scholarly journals Effect of copper deficiency and of water stress on the microstructure of tomato leaf surface

2013 ◽  
Vol 51 (1-2) ◽  
pp. 119-125 ◽  
Author(s):  
Barbara Dyki ◽  
Jan Borowski ◽  
Waldemar Kowalczyk
Keyword(s):  
Water Stress ◽  
Copper Deficiency ◽  
Leaf Surface ◽  
Tomato Leaf ◽  
Stress Conditions ◽  
Water Deficiency ◽  
Tomato Plants ◽  
Number Of Leaves ◽  
Effect Of Copper

The reaction of tomato plants cv. Tukan F<sub>1</sub> to copper deficiency and to water stress was compared. Plants grown in copper deficiency and in conditions of water stress were significantly smaller than controls. They had also lower turgor. The epidermis cells of the upper side leaf in the plants growing in copper deficiency or water stress conditions were smaller than in control plants. However the stomata and trichomes number of leaves plants with copper or water deficiency grown were bigger in comparision with control. The pores of stomata were always larger in leaves of control plants than in other objects.

scholarly journals ↵​Impact of A Selected Mycorrhizal Complex and A Rhizobacterial Species on Tomato Plants’ Growth under Water Stress Conditions

2021 ◽  
Author(s):  
Slimani Afafe ◽  
Harkousse Oumaima ◽  
Mazri Mouaad Amine ◽  
Zouahri Abdelmajid ◽  
Ouahmane Lahcen ◽  
...  
Keyword(s):  
Water Stress ◽  
Mycorrhizal Fungi ◽  
Growth Parameters ◽  
Water Status ◽  
Field Capacity ◽  
Water Levels ◽  
Stress Conditions ◽  
Bacillus Sp ◽  
Tomato Plants ◽  
The Impact

Background: Plant strategies for adapting to drought could be improved by associations between plant roots and soil microorganisms, including arbuscular mycorrhizal fungi (AMF) and plant growth promoting rhizobacteria (PGPR). In this study, the impact of a selected AMF complex and a selected PGPR species on the growth of tomato (Lycopersicum esculentum Mill.) under induced water stress was evaluated. Methods: Three different inoculation treatments were applied to tomato seedlings (a complex of AMF composed mainly of Glomus genus a Bacillus sp. PGPR treatment and a combination of both) and three different water levels (75%, 50% and 25% of field capacity). Result: A significant damaging impact of drought on tomato growth parameters and root mycorrhizal colonization, although the presence of microbes stimulated tomato plants growth and decreased the impact ofdrought stress. Indeed inoculated plants presented greater heights, fresh and dry weights, leaves number and area; greater water status; and greater proteins, sugars and chlorophylls contents either with the AMF complex or the Bacillus sp. in normal and drought stress conditions compared to the non-inoculated plants. However dual inoculation recorded the highest values under all water levels treatments.

scholarly journals Agronomic performance of sugarcane families in response to water stress

Bragantia ◽  
2008 ◽  
Vol 67 (3) ◽  
pp. 655-661 ◽  
Author(s):  
Marcelo de Almeida Silva ◽  
Rogério Augusto Bremm Soares ◽  
Marcos Guimarães de Andrade Landell ◽  
Mário Pércio Campana
Keyword(s):  
Water Stress ◽  
Water Deficit ◽  
Growth Phase ◽  
Stress Conditions ◽  
Initial Growth ◽  
Agronomic Performance ◽  
Water Deficiency ◽  
Ratoon Crop ◽  
Stalk Diameter ◽  
Major Factors

Water deficit is one of the major factors limiting the production of sugarcane, especially in areas where there is a prolonged period of water deficiency, such as the West Central Brazilian region. One way to overcome this problem is to cultivate resistant or tolerant varieties. An experiment was set up at the Jalles Machado Sugar Mill, located near Goianésia, Goiás State, Brazil, to evaluate agronomic performance of several sugarcane families. A comparative analysis was carried out among the families under two irrigation regimes, one under regular environmental conditions and another under monthly irrigations during the period of water deficiency. Evaluated families consisted of 25 progenies planted in a factorial design with three replications with 20 plants each. The first ratoon crop was evaluated for four yield components, stalk height, stalk diameter, stalk number and Brix. By analysis of variance, stalk number and stalk height were influenced by water stress conditions during the initial growth phase, and for stalk diameter and Brix, water regime had no effect on the average expression of the characters during the growth phase. The method of classification in four categories proved to be adequate. Some families had high values for stalk diameter, stalk number and stalk height under water stress conditions. This study showed that it is possible to select sugarcane families under water deficit conditions associated with higher stalk diameter, stalk number and stalk height.

