Pub Date : 2020-02-13DOI: 10.5772/intechopen.89622
A. Hassan, M. Ijaz, A. Sattar, A. Sher, Samiullah, Iqra Rasheed, M. Saleem, I. Hussain
Cotton ( Gossypium hirsutum L.) is a vital fiber crop that is being cultivated under diverse climatic conditions across the globe. The demand for cotton and its by-products is increasing day by day due to more consumption of this fiber in the textile industry and the utilization of cotton seed as a source of edible oil. However, the average seed cotton yield in the world is below that of the potential yield of cultivars. The factors responsible for low yield includes shortage of approved seed, pest and disease attack, weed infestation, unwise use of nutrients, and the incidence of abiotic stresses (including drought, heat, and salinity). Among these, the abiotic stresses are a single major factor, which is responsible for reducing the yield now and will affect the productivity of cotton in future. In this scenario, it is necessary to adopt ways to improve the tolerance of cotton against abiotic stresses. The strategies for improving tolerance against abiotic stresses may include the wise use of macro-and micronutrients, the use of osmoprotectants, the use of arbuscular mycorrhizal fungi, and the plant-growth promoting rhizobacteria.
{"title":"Abiotic Stress Tolerance in Cotton","authors":"A. Hassan, M. Ijaz, A. Sattar, A. Sher, Samiullah, Iqra Rasheed, M. Saleem, I. Hussain","doi":"10.5772/intechopen.89622","DOIUrl":"https://doi.org/10.5772/intechopen.89622","url":null,"abstract":"Cotton ( Gossypium hirsutum L.) is a vital fiber crop that is being cultivated under diverse climatic conditions across the globe. The demand for cotton and its by-products is increasing day by day due to more consumption of this fiber in the textile industry and the utilization of cotton seed as a source of edible oil. However, the average seed cotton yield in the world is below that of the potential yield of cultivars. The factors responsible for low yield includes shortage of approved seed, pest and disease attack, weed infestation, unwise use of nutrients, and the incidence of abiotic stresses (including drought, heat, and salinity). Among these, the abiotic stresses are a single major factor, which is responsible for reducing the yield now and will affect the productivity of cotton in future. In this scenario, it is necessary to adopt ways to improve the tolerance of cotton against abiotic stresses. The strategies for improving tolerance against abiotic stresses may include the wise use of macro-and micronutrients, the use of osmoprotectants, the use of arbuscular mycorrhizal fungi, and the plant-growth promoting rhizobacteria.","PeriodicalId":326326,"journal":{"name":"Advances in Cotton Research","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125332341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-02-12DOI: 10.5772/intechopen.86012
C. S. Souza, J. U. Mendes
Cotton, a hydrophilic textile fiber, has unstable characteristics and, for this rea-son, it varies its properties according to the environmental changes. Moisture and temperature are the two most important factors that lead a cotton spinning sector and influence its quality. Those two properties can change the entire spinning process. Understanding this, moisture and temperature must be kept under control during the spinning process; once the environment is hot and dry, the cotton yarns absorb moisture and lose the minimal consistency. According to this information, this chapter was developed testing four types of cotton yarns, one kind of cotton from Brazil and the others from Egypt. The yarns were exposed to different temperatures and moisture in five different tests, and in each test, six samples were examined through physical and mechanical tests: resistance, strength, tenacity, yarn’s hairiness, yarn’s evenness, and yarn’s twisting. All the analyses were accom-plished at Laboratório de Mecânica dos Fluidos and at COATS Corrente S.A., where it was possible to use the equipment which were fundamental to development of this chapter, such as the STATIMAT ME, which measures strength, tenacity; Zweigler G566, which measure hairiness in the yarn; a skein machine; and a twisting machine. The analyses revealed alterations in the yarn’s characteristics in a direct way; for example, as moisture and temperature were increased, the yarn’s strength, tenacity, and hairiness were increased as well. Having the results of all analyses, it is possible to say that with a relatively low temperature and high humidity, cotton yarns have the best performance.
