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Behavior of cinosulfuron in paddy surface waters, sediments, and ground water.

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Cinosulfuron (3-(4,6-dimethoxy-1,3,5-triazin-2-yl)-1-[2-(2-methoxyethoxy)-phenylsulfonyl]-urea) is a sulfonylurea herbicide used to control a wide range of broadleaf weeds in rice (Oryza sativa L.). A 2-yr field study was conducted in northwest Italy to determine the effect of cinosulfuron on

Characteristics of photosynthesis and functions of the water-water cycle in rice (Oryza sativa) leaves in response to potassium deficiency.

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The mechanisms of photoprotection of photosynthesis and dissipation of excitation energy in rice leaves in response to potassium (K) deficiency were investigated. Net photosynthetic rate and the activity of ribulose-1,5-bisphosphate carboxylase/oxygenase decreased under K deficiency. Compared with

Root attributes affecting water uptake of rice (Oryza sativa) under drought.

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Lowland rice roots have a unique physiological response to drought because of their adaptation to flooded soil. Rice root attributes that facilitate growth under flooded conditions may affect rice response to drought, but the relative roles of root structural and functional characteristics for water

Processing of dissolved organic matter from surface waters to sediment pore waters in a temperate coastal wetland

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Coastal wetlands are active transitional ecotones between land and ocean, and are considered as hot spots of organic matter processing within the global carbon cycle, which dissolved organic matter (DOM) plays a critical role. In this study, combined use of ultrahigh-resolution mass spectrometry

Accumulation of perfluoroalkyl substances in lysimeter-grown rice in Japan using tap water and simulated contaminated water.

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Perfluoroalkyl substances (PFASs) are a group of contaminants of concern in agricultural crops, but little is known of their accumulation or behavior in grains. We grew Japanese rice (Oryza sativa subsp. indica) in lysimeters irrigated with tap water or tap water plus simulated contaminated water

Soil water availability and capacity of nitrogen accumulation influence variations of intrinsic water use efficiency in rice.

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Leaf intrinsic water use efficiency (WUEi) coupling maximum assimilation rate (Amax) and transpirable water lost via stomatal conductance (gsc) has been gaining increasing concern in sustainable crop production. Factors that influence leaf Amax and WUEi in rice (Oryza sativa L. cv Unkang) at

Proteomic analysis of upland rice (Oryza sativa L.) exposed to intermittent water deficit.

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Rice is the most important crop consumed all over the world. In Brazil, irrigated rice covers 50 % of the rice producing area and is responsible for 75 % of the national production. Upland rice covers most of the remaining area, and is therefore, a very important production system in the country. In

Physiological functions of the water-water cycle (Mehler reaction) and the cyclic electron flow around PSI in rice leaves.

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Changes in chlorophyll fluorescence, P700(+)-absorbance and gas exchange during the induction phase and steady state of photosynthesis were simultaneously examined in rice (Oryza sativa L.), including the rbcS antisense plants. The quantum yield of photosystem II (PhiPSII) increased more rapidly

Induction of chilling resistance by water stress, and cDNA sequence analysis and expression of water stress-regulated genes in rice.

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Exposure of seedlings of a chilling-sensitive variety of rice (Oryza sativa L. cv. Wasetoittu) to water stress (0.5 M mannitol, 30 min) at room temperature induced a degree of chilling resistance. No such resistance was induced by exogenous abscisic acid (ABA) application (10 microM, 60 min). Upon

Arsenic uptake and accumulation in rice (Oryza sativa L.) with selenite fertilization and water management.

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The accumulation of arsenic (As) in rice grain is a potential threat to human health. Our study investigated the possible mediatory role of selenite fertilization on As uptake and accumulation by rice (Oryza sativa L.) under different water management regimes (aerobic or flooded) in a pot

How does deep water rice solve its aeration problem.

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In partially flooded deep water rice (Oryza sativa L. cv Habiganj Aman II), continuous air layers trapped between the hydrophobic, corrugated surface of the leaf blades and the surrounding water constitute the major path of aeration. The conduction of gases through the internal air spaces of the

Changes in the thermal dissipation and the electron flow in the water-water cycle in rice grown under conditions of physiologically low temperature.

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Effects of low temperature on chlorophyll (Chl) fluorescence, gas exchange rate, the amounts of xanthophyll cycle pigments (Xp) and the activities of several antioxidant enzymes were examined in the 8th leaf of two rice (Oryza sativa L.) cultivars (japonica and indica types) and rbcS antisense rice.

Effect of caffeine on the expression pattern of water-soluble proteins in rice (Oryza sativa) seedlings.

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It has been suggested that caffeine acts as an allelochemical which influences the germination and growth of plants. The effect of caffeine on the expression profiles of proteins was investigated in shoot-root axes of rice (Oryza sativa) seedlings. Two-dimensional difference gel electrophoresis

Cloning and characterization of a water deficit stress responsive transcription factor gene from Oryza sativa L.

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Understanding the biochemical and molecular basis of drought mechanism in rice is important as drought is one of the major causes affecting rice crop adversely. A 1017 bp gene sequence encoding AP2/ERF family TF was isolated from Oryza sativa sp. Indica cv N22 encoding a protein of 338 amino acid

Control of water uptake by rice ( Oryza sativa L.): role of the outer part of the root.

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A new pressure-perfusion technique was used to measure hydraulic and osmotic properties of the outer part of roots (OPR) of 30-day-old rice plants (lowland cultivar: IR64, and upland cultivar: Azucena). The OPR comprised rhizodermis, exodermis, sclerenchyma and one cortical cell layer. The technique

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Herbal & Natural Medicine

قاعدة بيانات الأعشاب الطبية الأكثر اكتمالا التي يدعمها العلم

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العلاجات العشبية مدعومة بالعلم
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خريطة GPS تفاعلية - ضع علامة على الأعشاب في الموقع (قريبًا)
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