scholarly journals Effects of saline water consumption on physiological responses in Nguni goats

2017 ◽  
Vol 153 ◽  
pp. 209-211 ◽  
Author(s):  
Z.M. Mdletshe ◽  
M. Chimonyo ◽  
M.C. Marufu ◽  
I.V. Nsahlai
Keyword(s):  
Water Consumption ◽  
Saline Water ◽  
Physiological Responses

scholarly journals Cultivation of CNPA G3 sesame irrigated with saline water and fertilized with nitrate-N and ammonium-N

2017 ◽  
Vol 21 (1) ◽  
pp. 14-20 ◽  
Author(s):  
Geovani S. de Lima ◽  
Adaan S. Dias ◽  
Lauriane A. dos A. Soares ◽  
Hans R. Gheyi ◽  
José P. Camara Neto ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Water Use Efficiency ◽  
Water Use ◽  
Water Consumption ◽  
Saline Water ◽  
Early Maturation ◽  
Nitrate N ◽  
Ammonium N ◽  
Use Efficiency ◽  
Delayed Flowering

ABSTRACT The study aimed to evaluate the effects of irrigation with saline water and fertilization with nitrate (NO3--N) and ammonium (NH4+-N) ratios on growth, flowering, water consumption and water use efficiency of the sesame cv. CNPA G3. The treatments were distributed in randomized blocks in a 5 x 5 factorial with three replicates, referring to five levels of electrical conductivity of the irrigation water - ECw (0.6, 1.2, 1.8, 2.4 and 3.0 dS m-1) and nitrate (NO3--N) and ammonium (NH4+-N) (200/0, 150/50, 100/100, 50/150, 0/200 mg kg-1) ratios. Irrigation with saline water above 0.6 dS m-1 inhibited the growth, delayed flowering and promoted early maturation of capsules of sesame, cv. CNPA G3. The proportion of 0/200 mg kg-1 of NO3--N/NH4+-N promoted the greatest increase relative to stem diameter and height of sesame plants. Water consumption decreases with increasing ECw and was significantly lower in plants fertilized with the proportion of 0/200 of NO3--N/NH4+-N. The interaction between ECw levels and ammonium/nitrate proportions significantly affect water use efficiency, and the highest value was obtained with ECw of 0.6 dS m-1 and fertilization with 150:50 mg kg-1 of NO3--N and NH4+-N.

scholarly journals Water relations of chives in function of salinity and circulation frequency of nutrient solutions

2019 ◽  
Vol 23 (5) ◽  
pp. 359-365 ◽  
Author(s):  
Fernando J. da Silva Júnior ◽  
José A. Santos Júnior ◽  
Manassés M. da Silva ◽  
Ênio F. de F. e Silva ◽  
Edivan R. de Souza
Keyword(s):  
Water Use Efficiency ◽  
Water Content ◽  
Water Use ◽  
Nutrient Solution ◽  
Water Consumption ◽  
Dry Matter ◽  
Saline Water ◽  
Dry Matter Partitioning ◽  
Use Efficiency ◽  
Supply Water

ABSTRACT Hydroponic cultivation using saline waters is an alternative for agricultural production, especially in the cultivation of vegetables. Therefore, the present work was conducted with the objective of evaluating the water consumption, water use efficiency and water content, as well as dry matter partitioning of chives (Allium schoenoprasum), cv. Todo Ano Evergreen – Nebuka exposed to six levels of nutrient solution salinity (1.5, 3.0, 4.5, 6.0, 7.5 and 9.0 dS m-1), applied at two circulation frequencies (twice a day at 8 and 16 h; and three times a day - at 8, 12 and 16 h). The level in the nutrient solution reservoir, which decreased according to the water consumption by plants, was replaced with the respective saline water (Experiment I) and supply water (Experiment II). Both experiments used a completely randomized design, in a 6 x 2 factorial scheme, with five replicates. It was observed that increased circulation frequency and the use of supply water in the replacement mitigated the effects of salinity on water consumption, water use efficiency and water content in the plant. However, with the increase in nutrient solution electrical conductivity, dry matter allocation in the roots increased, to the detriment of the shoots.

