• Corpus ID: 106299901

The effects of Root Zone Temperature and Electrical Conductivity on the Lycopene, β-carotene, Chlorophyll Concentration and Quality of Tomato Fruit grown in Hydroponic Culture.

@inproceedings{Hmiz2017TheEO,
  title={The effects of Root Zone Temperature and Electrical Conductivity on the Lycopene, $\beta$-carotene, Chlorophyll Concentration and Quality of Tomato Fruit grown in Hydroponic Culture.},
  author={Dhulfiqar J. Hmiz and Bhram Abedi and G. Davarynejad and Ali Tehranifar},
  year={2017}
}
The effect of different levels of root zone temperature (RZT) and electrical conductivity (EC) of nutrient solution on lycopene, β-carotene, chlorophyll concentration and tomato quality (TSS, TA and TSS/TA ratio) of tomato plants grown under greenhouse conditions were determined. Tomato plants were irrigated with various EC (0, 1.5, 3 and 6 ds.m) via pumps connected to 4 sets of water tanks and RZT (20, 25 and 30 C) regulated via electrical heater in each experimental unit. All the plants were… 

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SHOWING 1-10 OF 40 REFERENCES
Effects of salinity at two ripening stages on the fruit quality of single-truss tomato grown in hydroponics
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The results suggest that the improvement in fruit quality induced by the salinity is caused by the reduction of water import into the fruit.
Effect of electrical conductivity, fruit pruning, and truss position on quality in greenhouse tomato fruit
Summary The combined effects of electrical conductivity (an EC of 2.5 dS m–1 or 8 dS m–1 in the root zone) and fruit pruning (three or six fruit per truss) on tomato fruit quality were studied in a
Effect of Root-Zone Temperature on Growth and Quality of Hydroponically Grown Red Leaf Lettuce (Lactuca sativa L. cv. Red Wave)
TLDR
Effects of root-zone temperatures on growth and components of hydroponically grown red leaf lettuce and leaves under low rootzone temperature showed hydrogen peroxide production, accompanied by lipid peroxidation, and low temperature root treatment is suggested to induce oxidative stress responses in leaves, activating antioxidative secondary metabolic pathways.
Inhibitory effects of sub-optimal root zone temperature on leaf bioactive components, photosystem II (PS II) and minerals uptake in Trichosanthes cucumerina L. Cucurbitaceae
We hypothesized that sub-optimal root zone temperature (RZT) will cause a reduction in the bioactive components contents, adversely affect PS II and hinder uptake/partitioning of mineral elements in
Use of high electrical conductivity of nutrient solution to improve the quality of salad tomatoes (Lycopersicon esculentum) grown in hydroponic culture
TLDR
Over all experiments, it was shown that salt stress could be used to achieve an increase in TSS of about 0.5 ¦Brix with little or no effect on yield, however, the EC at which this increase occurred appeared to depend on weather conditions.
Elevated Root-Zone Temperature Modulates Growth and Quality of Hydroponically Grown Carrots
Air and soil temperatures strongly influence the growth and quality of crops. However, in root vegetables, such as carrot, few experiments aimed at regulating growth and quality by manipulating
Effects of different day and night salinity levels on vegetative growth, yield and quality of tomato
TLDR
Investigation of whether salinity could be used to control vegetative growth, fruit yield and quality found differences were mainly due to differences in average fruit size, except at 9/9, where after 12 weeks of harvesting, the number of harvested fruits was decreased too.
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