نتایج جستجو برای: pre germination treatment

تعداد نتایج: 1674705  

2014
Li Ling Jiang Jiafeng Li Jiangang Shen Minchong He Xin Shao Hanliang Dong Yuanhua

Effects of cold plasma treatment on soybean (Glycine max L. Merr cv. Zhongdou 40) seed germination and seedling growth were studied. Seeds were pre-treated with 0, 60, 80, 100 and 120 W of cold plasma for 15 s. Results showed that plasma treatments had positive effects on seed germination and seedling growth, and treatment of 80 W had the highest stimulatory effect. Germination and vigor indice...

Journal: :journal of rangeland science 2015
marzieh asgari mohsen nasiri ali ashrafe jafari leila flah hoseini

to study the effects of chilling on dormancy breaking and the increased germination characteristics of nepeta (germination percent and speed, seedling length, vigor index, wet and dry weight), a factorial experiment in a completely randomized design with 4 replications was implemented in a laboratory in 2014. factor a was the chilling treatment in three levels (control, one-month and two-month ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده ادبیات و زبانهای خارجی 1393

abstract listening is a key and main tool in second language skill and its development is of prime concern to teachers and learners. furthermore, the application of technology in language classrooms has become more commonplace in the last fifty years. computer and the internet have made foreign language materials easy to access and use. so, the present study is an attempt to examine the effec...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده زبانهای خارجی 1392

the present study was an attempt to compare the effect of peer metalinguistic corrective feedback on elementary and intermediate efl learners speaking ability to see which level benefits more from this type of feedback. to this end, 117 female efl learners at grade 3, al-zahra high school in kermanshah, iran were non-randomly chosen. the homogeneity of the participants was attained through a pi...

Journal: :Wahana Forestra: Jurnal Kehutanan 2023

Johar (Cassia siamea Lamk) seeds have physical dormancy, because the entry of water and gases prevents by hard seed coat in process germination. Therefore, to assist germination process, pre treatment form scarification is needed, among others using sulfuric acid (H2SO4) solution. This study aims analyze effect soaking H2SO4 with 96% concentration on johar The used a completely randomized desig...

2014
Juanjuan Fu Yongfang Sun Xitong Chu Yuefei Xu Tianming Hu

The protective effects of 5-aminolevulenic acid (ALA) on germination of Elymus nutans Griseb. seeds under cold stress were investigated. Seeds of E. nutans (Damxung, DX and Zhengdao, ZD) were pre-soaked with various concentrations (0, 0.1, 0.5, 1, 5, 10 and 25 mg l(-1)) of ALA for 24 h before germination under cold stress (5°C). Seeds of ZD were more susceptible to cold stress than DX seeds. Bo...

Journal: :Acta Agriculturae Slovenica 2023

Vine-leaved kitaibelia (Kitaibela vitifolia Willd.), also known as balkanmalva or chalice flower, is a critically endangered plant species with high risk of extinction in the wild. A reason given for this is, among others, low germination rate primarily caused by dormancy. The present study evaluated seed and seedling growth parameters vine-leaved response to eight different pre-sowing treatmen...

Journal: :Acta Scientiarum-agronomy 2023

The scarcity of surface water has led to the use underground sources as an alternative for crop irrigation by farmers in semi-arid regions. However, these generally have high salinity, which prevents agricultural production. objective this study was determine effects pre-germination treatments with plant growth regulators and bioactivators on melon seeds attenuate salt stress caused during germ...

Ali Tavili, Mahsa Mirdashtvan Masoud Yousefi Rezvan Alijani Salman Zare,

Nowadays, in many rangelands, due to over grazing, and problems that some plantshave in germination, the rate of forage production is greatly reduced. So to take advantages ofthe benefits of such plants, it is necessary to identify and remove barriers of germination andestablishment of suitable plants. The present study was designed to investigate differenttreatments of breaking dormancy and st...

2008
Laila M. Karlsson Per Milberg

To understand germination timing in an ecological context, the response to environmental events that affect seed dormancy is central, and has to be combined with knowledge of germination responses to different circumstances. In this study, seed dormancy, germination, and emergence phenology of six annual co-occurring weedy Asteraceae species were investigated. Three pre-treatments (warm and col...

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