scholarly journals Effects of Saline Water and Two Types of Plastic Mulch on Physiology and Yield of Bell Pepper Plants

HortScience ◽  
2004 ◽  
Vol 39 (4) ◽  
pp. 852C-852
Author(s):  
Dagobiet Morales-Garcia* ◽  
Katrine A. Stewart
Keyword(s):  
Stomatal Conductance ◽  
Water Consumption ◽  
Fruit Development ◽  
Saline Water ◽  
Bare Soil ◽  
Control Treatment ◽  
Plastic Mulch ◽  
Marketable Yield ◽  
Control Value ◽  
Bell Peppers

In order to examine the effects of saline water (0.2, 1.5, 4.0, 6.5 and 9.0 dS·m-1) without or with plastic mulch (black or green infrared transmitting) on the physiology and yield of bell peppers (Capsicum annuum L. var. Red Night), plants were drip irrigated and grown in greenhouse conditions. Salinity did not significantly decrease the rate of photosynthesis until fruit set after which irrigation with 6.5 and 9.0 dS·m-1 reduced rates by 35%-38% and during fruit development by 50% compared with the control treatment. Plants receiving 4.0 dS·m-1 had significantly lower (30%) photosynthetic rates than the control during fruit development. Stomatal conductance decreased as the rate of salinity increased which in turn affected transpiration. No consistent differences in photosynthesis, stomatal conductance and transpiration rates were obtained with or without plastic mulch. The marketable yield was negatively affected as salinity increased having being reduced by 17%, 64%, 96%, and 100% for saline treatments compared with the control. The number of fruit of fruit per plant was significantly lower at rates of 4.0 dS·m-1 or higher. No significant differences were detected among plastic mulches and non-mulch condition in marketable yield and number of fruits. Water consumption decreased as salinity level increased with decreases of 11%, 20%, 38%, and 52% of the control value. Mulching the soil reduced water consumption by 30% compared with bare soil.

Performance response and carcass traits of broiler chicks which drank saline water and fed on diets supplemented with betaine

2007 ◽  
Vol 2007 ◽  
pp. 250-250
Author(s):  
Shirin Honarbakhsh ◽  
Mojtaba Zaghari ◽  
Mahmood Shivazad
Keyword(s):  
Sugar Beet ◽  
Water Consumption ◽  
Saline Water ◽  
Salt Water ◽  
Carcass Traits ◽  
Feed Additive ◽  
Broiler Chicks ◽  
Negative Effects ◽  
Broiler Performance ◽  
Animal Feedstuffs

High levels of TDS in drinking water, has negative effects on broiler performance. Consumption of saline water results in increases blood pressure. In order to expulsion salt, water consumption increases, total amount of blood K decreases and an increment occurs in litter moisture. Consequently performance decreases, anion-cation becomes imbalance and some diseases such as ascites and coccidiosis happen. Change in anion-cation balance affects a lot of physiologic and metabolic functions of body, so can reduces performance and also increases FCR. Nowadays poultry producers in regions with high levels of NaCl in water, try to solve the problem by reducing NaCl content diet, purifying water or etc. Current study examined betaine supplementation for searching another way to get rid of this problem. Betaine implicated in methionine sparing and osmotic stress protection. It can protect intracellular proteins against hyper tonicity induced denaturation. Betaine is a naturally-occurring product present in relatively large quantities in sugar beet and aquatic invertebrates, but is not present in most animal feedstuffs (Wang et al., 2004). As a by-product of sugar beet processing, betaine is commercially available as a feed additive (Eklund et al., 2005).To date, concerning to our knowledge no information has been published about the osmolytic effects of betaine on performance and carcass traits of broilers in response to saline water consumption.

