the considerable role of ziziphus spina christi in preserving water and soil and its resistance to heat and drought, the necessity of planting this species for afforestation and restoration of their habitats and urban green space is obvious. the aim of this study was to determine the best irrigation and seedbed treatments before planting for ziziphus spina christi seedling production. this stud...

in order to study of hydropriming and halopriming on germination and early growth stage of wheat (triticum aestivum l.) an experiment was carried out in laboratory of the department of agronomy and plant breeding, shahrood university of technology. seed treatments consisted of t1: control (untreated seeds), t2: soaking in distilled water for 18 h (hydropriming). t3: soaking in -1.2 mpa solution...

Biological fertilizers are compounds comprising various free living microorganisms that are able to change the basic nutrients into available form through biological procedures. Being an important source of nutrients in sustainable agriculture, these fertilizers lead to better seed germination and development of root system. In order to investigate the effect of biological fertilizers on the me...

in order to induce of genetic variation and selection of genotypes with desirable traits, seeds of three varieties of rapeseed sarigol (pf), rgs003 and zarfam were treated with different doses of gamma ray 500, 700 and 900 gy. to confirm the stability of the induced genetic traits, 66 mutant lines from m4 generation were studied in a randomized complete block design with three replications. twe...

for determining the oil content, seed and fruit characteristics of ethiopian jatropha provenances, the study was conducted in five regions of ethiopia namely southern nation nationalities peoples regional state, amhara region, tigria region, oromia region and benishangul gumuz regions, where jatropha is found abundantly. a total of 23 zones, 36 weredas and 40 sampling sites were considered from...

In order to examine the effect of the quantity of Nitrogen fertilizer and bush density on vegetative and productive function of henna medicinal plant (Lawsonia inermis)  factorial experimentation in the form of block plan was carried in three stages in agriculture research center in south of kerman  province in corp of 2012. The first factor containing Nitrogen fertilizer in 4 levels i...

abstract for evaluation and identification some of the chamomile species in two genera anthemis and matricaria, morphological and phonological characteristics were used. the experiment was conducted in a randomized completely blocks design (rcbd) with three replicates, sixteen quantitative and qualitative traits were evaluated such as plant height, anthodium diameter, receptacle diameter, ligul...

Based on several simplifying assumptions, a stochastic approach is developed that allows an estimation of the effects of non-regular spatial patterns of the distribution of individual plants on the mean value (K ) of trait per area. In this approach, two random variables are attached to each plant: single plant trait measurement (E) and individual space per plant (A). The latter is estimated by...