نتایج جستجو برای: crown diameter

تعداد نتایج: 129405  

Journal: :علوم گیاهان زراعی ایران 0
رضا محمدی محمد مهدی مجیدی مجتبی خیام نکویی آقافخر میرلوحی

tall wheat grass (agropyron elongatum), as many other grasses, benefits from wide genetic bases in iran. estimation of genetic diversity and a selection of suitable genotypes is the initial step for developing adaptable synthetic varieties in many cool season grasses. in order to investigate production, variation and genetic similarity of 25 tall wheat grass genotypes, an experiment was conduct...

Journal: :تولید گیاهان زراعی 0

orchard grass (dactylis glomerata), a pasture and forage grass, has wide genetic distribution in iran. evolution of germplasm and selection of suitable genotypes is the first step for developing adaptable synthetic varieties. in order to investigate production potential, variation and genetic similarity of iranian orchard grass genotypes, an experiment was conducted using clonally propagated ma...

Journal: :Health technology assessment 2003
N J Wald C Rodeck A K Hackshaw J Walters L Chitty A M Mackinson

The matching criteria were gestation (using an ultrasound crown–rump length or biparietal diameter measurement), duration of storage, and centre. Screening performance of the individual markers and combinations of markers together with maternal age was assessed using standard methods. In addition pairs of first and second trimester serum samples from 600 controls were tested to secure a larger ...

In order to investigate the effect of different levels of water stress on Satureja hortensis, a completely randomized design (CRD) with four replications was carried out in the greenhouse of Yazd University in 2014. The water stress treatments including 100, 75, 50 and 25 Percent of field capacity (FC) were applied. The results showed that water deficit stress significantly (p<0.01) decreased p...

     Selenium has a protective and positive effect on the quantitative and qualitative characteristics of the plants. In order to investigate the effect of selenium foliar application on leaf proline content and some quantitative and qualitative characteristics of rapeseed cultivars under end-season thermal stress, a factorial split plot experiment was conducted in a randomized complete block d...

Journal: :crop breeding journal 2013
e. ganji moghaddam h. ahmadi moghaddam s. piri

this study was conducted with the main purpose of investigating genetic variation among 13 selected sweetcherry (prunus avium cv. siah mashhad) genotypes, i.e., the most important iranian sweet cherry cultivars based on their pomological, morphological, and phonological characteristics. the experiment was laid out in a randomized complete block design with three replications at khorasan-e-razav...

Journal: :علوم باغبانی ایران 0
حسین محمدی دانشجوی سابق کارشناسی ارشدپردیس کشاورزی ومنابع طبیعی دانشگاه تهران لیلا تبریزی استادیار پردیس کشاورزی ومنابع طبیعی دانشگاه تهران رضا صالحی استادیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران

the effect of different ratio of vermicompost (0, 10, 20, 30, 40 & 50 %) in two type of substrate (coco peat and coco peat-perlite (50:50 v:v)) on growth characteristics of gooseberry (physalis peruviana l.) seedling was investigated in research greenhouse of university of tehran, in 2013. a factorial experiment based on completely randomized design with four replications was carried out. crite...

2006
Timothy Wilmot

Can fertilization of sugar maple stands lead to increased diameter growth, better crown conditions, and/or added sugar production? We have wrestled questions like these for over a decade at research sites in northwest Vermont. Recently we have begun to expand our understanding of maple nutrition by examining stands in a wider geographic area. The effectiveness of fertilization depends in large ...

In this study 30 coppice oak trees(Quercus brantii Lindl.) with least diameter of 5 centimeteres were chosen with random classification. Characteristics such as the number of sprouts, the diameter, total height, and the large and small diameter of crown were measured. For this purpose, the diameter ranges of the oak trees were devided into 5 cm classes and at least the growth factors of 3 trees...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید