Leaves are extraordinarily variable in form, longevity, venation architecture, and capacity for photosynthetic gas exchange. Much of this diversity is linked with water transport capacity. The pathways through the leaf constitute a substantial (>or=30%) part of the resistance to water flow through plants, and thus influence rates of transpiration and photosynthesis. Leaf hydraulic conductance (...

There remains limited information to characterize the solar-induced chlorophyll fluorescence (SIF)-gross primary production (GPP) relationship in C4 cropping systems. The annual crop corn and perennial miscanthus differ phenology, canopy structure leaf physiology. Investigating SIF-GPP relationships these species could deepen our understanding of within crops. Using situ SIF GPP measurements fo...

A single plant produces several different types of leaves or leaf-like organs during its life span. This phenomenon, which is termed heteroblasty, is an invariant feature of shoot development but is also regulated by environmental factors that affect the physiology of the plant. Invariant patterns of heteroblastic development reflect global changes in the developmental status of the shoot, such...

increased salinity stress because of rising temperature as a result of global warming. High salinity enhances plants photorespiration and affects its physiology, but Salicornia europaea L. in Urmia Lake has adapted to grow, propagate and occupy increasingly exposed saline habitats. Plant and soil samples were collected in triplicate plots from different sites of retreated beds of Urmia Lake in ...

Different agricultural practices may have substantial impacts on crop physiology and yield. However, it is still not entirely clear how multiple agricultural practices such as tillage, biochar and different nutrient applications could influence corn physiology and yield. We conducted a three-year field experiment to study the responses of corn physiology, yield, and soil respiration to six diff...

through a model of stomatal conductance Jinzhi Wang Introduction I came to CGREC on May 7, 2008 to work under the direction of Dr. Xuejun Dong, eco-physiologist at the Center. His work involves the relationship between environmental factors (precipitation, temperature, and radiation) and soil respiration and plant physiology (leaf photosynthetic rates and leaf area index) of dominant species. O...

Abstract Wheat rusts, including stripe, leaf, and stem are severe wheat diseases cause huge yield loss in China annually. Benefiting from utilizing the genetic resistance varieties, rust has been effectively controlled since 1970s; however, stripe leaf rusts still threating production due to lack of effective agricultural regulations. This review summarizes research advances on physiology, epid...

Manuscript submitted to Plant Physiology (Update) 1 2 Running Head: Leaf hydraulics and stomatal conductance 3 4 Corresponding author: 5 Fulton E. Rockwell 6 Harvard University 7 Department of Organismic and Evolutionary Biology 8 Cambridge, MA 02138. 9 Phone: (617) 496-0603 10 Email: [email protected] 11 12 Research Area: 13 Focus Issue on water: Update on stomata, Ecophysiology and Su...

Leaf venation networks provide an integrative linkage between plant form, function and climate niche, because leaf water transport underlies variation in plant performance. Here, we develop theory based on leaf physiology that uses community-mean vein density to predict growing season temperature and atmospheric CO2 concentration. The key assumption is that leaf water supply is matched to water...

Shrub encroachment of grasslands is a transformative ecological process by which native woody species increase in cover and frequency and replace the herbaceous community. Mechanisms of encroachment are typically assessed using temporal data or experimental manipulations, with few large spatial assessments of shrub physiology. In a mesic grassland in North America, we measured inter- and intra-...