ABSTRACT Sour passion fruit is a crop widely cultivated throughout Brazil, due to its adaptation the tropical climate. However, in semi-arid regions development limited by high concentration of soluble salts waters commonly used irrigation. In this context, exogenous application low concentrations hydrogen peroxide can attenuate damage caused salt stress. The objective study was evaluate electr...

Anthropogenic impacts on water resources, especially by ??nutrient discharge, is a worldwide problem in marine coastal areas. In this context, seaweed cultivation aquaculture wastewater can be considered as an alternative for effluent mitigation, where the biomass becomes source of valuable compounds. The current study examined potential use seaweeds Ulva pseudorotundata and rigida to remove nu...

Photosystem II is extremely susceptible to environmental alterations, particularly high temperatures. The maintenance of an efficient photosynthetic system under stress conditions one the main issues for plants attain their required energy. Nowadays, searching alleviators goal maintaining productivity and, thereby, crop yield global climate change. Potassium silicate (K2SiO3, 1.5 mM) and silico...

determination of chlorophyll content and chlorophyll fluorescence has the potential needed to analyze the efficiency of photosynthesis in plants against environmental stresses, especially salinity, and its simplicity facilitates stress evaluation. in order to study the response of different photosynthetic characters to salinity stress at different sugar beet growth stages, two separate experime...

The Germplasm Bank of Stevia rebaudiana segregants the University Córdoba is a strategy for use genetic variability and efficient crop yield. There are genotypes with important characteristics such as: high tolerance to salt stress climatic change (high CO2 in Earth surface), late flowering, erect architecture, contents steviol glycosides. However, there lack in-depth studies morphophysiologica...

drought is one of the most important factors limiting growth and yield in many parts of the world. in order to evaluate the effects of drought stress on some morphological and physiological traits of two cultivars of bean, two red beans (derakhshan and goli) in four drought treatments including 25%, 50%, 75%, control 100% field capacity were studied in a factorial experiment based on complete r...

Bathorhodopsin-rhodopsin difference spectra of native 11-cis-rhodopsin and regenerated 9-cis-rhodopsin were measured at room temperature with a double-beam laser spectrophotometer after excitation at 532 nm. A detailed analysis of data obtained at 85 psec after excitation suggests that the bathorhodopsins generated from 11-cis- and 9-cis-rhodopsin differ in their extinction coefficients and tha...

To explore the response of summer maize leaf senescence, photosynthetic characteristics, and yield to depth one-time base application controlled-release urea, which provides a theoretical basis for light simplified production maize. Seven treatments were set up with Zhengdan 958 as material under field conditions, including no nitrogen fertilizer (CK), surface spreading (DP0), furrow 5 cm (DP5)...

The photochemical reactions of methanolic nalidixic acid (NAL) solution in the absence and in the presence of air have been investigated using 300 nm UV light. From the reactions, 1-ethyl-7-methyl-4-oxo-4-hydro-1,8naphthyridine (EMDN), formic acid, and formaldehyde are produced. In the presence of air, hydrogen peroxide is also detected along with the products listed above. The presence of oxyg...