi ◽  
Cristiane Carvalho Pereira ◽  
...  
Keyword(s):  
Chemical Treatment ◽  
Coffea Arabica ◽  
Seed Quality ◽  
Inoculum Potential ◽  
Storage Fungi ◽  
Seed Health ◽  
Health Quality ◽  
Physiological Quality ◽  
Emergence Percentage

Abstract: Maintaining the health of coffee seeds is especially important during storage, as soil fungi and storage fungi can considerably reduce seed quality. Thus, chemical treatments for protection of seeds in storage becomes important in agricultural production. It is necessary to evaluate the effects of these treatments on seedling development and the protection they provide against storage fungi, aiming at seed longevity and preventing rapid deterioration. The aim of this study was to evaluate the effect of chemical treatment on the physiological and sanitary quality of stored coffee seeds. Seeds of five Coffea arabica cultivars were pre-dried, treated with Vitavax®-Thiram, and placed in cold storage at 10 °C for nine months. Seed physiological quality was evaluated every three months by the germination test and by determination of root emergence percentage, seedlings with expanded cotyledonary leaves, and seedling dry matter. Seed health quality was assessed by the health test. The chemical treatment with Vitavax-Thiram does not affect the physiological quality of stored Coffea arabica seeds. Seed treatment before storage is effective in reducing the inoculum potential of Fusarium spp. and Phoma spp. in coffee seeds.

scholarly journals Essential oils control anthracnose in pepper seeds

2020 ◽  
Vol 9 (10) ◽  
pp. e7619109028
Author(s):  
Daniele Maria do Nascimento ◽  
Paula Leite dos Santos ◽  
Marcos Roberto Ribeiro-Junior ◽  
Maria Márcia Pereira Sartori ◽  
Adriana Zanin Kronka
Keyword(s):  
Essential Oils ◽  
Seed Treatment ◽  
Syzygium Aromaticum ◽  
Tea Tree ◽  
Natural Substances ◽  
Health Quality ◽  
Physiological Quality ◽  
Clove Essential Oil ◽  
And Control

Pepper (Capsicum annum) is one of the main vegetables consumed in the Brazilian market, however, an important fungal disease, anthracnose, caused by Colletotrichum gloeosporioides, can decimate all its fruits in the field. Chemical control is the most commonly used measure of control, but, some active ingredients are proving ineffective, and consumers appreciate healthier options such as organic foods. Therefore, studies with natural substances that may help in the management of diseases have been encouraged. Because it is transmitted via seed, seed treatment becomes an essential measure in the management and control of pepper anthracnose. The objective of this study was to evaluate the effect of basil (Ocimum basilicum), citronella (Cymbopogon winterianus), clove (Syzygium aromaticum), copaiba (Copaifera langsdorfii), eucalyptus (Eucalyptus citriodora), mint (Mentha arvensis), rosemary (Rosmarinus officinalis) and tea tree (Melaleuca alternifolia) essential oils on the development of C. gloeosporioides. Citronella, clove, eucalyptus, mint and basil essential oils totally inhibited the pathogen, regardless of the concentration used. These essential oils were then used to treat seeds infected with C. gloeosporioides, evaluating the physiological and health quality of these seeds. Clove essential oil reduced the incidence of fungi in seeds inoculated with the pathogen, without affecting their physiological quality.

scholarly journals Physiological quality of soybean seeds treated with different spray volumes

2013 ◽  
Vol 35 (4) ◽  
pp. 501-509 ◽  
Author(s):  
Samantha Rigo Segalin ◽  
Ana Paula Piccinin Barbieri ◽  
Caroline Huth ◽  
Manoela Beche ◽  
Nilson Matheus Mattioni ◽  
...  
Keyword(s):  
Seed Quality ◽  
Mechanical Damage ◽  
Dry Weight ◽  
Physical Parameters ◽  
Soybean Seeds ◽  
Liquid Form ◽  
Physiological Quality ◽  
Index Tests ◽  
Different Diameters

