scholarly journals Physiological adjustments, fiber yield and quality of colored cotton BRS Topázio cultivar under leaf silicon spraying

2021 ◽  
Vol 45 ◽  
Author(s):  
Rener Luciano de Souza Ferraz ◽  
Patrícia da Silva Costa ◽  
Ivomberg Dourado Magalhães ◽  
Aldair de Souza Medeiros ◽  
Pedro Roberto Almeida Viégas ◽  
...  
Keyword(s):  
Fiber Quality ◽  
Quality Data ◽  
Semiarid Region ◽  
Cotton Production ◽  
Production Chain ◽  
Yield And Quality ◽  
Fiber Yield ◽  
Colored Cotton ◽  
Physiological Adjustments

ABSTRACT Abiotic stresses reduce the yield and quality of cotton production, however, this problem may be mitigated by exogenous elicitors. This study investigated physiological adjustments, improvement in productivity, and fiber yield and quality from naturally colored cotton BRS Topázio cultivar under leaf silicon spraying. Five doses of silicon (0, 50, 100, 150, and 200 mg L-1) were tested in a completely randomized design. The variables assessed were physiological, production, fiber yield and quality. Data were submitted to principal component analysis, multivariate and univariate variance, and multiple linear regression. Silicon promotes physiological adjustments, increased production, cotton fiber yield and quality. Optimum silicon dose varies depending on the variable response. Fiber quality from plants treated with silicon is within the expected pattern for this cultivar and the international standard D-4605 of the American Society for Testing and Materials. Therefore, planting BRS Topázio cultivar under silicon foliar applications may be recommended to improve the naturally colored fiber cotton production chain in the Brazilian semiarid region.

Silicon Promotes Physiological Adjustments, Fiber Yield and Quality Improvement of Naturally Colored Cotton BRS Safira

2021 ◽  
pp. 1-11
Author(s):  
Rener Luciano de Souza Ferraz ◽  
Patrícia da Silva Costa ◽  
Ivomberg Dourado Magalhães ◽  
Pedro Roberto Almeida Viégas ◽  
Igor Eneas Cavalcante ◽  
...  
Keyword(s):  
Quality Improvement ◽  
Yield And Quality ◽  
Fiber Yield ◽  
Colored Cotton ◽  
Physiological Adjustments ◽  
Naturally Colored Cotton

scholarly journals Management of Biostimulant and Silicon in Mineral Nutrition and Quality of Cotton Fiber

2018 ◽  
Vol 10 (10) ◽  
pp. 476
Author(s):  
William H. Fichhof ◽  
Ricardo de A. Silva ◽  
Luan S. de Oliveira ◽  
Rudieli M. da Silva
Keyword(s):  
Mineral Nutrition ◽  
Abiotic Stresses ◽  
Fiber Quality ◽  
Block Design ◽  
Nutrient Content ◽  
Yield And Quality ◽  
Fiber Yield ◽  
Randomized Block Design ◽  
Relative Water

Silicon (Si) and biostimulant management have been proposed techniques to reduce the impacts of abiotic stresses and to increase the productivity of several crops, however, there are still few concise results of the management of this crop. The objective of this work was to evaluate the effects of biostimulant and silicon treatments on isolated or mixed applications on mineral nutrition, yield and fiber quality of two cotton varieties. For this, an experiment was carried out in a randomized block design in the municipality of Luís Eduardo Magalhães-BA, in a 4 × 2 factorial arrangement, with four replications, in which four biostimulant treatments (control, without application; Si; biostimulant; and Si + biostimulant) were evaluated in two cotton varieties (FM 954GLT and FM 983GLT). The nutrient content of leaves, relative water content, electrolyte leakage, fiber yield, and quality were evaluated, the data collected were submitted to the F test and means were compared by Tukey at 5% probability. At the end of the experiment, it was verified that the management of Si and biostimulants increase the integrity of the cell wall, the association of Si + biostimulant increases the levels of N, Fe and Si foliar and reduces the levels of B and Mn, and do not influence on yield and fiber quality.

scholarly journals Effect of N fertilization rate on soil alkali-hydrolyzable N, subtending leaf N concentration, fiber yield, and quality of cotton

2016 ◽  
Vol 4 (4) ◽  
pp. 323-330 ◽  
Author(s):  
Binglin Chen ◽  
Hongkun Yang ◽  
Weichao Song ◽  
Chunyu Liu ◽  
Jiao Xu ◽  
...  
Keyword(s):  
Fertilization Rate ◽  
N Fertilization ◽  
Yield And Quality ◽  
Fiber Yield ◽  
N Concentration ◽  
Leaf N Concentration ◽  
Leaf N

scholarly journals Studying Quality Characteristics of Flax Fiber Depending on Deseeding Device Design

2018 ◽  
Vol 28 (3) ◽  
pp. 389-399 ◽  
Author(s):  
Alexey V. Galkin ◽  
Denis G. Fadeev ◽  
Igor V. Uschapovsky
Keyword(s):  
Fiber Quality ◽  
Flax Fiber ◽  
Fiber Flax ◽  
Advantages And Disadvantages ◽  
Yield And Quality ◽  
Russian Research Institute ◽  
Vegetation Stage ◽  
Positive Effect ◽  
Flax Straw

Introduction. The processe of harvesting fiber flax is characterized by tough interactions of the work tools of the flax puller and parts of plants. Different principles and design of work tools for taking out seed bolls from the stem, used in flax harvesting machines, have both advantages and disadvantages. Single-drum comb deseeders are the most effective, but the level of damage to the stems caused during the working of these mechanisms is high. The purpose of this work is the experimental substantiation of constructive changes in the comb deseeder, which allows reducing damage to the stems of the flax fiber in the process of combing and improving the quality of the flax material. Materials and Methods. Fields and laboratories studies of flax harvesting and technological tests of flax straw and fiber were carried out according to the existing methods and standard protocols (GOST). The influence of the harvesting combine speed and deseeder type (the drum for the taking flax balls off by the stems’ combing and for the transporting removed balls to hopper) on the yield and quality of the fiber were determined. The fiber flax variety Alexim (cultivated by All Russian Research Institute for Flax Production, Torzhok) was used as a plant object and the harvesting was carried out in the vegetation stage “yellow stem” – “full ripeness”. Results. The classical design of the combing drum with four ridges for deseeding was changed to three ones that means only one of ridges should be in the layer of flax stems during the combing process. That design could decrease damage to the stems when deseeding stems. Instrumental assessment of fiber shows that after the deseeding by the threeridges drum the quality of flax straw was 0.97–1.09 numbers that was by 0.19–0.28 numbers higher than after using four-ridges drums. Conclusions. The obtained data indicate that the reducing of the load on the flax stems has a positive effect on the quality of the fibrous products. The yield of long fiber increases by 1.27–1.54% (abs.), and the fiber quality – by 0.3 numbers.

scholarly journals Impact of Chemical Defoliants on Chlorophyll Fluorescence, Biochemical Parameters, Yield and Fiber Quality of High Density Cotton

2021 ◽  
Author(s):  
P. Chandrasekaran ◽  
V. Ravichandran ◽  
A. Senthil ◽  
L. Mahalingam ◽  
N. Sakthivel
Keyword(s):  
Tamil Nadu ◽  
Fiber Quality ◽  
High Density ◽  
Field Analysis ◽  
Leaf Abscission ◽  
Cotton Production ◽  
Physiological Basis ◽  
Time Of Application ◽  
Yield And Quality ◽  
Boll Rot

Background: The Cotton growing farmers in India are facing major problem at the time of harvest due to labor shortages, asynchronized boll opening, leaf trash in the cotton, which is reducing the boll picking efficiency and fiber quality. Presently, the Indian cotton industry is moving towards mechanical harvesting by cotton harvester. Defoliation or leaf abscission is induced in cotton as a natural physiological process which usually is inadequate for a complete mechanical harvest of cotton. Defoliation before harvest is often induced by managing the plants so that senescence, abscission (separation) layer development and leaf drop are encouraged. Chemical defoliants induce leaf abscission, hasten mature boll dehiscence and inhibit re­ growth. Selection of appropriate defoliants is one of the critical decisions in cotton production. Their use can result in increased manual as well as machine harvest efficiency, reducing boll rot and the trash in seed cotton. The physiological basis of defoliation in cotton is essential to understand the role of appropriate defoliant with time of application. Hence, the objective of the study was to evaluate the defoliation efficiency, boll opening percentage and to know the physiological basis of defoliation in response to different defoliants and time of application in high density Cotton cultivation which eases the mechanical harvesting.Methods: In this field investigation during 2018 - 2019 at Department of Crop Physiology, Tamil Nadu Agricultural University, Coimbatore was carried with seven different defoliants and three different time of defoliants application were fixed based on crop maturity and duration of the crop. In this study, high density cotton variety CO 17 was used as experimental material. A series of lab and field analysis were determined on defoliation process, physiological attributes, boll opening percentage and seed yield and quality. The collected data were subjected to statistical analysis.Result: Our investigation exploring the effect of different defoliants on physiological, biochemical, yield and quality parameters of high density Cotton. Among the different defoliants and time of applications, two defoliants and two times of applications works better in terms of better defoliation, boll opening rate, physiology, yield and quality. The physiological and biochemical effects of defoliants on defoliation process were discussed. The present work will be useful for mechanized picking with these effective defoliants without loss of yield and quality loss in cotton.

