to assess the radiation use efficiency (rue) of different rice cultivars under transplanting (tp) and direct-sowing (ds) systems and scrutiny of weed effect, a split-plot factorial experiment was conducted based on a randomized complete block design with three replications in 2011 at haraz extension and technology development center in mahmoudabad city, mazandaran. the main plots were two plant...

drought stress is one of the phenomena that adversely affects growth and quality of plants, with turfgrass being no exception. for a study of the responses of poa pratensis l. cv. ’barimpala‘ to time periods of drought stress, turfgrass seeds were cultivated at 60cm depths in cylindrical pots of 15cm diameters and placed outdoors. plants were daily irrigated to the point until drainage occurred...

decreasing irrigation via partial root zoon drying (prd) save water and decreased production expenses. for comparing common irrigation and prd on tomato cv. falcato an experiment was designed in massey university of new zealand. treatments were control (irrigation in a field capacity in each irrigation to whole root zoon) and prd (irrigation in a half of field capacity in each irrigation to one...

progestagens have been used in order to control follide wave dynamics in camelids, however, the results are contra versial.the purpose of this study was to investigate the effect of single norgestomet implant on ovarian follicle development in bactrian camel. bactrian camels (n=8; 6-14 years old) were assigned randomly to two groups. norgestomet treated group (n=4) received one implant of norge...

the aim of the peresent study was to find the optimum weaning time to shift pikeperch larvae feeding from live food to the artificial feed. in this experiment, pikeperch larvae were fed with seived pond zooplankton (mainly rotifers) and artemia nauplii from the first feeding day to day 16 of post-hatching. then three weaning times were used on day 16 (w16), day 22 (w22), and day 28 (w28) of pos...

this experiment was conducted in andimeshk region (north of khouzestan) to study the effects of nitrogen levels on plant characters of  two potato cultivars (solanum tuberosum l.) in identical conditions of poultry manure, in 2012-2013 crop year, as a factorial randmaized complete block design with three replications. the first factor was consisting of four nitrogen levels (0, 70,140 and 210 kg...

This study explores the impact of a tabletop-generated feedback on student’s collaborative skills over time. Twenty-one Computer Science students participated in a threeweek experimentation. A two-group design was used to assess three dimensions of collaboration: contributions, communication and respect. While the experimental group was asked to solve a database design problem using a tabletop ...