scholarly journals Acoustic Emissions in Tomato Plants under Water Stress Conditions

2002 ◽  
Vol 36 (2) ◽  
pp. 103-109 ◽  
Author(s):  
Guo Yu QIU ◽  
Limi OKUSHIMA ◽  
Sadanori SASE ◽  
In-Bok LEE
Keyword(s):  
Water Stress ◽  
Acoustic Emissions ◽  
Stress Conditions ◽  
Tomato Plants

scholarly journals EFEITO DA ADUBAÇÃO SILICATADA NO CULTIVO DO TOMATEIRO SOB ESTRESSE HÍDRICO

Irriga ◽  
2018 ◽  
Vol 1 (2) ◽  
pp. 29-33
Author(s):  
ALINE MARA CHAVES NUNES ◽  
Ana Janaina Oliveira Rodrigues ◽  
MARCIO PORFIRIO DA SILVA ◽  
GÉSSICA THAÍS DOS SANTOS MOURA ◽  
KELINE SOUSA ALBUQUERQUE UCHÔA
Keyword(s):  
Water Stress ◽  
Foliar Application ◽  
Potassium Silicate ◽  
Lycopersicum Esculentum ◽  
Tomato Plants ◽  
Randomized Design ◽  
Number Of Leaves ◽  
Effects Of Stress ◽  
E Mail ◽  
Positive Results

EFEITO DA ADUBAÇÃO SILICATADA NO CULTIVO DO TOMATEIRO SOB ESTRESSE HÍDRICO     ALINE MARA CHAVES NUNES¹; ANA JANAINA OLIVEIRA RODRIGUES2; MARCIO PORFIRIO DA SILVA2; GÉSSICA THAÍS DOS SANTOS MOURA2 E KELINE SOUSA ALBUQUERQUE UCHÔA3   1 Engenheiro Agrônoma, Instituto Federal do Ceará – IFCE – campus Limoeiro do Norte, Rua Estevão Remígio, nº 1145,  bairro Centro. CEP: 62930-000. Limoeiro do Norte-CE. E-mail: [email protected]  2 Mestrando, Departamento de Engenharia  Agrícola – Universidade Federal do Ceará – UFC, Av. Mister Hull, s/n - Campus do Pici - CEP 60.021-970 - Fortaleza – CE. E-mail: [email protected],[email protected],[email protected] 3 Prof. Dr., Bacharelado em agronomia – IFCE – campus Limoeiro do Norte, e-mail: [email protected]     1 RESUMO   O uso de silício vem apresentando resultados promissores na agricultura, entretanto, a sua eficácia em minimizar os efeitos do estresse carecem de estudos. Este trabalho teve por objetivo avaliar o efeito da adubação silicatada em híbrido de Tomate cv. Dominador, submetidas a estresse hídrico. O delineamento experimental foi o inteiramente casualizado, com uma testemunha e cinco concentrações de silicato de potássio (0 mL.L-1; 25 mL.L-1; 50 mL.L-1; 75 mL.L-1; e 100 mL.L-1 de K2SiO3) via aplicação foliar, e 10 repetições, as plantas eram irrigadas com base em 60 % da ETo. Os resultados obtidos foram submetidos à análise de variância (F ≤ 0,05), e as médias submetidas ao teste de Tukey (P ≤ 0,05). As variáveis analisadas foram: alturas de plantas (AP); diâmetro do caule (DC); número de folhas (NF) e teor de clorofila (TC). As variáveis DC, NF e TC não divergiram entre os tratamentos. A aplicação de Silicato de Potássio em plantas de tomate apresentou resultado positivo para reduzir o efeito do estresse hídrico no crescimento das plantas. Assim pode-se admitir que este elemento atua de forma benéfica para o desenvolvimento da planta, minimizando os efeitos do estresse. Palavras-chave: irrigação, Lycopersicum esculentum, silício.     M. C. NUNES; A. J. O. RODRIGUES; M. P. SILVA; G. T. S. MOURA E S. A. UCHÔA EFFECT OF SILICON FERTILIZING IN TOMATO CULTIVATION UNDER WATER STRESS     2 ABSTRACT   The use of silicon has shown promising results in agriculture, however, its effectiveness in minimizing the effects of stress needs to be studied. The objective of this work was to evaluate the effect of silicate fertilization on tomato hybrid cv. Dominator, submitted to water stress. The experimental design was a completely randomized design, with one control and five concentrations of potassium silicate (0 mL.L-1, 25 mL.L-1, 50 mL.L-1, 75 mL.L-1, and 100 mL.L-1 of K2SiO3) via foliar application, and 10 replicates, the plants were irrigated based on 60% of Eto. The results were submitted to analysis of variance (F ≤ 0.05), and the means submitted to the Tukey test (P ≤ 0.05). The analyzed variables were: plant heights (AP); stem diameter (DC); number of leaves (NF) and chlorophyll content (TC). The variables DC, NF and TC did not diverge between treatments. The application of Potassium Silicate in tomato plants presented positive results to reduce the effect of water stress on plant growth. Thus, it can be accepted that this element acts in a beneficial way for the development of the plant and minimizing the effects of stress.   Keywords: Irrigation, Lycopersicum esculentum, silicon.

