Habitat fragmentation threatens terrestrial arthropod biodiversity, and thereby also leads to alterations of ecosystem functioning stability. Predation on insects seeds by arthropods are two very important ecological functions because their community-structuring effects. We addressed the effect fragment connectivity, size, edge insect seed predation arthropods. studied 60 natural fragments gras...

Highlight Research Seeds can grow into seagrass seedlings for an optimal period of five weeks Seed sowing be optimized by supplementing nutrients with fertilizers The seedling transplant method, which utilizes seed seedlings, is not significantly different in daily growth from the anchor donors/seeds transport biomass content leaves used to determine rate Abstract Globally, area beds important ...

Psidium cattleianum Sabine (strawberry guava) is one of Hawai‘i’s most disruptive alien plants. Dense stands can suppress growth and establishment of native species, support high populations of crop-damaging fruit flies, and preclude restoration or management of native forests. Our research investigated factors affecting persistence of P. cattleianum seeds in lowland wet forest soils. We collec...

Several insects, including the wheat stem sawfly ( Cephus cinctus Norton, Hymenoptera: Cephidae), interfere with biomass and grain production of triticale (× Triticosecale). We conducted a 2-year study in southern Alberta to compare cultivars Pronghorn AC Ultima at 200 400 seeds/m 2 terms damage incidence parasitoid wasp Bracon cephi Gahan, Braconidae). Plants seeded high rate were on average l...

cadmium (cd), known as a non-essential heavy metal, can cause oxidative stress in plants. in this study, an attempt was carried out to find out whether cd-induced oxidative and microscopic changes could be observed in the early stage of seedling growth. seeds of brassica napus (cvs. zheda 619 and zs 758) were germinated in vitro at 0, 100, 200, 300, and 500 μm cd concentrations in dark for 48 h...

Aulacaspis yasumatsui Takagi invaded Guam in 2003 and caused the widespread mortality of indigenous Cycas micronesica K.D. Hill population. The regeneration surviving tree population continues to be constrained 20 years later, a look at changes megastrobili traits may inform future conservation management decisions concerning regeneration. We quantified megastrobilus reproductive effort output ...

objective: importance of management of gardens weeds is an issue that unfortunately has less been investigated by weeds researchers of country. one of the most important restrictive agents of cultivated surface and producing crops of citrus orchards are weeds. methods: in this investigation, isolates of fusarium solani were recovered from diseased broomrape collected from tomato, eggplant, melo...

in conventional agricultural systems application of fungicide and pesticides for seed treatment had been extended in wide range. this study was conducted to evaluate the effects of seed treatment on seed vigor indices on back cross roshan of wheat cultivar in vitro status during 2007. the experiment was done in a completely randomized factorial design with eight replications. treatment were inc...