in the absence of herbicides, cover crops play an important role for weed management in organic than in conventional farming. therefore, in order to evaluate the effects of cover crop management and plant density of buckwheat (fagopyrum esculentum) as cover crop on weed suppression, a field experiment was conducted at the research farm of university of zanjan, during the growing season of 2011....

The effects of varying irrigation intervals (I) and foliar application of salicylic acid (M) on morphological and physiological traits of Catharanthus roseus L. were studied in a factorial experiment based on a randomized complete block design with three replications. The experimental treatments consisted of four irrigation intervals [2 days (I1), 4 days (I2), 6 d...

The extent o which the 500-Hz component of a steady-state vowel contributed to its phonemic category was measured by estimating the position of the/I/-/t/phoneme boundary along a first formant (F1) continuum. Shifts in the phoneme boundary were calibrated against hifts produced by physical changes inthe level of the 500-Hz component. When the 500-Hz component was presented contralateral tothe r...

absolute prime: a prime that remains prime for all permutations of its digits. E.g., 199, 919 and 991 are all prime. Goal: definitions balanced with curio info. almost-all-even-digits prime: a prime with all even digits except for one odd right-most digit. E.g., 666 · 10 + 1. almost-equi-pandigital prime: a prime with all digits equal in number, except for one particular digit. E.g., (109876543...

A field experiment was conducted to assess the optimum inter- and intra-row spacing on growth, yield and yield component of Roselle (Hibiscus sabdariffa L.) in 2014/15 cropping season at Wondo Genet Agricultural Research Center experimental site (at Wondo Genet station). Two inter-row spacing (60 and 90 cm) and three intra-row spacing (30, 60 and 90 cm) were evaluated using two varieties, WG-Hi...

We have recently reported that inactivation of the p16 gene by mutation and deletion is common in nasopharyngeal carcinoma (NPC). The present study demonstrates that hypermethylation of the 5' CpG island can serve as an alternative mechanism for inactivation of the p16 gene in this tumor. Using Southern blotting analysis and multiplex PCR, aberrant methylation of the 5' CpG island of the p16 ge...

Environmental contaminations resulting from mining operations play an important role in the collapse of ecosystems balance. In order to measure vegetation characteristics and to study soil and plant contamination in rangelands surrounding bauxite mine, a systematic random sampling was done according to physiognomy and homogeneity of vegetation cover. Sampling was performed using a 50-meter tran...