نتایج جستجو برای: paspalum
تعداد نتایج: 810 فیلتر نتایج به سال:
Interactions between host plant resistance and biological control may benefit or hinder pest management efforts. Turfgrass cultivars have rarely been tested for extrinsic resistance characteristics such as occurrence and performance of beneficial arthropods on plant genotypes with resistance to known turf pests. Parasitism of fall armyworm, Spodoptera frugiperda (J.E. Smith), among six turfgras...
Seashore paspalum (Paspalum vaginatum Swartz) is a perennial warm-season turfgrass which known for its superb salinity tolerance. Compared to bermudagrass, seashore exhibited the adverse character of faster vertical growth, wider leaf, weak cold-, drought- and disease-resistance. In this study, we aimed improve these unfavorable traits through strategy callus irradiation. The results showed tha...
Forage species common to the southern USA Piedmont region, Lolium arundinacea, Paspalum dilatatum, Cynodon dactylon and Trifolium repens, were established in a model pasture system to test the future climate change scenario of increasing ozone exposure in combination with varying rainfall amounts on community structure and nutritive quality. Forages were exposed to two levels of ozone [ambient ...
The natural vegetation of Southern Brazil's coastal region includes grasslands formations that are poorly considered in conservation policy, due to the lack of knowledge about these systems. This study reports results from a regional-scale survey of coastal grasslands vegetation along a 536 km gradient on southern Brazil. We sampled 16 sites along the coastal plain with 15 plots (1 m²) per site...
We discuss the Higgs boson mass sum rules in the Minimal Super-symmetric Standard Model in order to estimate the upper limits on the masses of stop quarks as well as the lower bounds on the masses of the scalar Higgs boson states. The investigation of the bounds on the scale of quark-lepton compositeness derived from the CDF Collaboration (Fermilab Tevatron) data and applied to new extra gauge ...
We discuss the structure of Yukawa couplings in D-brane models in which the SM fermion spectrum appears at the intersections of D-branes wrapping a compact space. In simple toroidal realistic examples one can explicitly compute the Yukawa couplings as a function of the geometrical data summing over world-sheet instanton contributions. A particular simple model with a N = 1 SUSY spectrum and thr...
We report measurements of single- and double-spin asymmetries for W^{±} and Z/γ^{*} boson production in longitudinally polarized p+p collisions at sqrt[s]=510 GeV by the STAR experiment at RHIC. The asymmetries for W^{±} were measured as a function of the decay lepton pseudorapidity, which provides a theoretically clean probe of the proton's polarized quark distributions at the scale of the W ...
A review of searches for physics beyond the Standard Model carried out at high energy leptonhadron and hadron-hadron facilities is presented, with emphasis on topics of interest for future data taking at the upgraded Tevatron pp̄ and HERA ep colliders. The status and discovery prospects are discussed for leptoquarks, Technicolour and supersymmetry, forbidden lepton and quark flavourchanging proc...
Pisolithus albus (Basidiomycota, Sclerodermataceae) is reported here for the first time from Egypt where it was found on Karaman Island in Sohag Governorate. It forming an ectomycorrhizal association with Eucalyptus occidentalis and Vachellia nilotica. The fungus also near two potentially new hosts: Paspalum distichum Dodonaea viscosa; however, mycorrhizal connections these hosts not proven. Ph...
The objective of this study was to evaluate 94 Paspalum notatum genotypes over two growing seasons estimate genetic dissimilarity through agronomic traits and the distance between genotypes. This information is used create an ideotype from best averages obtained for set characteristics evaluated. Seven apomitic, three sexual, 81 hybrid were compared with native “André da Rocha”, “Bagual”, culti...
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