Intragenome distribution of 5-methylcytosine in DNA of healthy and wilt-infected cotton plants (Gossypium hirsutum L.)

1975 ◽  
Vol 2 (1) ◽  
pp. 59-63 ◽  
Author(s):  
Vilgeny A. Guseinov ◽  
Gleb I. Kiryanov ◽  
Boris F. Vanyushin
Keyword(s):  
Gossypium Hirsutum ◽  
Gossypium Hirsutum L ◽  
Cotton Plants

scholarly journals IRRIGAÇÃO SUPLEMENTAR DO ALGODOEIRO COM ÁGUA RESIDUÁRIA TRATADA: ANÁLISES BIOMÉTRICAS E PRODUÇÃO DE BIOMASSA

Irriga ◽  
2020 ◽  
Vol 25 (4) ◽  
pp. 683-688
Author(s):  
Antonio Flavio Batista De Araujo ◽  
Claudivan Feitosa de Lacerda ◽  
Eduardo Santos Cavalcante ◽  
Jonnathan Richeds da Silva Sales ◽  
Raimundo Nonato Távora Costa ◽  
...  
Keyword(s):  
Gossypium Hirsutum ◽  
Block Design ◽  
Treated Wastewater ◽  
Severe Drought ◽  
Gossypium Hirsutum L ◽  
Stage Of Development ◽  
Supplementary Irrigation ◽  
Historical Series ◽  
Cotton Plants ◽  
E Mail

IRRIGAÇÃO SUPLEMENTAR DO ALGODOEIRO COM ÁGUA RESIDUÁRIA TRATADA: ANÁLISES BIOMÉTRICAS E PRODUÇÃO DE BIOMASSA     ANTONIO FLAVIO BATISTA DE ARAUJO1; CLAUDIVAN FEITOSA DE LACERDA2; EDUARDO SANTOS CAVALCANTE3; JONNATHAN RICHEDS DA SILVA SALES4; RAIMUNDO NONATO TÁVORA COSTA5 E FERNANDO BEZERRA LOPES6.   1Doutorando, Departamento de Engenharia Agrícola, UFC, Av. Mister Hull 2977, Bloco 804, Campus do Picí, 60450-760, Fortaleza, Ceará, Brasil, e-mail: [email protected].   2Professor Doutor, Departamento de Engenharia Agrícola, UFC, Av. Mister Hull 2977, Bloco 804, Campus do Picí, 60450-760, Fortaleza, Ceará, Brasil, e-mail: [email protected].  3Doutor, Departamento de Engenharia Agrícola, UFC, Av. Mister Hull 2977, Bloco 804, Campus do Picí, 60450-760, Fortaleza, Ceará, Brasil, e-mail: [email protected]. 4Mestrando Departamento de Engenharia Agrícola, UFC, Av. Mister Hull 2977, Bloco 804, Campus do Picí, 60450-760, Fortaleza, Ceará, Brasil, e-mail: jonnathanagro@gmail,com.  5Professor Doutor, Departamento de Engenharia Agrícola, U.F.C, Av. Mister Hull 2977, Bloco 804, Campus do Picí, 60450-760, Fortaleza, Ceará, Brasil, e-mail: [email protected]. 6Professor Doutor, Departamento de Engenharia Agrícola, U.F.C, Av. Mister Hull 2977, Bloco 804, Campus do Picí, 60450-760, Fortaleza, Ceará, Brasil, e-mail: [email protected].     1 RESUMO   O uso das águas residuárias tratadas em lagoas de estabilização na irrigação suplementar, desponta como uma estratégia para incrementar a produção agrícola de forma sustentável durante a estação das chuvas, eliminando, pelo menos parcialmente, as perdas associadas aos veranicos. Nesse contexto, o objetivo deste trabalho foi avaliar os impactos da irrigação suplementar do algodoeiro, sem e com adubação química com NPK, e simulando-se as condições de umidade do solo baseada em uma série histórica de dados de precipitação dos últimos 30 anos para a região do Baixo Jaguaribe-CE, considerando-se cenários normais, seca e seca severa. A pesquisa foi desenvolvida no município de Russas – CE, em uma área vizinha à lagoa de estabilização da CAGECE. O ensaio foi instalado em delineamento em blocos ao acaso, com arranjo dos tratamentos em parcelas subsubdivididas, com quatro repetições. Os resultados mostram impactos de cenários hídricos e da suplementação sobre a maioria das variáveis de crescimento das plantas de algodoeiro. A irrigação suplementar com águas residuárias incrementa a produção de biomassa e o vigor das plantas de algodão durante a fase inicial de desenvolvimento, independente da presença ou ausência da adubação com NPK. Esses efeitos foram significativos especialmente nos cenários de seca e seca severa.   Palavras-chave: Gossypium hirsutum L, reuso de água, Irrigação.     ARAUJO, A. F. B.; LACERDA, C. F.; CAVALCANTE, E. S.; SALES, J. R. S.; COSTA, R. N. T.; LOPES, F. B. SUPPLEMENTAL IRRIGATION OF COTTON WITH TREATED WASTEWATER: BIOMETRIC ANALYSIS AND BIOMASS PRODUCTION     2 ABSTRACT   The use of treated wastewater in stabilization ponds for supplementary irrigation emerges as a strategy to increase agricultural production sustainably during the rainy season, eliminating, at least partially, the losses associated with summer. In this context, this work evaluated the impacts of supplementary cotton irrigation, without and with chemical fertilization with NPK, on soil moisture conditions based on a historical series of precipitation data for the last 30 years for the region of Baixo Jaguaribe-CE, considering normal scenarios, drought and severe drought. The research was conducted in the municipality of Russas - CE, in an area adjacent to the CAGECE stabilization pond. The trial was installed in a randomized block design, with the treatments arranged in sub-divided plots, with four replications. The results show impacts of water scenarios and supplementation on most growth variables of cotton plants. Supplementary irrigation with wastewater increases the production of biomass and the vigor of cotton plants during the initial stage of development, regardless of the presence or absence of NPK fertilization. These effects were significant, especially in drought and severe drought scenarios.   Keywords: Gossypium hirsutum L, wastewater, irrigation.

