The National Cancer Institute’s (NCI) record of plants that have shown significant inhibitory effect in experimental tumor systems (active plants), 1960–1974, was compared with species and genera in references on medicinal folklore, including poisonous plants, to determine whether their percentages of active plants were significantly greater than those screened at random (10.4%). The percent ac...

thrips specimens were collected in the year 2014 on different ornamental plants from mahallat (markazi province), iran. in this study, 11 species in six genera and three different families of thysanoptera were collected and identified. the scientific names of thrips species are as follow: melanthrips knechteli, m. pallidior, frankliniella intonsa, f. occidentalis, microcephalothrips abdominalis...

introduction mites of the phytoseiidae family have been extensively studied as biological control agents of different mites and insect pests. some species also feed on nematodes, fungal spores, pollen and exudates from plants and insects. about 2,300 phytoseiid species belonging to 90 genera have been described in this family (chant and mcmurtry 2007). considerable efforts have been made in rec...

distribution and abundance of plants has been correlated with a variety of complex environmental gradients. environmental factors affect plants growth and need to be understood by ecosystem managers. this study was carried out to examine the relationships between site factors and different vascular and non-vascular plants in north of iran. for this purpose, vegetation and soil sampling was perf...

The ability to discriminate between species using barcoding loci has proved more difficult in plants than animals, raising the possibility that plant species boundaries are less well defined. Here, we review a selection of published barcoding data sets to compare species discrimination in plants vs. animals. Although the use of different genetic markers, analytical methods and depths of taxon s...

Abstract. Vegetation of each region is one of the most important phenomena of nature and is the best guide to judge about the ecological sciences of that region because the plants are resistant organisms that have endured the long term conditions of all kinds of environmental conditions for a long period of time and have adapted with environmental stresses. Therefore floristical investigation o...

BACKGROUND The study of plants and fungi sold in open-air markets is an important part of ethnobotanical enquiry. Only few such studies were carried out in Europe. METHODS Four of the largest open-air markets of south-eastern Poland were visited regularly, and the plants sold in them were recorded between 2013 and 2015. The aim of the study was to record native and/or wild species sold in the...

drought preconditioning (dp) is a method of irrigation with low frequency and longer duration, to extend the root system and suppress drought damage in plants. in the present study, the effect of dp for 30 days on increasing tolerance to drought stress in two turfgrass species, creeping bentgrass (agrostis stolonifera cv.palustris) and tall fescue (festuca arundinacea cv. greystone) was investi...

abstract in this study different proportions of nh4+ and no3- in the growth medium on plant growth were investigated in hydroponic greenhouse experiments. the objectives of these studies were to investigate if ammonium (nh4+) stress in cucumber, a species sensitive to nh4+ toxicity, can be alleviated by matching the nitrogen supply rate to the plant nitrogen demand. ammonium was applied at a re...