نتایج جستجو برای: annual plants
تعداد نتایج: 304538 فیلتر نتایج به سال:
The production of two or more seed types by a single plant is known as seed heteromorphism. There have been many comparisons of seed traits or growth between plants grown from heteromorphic seeds. However, information is scarce regarding the mineral contents of adult plants from heteromorphic seeds. We herein present biomass and mineral profiles of adult plants grown from dimorphic seeds (non-d...
Recently Keppler et al. (2006) discovered a surprising new source of methane – terrestrial plants under aerobic conditions, with an estimated global production of 62– 236 Tg yr−1 by an unknown mechanism. This is ∼10–40% of the annual total of methane entering the modern atmosphere and ∼30–100% of annual methane entering the preindustrial (0 to 1700 AD) atmosphere. Here we test this reported glo...
PREMISE OF THE STUDY Few previous studies have considered how plant age affects photosynthetic physiology in herbaceous perennials or how photosynthetic capacity in annual cereals compares to perennial relatives. Newly developed perennial cereals offer novel systems for addressing these questions. Our study makes a novel contribution by considering how life history differences affect photosynth...
Tree size and its relationship with flowering phenology and reproductive output in Wild Nutmeg trees
Reproductive strategies, sexual selection, and their relationship with the phenotype of individuals are topics widely studied in animals, but this information is less abundant for plants. Variability in flowering phenology among individuals has direct impact on their fitness, but how reproductive phenology is affected by the size of the individuals needs further study. We quantified the floweri...
The State of Rio Grande do Sul (RS) is the largest producer of oat in Brazil with the aid of consolidated breeding programs, which are constantly releasing new cultivars. The main objectives of this study were to: 1) evaluate the annual genetic progress in grain yield and hectoliter weight of the oat cultivars in RS, with and without fungicide use on aerial parts of plants; and 2) evaluate the ...
in order to study and compare the phosphate transporter gene codon usage and it's respond to the traits like salt tolerance, day length, pollination and temperature in different plants, 100 isoform from 10 plants are extracted from ncbi website and then analyzed with gene infinity and minitab 16 software. the result shows that the highest codon usage similarity (81.95%) was for wheat and oryza ...
Making targeted subsidies and the process of releasing energy market and specified criteria for the quality of energy delivered to consumers shows the necessity for the explanation of energy production in Iran. In the meantime, thermal power plants produce about 85% of electricity in Iran. Steam and gas turbine power plants have created the vast capacity of power generation in thermal plants, b...
BACKGROUND Transparent calculation methods are crucial when investigating trends in antimicrobial consumption over time and between populations. Until 2011, one single standardized method was applied when quantifying the Danish pig antimicrobial consumption with the unit "Animal Daily Dose" (ADD). However, two new methods for assigning values for ADDs have recently emerged, one implemented by D...
Alpine meadow ecosystems are susceptible to climate changes. Still, climate impact on cuticular wax in alpine meadow plants is poorly understood. Assessing the variations of cuticular wax in alpine meadow plants across different latitudes might be useful for predicting how they may respond to climate change. We studied nine alpine meadows in a climate gradient in the east side of Qinghai-Tibeta...
Sweden received about 5 % of the total release of (137)Cs from the Chernobyl nuclear power plant accident in 1986. The distribution of the fallout mainly affected northern Sweden, where some parts of the population could have received an estimated annual effective dose of 1-2 mSv per year. It is disputed whether an increased incidence of cancer can be detected in epidemiological studies after t...
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