نتایج جستجو برای: speed of germination

تعداد نتایج: 21178105  

Journal: :جنگل و فرآورده های چوب 0
بهرام ناصری اولویت بندی زمانی، بهره‏برداری جنگل، سیل‏خیزی، شبیه‏سازی سیلاب، مدل hec-hms. مسعود طبری کوچکسرایی استاد گروه جنگل داری، دانشگاه تربیت مدرس، نور، ایران

dormancy breaking of field maple (acer campestre l.) seed, by gibberllic acid (ga3) at 0, 250, 500 and 1000 ppm in 24 and 48 hours and stratification treatments in moist sand under warm (18-20 °c) and cold (2-4°c) conditions were investigated. effects of ga3 and stratification and their interaction on germination percent (gp) and germination speed (gs) were significant. the highest gp occurred ...

2012
H. R. Mehrabi M. R. Chaichi

Seed enhancement methods are applied to eliminate or decrease adverse environmental stresses effects and increase seed germination rate and vigor of rangeland plants. The aim of this study was to assess different methods of seed coating effects on germination speed of Onobrychis sativa at different sowing depths and soil moisture levels. The experiment was conducted at growth chamber to apply a...

2013
A. K. M. Aminul Islam Nurina Anuar Zahira Yaakob Jaharah A. Ghani Mohamad Osman

Six parents of Jatropha curcas were crossed in half diallel fashion, and the F 1s were evaluated to determine the combining ability for nine germination parameters. The ratio between general combining ability (GCA) and specific combining ability (SCA) variances indicated preponderance of additive gene action for all the characters except germination percentage, time of 50% germination, seedling...

ژورنال: مرتع 2021
Karimian, Vahid, Khatibi, Rasool, Saberi, Moteza,

The present study conducted to investigation the forage quality and germination status of Capparis spinosa in Niatak Hirmand rangelands. Forage quality indices were analyzed by four replications on three phenological stages (vegetative, flowering and maturity stages) randomly. The experiment included 19 treatments to improve seed germination condition. Treatments included physical such as scrap...

Journal: :international journal of agricultural management and development 2012
mohammad hossein bijeh keshavarzi

environmental stresses specially drought, play an important role in decreasing plant growth, particularly during germination in dry and semi dry area. to considering the effect of drought stress caused by polyethylene glycol on germination and characteristics of 2 spices of sesamum indicum, we had done factorial and complete accidental plot with 4 treatments and 3 times repetition. experimental...

Journal: :علوم گیاهان زراعی ایران 0
اعظم عباس نژاد ناصر مجنون حسینی رضا توکل افشاری فرزاد شریف زاده

augment of germination rate is important in seedling establishment and crop yield. a set of study in laboratory & field conditions at agronomy department of university of tehran was conducted during 2004-2005. in lab. experiment the effects of seed priming was evaluated on germination indices (germination percentage and rate) of chickpea genotypes in a factorial experiment of 4×3×2 arranged in ...

ژورنال: علوم آب و خاک 2007
علی احمدی, , کاظم پوستینی, , محسن سعیدی, , محمدرضا جهانسوز, ,

Soil moisture is one of the most important determinants of plant’s seed germination, emergence and finally yield formation in arid and semi-arid zone (e.g. IRAN). In such a situation, the selection of a cultivar resistant to drought is the most important task. In this regard, a research at three levels (Farm, Greenhouse, Laboratorial) was conducted to study 10 genotypes with three improved back...

2018
Ming Zhao Hongxiang Zhang Hong Yan Lu Qiu Carol C. Baskin

Since seed reserves can influence seed germination, the quantitative and qualitative differences in seed reserves may relate to the germination characteristics of species. The purpose of our study was to evaluate the correlation between germination and seed reserves, as well as their mobilization during germination of six grassland species (Chloris virgata, Kochia scoparia, Lespedeza hedysaroid...

Journal: :Journal of environmental biology 2011
Piyush Malaviya Anuradha Sharma

The study has been focused on effect of untreated distillery effluent (Devans Breweries Ltd., Jammu) on germination of gobi sarson (Brassica napus. L. var. Punjabi Special). Six treatments (E0.... E100) each having three replicates were made. E0 was taken as control in which tap water was used for irrigation of the plants. For E20, E40, E60, E80 and E100, different concentrations i.e. 20, 40, 6...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید