نتایج جستجو برای: germination percentage

تعداد نتایج: 155672  

Drought cause yield loss of soybean production is the major reason to yield losing of soybean. To improve the germination and growth of soybean seeds under drought stress; We studied the effect of the single walled carbon nanotubes (SwCNTs) material in seed germination and the physiological changes occurred under drought condition, performed SwCNTs treatments in soybean (Zhonghuang 35) seeds at...

Journal: :به زراعی کشاورزی 0
امیرحسن خدابخشی ‏ کارشناس ارشد، گروه زراعت، دانشکدۀ تولید گیاهی، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران بهنام کامکار دانشیار، گروه زراعت، دانشکدۀ تولید گیاهی، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران نفیسه خلیلی کارشناس ارشد، گروه زراعت، دانشکدۀ تولید گیاهی، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران

this study was conducted to quantify germination response of annual savory (satureja hortensis l.) to temperature and water potential. for this purpose, seeds were exposed to different temperature (12, 15, 20, 25, 30, 35, 37 and 40°c) and water potential (zero, -0.1, -0.3, -0.5 and -0.7 mpa) treatments in seed research lab., gorgan university of agricultural sciences and natural resources in 20...

Extended Abstract  Introduction: Germination is considered the first and most important stage of establishment and consequently, successful competition which is influenced by genetic and environmental factors. Among the environmental factors influencing the germination, temperature and light are the most important ones. Using different models, the germination response of seeds to temperature c...

2011
FRANCISCO CARLOS KRZYZANOWSKI JAMES CURTIS DELOUCHE

The effect of constant temperature on the germination rate and percentage of two cotton seed lots was determined using a thermogradient plate. A gradient of 10 oC to 40 oC was established across the plate so that temperatures changed 2 oC for each 5 cm increment in length, resulting in sixteen different temperature treatments. The optimal temperature zone for germination was 28 oC to 30 oC. As ...

Journal: :Journal of environmental biology 2011
M A Hakim Abdul Shukor Juraimi M M Hanafi A Selamat Mohd Razi Ismail S M Rezaul Karim

An investigation was made to see the salt tolerance of 10 weed species of rice. Properly dried and treated seeds of weed species were placed on 9 cm diameter petridishes lined with Whatman No. 1 filter paper under 6 salinity regimes, viz. 0 (control), 4, 8, 16, 24 and 32 dS m(-1). The petri dishes were then kept in germinator at 25 +/- 1.0 degrees C and 12 hr light. The number of germinated see...

Ali Salehi Sardoei, Behnam Azizi Gerdeh Morteza Sabaee Fazel Mostafa Nik zad Mostafa shahvardi

The response of tomato genotype Cal-ji  against five salinity levels (distilled water as control, 25, 50, 75 and 100 mM) were studied at germination and early seedling stages. An experiment with conducted by using a completely randomized design (CRD) with three replications. Shoot and root length, shoot and root fresh weight, seed vigor, mean germination time, germination percentage an...

Journal: :علوم گیاهان زراعی ایران 0
رامین عالیوند دانشجوی کارشناسی ارشد رضا توکل افشاری استاد، پردیس کشاورزی و منابع طبیعی کرج، دانشکده علوم زراعی و دامی، گروه زراعت و اصلاح نباتات، تخصص: علوم و تکنولوژی بذر فرزاد شریف زاده دانشیار، پردیس کشاورزی و منابع طبیعی کرج، دانشکده علوم زراعی و دامی، گروه زراعت و اصلاح نباتات، تخصص: تکنولوژی بذر

one of the most important oilseed plants in iran is rapeseed. seed quality is affected by deterioration and aging during storage. the purpose of this study was to evaluate the roles of various chemicals on the recovery of germination characteristics in deteriorated seeds of rapeseed. in this study, one commercial brassica napus cultivar (okapi) was used. this experiment had two parts. in the fi...

DOR: 98.1000/2383-1251.1397.5.101.9.1.1578.1610 Extended abstract  Introduction: Stevia is a perennial short day plant, belonging to the Asteraceae family. It is also called sugar leaf. Poor germination of this plant serves as a barrier for its planation on a large scale, which contributes to its scarcity and expensivenss as a medicinal herb. In many plants, seed germination is sensitive...

Journal: :پژوهش های زراعی ایران 0
راهله رهباریان رمضانعلی خاوری نژاد علی گنجعلی عبدالرضا باقری فرزانه نجفی

in order to study, the effects of drought stress on germination and seedling growth of chickpea genotypes, experiments were carried out on two susceptible genotypes (mcc68, mcc448) and two resistant genotypes (mcc392, mcc877). in the first experiment the seeds were sown under different levels of drought stress (0,-0.4,-0.8,-1.2mpa) in 25◦c at the growth chamber with 4 replication. the results s...

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