scholarly journals Attack of Potyphagotarsonemus tatus on cotton treated with growth retardants

1981 ◽  
Vol 38 (1) ◽  
pp. 121-126
Author(s):  
Luiz Mauro Barbosa ◽  
Paulo R.C. Castro
Keyword(s):  
Gossypium Hirsutum ◽  
Effective Control ◽  
Trimethylammonium Chloride ◽  
Growth Retardants ◽  
Gossypium Hirsutum L ◽  
Cotton Plants ◽  
Broad Mite

The effects of growth retardants on infestation by Potyphagotarsonemus tatus (broad mite) on cotton (Gossypium hirsutum L. cv. IAC-17) plants was studied. Cotton plants were sprayed with (2-ch1oroethy1) trimethylammonium chloride (CCC) 250, 350 and 450 ppm, and with 1,1-dimethyl-piperidinium chloride (Pix) at concentrations of 84, 167 and 250 ppm. Growth retardants did not give effective control of Potyphagotarsone mus tatus but application of Pix 167 ppm showed a tendency to reduce mite attack.

Potential Impacts of Translocation of Neonicotinoid Insecticides to Cotton (Gossypium hirsutum (Malvales: Malvaceae)) Extrafloral Nectar on Parasitoids

2019 ◽  
Vol 49 (1) ◽  
pp. 159-168
Author(s):  
Asher G Jones ◽  
Kelli Hoover ◽  
Kirsten Pearsons ◽  
John F Tooker ◽  
Gary W Felton
Keyword(s):  
Gossypium Hirsutum ◽  
Food Resource ◽  
Mechanical Damage ◽  
Extrafloral Nectar ◽  
Parasitoid Wasps ◽  
Cotesia Marginiventris ◽  
Gossypium Hirsutum L ◽  
Wide Range ◽  
Cotton Plants ◽  
Route Of Exposure

Abstract Neonicotinoid seed treatments are frequently used in cotton (Gossypium hirsutum L. [Malvales: Malvaceae]) production to provide protection against early-season herbivory. However, there is little known about how these applications affect extrafloral nectar (EFN), an important food resource for arthropod natural enemies. Using enzyme-linked immunosorbent assays, we found that neonicotinoids were translocated to the EFN of clothianidin- and imidacloprid-treated, greenhouse-grown cotton plants at concentrations of 77.3 ± 17.3 and 122.6 ± 11.5 ppb, respectively. We did not find differences in the quantity of EFN produced by neonicotinoid-treated cotton plants compared to untreated controls, either constitutively or after mechanical damage. Metabolomic analysis of sugars and amino acids from treated and untreated plants did not detect differences in overall composition of EFN. In bioassays, female Cotesia marginiventris (Cresson) (Hymenoptera: Braconidae) parasitoid wasps that fed on EFN from untreated, clothianidin-treated, or imidacloprid-treated plants demonstrated no difference in mortality or parasitization success. We also conducted acute toxicity assays for C. marginiventris fed on honey spiked with clothianidin and imidacloprid and established LC50 values for male and female wasps. Although LC50 values were substantially higher than neonicotinoid concentrations detected in EFN, caution should be used when translating these results to the field where other stressors could alter the effects of neonicotinoids. Moreover, there are a wide range of possible sublethal impacts of neonicotinoids, none of which were explored here. Our results suggest that EFN is a potential route of exposure of neonicotinoids to beneficial insects and that further field-based studies are warranted.

Effects of fusicoccin on intact cotton plants (Gossypium hirsutum L.)

1996 ◽  
Vol 15 (3) ◽  
pp. 129-131
Author(s):  
U. K. Nadjimov ◽  
M. S. Mirakhmedov ◽  
B. U. Nasirullaev ◽  
G. N. Fatkhullaeva ◽  
I. M. Scott
Keyword(s):  
Gossypium Hirsutum ◽  
Gossypium Hirsutum L ◽  
Cotton Plants

scholarly journals Sub-Lethal Effects of Lecanicillium lecanii (Zimmermann)-Derived Partially Purified Protein and Its Potential Implication in Cotton (Gossypium hirsutum L.) Defense against Bemisia tabaci Gennadius (Aleyrodidae: Hemiptera)

Agriculture ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 778
Author(s):  
Yusuf Ali Abdulle ◽  
Talha Nazir ◽  
Samy Sayed ◽  
Samy F. Mahmoud ◽  
Muhammad Zeeshan Majeed ◽  
...  
Keyword(s):  
Gossypium Hirsutum ◽  
Bemisia Tabaci ◽  
Expression Profiles ◽  
Control Technique ◽  
Systemic Resistance ◽  
Gossypium Hirsutum L ◽  
Potential Implication ◽  
Lecanicillium Lecanii ◽  
Fecundity Rate ◽  
Cotton Plants

Whiteflies, Bemisia tabaci Gennadius (Aleyrodidae: Hemiptera), are a polyphagous economically destructive pest of several solanaceous crops around the world. Many secondary metabolites are synthesized by different biotrophic and necrotrophic fungi which are capable of inducing systemic resistance in plants against various phytophagous pests. The present laboratory work demonstrated the anti-insect impact of a protein extracted and purified partially from an entomopathogenic fungus (EPF) Lecanicillium lecanii (Zimmermann) against B. tabaci. Three different concentrations (i.e., 7.43, 11.15, and 22.31 μg mL−1) of this protein were bioassayed to assess its effect on the fecundity rate of B. tabaci on cotton (Gossypium hirsutum L.) plants. Furthermore, the possible implication of this fungal protein in defense pathways of cotton plants was evaluated by determining the expression profiles of salicylic acid (SA) and jasmonic acid (JA) pathways related to major genes through reverse transcription qPCR (RT-qPCR). According to the results, all protein concentrations exerted a significant (F3, 252 = 62.51; p ≤ 0.001) and negative impact on the fecundity rate of B. tabaci females. At the highest protein concentration (22.31 μg mL−1), the minimum rate of fecundity (i.e., 2.46 eggs female−1day−1) of B. tabaci was noted on the seventh day, whereas fecundity rates for the other two protein concentrations (i.e., 11.15 and 7.43 μg mL−1) were, respectively, 3.06 and 3.90 eggs day−1 female−1. The maximum rate of fecundity (6.01 eggs female−1day−1) was recorded in untreated (control) treatments. In addition, the foliar application of L. lecanii derived protein significantly upregulated all SA linked genes (OPR3, PPO1 and COI1) and slightly triggered up the JA linked genes (LOX1, UBQ7 and AOS) in the cotton plants. These findings revealed that this L. lecanii extracted partially purified protein triggered systemic resistance against B. tabaci in the cotton plants, proposing its putative effectiveness as an innovative biological control technique against B. tabaci and other phloem-feeding hemipteran pests. Nevertheless, further investigations such as purification and molecular and functional characterization of this L. lecanii-derived partially purified protein are required.

scholarly journals Impact of waterlogging on the nutrition of cotton (Gossypium hirsutum L.) produced in sodic soils

2013 ◽  
Vol 64 (8) ◽  
pp. 816 ◽  
Author(s):  
K. Dodd ◽  
C. N. Guppy ◽  
P. V. Lockwood ◽  
I. J. Rochester
Keyword(s):  
Gossypium Hirsutum ◽  
Soil Solution ◽  
Root Function ◽  
Solution Chemistry ◽  
Root Activity ◽  
Soil Solution Chemistry ◽  
Sodic Soils ◽  
Gossypium Hirsutum L ◽  
Tissue Concentrations ◽  
Cotton Plants

Sodicity in Vertosols used for agricultural production can adversely affect the growth and nutrition of cotton (Gossypium hirsutum L.) plants. Cotton produced in sodic soils has reduced dry matter and lint yield and can develop toxic plant tissue concentrations of sodium (Na) but limited tissue concentrations of phosphorus (P,) potassium (K), and micronutrients. Crops produced on sodic soils frequently suffer from aeration stress after an irrigation or rainfall event, and it was hypothesised that the adverse physical and/or chemical conditions of sodic soils may exacerbate the effects of waterlogging. We measured the impacts of sodicity on the growth, nutrition, and root recovery time of cotton during and after waterlogging in two experiments. In the first, cotton plants were subjected to a 7-day period of inundation in Grey Vertosols with a range of exchangeable sodium percentage (ESP) values from 2 to 25%; 32P was placed in the pots and its accumulation in the plant was used to indicate root activity and recovery after the waterlogging event. In a second experiment, agar was dissolved in nutrient solutions with a range of Na concentrations (9, 30, and 52 mm) matching soil solution Na concentrations in sodic soils, in order to simulate a waterlogging event. Following the waterlogging event, the solutions were labelled with 32P, in order to determine the effect of sodic soil solution chemistry on the rate of recovery of cotton root function after the event. Plant nutrient analysis was used to determine the effects of sodicity and waterlogging on cotton nutrition. In both experiments, waterlogging reduced root activity and reduced the uptake and transport of labelled P by the cotton plants, decreased plant P and K concentrations, and increased the plant Na concentrations. Sodicity exacerbated the effects of waterlogging on root function and cotton nutrition in the soil experiment but not in the nutrient solution experiment, suggesting that any contribution of waterlogging to the patterns of nutrient accumulation in cotton crops produced in sodic fields occurs due to soil physical factors rather than soil solution chemistry.

Effects of Salt Treatments of Cotton Plants ( Gossypium hirsutum L.) on Leaf Mesophyll Cell Microstructure

1972 ◽  
Vol 64 (2) ◽  
pp. 133-136 ◽  
Author(s):  
H. W. Gausman ◽  
P. S. Baur ◽  
M. P. Porterfield ◽  
R. Cardenas
Keyword(s):  
Gossypium Hirsutum ◽  
Mesophyll Cell ◽  
Gossypium Hirsutum L ◽  
Leaf Mesophyll ◽  
Cotton Plants ◽  
Leaf Mesophyll Cell
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