scholarly journals Biochar-Improved Growth and Physiology of Ehretia asperula under Water-Deficit Condition

2021 ◽  
Vol 11 (22) ◽  
pp. 10685
Author(s):  
Thi-Lan-Huong Hoang ◽  
Dong-Cheol Jang ◽  
Quang-Tin Nguyen ◽  
Won-Ho Na ◽  
Il-Seop Kim ◽  
...  
Keyword(s):  
Water Stress ◽  
Physiological Responses ◽  
Dry Weight ◽  
Stress Conditions ◽  
Ion Leakage ◽  
Oak Wood ◽  
Relative Water ◽  
Leaf Relative Water Content ◽  
Number Of Leaves ◽  
Wilting Point

Ehretia asperula’s physiological responses to growth performance following oak-wood biochar application under water stress conditions (WSC) and no water stress conditions (non-WSC) were investigated in a pot experiment. Biochar (WB) was incorporated into the soil at concentrations of 0, 5, 10, 15, and 20 tons ha−1 before transplanting Ehretia asperula in the pots. One month after transplanting, Ehretia asperula plants were put under water stress by withholding water for ten days. Water stress significantly decreased the growth and physiology of Ehretia asperula. Under WSC, the application of WB at the concentrations of 15 and 20 tons ha−1 to the soil increased the plant height; number of leaves; fresh and dry weight of the roots, shoots, and leaves; Fv/Fm; chlorophyll content; leaf relative water content; and soil moisture as well as decreased the relative ion leakage. The application of WB enhanced drought tolerance in Ehretia asperula plants by lowering the wilting point. The findings suggest that WB application at the concentration of 15 tons ha−1 could be recommended for ensuring the best physiological responses and highest growth of Ehretia asperula plants.

Study of the ionome and uptake fluxes in cherry tomato plants under moderate water stress conditions

2010 ◽  
Vol 335 (1-2) ◽  
pp. 339-347 ◽  
Author(s):  
Eva Sánchez-Rodríguez ◽  
Maria del Mar Rubio-Wilhelmi ◽  
Luis Miguel Cervilla ◽  
Begoña Blasco ◽  
Juan Jose Rios ◽  
...  
Keyword(s):  
Water Stress ◽  
Stress Conditions ◽  
Cherry Tomato ◽  
Tomato Plants

Phenology, growth, productivity, and profitability of mungbean as affected by potassium and organic matter under water stress vs. no water stress conditions

2021 ◽  
pp. 1-22
Author(s):  
Amanullah ◽  
Mohammad Yar ◽  
Shah Khalid ◽  
Mohamed Soliman Elshikh ◽  
Hafiz M. Akram ◽  
...  
Keyword(s):  
Organic Matter ◽  
Water Stress ◽  
Stress Conditions

A case of Menkes syndrome with pyloric stenosis: An effect of copper deficiency on NOS1?

1999 ◽  
Vol 22 (2) ◽  
pp. 197-198 ◽  
Author(s):  
S. Cunningham ◽  
P. M. Crofton ◽  
T. G. Marshall ◽  
D. R. Fitzpatrick
Keyword(s):  
Pyloric Stenosis ◽  
Copper Deficiency ◽  
Effect Of Copper
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