CATION CONCENTRATIONS OF PLANT TISSUES OF FRUIT-VEGETABLE CROPS AS AFFECTED BY THE EC OF THE EXTERNAL NUTRIENT SOLUTION AND BY HUMIDITY

2005 ◽  
pp. 377-386 ◽  
Author(s):  
C. Sonneveld ◽  
G.W.H. Welles
Keyword(s):  
Nutrient Solution ◽  
Plant Tissues ◽  
Vegetable Crops ◽  
External Nutrient

Absorption and Translocation of Buthidazole

Weed Science ◽  
1980 ◽  
Vol 28 (3) ◽  
pp. 352-357 ◽  
Author(s):  
Lloyd C. Haderlie
Keyword(s):  
Nutrient Solution ◽  
Growth Stage ◽  
Dry Weight ◽  
Abutilon Theophrasti ◽  
Plant Tissues ◽  
Steady State Condition ◽  
Foliar Absorption ◽  
Rate Of Absorption ◽  
Glycine Max L ◽  
Soybean Leaves

Absorption and translocation of buthidazole [3-[5-(1,1-dimethylethyl)-1,3,4-thiadiazol-2-yl]-4-hydroxy-1-methyl-2-imidazolidinone] was determined in several plant tissues. Buthidazole caused slight effects on seed germination. Germination of soybean (Glycine max L.Merr. ‘Williams’) seeds was inhibited up to 15% and velvetleaf (Abutilon theophrastiMedic.) was stimulated up to 13%. Buthidazole was absorbed by germinating soybeans, velvetleaf, and corn (Zea maysL.) with rate of absorption increasing when roots were capable of absorption. Buthidazole concentrations of 0.5 μM or greater inhibited growth of soybean in the early second-trifoliolate growth stage when supplied to the roots in nutrient solution. Within 96 h, 29% of the buthidazole available to soybeans was absorbed from nutrient solution and 89% of that absorbed was found in the shoots. The expanded leaves of soybean accumulated the majority of the radioactivity. Radioactivity in roots of soybean approached a steady state condition within 96 h, whereas14C continued to increase in shoots. Foliar absorption of buthidazole in soybean greatly increased when any one of several surfactants were used. Soybean dry weight reduction nearly doubled by adding surfactants. Over 60% of the14C-buthidazole applied to soybean leaves was absorbed within 1.5 h, and increased to 73% by 96 h when the nonionic surfactant, AL-411-F3[Phytobland Spray Oil (83%) plus ATPLUS 300F (17%)] was used compared to only 7% in 96 h without the surfactant. There was little or no movement of buthidazole from the treated leaves. Translocation was typical of apoplastic movement.

scholarly journals Hydroponic cultivation of Oncidium baueri

2017 ◽  
Vol 38 (4Supl1) ◽  
pp. 2823
Author(s):  
Daniele Brandstetter Rodrigues ◽  
Adriane Marinho de Assis ◽  
Ricardo Tadeu Faria ◽  
Marcia Wullf Schuch ◽  
Roberta Marins Nogueira Peil
Keyword(s):  
Nutrient Solution ◽  
Dry Mass ◽  
Vegetable Crops ◽  
Cut Flowers ◽  
Shoot Height ◽  
Cultivation System ◽  
Hydroponic System ◽  
Nutrient Film Technique ◽  
Hydroponic Cultivation ◽  
Bare Root

In Brazil, orchid cultivation has been increasing steadily over the last few years and contributing significantly to the economy. It has been reported that several vegetable crops and ornamentals have been successfully grown by soilless cultivation. The orchid Oncidium baueri Lindl. is grown on pot substrates. Nevertheless, hydroponics is an excellent alternative, especially for the production of cut flowers and bare root plants. The objective of this study was to evaluate the development of Oncidium baueri on two soilless systems: (a) pots containing Amafibra® coconut fiber, carbonized rice husk, and pine bark (1:1:1) irrigated with nutrient solution every 15 d; and (b) a nutrient film technique (NFT) hydroponic system irrigated with nutrient solution daily. Shoot height, pseudobulb diameter, and number of sprouts were evaluated monthly. The number of flowering plants, number of flowers, dry mass of shoots, and dry mass of roots were evaluated 11 months after onset of experiment. The pot cultivation system yielded more flowers and higher values for all vegetative parameters than the NFT hydroponic system.

scholarly journals Selection of bean lineages regarding the use and response to phosphorus available in nutrient solution

2020 ◽  
Vol 9 (11) ◽  
pp. e3999118850
Author(s):  
Ritieli Baptista Mambrin ◽  
Darlene Sausen ◽  
Diogo da Silva Moura ◽  
Ivan Ricardo Carvalho ◽  
Vinícius Jardel Szareski ◽  
...  
Keyword(s):  
Genetic Variability ◽  
Grain Yield ◽  
Nutrient Solution ◽  
Dry Matter ◽  
Dry Mass ◽  
Phosphorus Concentration ◽  
Plant Tissues ◽  
Growing Seasons ◽  
Phosphorus Accumulation ◽  
Santa Maria

The objectives of this work were to evaluate the genetic variability of bean lineages in relation to phosphorus accumulation in plant tissues and yield, in addition to identifying efficient bean lineages in the use of phosphorus and responsive to the application of phosphorus in the crop environment. Work was carried out at Plant Science Department of the Federal University of Santa Maria. Concentrations of phosphorus in the nutrient solution between 1.33 and 1.84 mmol L-1 provide higher dry mass of pods, grains, number of grains and grain yield for the cultivars Pérola and IPR88 Uirapurú in the growing seasons autumn-winter and spring-summer. Concentrations between 1.37 and 1.96 mmol L-1 have the highest values of phosphorus in plant tissues, grain yield and phytic acid. Characteristics dry matter of leaves, stem and pods in pod filling, dry matter of grains on maturation, number of grains, number of pods and phosphorus concentration in plant tissues at the pod filling stage are promising because it allows for indirect selection. The nutritional value of leaves in young plants, for phosphorus, equivalent to that of grains. There is genetic variability among the bean lineages studied, for the production of dry mass, yield and accumulation of phosphorus in the tissues. Lineage L 2527 showed to be efficient and responsive to the use of phosphorus for the shoot of the plant. Lineage L 2225 showed to be efficient in the use of phosphorus in shoot, grains and grain production, besides maintaining this characteristic in the two growing seasons. 

scholarly journals Effects of NaCl on Hydroponic Cultivation of Reichardia picroides (L.) Roth

Agronomy ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 2352
Author(s):  
Rita Maggini ◽  
Stefano Benvenuti ◽  
Federico Leoni ◽  
Luca Incrocci ◽  
Alberto Pardossi
Keyword(s):  
Nutrient Solution ◽  
Bioactive Molecules ◽  
Vegetable Crops ◽  
Market Demand ◽  
Edible Plant ◽  
Growing Period ◽  
Edible Species ◽  
Hydroponic Cultivation ◽  
Floating System

Wild edible plant species are often more tolerant to salinity than many crop plants. Considering the salinization of irrigation water that is progressively affecting the Mediterranean region and the market demand for new plant foods, the cultivation of wild edible species could represent a valid alternative to conventional vegetable crops. In this study, Reichardia picroides (L.) Roth, a widespread spontaneous herb of ethnobotanical tradition, was grown for four or six weeks under a greenhouse in a floating system for the production of baby leaves. In order to improve the nutraceutical quality of the tissues, the plants were exposed to the following NaCl concentrations in the nutrient solution: 1.7 (control), 25, 50, and 100 mM. The results showed that a 4-week growing period in a floating system with 50 mM NaCl in the nutrient solution increased the content of bioactive molecules without affecting the fresh yield. After six weeks of cultivation, despite a decrease in biomass production as compared with the control, the leaves of salt-treated plants contained higher levels of bioactive molecules along with lower amounts of nitrate ion.

scholarly journals Hydroponic cultivation of Oncidium baueri

2017 ◽  
Vol 38 (4Supl1) ◽  
pp. 2823
Author(s):  
Daniele Brandstetter Rodrigues ◽  
Adriane Marinho de Assis ◽  
Ricardo Tadeu Faria ◽  
Marcia Wullf Schuch ◽  
Roberta Marins Nogueira Peil
Keyword(s):  
Nutrient Solution ◽  
Dry Mass ◽  
Vegetable Crops ◽  
Cut Flowers ◽  
Shoot Height ◽  
Cultivation System ◽  
Hydroponic System ◽  
Nutrient Film Technique ◽  
Hydroponic Cultivation ◽  
Bare Root

In Brazil, orchid cultivation has been increasing steadily over the last few years and contributing significantly to the economy. It has been reported that several vegetable crops and ornamentals have been successfully grown by soilless cultivation. The orchid Oncidium baueri Lindl. is grown on pot substrates. Nevertheless, hydroponics is an excellent alternative, especially for the production of cut flowers and bare root plants. The objective of this study was to evaluate the development of Oncidium baueri on two soilless systems: (a) pots containing Amafibra® coconut fiber, carbonized rice husk, and pine bark (1:1:1) irrigated with nutrient solution every 15 d; and (b) a nutrient film technique (NFT) hydroponic system irrigated with nutrient solution daily. Shoot height, pseudobulb diameter, and number of sprouts were evaluated monthly. The number of flowering plants, number of flowers, dry mass of shoots, and dry mass of roots were evaluated 11 months after onset of experiment. The pot cultivation system yielded more flowers and higher values for all vegetative parameters than the NFT hydroponic system.

scholarly journals Growth Analysis and Nutrient Solution Management of a Soil-Less Tomato Crop in a Mediterranean Environment

Data ◽  
2019 ◽  
Vol 4 (1) ◽  
pp. 38
Author(s):  
Angelo Signore ◽  
Francesco Serio ◽  
Pietro Santamaria
Keyword(s):  
Growth Rate ◽  
Nutrient Solution ◽  
Tomato Plant ◽  
Dry Matter ◽  
Growth Analysis ◽  
Nutrient Concentration ◽  
Plant Tissues ◽  
Mediterranean Environment ◽  
Tomato Crop ◽  
Northern European

The data contained in this article are strictly related to our previous article titled “A Targeted Management of the Nutrient Solution in a Soilless Tomato Crop According to Plant Needs” (Signore, A. et al. 2016). The detailed datasets regards the amount of dry matter (Table 1), the nutrient solution consumption (Table 2) and the mineral composition of plant tissues (Tables 3–7) in a soil-less tomato crop. The information contained in this article are necessary since, unlike the northern European countries, such data are generally missing for the crops in the Mediterranean environment. By correlating the parameters reported above, we were able to provide a more precise management of the nutrient solution, by providing the correct nutrient concentration into the nutrient solution in function of (i) the volume of water absorbed, (ii) the growth rate and (iii) the nutrient concentration in tomato plant. Finally, the more precise management of the nutrient solution allowed discharging a lesser amount of water and nutrients into the environment, improving the sustainability of the crop.

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