نتایج جستجو برای: abundance of seedlings doesn

تعداد نتایج: 21168742  

2017
Daria Rybakova Riccardo Mancinelli Mariann Wikström Ann-Sofie Birch-Jensen Joeke Postma Ralf-Udo Ehlers Simon Goertz Gabriele Berg

BACKGROUND Although the plant microbiome is crucial for plant health, little is known about the significance of the seed microbiome. Here, we studied indigenous bacterial communities associated with the seeds in different cultivars of oilseed rape and their interactions with symbiotic and pathogenic microorganisms. RESULTS We found a high bacterial diversity expressed by tight bacterial co-oc...

Journal: :Plant physiology 2001
Z Gong H Koiwa M A Cushman A Ray D Bufford S Kore-eda T K Matsumoto J Zhu J C Cushman R A Bressan P M Hasegawa

Repetitive rounds of differential subtraction screening, followed by nucleotide sequence determination and northern-blot analysis, identified 84 salt-regulated (160 mM NaCl for 4 h) genes in Arabidopsis wild-type (Col-0 gl1) seedlings. Probes corresponding to these 84 genes and ACP1, RD22BP1, MYB2, STZ, and PAL were included in an analysis of salt responsive gene expression profiles in gl1 and ...

Journal: :ecopersia 2013
javad mirzaei hamed yousefzadeh

the aims of this study were to assess the effects of drought stress on peroxidase (pod), superoxide dismutase (sod) and catalase (cat) activities as well as free proline content and growth parameters of pistacia khinjuk seedlings under drought stress. therefore, the one-year seedlings of pistacia khinjuk subjected to water stress (25%, 50%, 75%, and 100% field capacity) for 8 months in greenhou...

Journal: :تحقیقات مهندسی کشاورزی 0
اردشیر اسدی عضو هیات علمی مرکز تحقیقات کشاورزی و منابع طبیعی اصفهان اورنگ تاکی استادیار پژوهش بخش تحقیقات فنی و مهندسی کشاورزی، مرکز تحقیقات کشاورزی و منابع طبیعی اصفهان مختار میران زاده محقق بخش تحقیقات فنی و مهندسی کشاورزی، مرکز تحقیقات کشاورزی و منابع طبیعی اصفهان محمد طهری دانشجوی رشته مکانیک ماشین های کشاورزی دانشگاه شهرکرد

a semi-automatic 9-row transplanter for bare root seedlings has recently been developed at the isfahan center for agricultural research that plants 80 seedlings/m2 using 9 operators at a capacity of 0.3 ha/d (8 h). separating a single seedling from a bunch and dropping it into a distributer cell by hand takes 1 s on average. at a density of 700-800 thousand/ha, the travel speed should not excee...

Influences on viability and germination of seeds have been studied intensively for many years, particularly for the numer-ous commercially important agricultural, ornamental, and timber species. High germinating seed lots may differ substantially in field emergence when sown at the same time in the same field, and/or may differ in performance after storage in the same environment or transport t...

Journal: Journal of Nuts 2016

Excessive salt accumulation in soil is a major ecological and agronomical problem, especially in arid and semiarid areas. Excessive soil salinity affects the establishment, development and growth of plants, resulting in major losses of production. A pot experiment was set up to examine the effects of arbuscular mycorrhizal fungus (Glomus etunicatum and Glomus versiforme) and salinity on the gro...

2014
Judit Soy Pablo Leivar Elena Monte

Seedlings growing under diurnal conditions display maximal growth at the end of the night in short-day (SD) photoperiods. Current evidence indicates that this behaviour involves the action of PHYTOCHROME-INTERACTING FACTOR 3 (PIF3) together with PIF4 and PIF5, through direct regulation of growth-related genes at dawn coinciding with a PIF3 accumulation peak generated by phytochrome-imposed osci...

A. Ganjian, A. Roohi , H. Fazli, K. Yahya, M. Vahedi, S. M. V. Farabi , W. O. Wan Maznah,

 Seasonal distribution of species composition, cell abundance and biomass of phytoplankton of the Caspian Sea were investigated in 2005. This survey were fulfilled in 6 transects and 26 stations A total of 260 samples were collected during winter to autumn in the southern part of Caspian Sea. Totally, 163 species of phytoplankton were identified (71 species Bacillariophyta, 31 species Chlorophy...

Journal: :جنگل و فرآورده های چوب 0
هادی درودی دانشجوی ‏دکتری، گروه جنگل داری دانشکدة منابع‏ طبیعی و علوم‏ دریایی دانشگاه تربیت‏ مدرس، نور، ایران ابراهیم خسروجردی استادیار مرکز تحقیقات کشاورزی و منابع طبیعی خراسان رضوی، مشهد، ایران معصومه شهابی کارشناس ‏ارشد مدیریت ‏بیابان، دانشگاه ‏علوم‏ کشاورزی و منابع ‏طبیعی گرگان، گرگان، ایران

in order to investigate the effect of root pruning in morphological and physiological characteristics of juniperus excelsa seedlings an experiment was carried out on transplanted one year-old seedlings. treatments included root pruning intensities (1-slight pruning (2-moderate pruning and 3- control (no root pruning)) .experiment design was completely randomized design. each treatment included ...

20042005200620072008200920102011201220132014201520162017201820192020202120222023050000010000001500000

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید