Dissemination of Phlox
نویسندگان
چکیده
منابع مشابه
The origin of novel flavonoids in Phlox allotetraploids.
The flavonoids of two diploid species of Phlox and two of their allotetraploid derivatives were characterized. The tetraploids accumulate five flavonoids not observed in the parental species. Generally, novel compounds are less highly glycosidated than, but otherwise similar to, parental compounds that they partially or totally replace. We propose that hybridity and polyploidy have repressed or...
متن کاملLibrary and dissemination of health information
Purpose: The aim of this research is to determine the role of public and academic libraries in disseminating of health information and comparing of the two types of libraries with each other. Method: The research method is applied with descriptive-survey. The sample size was determined by using the Morgan table, 379 people. The questionnaires were distributed using Quotas sampling method. ...
متن کاملGenomic evidence of gene flow during reinforcement in Texas Phlox.
Gene flow can impede the evolution of reproductive isolating barriers between species. Reinforcement is the process by which prezygotic reproductive isolation evolves in sympatry due to selection to decrease costly hybridization. It is known that reinforcement can be prevented by too much gene flow, but we still do not know how often have prezygotic barriers evolved in the presence of gene flow...
متن کاملMultiyear Population Dynamics of Ditylenchus dipsaci Associated with Phlox subulata.
Field population densities of Ditylenchus dipsaci associated with shoot tissue of Phlox subulata were monitored during two consecutive growing seasons and intervening periods of overwintering and plant storage. The population density increased significantly through four peaks during the first growing season, and decreased significantly during storage at 5-7 C or overwintering in the field. Duri...
متن کاملWorking Effectiveness of Dissemination Channels as Perceived by Potato Growers
A research can also reveal the cooperative effectiveness of agencies such as evaluation will lead to discover the weakness and strengths for further improvement of this program. The present study was designed in 2009 especially to see the effectiveness of the working of agricultural extension staff as perceived by farmers in district Okara-Pakistan. The data were collected with the help of a sp...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Science
سال: 1883
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.ns-2.36.496-b