نتایج جستجو برای: main stem diameter
تعداد نتایج: 960031 فیلتر نتایج به سال:
Abstract Strong, tall and healthy stems, as well as green background by means of leaves, are very important characters in marketing of cut flowers including Lily (Lilium). Also, in order to reuse the bulbs for next crop production, they should have enough stored materials and perimeter. This investigation was conducted to evaluate the effects of different media on some vegetative characters of...
Cork porosity, due to lenticular channels, varied along the stem of Quercus suber L. Lenticular channels’ area, rather than their number, decreased upwards stem. Area decrease was observed regardless tree size and its intrinsic porosity. The cork is radially crossed by defining cork’s natural It has been suggested that porosity decreases from base upwards, but studies on such variation have not...
in solvo-hydrothermal method, xrd pattern was indicated presence of intermediate of ammonium octatmolybdate and ammonium tetramolybdate, which were changed to stble phase of ?-moo3 annealing. sem images were indicated nanoparticle with semispheical morphology and tem image was demonstrated nanoparticles with a diameter size of 25nm. also in impregnate method. the xrd pattern was shown high crys...
Stem taper data are usually hierarchical (several measurements per tree, and several trees per plot), making application of a multilevel mixed-effects modelling approach essential. However, correlation between trees in the same plot/stand has often been ignored in previous studies. Fitting and calibration of a variable-exponent stem taper function were conducted using data from 420 trees felled...
the present study was conducted to investigate the yield and some morphological characteristics of echinacea purpurea. the experiment was conducted in research farm of the ramin agriculture and natural resources university of khuzestan during 2013- 2014. the experiment was performed as a split plot factorial based on a randomized complete block design (rcbd) with four replications. the foliar a...
the establishment and survival of seedlings is one of the main objectives of forest management which ensures continues production. the aim of this article is the investigation of dead trees effect on beech and hornbeam seedlings in masal's forests. for this reason, 30 dead trees were selected, and the control trees were selected in four aspects around the dead trees. they were the same as ...
in order to study the effects of planting pattern on yield and yield components in different cultivars of forage corn (zea mays l.), an experiment was conducted at saline conditions (ec=6.43 ds.m-1) of dasht-e-malhe, neyshabour during growing season of 2009-2010. nine treatments and two furrow planting and furrow bed planting as main plots and three cultivars (ksc 704, zp 644 and ns540) as sub ...
Lesions at the bifurcation of left main stem (LM) are dangerous lesions, accounting for about 4-8% cases coronary artery disease. Therefore, there is a need study that summarizes anatomical characteristics and lesion LM to help cardiologist during procedure. By cross-sectional descriptive study, we have obtained following results: The length 4.2 ± 1.5 (mm) with diameter (mm), mean angle between...
This study investigated the effects of two organic fertilizer (compost tea and humic acid) compared to chemical on plant growth, productivity, pests predatory insects associated with eggplant Solanum melongena var. Black beauty under net house in 1st April at 2019 2020 seasons. Application fertilizers through fertigation enhanced significantly number leaves, stem fresh weight, average fruit wei...
several plant growth regulators are used to improve the quality of cut flower in bulb plants, but their effectiveness depends on genotype and plant growth conditions such as nutrition status. a pot experiment was conducted under farm condition to study benzyl adenine (ba) and potassium nitrate interaction on floret diameter, stem diameter, flower height, flower number per bulb, fresh and dry we...
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