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[Effects of elevated ozone on rice (Oryza sativa L.) leaf lipid peroxidation and antioxidant system].

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Ingia / Ingia

With rice (Oryza sativa L.) cultivar 3694 Fan as test material, and by using open top chambers, the effects of different ozone (O3) concentration on the leaf soluble protein content, lipid peroxidation, and antioxidant system were applied. Three treatments were applied, i.e., charcoal-filtered air

Effects of ozone on growth, yield and leaf gas exchange rates of four Bangladeshi cultivars of rice (Oryza sativa L.).

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Ingia / Ingia

To assess the effects of tropospheric O3 on rice cultivated in Bangladesh, four Bangladeshi cultivars (BR11, BR14, BR28 and BR29) of rice (Oryza sativa L.) were exposed daily to charcoal-filtered air or O3 at 60 and 100 nl l(-1) (10:00-17:00) from 1 July to 28 November 2008. The whole-plant dry mass

Comparative extraction and simple isolation improvement techniques of active constituents' momilactone A and B from rice husks of Oryza sativa by HPLC analysis and column chromatography.

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Ingia / Ingia

This paper reports comparative extraction efficiencies and enhancement methods for natural herbicidal (growth inhibitors) compounds, momilactone A and B, respectively from the dried husks of Oryza sativa using different extraction techniques and different solvent systems. Four different

Effects of ozone on the growth and yield of rice (Oryza sativa L.) under different nitrogen fertilization regimes.

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Ingia / Ingia

To examine whether the sensitivity of growth and yield of rice (Oryza sativa L.) to ozone (O₃) varies under different nitrogen (N) fertilization conditions, rice cultivar 'Koshihikari' was exposed to O₃ under either standard N (SN) fertilization or no N (NN) fertilization. The

Evaluations of allelopathic effect of Echinochloa colona weed on rice (Oryza sativa L. 'Vandana').

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Ingia / Ingia

Echinochloa colona (L.) Link is a very problematic weed in up land and medium land rice causing significant reduction in yield. In the present investigation, laboratory and field experiments were conducted to evaluate the nature of interaction E. colona on germination and growth of the up land rice

Leaf ascorbic acid level--is it really important for ozone tolerance in rice?

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Ingia / Ingia

Leaf ascorbic acid (ASA) level is thought to be an important trait conferring stress tolerance in plants, but definite evidence regarding its effectiveness in the breeding of stress tolerant crops is lacking. Therefore, the stress response of a rice TOS17 insertion mutant (ND6172) for a

Quantification of hydrogen peroxide in plant tissues using Amplex Red.

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Ingia / Ingia

Reactive oxygen species (ROS) are by-products of photosynthesis and respiration in plant tissues. Abiotic and biotic stressors also induce the production and temporary accumulation of ROS in plants, including hydrogen peroxide (H2O2), whereby they can act as secondary messengers/chemical mediators

Effects of air pollution on rice yield in the Pakistan Punjab.

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Ingia / Ingia

A study using open-top chambers ventilated with ambient or charcoal filtered air in the vicinity of Lahore, Pakistan demonstrated reductions of 42% and 37% in the grain yield of two cultivars of rice (Oryza sativa L.). This yield reduction was primarily due to the reduction in mean panicle number

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Herbal & Natural Medicine

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