Does saline water consumption affect feeding and fuel deposition rate of a staging, long-distance migrating passerine?

2015 ◽  
Vol 47 (3) ◽  
pp. 378-385 ◽  
Author(s):  
Ron Efrat ◽  
Gavriella Shani ◽  
Roee Gutman ◽  
Nir Sapir
Keyword(s):  
Deposition Rate ◽  
Water Consumption ◽  
Saline Water ◽  
Long Distance ◽  
Fuel Deposition

scholarly journals Why fly the extra mile? Latitudinal trend in migratory fuel deposition rate as driver of trans‐equatorial long‐distance migration

2016 ◽  
Vol 6 (18) ◽  
pp. 6616-6624 ◽  
Author(s):  
Yaara Aharon‐Rotman ◽  
Ken Gosbell ◽  
Clive Minton ◽  
Marcel Klaassen
Keyword(s):  
Deposition Rate ◽  
Long Distance ◽  
Latitudinal Trend ◽  
Fuel Deposition

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.

Buoyancy, salt tolerance and germination of coastal seeds: implications for oceanic hydrochorous dispersal

2010 ◽  
Vol 37 (12) ◽  
pp. 1175 ◽  
Author(s):  
Lydia K. Guja ◽  
David J. Merritt ◽  
Kingsley W. Dixon
Keyword(s):  
Salt Tolerance ◽  
Saline Water ◽  
Long Distance Dispersal ◽  
Single Factor ◽  
Long Distance ◽  
Plant Dispersal ◽  
Salt Response ◽  
Coastal Plant ◽  
Dispersal Unit ◽  
Adverse Environmental Conditions

Many coastal plant species are widely distributed, including several pan-global species. Long-distance dispersal and physiological resilience of diaspores (i.e. the plant dispersal unit encompassing the seed and any additional surrounding or attached tissues at dispersal) to adverse environmental conditions are possible contributors to the presence of species over hundreds of kilometres of coastline. Dispersal by water (hydrochory) may occur in coastal habitats. This study investigated diaspore traits considered important for oceanic hydrochorous dispersal, including morphology, buoyancy and survival in seawater, and germination under saline conditions for 13 species common to Holocene dune communities in Western Australia. Of the diaspores of 13 species dominant in this coastal community, 11 floated in seawater, with 7 having >50% of diaspores buoyant after 14 days and some diaspores remaining buoyant for 70 days. Of the 10 species that germinated, diaspores of 9 survived exposure to seawater for up to 70 days. Germination of physiologically dormant seeds contained within indehiscent woody fruits and physically dormant seeds was least affected by time in seawater. The effects of varying concentrations of NaCl (0–500 mM) on germination differed between species, but most were able to recover and germinate when transferred to non-saline water. Three different patterns of salt response were observed. It appears likely a combination of diaspore traits, rather than a single factor, facilitate oceanic hydrochorous dispersal.

Fuel loss and flexible fuel deposition rates in a long-distance migrant

2014 ◽  
Vol 68 (9) ◽  
pp. 1465-1471 ◽  
Author(s):  
Cas Eikenaar ◽  
Thomas Klinner ◽  
Tessina de Lille ◽  
Franz Bairlein ◽  
Heiko Schmaljohann
Keyword(s):  
Long Distance ◽  
Deposition Rates ◽  
Fuel Loss ◽  
Fuel Deposition

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.

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