Saxby: Gr,issland Plants
نویسنده
چکیده
Another ornamental, *Euonymus ph ellomana, has in parts of Riccarton Bush assumed dominance in the shrub layer and its seedlings are so abundant on the iloor of the forest that many seedlings of native species are smothered. Flooding of the soil during the dry summer period may in this instance assist the native species to playa more vigorous part in the community, as it seems that lack of soil moisture during the summer over a number of years was a factor which placed the native members of the forest community as a whole at a disadvantage as compared with the adventivespecies.
منابع مشابه
Occurrence of an herbicide‐resistant plant trait in agricultural field margins
Agricultural environments allow study of evolutionary change in plants. An example of evolution within agroecological systems is the selection for resistance to the herbicide glyphosate within the weed, Conyza canadensis. Changes in survivorship and reproduction associated with the development of glyphosate resistance (GR) may impact fitness and influence the frequency of occurrence of the GR t...
متن کاملMuscle contributions to medial tibiofemoral compartment contact loading following ACL reconstruction using semitendinosus and gracilis tendon grafts
BACKGROUND The muscle-tendon properties of the semitendinosus (ST) and gracilis (GR) are substantially altered following tendon harvest for the purpose of anterior cruciate ligament reconstruction (ACLR). This study adopted a musculoskeletal modelling approach to determine how the changes to the ST and GR muscle-tendon properties alter their contribution to medial compartment contact loading wi...
متن کاملGlyphosate Resistance in Tall Waterhemp (Amaranthus tuberculatus) from Mississippi is due to both Altered Target-Site and Nontarget-Site Mechanisms
A tall waterhemp population from Missisippi was suspected to be resistant to glyphosate. Glyphosate dose response experiments resulted in GR50 (dose required to reduce plant growth by 50%) values of 1.28 and 0.28 kg ae ha 21 glyphosate for the glyphosate-resistant (GR) and -susceptible (GS) populations, respectively, indicating a five-fold resistance. The absorption pattern of C-glyphosate betw...
متن کاملRipening in the tomato Green-ripe mutant is inhibited by ectopic expression of a protein that disrupts ethylene signaling.
To achieve full ripening, climacteric fruits, such as tomato require synthesis, perception and signal transduction of the plant hormone ethylene. The nonripening phenotype of the dominant Green-ripe (Gr) and Never-ripe 2 (Nr-2) mutants of tomato is the result of reduced ethylene responsiveness in fruit tissues. In addition, a subset of ethylene responses associated with floral senescence, absci...
متن کاملThe alc-GR system: a modified alc gene switch designed for use in plant tissue culture.
The ALCR/alcA (alc) two-component, ethanol-inducible gene expression system provides stringent control of transgene expression in genetically modified plants. ALCR is an ethanol-activated transcription factor that can drive expression from the ALCR-responsive promoter (alcA). However, the alc system has been shown to have constitutive expression when used in plant callus or cell suspension cult...
متن کامل