棉花是一种亲水性纺织纤维，具有不稳定的特性，因此它的性能会随着环境的变化而变化。湿度和温度是影响棉纺行业和棉纺质量的两个最重要的因素。这两个特性可以改变整个纺纱过程。了解了这一点，在纺纱过程中必须控制好湿度和温度;一旦环境炎热干燥，棉纱就会吸收水分，失去最小的稠度。根据这一信息，本章编写了四种棉纱，一种来自巴西，另一种来自埃及。将纱线置于不同的温度和湿度下进行5次不同的试验，每次试验中对6个样品进行物理和力学测试:抗力、强度、韧性、纱线毛羽度、纱线条干度和纱线捻度。所有的分析都是在Laboratório de mecnica dos Fluidos和COATS Corrente s.a.完成的，在那里可以使用对本章的发展至关重要的设备，例如测量强度和韧性的STATIMAT ME;Zweigler G566，测量纱线的毛羽度;绞纱机;还有一台扭丝机。分析结果直接揭示了纱线特性的变化;例如，随着湿度和温度的增加，纱线的强度、韧性和毛羽也会增加。根据所有分析的结果，可以说在相对较低的温度和较高的湿度下，棉纱的性能最好。
{"title":"Analyzing Chemical and Physical Variations in Selected Cotton Wires at Ambient Temperatures and Conditions","authors":"C. S. Souza, J. U. Mendes","doi":"10.5772/intechopen.86012","DOIUrl":"https://doi.org/10.5772/intechopen.86012","url":null,"abstract":"Cotton, a hydrophilic textile fiber, has unstable characteristics and, for this rea-son, it varies its properties according to the environmental changes. Moisture and temperature are the two most important factors that lead a cotton spinning sector and influence its quality. Those two properties can change the entire spinning process. Understanding this, moisture and temperature must be kept under control during the spinning process; once the environment is hot and dry, the cotton yarns absorb moisture and lose the minimal consistency. According to this information, this chapter was developed testing four types of cotton yarns, one kind of cotton from Brazil and the others from Egypt. The yarns were exposed to different temperatures and moisture in five different tests, and in each test, six samples were examined through physical and mechanical tests: resistance, strength, tenacity, yarn’s hairiness, yarn’s evenness, and yarn’s twisting. All the analyses were accom-plished at Laboratório de Mecânica dos Fluidos and at COATS Corrente S.A., where it was possible to use the equipment which were fundamental to development of this chapter, such as the STATIMAT ME, which measures strength, tenacity; Zweigler G566, which measure hairiness in the yarn; a skein machine; and a twisting machine. The analyses revealed alterations in the yarn’s characteristics in a direct way; for example, as moisture and temperature were increased, the yarn’s strength, tenacity, and hairiness were increased as well. Having the results of all analyses, it is possible to say that with a relatively low temperature and high humidity, cotton yarns have the best performance.","PeriodicalId":326326,"journal":{"name":"Advances in Cotton Research","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128004874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-07-26DOI: 10.5772/INTECHOPEN.88005
R. A. Afif, C. Pfeifer, T. Pröll
Cotton stalk (CS) plant residue left in the field following harvest must be buried or burned to prevent it from serving as an overwintering site for insects such as the pink bollworm (PBW). This pest incurs economic costs and detrimental environmental effects. However, CS contains lignin and carbohydrates, like cellulose and hemicelluloses, which can be converted into a variety of usable forms of energy. Thermochemical or biochemical processes are considered technologically advanta-geous solutions. This chapter reviews potential energy generation from cotton stalks through combustion, hydrothermal carbonization, pyrolysis, fermentation, and anaerobic digestion technologies, focusing on the most relevant technologies and on the properties of the different products. The chapter is concluded with some comments on the future potential of these processes.
{"title":"Bioenergy Recovery from Cotton Stalk","authors":"R. A. Afif, C. Pfeifer, T. Pröll","doi":"10.5772/INTECHOPEN.88005","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.88005","url":null,"abstract":"Cotton stalk (CS) plant residue left in the field following harvest must be buried or burned to prevent it from serving as an overwintering site for insects such as the pink bollworm (PBW). This pest incurs economic costs and detrimental environmental effects. However, CS contains lignin and carbohydrates, like cellulose and hemicelluloses, which can be converted into a variety of usable forms of energy. Thermochemical or biochemical processes are considered technologically advanta-geous solutions. This chapter reviews potential energy generation from cotton stalks through combustion, hydrothermal carbonization, pyrolysis, fermentation, and anaerobic digestion technologies, focusing on the most relevant technologies and on the properties of the different products. The chapter is concluded with some comments on the future potential of these processes.","PeriodicalId":326326,"journal":{"name":"Advances in Cotton Research","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116731045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-07-03DOI: 10.5772/INTECHOPEN.85214
M. Shahid, M. Shakeel, M. Farooq, Saghir Ahmad, A. Mahmood
Benefits and harmful effects of Bt adoption technology are mainly related with cotton production where lot of insecticides are needed for management of arthropod herbivory and possible negative impact of crystalline Bt protein on parasitoids and predators is real. Therefore, current review information was focused that Bt should be selective for natural enemies and information was collected from different sources especially CAB abstracts as well as citations from many review articles and books. Usefulness of integrated pest management was highlighted with updated literature to cover the contents.
{"title":"Tritrophic Association between Bt Cotton, Arthropod Pest and Natural Enemies","authors":"M. Shahid, M. Shakeel, M. Farooq, Saghir Ahmad, A. Mahmood","doi":"10.5772/INTECHOPEN.85214","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.85214","url":null,"abstract":"Benefits and harmful effects of Bt adoption technology are mainly related with cotton production where lot of insecticides are needed for management of arthropod herbivory and possible negative impact of crystalline Bt protein on parasitoids and predators is real. Therefore, current review information was focused that Bt should be selective for natural enemies and information was collected from different sources especially CAB abstracts as well as citations from many review articles and books. Usefulness of integrated pest management was highlighted with updated literature to cover the contents.","PeriodicalId":326326,"journal":{"name":"Advances in Cotton Research","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121857665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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