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When does temperature matter? Response of rice arsenic to heat exposure during different developmental stages
Springer Science and Business Media LLC - Tập 491 - Trang 369-386 - 2023
Arsenic is a frequent contaminant of rice. Recent studies show that elevated temperatures, like those from climate change, can further increase arsenic concentrations in rice. It is still unclear if the timing of heat exposure relative to plant development influences the magnitude and allocation of arsenic accumulation in rice plants. We grew potted rice plants from seedlings until maturity in gro......
A long term evaluation of differential potassium fertilization of a creeping bentgrass putting green
Springer Science and Business Media LLC - Tập 431 - Trang 303-316 - 2018
The objective of this research was to evaluate bentgrass quality, growth, and disease incidence over a range of soil and tissue potassium levels. ‘Penn A4’ creeping bentgrass (Agrostis stolonifera L.) on a sand root zone was maintained as a putting green. The treatments included four levels of liquid potassium sulfate, ranging from 0 to 249 kg ha−1 yr.−1 K and one level of granular gypsum at a rat......
Photosynthesis controls of CO2 efflux from maize rhizosphere
Springer Science and Business Media LLC - Tập 263 - Trang 85-99 - 2004
The effects of different shading periods of maize plants on rhizosphere respiration and soil organic matter decomposition were investigated by using a 13C natural abundance and 14C pulse labeling simultaneously. 13C was a tracer for total C assimilated by maize during the whole growth period, and 14C was a tracer for recently assimilated C. CO2 efflux from bare soil was 4 times less than the total......
The vicious cycle of lettuce corky root disease: effects of farming system, nitrogen fertilizer and herbicide
Springer Science and Business Media LLC - Tập 388 Số 1-2 - Trang 119-132 - 2015
Intercropping maintains soil fertility in terms of chemical properties and enzyme activities on a timescale of one decade
Springer Science and Business Media LLC - - 2015
Overyielding (i.e., mixtures of crops yielding higher than expected when compared with monocultures) and increased nutrient acquisition have been found in many intercropping systems. However, there are very few published studies on long-term changes in soil chemical and biological properties in intercropping systems compared to sole cropping. A field experiment was established in 2003 in Gansu pro......
The role of histidine kinase signalling in response to salt stress
Springer Science and Business Media LLC - - Trang 1-15 - 2023
Salt stress is a global environmental problem, which affects various biochemical and physiological processes in plants and significantly decreases the quantity and quality of the yield. NaCl is the main driver of NaCl-mediated effects because the accumulation of sodium ions (Na+) in plant tissues disrupts the homeostasis of other ions and may lead to secondary stresses. Two-component signalling (T......
Effects of forest conversion and recovery age on fine root multi-element stoichiometry in subtropical forests
Springer Science and Business Media LLC - Tập 492 - Trang 675-686 - 2023
Fine root multi-element stoichiometric coupling is essential to maintain terrestrial ecosystem functions. Although forest conversion has been a major driver globally in recent decades, its effect on multi-element stoichiometric coupling remains poorly understood. This study examined the ratios of fine root N or P relative to exchangeable cations (i.e., K, Ca, and Mg) along a chronosequence of seco......
Stemflow nutrient inputs to soil in a successional hardwood forest
Springer Science and Business Media LLC - Tập 140 - Trang 249-254 - 1992
Stemflow and throughfall from a regenerating (8-year-old) southern Appalachian hardwood forest were collected to examine the relative importance of tree bole nutrient leaching in response to acid deposition. Samples from nine (2 m2) stemflow collection plots were analyzed for four dormant season and 11 growing season rainstorm events. Results showed that, relative to throughfall fluxes, stemflow a......
Retention of phytosiderophores by the soil solid phase – adsorption and desorption
Springer Science and Business Media LLC - Tập 404 - Trang 85-97 - 2016
Graminaceous plants exude phytosiderophores (PS) for acquiring Fe. Adsorption of PS and its metal complexes to the soil solid phase reduces the FePS solution concentration and hence Fe uptake. In this study we aimed to quantify adsorption, and to determine to what extent adsorption depends on the complexed metal and on soil properties. Furthermore, we examined if adsorption is a reversible process......
Role of plant growth promoting Bacteria (PGPRs) as biocontrol agents of Meloidogyne incognita through improved plant defense of Lycopersicon esculentum
Springer Science and Business Media LLC - Tập 436 - Trang 325-345 - 2019
Root-knot nematodes are major constraints among different pathogens with wide host range and cause severe agricultural loss worldwide. The present study was designed to understand the role of plant growth promoting bacteria (Pseudomonas aeruginosa & Burkholderia gladioli) on growth and antioxidative potential in nematode infected Lycopersicon esculentum seedlings. An experiment was conducted to as......
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