نتایج جستجو برای: ecology of germination
تعداد نتایج: 21170535 فیلتر نتایج به سال:
The subject of this research is linguistic (or: language) audit. The term is new and not being widely used so far. Linguistic audit, in particular, is offered as a service of linguistic-consulting agencies’ activities. Modern linguistic consulting, according to the author, is a form of stimulating theoretical and practical development of linguistic ecology, a new branch of applied linguistics, ...
BACKGROUND AND AIMS Temperate forests are disjunct in the Northern Hemisphere, having become fragmented from the earlier widespread (Tertiary) boreotropical forest. We asked 'What are the contemporary patterns of population variation in ecological traits of a Tertiary relict in a macroecological context?'. This issue underpins our understanding of variation in populations occurring in the same ...
This paper discusses how field and laboratory experiments, using a variety of genetic material, can be combined to investigate the genetic basis of germination under realistic ecological conditions, and it reviews some of our recent work on germination phenology of Arabidopsis thaliana in the field. Our results indicate that the genetic basis of germination depends on the environment. In partic...
this study was conducted to investigate the effects of different temperatures on seed germination of plantago ovata and also to evaluate cardinal temperatures. various constant temperatures (5, 10, 15, 20, 25, 30 and 35ºc) were conducted in a completely randomized design with four replications. the germinated seeds were counted every day and the rate of germination percentage, cumulative germin...
This report presents preliminary information on Pachystegia rufa and allied species; the so-called Marlborough rock daisies, here referred to collectively as pachystegias. The report is based on field and experimental information gathered by the author since 1978, and additional data derived from joint studies of seed set and germination, cytology and flavonoid chemistry. Field visits have been...
Current research has determined that traits involved in reproductive strategies and processes of seed dynamics should be studied together, and under varying environments, in order to clarify their roles in the ecology of plant communities. Here, we analyzed reproductive traits (allocation to reproduction, efficiency of seed production, and seed size) at the community level and their relationshi...
Context Germination is a vulnerable life stage for plants, therefore understanding the dynamics of seed ecology essential to guiding management recommendations highly invasive weeds. Aim We addressed knowledge gap how seeds contribute invasion process European blackberry (Rubus anglocandicans), threatening weed across riparian ecosystems south-western Australia. Methods performed mechanical, ch...
In order to study the effect of seaweed extract and nano-ZnO on germination characteristics of tomato seed, a factorial experiment was conducted based on a randomized complete block design. Preliminary germination and seedling growth tests were performed to determine the best concentration of seaweed extract and nano-ZnO. Experimental treatments included three levels of drought stress (0, 2- an...
In order to study drought stress effect at the reproductive stage on seed germination characteristics of seven rice genotypes, an experiment was carried out at Sari Agricultural Sciences and Natural Resources University in 2014. This study was conducted on drought-stressed seeds and seeds grown under normal conditions. The results of orthogonal mean comparison among non-stressed seeds showed th...
Extend abstract Introduction: Guava (Psidium guajava L.) is one of the most important fruit crops of tropical and subtropical regions. Guava (Psidium guajava L.) can be propagated by seed, layering, grafting, cutting or tissue culture. Propagation by seed is used for the production of seedlings usable in breeding programs or rootstock production for grafting. Guava seeds germinate poorly and u...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید