Jag skall utgående från begreppen närhet och avstånd de nära beroende distans, både teoretiskt på basen av vissa herrgårdsstudier granska förhållandet mellan herrskap tjänstefolk med utgångspunkt i herrgårdslivsformen Finland. Min avsikt är att syna vilka kulturella mekanismerna var för komma tillrätta det paradoxala herrskapet vara så tjänstefolket samtidigt representera ett ledande makthavand...

Weed infestation is a major problem in the aerobic rice system due to lack of standing water that could prevent growth weeds. To reduce heavy reliance on herbicide, this research aims determine potential cassava allelopathy for inhibition weeds rice. The allelopathic extracts germination and tested weed species (Eleusine indica, Ageratum conyzoides, Cyperus distans) (Oryza sativa) was conducted...

The proportion of polyploid plant species increases at higher latitudes, and it has been suggested that original postglacial Arctic immigrants of some large groups, including grasses, were polyploid. We analyzed noncoding nuclear and chloroplast DNA of all North American diploid Puccinellia (Poaceae) and a subset of arctic polyploids to hypothesize evolutionary relationships among diploids and ...

In the current study, a field experiment was conducted to examine effects of litter on seedling emergence and early growth of four dominant weed species from the early successional stages of old field ecosystem and two perennial grassland species in late successional stages. Our results showed that increased litter cover decreased soil temperature and temperature variability over time and impro...

Puccinellia tenuiflora is a typical salt-excluding halophytic grass with excellent salt tolerance. Plasma membrane Na+/H+ transporter SOS1, HKT-type protein and tonoplast Na+/H+ antiporter NHX1 are key Na+ transporters involved in plant salt tolerance. Based on our previous research, we had proposed a function model for these transporters in Na+ homeostasis according to the expression of PtSOS1...