نتایج جستجو برای: spinach yield

تعداد نتایج: 198735  

رحیمی, طیبه, رونقی, عبدالمجید,

Cadmium (Cd) is a heavy metal which is toxic to human, plants and all other organisms. Among heavy metals, Cd mobility and phytoavailability in soils is of great concern due to the fact that even at low concentrations may cause toxicity. Thus its behavior in soils needs further investigation. A greenhouse experiment was carried out to examine the effect of Cd and two zinc (Zn) sources (sulfate ...

Journal: :Journal of Plant Nutrition and Soil Science 2022

Background Spinach is a nitrogen (N) demanding crop with weekly N uptake of up to 60 kg ha–1. Consequently, high supply required, which can temporarily lead quantities nitrate (NO3–) being at risk leaching. Aims The objective this study was develop fertilization approach reduce the NO3– leaching in field-grown spinach production without adversely affecting yield and quality an early late harves...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2015
Mingxu You Jacob L Litke Samie R Jaffrey

Riboswitches are natural ligand-sensing RNAs typically that are found in the 5' UTRs of mRNA. Numerous classes of riboswitches have been discovered, enabling mRNA to be regulated by diverse and physiologically important cellular metabolites and small molecules. Here we describe Spinach riboswitches, a new class of genetically encoded metabolite sensor derived from naturally occurring riboswitch...

2010
Diane Benford Alan Raymond Boobis Sandra Ceccatelli Jean-Pierre Cravedi Alessandro Di Domenico Daniel Doerge Eugenia Dogliotti Lutz Edler Peter Farmer Metka Filipič Johanna Fink Peter Fürst Thierry Guérin Helle Katrine Knutsen Miroslav Machala Antonio Mutti Josef Rudolf Schlatter

Nitrate is a naturally occurring compound present in vegetables, the consumption of which can contribute significantly to nitrate dietary exposure. The European Food Safety Authority Panel on Contaminants in the Food Chain (CONTAM Panel) issued an opinion on ‘Nitrate in vegetables’ in 2008. The European Commission subsequently requested more information on potential acute effects of nitrate exp...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی 1389

با پیشرفت تکنولوژی و کاهش ابعاد ترانزیستور، تلرانس پارامترهای ساخت مدارات الکترونیک افزایش یافته و باعث کاهش ضریب yield می شود. در طراحی مدارات الکترونیک، طراح عموما مقادیر نامی را برای دست یابی به عملکرد مطلوب استخراج می کند، در حالی که، در عمل یک ناحیه تلرانس، به دلیل فرآیند های تصادفی حین فرآیند های ساخت، وجود دارد که بایستی در طراحی لحاظ گردد. الگوریتم های بهینه سازی طراحی تلرانس، ناحیه تلر...

Journal: :Jurnal Online Pertanian Tropik 2021

In the period of last ten years increased market demand for spinach makes outlook very promising so it is less optimal growth caused by soil fertility low that provision organic material can improve through improvement chemical to support red spinach. This study aims determine dosage rice husk ash and dose manure as well interaction yield this research, land villa, Pasir mas which failed compas...

Journal: :Molecules 2015
Ammar Altemimi David A Lightfoot Mary Kinsel Dennis G Watson

The extraction of lutein and β-carotene from spinach (Spinacia oleracea L.) leaves is important to the dietary supplement industry. A Box-Behnken design and response surface methodology (RSM) were used to investigate the effect of process variables on the ultrasound-assisted extraction (UAE) of lutein and β-carotene from spinach. Three independent variables, extraction temperature (°C), extract...

Journal: :Journal of experimental botany 2005
Jian Li Yang Shao Jian Zheng Yun Feng He Hideaki Matsumoto

Spinach is a vegetable with a high oxalate concentration in its tissues. Oxalate efflux from spinach (Spinacia oleracea L. cv. Quanneng) roots was rapidly stimulated (within 30 min) by aluminium (Al) treatment. The efflux was constant within 6 h, but increased with increasing Al concentration. The efflux was confined to the root tip (0-5 mm), which showed a 5-fold greater efflux than the root z...

2016
Chuck Chuan Ng Md Motior Rahman Amru Nasrulhaq Boyce Mhd Radzi Abas

The growth response, metal tolerance and phytoaccumulation properties of water spinach (Ipomoea aquatica) and okra (Abelmoschus esculentus) were assessed under different contaminated spiked metals: control, 50 mg Pb/kg soil, 50 mg Zn/kg soil and 50 mg Cu/kg soil. The availability of Pb, Zn and Cu metals in both soil and plants were detected using flame atomic absorption spectrometry. The concen...

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