1201 EFFECTS OF AD LIBITUM WATER CONSUMPTION ON PHYSIOLOGICAL RESPONSES TO EXERCISE IN THE HEAT

1994 ◽  
Vol 26 (Supplement) ◽  
pp. S214
Author(s):  
L. Ahlquist ◽  
A. Ward ◽  
Y. Wang ◽  
D. Brown ◽  
C. M. Marcsh ◽  
...  
Keyword(s):  
Water Consumption ◽  
Physiological Responses ◽  
Ad Libitum

scholarly journals Agronomic and physiological responses of tomato plants grown in different soilless systems to saline conditions

2017 ◽  
Author(s):  
Wilbert Michael Rodriguez-Ortega ◽  
Vicente Martinez ◽  
Manuel Nieves ◽  
Jose Maria Camara-Zapata ◽  
Francisco Garcia-Sanchez
Keyword(s):  
Yield Loss ◽  
Saline Water ◽  
Water Status ◽  
Physiological Responses ◽  
Quality Parameters ◽  
Gas Exchange Parameters ◽  
Marketable Yield ◽  
Tomato Production ◽  
Osmotic Effect ◽  
Nutrient Film Technique

Background. The tomato is the most important horticultural crop in the world, regarding area of cultivation and yield. The main production areas have arid and semi-arid climates, with scarce rainfall, which forces the use of saline water for irrigation - leading to a decrease in the agronomic yield of the crop. Currently, many soilless cultivation systems are considered for tomato production, although the behavior of the plants when saline water is used for irrigation is not known in detail. Methods. In this work we study the agronomic and physiological responses of the tomato variety ‘Óptima’, using different soilless crop systems (perlite substrate, hydroponics, and the nutrient film technique) and several levels of salinity in the irrigation water. The yield, quality parameters, vegetative growth, mineral composition, water relations, and gas exchange parameters were measured. Results and conclusions. Salinity caused changes in the water status of the plants, toxicity due to Cl- and Na+, and nutritional imbalances that altered the physiology of the plants, thereby reducing yield, although the fruit quality was improved. Regarding the crop system, hydroponics gave a higher marketable yield, both with and without salinity, with a consumption of nutrient solution intermediate between that of the nutrient film and perlite. Salinity reduced yield similarly in all systems. Plants cultivated with the nutrient film technique had the highest concentrations of Cl- and Na+ and the highest Na+/K+ ratio. The concentrations of Cl- and Na+ in the plants were not related directly to the yield loss. Therefore, the combined influence of the toxicity, osmotic effect, and nutritional imbalance seems to have been responsible for the yield loss.

scholarly journals Water consumption of coriander under irrigation strategy with saline water in rural Alagoas

2019 ◽  
Vol 11 (1) ◽  
pp. 70-79
Author(s):  
Julianna Catonio da SILVA ◽  
Luis Felipe Ferreira COSTA ◽  
Jerônimo dos Anjos OLIVEIRA ◽  
Anderson Victor Alves de FARIAS ◽  
Lucas Elias A`'quim Silva SANTOS ◽  
...  
Keyword(s):  
Water Consumption ◽  
Saline Water ◽  
Irrigation Strategy

A determinação do consumo hídrico do Coentro com a utilização de água salina é um fator importante com a situação encontrada no semiárido. Dessa forma, objetivou-se encontrar o consumo hídrico da cultura do coentro utilizando água salina no agreste de Alagoas. O experimento foi conduzido em casa de vegetação pertencente ao curso de Agronomia da Universidade Federal de Alagoas, Campus de Arapiraca, no período compreendido entre agosto e setembro de 2018. Foi adotado o delineamento inteiramente casualizados (DIC), com 5 tratamentos e 4 repetições, totalizando 20 parcelas experimentais. O tratamento foi constituído por 5 lâminas de irrigação (L1: 50; L2: 75; L3: 100; L4:125 e L5:150% da ETc (evapotranspiração da cultura). A parcela foi representada por um recipiente plástico com capacidade para 5,0 L. As lâminas de irrigação foram determinadas por meio do sistema SLIMCAP (sistema lisimétrico de informações para monitoramento do consumo de água pelas culturas) instalados na área experimental. As variáveis analisadas foram: Altura de Planta (AP), Número de Hastes (NH), Comprimento da Raiz (CR), Massa Fresca da Parte Aérea (MFPA), Massa Fresca da Raiz (MFR), Massa Seca da Parte Aérea (MSPA), Massa Seca da Raiz (MSR) e Massa Seca Total (MST). O maior valor encontrado para todas as variáveis analisadas foi para lâminas de irrigação superior a 100% da ETc. Assim, mesmo utilizando água salina, a cultura do coentro é capaz de produzir.

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