The aim of this study was to define the influence of treatments with different seed spray volumes and their effects on the physical and physiological quality. The soybean seeds from cultivars NA 5909 RG and BMX Potência RR were used and three lots of each cultivar were selected in sieves of different diameters (5.5; 6.0 and 6.5 mm). The treatments consisted of different seed volumes: 1) non-treated seeds; 2) 600 mL.100 kg of seeds-1; 3) 800 mL.100 kg of seeds-1; 4) 1000 mL.100 kg of seeds-1; 5) 1200 mL.100 kg of seeds-1; 6) 1400 mL.100 kg of seeds-1. The physical parameters evaluated were mechanical damage, water content and variations in the length and width of the seeds. The physiological seed quality was determined by germination, first count germination, length and dry weight of seedlings, field emergence and emergence speed index tests. In terms of use of the product in liquid form, it is possible to use the treatment in spray volumes up to 1400 mL.100 kg seed-1, regardless the cultivar or seed size and without damaging the soybean seeds physically and physiologically.

scholarly journals RR soybean seed quality after application of glyphosate in different stages of crop development

2012 ◽  
Vol 34 (3) ◽  
pp. 373-381 ◽  
Author(s):  
Leandro Paiola Albrecht ◽  
André Prechlak Barbosa ◽  
André Felipe Moreira Silva ◽  
Matheus Akiyama Mendes ◽  
Alfredo Júnior Paiola Albrecht ◽  
...  
Keyword(s):  
Seed Quality ◽  
Developmental Stages ◽  
Soybean Seed ◽  
Dry Mass ◽  
Transgenic Soybean ◽  
Scientific Investigations ◽  
Seed Health ◽  
Health Quality ◽  
Physiological Quality

In consequence of several studies and speculations concerning the issue of RR transgenic soybean after the application of glyphosate, additional scientific investigations became necessary to clarify the actual viability of the product use when applied in different developmental stages of the soybean crop. Therefore, this study was aimed to evaluate the physiological quality as well as seed health quality of RR soybean subjected to application of the herbicide glyphosate in different phonological stages of the transgenic soybean, cultivar CD 219RR. For this, an experiment with a complete block experimental design with treatments randomly distributed within the block, with four replications, was carried out. The assessed treatments were foliar sprayings of glyphosate in three increasing dosages [0 (control); 1,440 g ha-1; and 2,880 g ha-1] of acid equivalent, applied in two crop developmental stages: vegetative (V6) and reproductive (R2). The variables assessed were: germination; first count of germination; fresh and dry mass of seedlings, lengths of seedling and root; vigor and viability by the tetrazolium test; and seed health quality. Glyphosate application may adversely affect physiological quality of RR soybean seeds, when applied in dosages varying from 1,440 to 2,880 g acid equivalent per hectare at the stages V6 and R2.

Impact of Organizational Culture and Teacher Performance on Quality of Learning Processes

2020 ◽  
Vol 4 (2) ◽  
pp. 95-110
Author(s):  
Buyung Syukron ◽  
Andi Thahir ◽  
Tin Amalia Fitri ◽  
Asep Rohman
Keyword(s):  
Organizational Culture ◽  
Elementary Schools ◽  
Learning Process ◽  
Teacher Performance ◽  
Work Culture ◽  
Timely Manner ◽  
Quality Learning ◽  
The City ◽  
Determining Factor

The learning process in madrasas (Islamic-based elementary schools) is seen as being able to contribute to instilling values and norms in students following Islamic teachings. The issue of organizational culture and teacher performance also becomes a determining factor in creating a quality learning process. In this research, the aim is to determine: 1) the effect of organizational culture on the quality of the learn-ing process; 2) the effect of teacher performance on the quality of the learning process; and 3) the influ-ence of organizational culture on teacher performance. Respondents in this study were all class teachers from three madrasas as a sample representing all public madrasas in the city of Bandar Lampung, Indo-nesia. The results obtained indicate that the variables of organizational culture and the quality of the learning process have an influence, with R squared of 0.67 or 67%, which is classified as moderate. This shows that madrassas have implemented predetermined work culture values, namely: a) integrity, the harmony between correct thoughts, words, and deeds; b) professionalism, working in a disciplined, competent, and timely manner with the best results; c) innovation, perfecting existing and creating new and improved techniques and ideas; d) responsibility, working thoroughly and with thought for the con-sequences; and e) being exemplary, setting a good example for others.

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