Effect of IAA and GA3on the Anatomical Characteristics, Straw and Fiber Yield and Quality of Flax

1995 ◽  
Vol 174 (1) ◽  
pp. 21-26 ◽  
Author(s):  
M. N. El-Shourbagy ◽  
Bahia A ◽  
Abdel Ghaffar ◽  
R. A. El-Naggar
Keyword(s):  
Anatomical Characteristics ◽  
Yield And Quality ◽  
Fiber Yield

scholarly journals No Tradeoff in Fiber Quality with Increased Cotton Yield Due to Outcross Pollination

2021 ◽  
Vol 13 (11) ◽  
pp. 6079
Author(s):  
Sarah Cusser ◽  
Shalene Jha
Keyword(s):  
Ecosystem Services ◽  
Fiber Length ◽  
Crop Production ◽  
Fiber Quality ◽  
Economic Benefits ◽  
Yield And Quality ◽  
Fiber Yield ◽  
Fiber Fineness ◽  
Hand Pollination ◽  
Insight Into

The societal and economic benefits of ecosystem services are both immense and multi-faceted. To holistically quantify the contribution of pollinators to agriculture requires measuring multiple indices of crop production beyond crop yield. Here, we conduct a field-based hand pollination experiment to measure the effects of self and outcross pollen on fiber yield and quality in conventionally managed cotton crops. First, we determine how different pollination treatments affect specific indices of fiber yield and fiber quality, including fiber length and fineness. Second, we investigate the suggested tradeoff between fiber yield and quality. We find that flowers receiving outcross pollen produce larger, heavier bolls than either self-crossed or non-crossed flowers. However, contrary to expectation, flowers of different treatments are indistinguishable in terms of fiber quality. Overall, we find that pollination treatment has no discernable effect on either fiber length or fiber fineness. Understanding the contribution of ecosystem services across multiple axes provides growers with information concerning potential tradeoffs or synergies, and offers insight into management decisions.

scholarly journals Shading on Yield and Quality of Lettuce Cultivars in Semiarid Conditions

2019 ◽  
Vol 11 (11) ◽  
pp. 162
Author(s):  
Claudio de O. Costa Júnior ◽  
Roberto Cleiton F. de Queiroga ◽  
Caio da S. Sousa ◽  
Cidia Cilene de Figueiredo ◽  
Evandro Franklin de Mesquita ◽  
...  
Keyword(s):  
Dry Mass ◽  
Soluble Solids ◽  
Temperate Climate ◽  
Semiarid Region ◽  
State University ◽  
Aerial Shoot ◽  
Yield And Quality ◽  
Different Levels ◽  
Semiarid Conditions

Lettuce is a crop originating from temperate climate, and for this reason, when cultivated in semiarid region, characterized by high luminosity and temperature, major losses in productivity and quality occur. The objective of this work was to evaluate the influence of different levels of shade on yield and quality of lettuce cultivars in semiarid conditions. The experiment was conducted under field conditions at the Human and Agricultural Sciences Center at State University of Paraiba, Brazil, in randomized blocks with parcels divided into 4 × 4 factorial space, and four repetitions. The parcels received different shading levels (0, 30, 50 and 70%) with black polypropylene screen and sub parcels by lettuce cultivars: ‘Americana Irene’, ‘White Boston’, ‘Regina de Verão’ and ‘Green Salad Bowl’. The shading promoted higher performance in height, stem diameter, root length, pH and dry mass of lettuce plants when compared to those grown in the open-air, being the shading of 70% the more efficient. The ‘Americana Irene’ cultivar was distinguished in terms of plant height, foliage area, leaves dry mass and soluble solids, independently from the cultivation environment. With the shading, this cultivar improved the aerial shoot-root ratio and root dry mass.

scholarly journals Search for ways to increase yield and improve product quality in the process of saw ginning

2021 ◽  
Vol 939 (1) ◽  
pp. 012073
Author(s):  
M Agzamov ◽  
M Rakhmatov ◽  
M Agzamov ◽  
O Olimov ◽  
K Nosirov
Keyword(s):  
Product Quality ◽  
Vas Deferens ◽  
Improve Product Quality ◽  
Working Chamber ◽  
Average Value ◽  
Improve Product ◽  
Yield And Quality ◽  
Fiber Yield ◽  
Production Conditions

Abstract This article presents the results of research on increasing fiber yield and improving product quality by using a new design of the vas deferens from the working chamber. It has been experimentally established that the most rational in terms of yield and quality of fiber, seeds and gin productivity is the position of the seed comb when the axes of its pegs are directed 5-10 degrees above the axis of the saw cylinder. The smallest value of complete hairiness of seeds after gin was obtained when installing a lamellar seed comb. Its average value was 13.8%. At the same time, the fiber yield was maximum - 34.66%, and the highest productivity - 8.5 kg of fiber per saw per hour. The influence of the distance between the ends of the seed comb pegs and grates at their values of 10, 20, 30 mm on the ginning indices was investigated. A distance of 20 mm is recognized as optimal taking into account all indicators - fiber yield, complete pubescence, productivity, quality of fiber and seeds. An experimental working chamber equipped with lamellar combs was made. It has been tested in the production conditions of a pilot cotton mill.

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