Patrick C. Friesen

Environmental factors have a greater influence on photosynthetic capacity in C4 plants than C4 biochemical subtypes or growth forms

Yuzhen Fan, Belinda E. Medlyn, Russell K. Monson, Rowan F. Sage et autres

• Our understanding of how photosynthesis varies among C4 species and across different growth and measurement conditions remains limited. • We collated 1,696 CO2 response curves of net CO2 assimilation rate (A/Ci curves) from C4 species grown and measured at various environmental …

au, us, ca, gb, br (code pays fourni par la source)

I Give a Rip

Patrick C. Friesen

Photosynthetic responses to chilling in a chilling‐tolerant and chilling‐sensitive Miscanthus hybrid

Patrick C. Friesen, Rowan F. Sage

Miscanthus is a C4 perennial grass being developed for bioenergy production in temperate regions where chilling events are common. To evaluate chilling effects on Miscanthus, we assessed the processes controlling net CO2 assimilation rate (A) in Miscanthus x giganteus (M161) and a …

ca (code pays fourni par la source)

C4bioenergy crops for cool climates, with special emphasis on perennial C4grasses

Rowan F. Sage, Murilo de Melo Peixoto, Patrick C. Friesen, Bill Deen

There is much interest in cultivating C4 perennial plants in northern climates where there is an abundance of land and a potential large market for biofuels. C4 feedstocks can exhibit superior yields to C3 alternatives during the long warm days of summer …

ca (code pays fourni par la source)

Sub-zero cold tolerance ofSpartina pectinata(prairie cordgrass) andMiscanthus × giganteus: candidate bioenergy crops for cool temperate climates

Patrick C. Friesen, Murilo de Melo Peixoto, DoKyoung Lee, Rowan F. Sage

Miscanthus × giganteus grown in cool temperate regions of North America and Europe can exhibit severe mortality in the year after planting, and poor frost tolerance of leaves. Spartina pectinata (prairie cordgrass), a productive C4 perennial grass native to North America, has …

ca, us (code pays fourni par la source)

Chilling and frost tolerance in Miscanthus and Saccharum genotypes bred for cool temperate climates

Patrick C. Friesen, Murilo de Melo Peixoto, Florian A. Busch, Daniel C. Johnson et autres

Miscanthus hybrids are leading candidates for bioenergy feedstocks in mid to high latitudes of North America and Eurasia, due to high productivity associated with the C4 photosynthetic pathway and their tolerance of cooler conditions. However, as C4 plants, they may lack tolerance …

ca, au (code pays fourni par la source)

Initial Events during the Evolution of C4 Photosynthesis in C3 Species of Flaveria

Tammy L. Sage, Florian A. Busch, Daniel C. Johnson, Patrick C. Friesen et autres

The evolution of C4 photosynthesis in many taxa involves the establishment of a two-celled photorespiratory CO2 pump, termed C2 photosynthesis. How C3 species evolved C2 metabolism is critical to understanding the initial phases of C4 plant evolution. To evaluate early events in …

ca, gb (code pays fourni par la source)

Comparing rainfall interception in plantation trials of six tropical hardwood trees and wild sugar cane Saccharum spontaneum L.

Patrick C. Friesen, ANDREW W. PARK, Aneth Aracelly Sarmiento‐Serrud

ABSTRACT Native hardwood trees are frequently planted to restore forest cover to abandoned agricultural lands in the Neotropics. Few studies compare rainfall interception in such plantations and the vegetation the trees are planted to replace. We compared throughfall (TF) and stemflow (SF) …

ca, pa (code pays fourni par la source)

Unusual Morphology Among Common Moonworts (Botrychium lunaria) From Churchill, Manitoba

Richard J. Staniforth, Patrick C. Friesen

Although we no longer believe that moonworts hold magical properties after being stepped upon by horses under the light of the full moon, this group of plants still has many intriguing features to draw our attention. 1,2,3The moonworts (Botrychium spp.) are a …

Nigéria, ca (code pays fourni par la source)

Comparative water fluxes through leaf litter of tropical plantation trees and the invasive grass Saccharum spontaneum in the Republic of Panama

ANDREW W. PARK, Patrick C. Friesen, Aneth Aracelly Sarmiento‐Serrud

ca, pa (code pays fourni par la source)

The breath you take from the Lord

Patrick C. Friesen

Blessing the Bones into Light

Patrick C. Friesen