نتایج جستجو برای: yielding and salinity susceptibility

تعداد نتایج: 16850734  

2013
Jane-Francis Tatah Kihla Akoachere Thomas Njinuwoh Masalla Henry Akum Njom

BACKGROUND Cholera has been endemic in Douala, since 1971 when it was first recorded in Cameroon. Outbreaks have often started in slum areas of the city including New Bell. Despite the devastating nature of outbreaks, always resulting in high mortality and morbidity, a paucity of information exists on the reservoirs of the causative agent, V. cholerae, and factors maintaining its persistence. T...

Journal: :American journal of botany 2001
G Houle L Morel C Reynolds J Siégel

Salinity reduces substrate water potential, thereby restricting water and nutrient uptake by plants; salinity may also cause ionic imbalance and toxicity. Because substrate salinity fluctuates through the growing season, a plant may be exposed to different salinity levels, at various stages of development, with potentially significant consequences on population dynamics. Here, we present the re...

2017
S. Negrão S. M. Schmöckel M. Tester

BACKGROUND Because soil salinity is a major abiotic constraint affecting crop yield, much research has been conducted to develop plants with improved salinity tolerance. Salinity stress impacts many aspects of a plant's physiology, making it difficult to study in toto Instead, it is more tractable to dissect the plant's response into traits that are hypothesized to be involved in the overall to...

2014
Lyuben Zagorchev Plamena Kamenova Mariela Odjakova

Contemporary agriculture is facing new challenges with the increasing population and demand for food on Earth and the decrease in crop productivity due to abiotic stresses such as water deficit, high salinity, and extreme fluctuations of temperatures. The knowledge of plant stress responses, though widely extended in recent years, is still unable to provide efficient strategies for improvement ...

Journal: :Comparative biochemistry and physiology. Part B, Biochemistry & molecular biology 2003
Stephen T Kinsey Bailey C Lee

The effect of acclimation salinity and salinity changes on the concentration of high-energy phosphate metabolites and arginine kinase (AK) flux was examined in vivo in juvenile blue crabs using 31P-nuclear magnetic resonance (NMR). Crabs were acclimated for 7 days to a salinity of 5 or 35 per thousand and then placed in a flow apparatus that could sustain the animals while NMR spectra were acqu...

2016
Jun Peng Lei Zhang Jingran Liu Junyu Luo Xinhua Zhao Helin Dong Yan Ma Ning Sui Zhiguo Zhou Yali Meng

Cotton (Gosspium hirsutum L.) is classified as a salt tolerant crop. However, its yield and fiber quality are negatively affected by soil salinity. Studies on the enzymatic differences in sucrose metabolism under different soil salinity levels are lacking. Therefore, field experiments, using two cotton cultivars, CCRI-79 (salt-tolerant) and Simian 3 (salt-sensitive), were conducted in 2013 and ...

Journal: :desert 2015
reza manuchehri hassan salehi

water salinity and drought are the major abiotic stresses limiting turf grass growth. on the other hand, shortage of waterresources and salinity of water and soil in the arid and semi-arid zones such as iran, are the restricting factors in developinglawn turf grasses. an experiment was conducted to evaluate the combined effects of water salinity and deficit irrigation ontall fescue (festuca aru...

This study was performed to investigate interactions of different levels of vermicompost extract and salinity stress on germination characteristics of chickpea seedlings. The factorial experiment was conducted in completely randomized design with three replications. Concentrations of vermicompost extract (0, 5, 10 and 20 volumetric percentage) and salinity levels (0, 30, 60 and 90 mM NaCl). Res...

Journal: :چغندرقند 0
سمر خیامیم استادیار موسسه تحقیقات اصلاح و تهیه بذر چغندرقند محمد رضا جهاداکبر مربی مرکز تحقیقات کشاورزی و منابع طبیعی اصفهان حمید نوشاد مربی موسسه تحقیقات چغندرقند فرانک روزبه مربی موسسه تحقیقات چغندرقند لیلا زاویه مودت کارشناس ارشد سازمان جهاد کشاورزی آذربایجان غربی

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...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید