نتایج جستجو برای: seedling parameters

تعداد نتایج: 592121  

Journal: :international journal of horticultural science and technology 2014
mohamadreza zokaee-khosroshahi mahmoud esna-ashari ahmad ershadi ali imani

this study was undertaken to identify morphological changes in young seedlings of 5 iranian almond species (prunus dulcis, p. eburnea, p. eleagnifolia, p. haussknechti, and p. scoparia) under polyethylene glycol-induced drought stress. drought stress caused a significant reduction in plant growth parameters such as fresh and dry weights of plant organs, leaf number, total leaf area, and leaf re...

2014
Landry Benoit Georges Semaan Florence Franconi Étienne Belin François Chapeau-Blondeau Didier Demilly David Rousseau

In this report, we present a 3D simulator for the numerical validation of segmentation algorithms for seedling in soil from X-ray or MRI. A 3D simulator of root in elongation is coupled to a simulator of the image acquisition to generate images of simulated seedling associated with a known synthetic ground truth. We detail how acquisition parameters of the seedling and parameters of the imaging...

Beemnet Mengesha Kassahun Zewdinesh Damtew Zigene

The investigation was conducted on wet and dry seasons of Ethiopia during the year 2012/2013 at Wondo Genet Agricultural Research Center Nursery site. Four levels of cutting size and three levels of cutting positions were arranged in randomized complete block design with three replications. Data on seedling height, branch number/seedling, root number/seedling, root weigh/seedling, root length/s...

Beemnet Mengesha Kassahun Zewdinesh Damtew Zigene

The investigation was conducted on wet and dry seasons of Ethiopia during the year 2012/2013 at Wondo Genet Agricultural Research Center Nursery site. Four levels of cutting size and three levels of cutting positions were arranged in randomized complete block design with three replications. Data on seedling height, branch number/seedling, root number/seedling, root weigh/seedling, root length/s...

Forogh Hajivand Ghassem‌abadi Hamidreza Eisvand, Omid Ali Akbarpour,

In order to study the effects of salinity stress on growth indices of three clover species including, Trifolium resupinatum, T. alexandrinum, and T. incarnatum, an experiment was conducted as factorial based on a completely randomized design arrangement with three replications. Factors included seven levels of salinity stress (0, 41, 82, 123, 164, 205, and 246 mM) and three clover species. Diff...

1991
MARIA-ESTHER PUENTE

Wild Cardon cactus seeds were inoculated with Azospirillum brasilense strains Cd and Sp-245 to improve seed germination and seedling growth parameters. Differential germination responses were related to the bacterial strain. A. brasilense Cd (the type strain for the species A. brasilense) significantly decreased seed germination. A. brasilense Sp245 (a known beneficial bacteria for cereal plant...

Journal: :تولید گیاهان زراعی 0

in order to study effect of seed weight on germination and growth of wheat seedling, an experiment in seed technology laboratory of aboureihan paradise university of tehran in 2005 has been done. in this experiment, at first stage, the seeds separated by longitude step, latitude step and set frequency parameters of gravity separator set. in second stage, 10 treatments of 1000 seed weight entere...

Journal: :مهندسی بیوسیستم ایران 0
سید مهدی حسینی محمد لغوی

a paper-pot transplanter was designed, developed and evaluated in the field by transplanting sugar beet seedlings grown in paper pots. a ground-driven counter wheel equipped with an infra-red sensor measures the traveled distance and sends the corresponding signals to a micro-controller. a step motor controlled by the micro-controller turns the driving shaft of the paper-pot metering mechanism ...

Journal: :journal of agricultural science and technology 0
m. brdar-jokanović institute of field and vegetable crops, maksima gorkog 30, 21000 novi sad, serbia. m. zorić institute of field and vegetable crops, maksima gorkog 30, 21000 novi sad, serbia. a. kondić-špika institute of field and vegetable crops, maksima gorkog 30, 21000 novi sad, serbia. i. maksimović faculty of agriculture, university of novi sad, trg dositeja obradovića 8, 21000 novi sad, serbia. b. kobiljski biogranum, research and development center, toplice milana 20, 21000 novi sad, serbia. m. kraljević-balalić faculty of agriculture, university of novi sad, trg dositeja obradovića 8, 21000 novi sad, serbia.

this study was aimed to assess the effects of excess boron on 59 genetically divergent wheat accessions and to identify those with high and stable yields under a range of soil boron concentrations. the second aim was to test the applicability of a laboratory technique performed at juvenile stages of development in estimating field boron tolerance. the study comprised a control and three boron t...

1999
JORGE CASTRO

It is generally accepted that larger seeds give rise to seedlings with better performance. On the other hand, the size that a seed reaches is genetically determined by at least two different traits ; the genetic variability of the developing embryo and the genetic variability of the maternal plant. Thus, the relative contributions of these two traits affect seedling performance by influencing s...

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