A non-malleable extractor is a seeded extractor with a very strong guarantee – the output of a non-malleable extractor obtained using a typical seed is close to uniform even conditioned on the output obtained using any other seed. The first contribution of this paper consists of two new and improved constructions of non-malleable extractors: We construct a non-malleable extractor with seed-leng...

Garden orache (Atriplex hortensis L.), a halophytic forb in the family Chenopodiaceae, is well adapted to dry saline habitats. Here, we presented the results of the effect of salinity and seed weight on seed germination and radicle emergence of A. hortensis. Highest germination percentages were obtained under non-saline conditions and increases in salinity inhibited seed germination with less t...

We study two variants of seeded randomness extractors. The first one, as studied by Goldreich et al. [8], is seeded extractors that can be computed by AC circuits. The second one, as introduced by Bogdanov and Guo [3], is (strong) extractor families that consist of sparse transformations, i.e., functions that have a small number of overall input-output dependencies (called sparse extractor fami...

endozoochory is one of the seed dispersal modes through animal’s digestive systems transmission and the increases rate germination and plant establishment. the aim of this study, investigated the relationship between seed characteristics and the passage through the digestive tract of livestock and domestic animals (cattle, sheep and goats) in the 7 species perennial grass 8 species perennial fo...

to study seed dormancy and the after-ripening period in barley genotypes (57 dutch genotypes and two iranian cultivars (gorgan and valfair)), an experiment of randomized complete block design (two replications) was conducted at the research farm of collage of agriculture and natural resources, university of tehran in 2004-2005. in the growing stage of zgs92, panicle was collected. the percentag...

Zimand [24] presented simple constructions of locally computable strong extractors whose analysis relies on the direct product theorem for one-way functions and on the Blum-Micali-Yao generator. For N -bit sources of entropy γN , his extractor has seed O(logN) and extracts N random bits. We show that his construction can be analyzed based solely on the direct product theorem for general functio...

ABSTRACT- Improper seed germination is a serious challenge for medicinal herbs under drought stress conditions in semi-arid and arid regions. A new group of plant growth regulators known as karrikins have been proved useful to improve seed germination in some plants. In this regard, the effects of karrikin on seed germination and vigor of three medicinals under drought stress were examined. See...

in order to study the morphological, phenological and yield characteristics of 70 desi chickpea genotypes, a trial was conducted on 2007 in research farm of agriculture faculty of ferdowsi university of mashhad. in this study, 70 desi chickpea genotypes from ferdowsi university of mashhad seed bank, were planted in plots without replication including one to four planting rows at maximum length ...