نتایج جستجو برای: germination rate index

تعداد نتایج: 1324893  

Ghodrat Alah Heidary Hamid Reza Saeedi Goraghani Mojtaba Solaimani Sardo

Considering forage grass species, germination is one of the important stagesconcerning the growing stage that is often influenced by environmental stresses,particularly salinity and drought stresses. Thus, this study aims to assess the effects ofsalinity and drought stresses on germination characteristics and seedling growth of desertwheatgrass, Agropyron desertorum (Fisch. ex Link) Schult. in ...

Journal: :پژوهش های حبوبات ایران 0
علی گنجعلی پروانه ابریشم چی مریم شوریابی

introduction salinity has various effects on plant growth by affecting physiological processes. the decline in plant productivity under saline condition, frequently linked with the reduction of photosynthetic capability. it has been reported that efficiency of psii photochemistry (fv/fm) of numerous plant species have been decreased due to salt stress studies have shown that salicylic acid (sa...

2014
Tejinder Pal Khaket Viney Kumar Jasbir Singh Suman Dhanda

Triticum vulgare (Wheat) based products are the major dietary source of food in developing countries. In India, it grows in association with boundary plantations of Populus deltoids (poplar). During winter, poplar enters in dormancy which cause a heavy leaf fall at the time of wheat seed germination. Large number of poplar senescence leaves may adversely affect the wheat. Therefore, the present...

2013
Xue Xiao Lina Sha Xing Fan Yonghong Zhou

To determine the effect of salt stress on seed germination of Leymus species, seeds of Leymus racemosus (Lam.) Tzvel., Leymus angustus (Trin.) Pilger, Leymus multicaulis (Kar. et Kir.) Tzvel., Leymus duthiei (Stapf) Y. H. Zhou et H. Q. Zhang and Leymus secalinus (Georgi) Tzvel. were treated with NaCl solutions of different concentration: 0 mmol/L, 100 mmol/L, 200 mmol/L, 300 mmol/L, 400 mmol/L ...

2013
H. Hamidi

Drought is one of the most important natural phenomenon which affects on plant growth. Alfalfa (Medicago sativa L.) is an essential fodder product which has extensive and depth roots system, this advantage enables the plant to tolerate long term drought without any damage to its regrowth process. In order to measure germination percentage and rate, root and shoot growth of 6 alfalfa cultivars (...

Journal: :journal of agricultural science and technology 2014
s. mahmood m. usman

present study examines whether there is any beneficial effect of magnetized water application on seedling emergence of maize seeds. water from various sources like tap water, saline water (1,500 ppm), canal water, and sewerage water was treated magnetically by passing it through 235 mt magnetic fields at 3 lpm flow rate. seeds were soaked in water for 24 hours and planted in sand culture. numbe...

Bromus danthoniae Trin. is an annual grass species that is well adapted to harsh climates and could be considered as an important genetic resources for tolerance to environmental stresses such as salinity. In this study, 24 genotypes collected from Ilam, Kurdistan, Kermanshah (non-saline areas) and West Azerbaijan (saline area: shores of Uremia Salt Lake) provinces of Iran were investigated at ...

Extended abstract Introduction: Seed deterioration is associated with oxidative stress and uncontrolled accumulation of reactive oxygen species. Seeds have a group of enzymatic and non-enzymatic antioxidants that protect them against reactive oxygen species and help maintain seed vigor and support seed germination processes. The response of different cultivars to seed deterioration is differen...

Journal: :journal of herbal drugs (an international journal on medicinal herbs) 2012
fatemeh cheraghi sohrab mahmoodi majid jami alahmadi sohayl parsa

background & aim: because of seed germination ability of medicinal plants seed is low and, generally exposed to problem. priming is one of the techniques that help seeds to be germinated faster and uniformly. experimental: a laboratory experiment was carried out on germination and growth improvement in heracleum persicum desf.  by seed osmo-primming in seed technology laboratory ...

Extended abstract Introduction: Seed germination is one of the first important and complex stages in the plant life cycle and is affected by many hereditary and environmental factors. Various factors affect germination and seedling establishment. Among these factors are the characteristics of the maternal plant (nutrition, genetics), seed treatment stage at harvest time, as well as environment...

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