نتایج جستجو برای: agricultural traits

تعداد نتایج: 197511  

2015
Cássia de Souza Queiroz Fernando Rodrigues da Silva Denise de Cerqueira Rossa-Feres

One of the most important goals of biodiversity studies is to identify which characteristics of local habitats act as filters that determine the diversity of functional traits along environmental gradients. In this study, we investigated the relationship between the environmental variables of ponds and the functional trait diversity distribution of anuran tadpoles in an agricultural area in sou...

Journal: :Human nature 2009
Barbara Hagenah Brumbach Aurelio José Figueredo Bruce J Ellis

The National Longitudinal Study of Adolescent Health data were used to test predictions from life history theory. We hypothesized that (1) in young adulthood an emerging life history strategy would exist as a common factor underlying many life history traits (e.g., health, relationship stability, economic success), (2) both environmental harshness and unpredictability would account for unique v...

Journal: :کشاورزی (منتشر نمی شود) 0
غلام عباس کیانوش استادیار، مرکز تحقیقات کشاورزی مازندران، مازندران عنایت رضوانی خورشیدی کارشناس ارشد رشته اصلاح نباتات، دانشکده کشاورزی، دانشگاه مازندران، مازندران سید کمال کاظمی تبار استادیار، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه مازندران، مازندران

in order to study the variation of fatty acids and protein content of soybean seeds and correlated morphological and phenological traits by canonical correlation analysis, 25 genotypes were evaluated with latis square design in baieakola agricultural research station of mazandaran agricultural research center in 2001. a number of 20 agronomic and eight quality traits were measured. the variatio...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2014
Dorian Q Fuller Tim Denham Manuel Arroyo-Kalin Leilani Lucas Chris J Stevens Ling Qin Robin G Allaby Michael D Purugganan

Recent increases in archaeobotanical evidence offer insights into the processes of plant domestication and agricultural origins, which evolved in parallel in several world regions. Many different crop species underwent convergent evolution and acquired domestication syndrome traits. For a growing number of seed crop species, these traits can be quantified by proxy from archaeological evidence, ...

2010
Sofie Vandewoestijne Hans Van Dyck

BACKGROUND Past and current range or spatial expansions have important consequences on population genetic structure. Habitat-use expansion, i.e. changing habitat associations, may also influence genetic population parameters, but has been less studied. Here we examined the genetic population structure of a Palaeartic woodland butterfly Pararge aegeria (Nymphalidae) which has recently colonized ...

2018
Michael James Van Oosten Antonello Costa Paola Punzo Simone Landi Alessandra Ruggiero Giorgia Batelli Stefania Grillo

Ensuring stable crop yields in an era where climate change threatens traditional agricultural practices through altered rainfall patterns and increased urban consumption has become a vital concern in global food security. Projected freshwater availability for irrigation indicates that between 20 and 60 Mha of irrigated cropland may have to be reverted to rainfed management [57]. Formerly irriga...

Journal: :Journal of experimental botany 2014
Elena Fesenko Robert Edwards

Thirty years after the production of the first generation of genetically modified plants we are now set to move into a new era of recombinant crop technology through the application of synthetic biology to engineer new and complex input and output traits. The use of synthetic biology technologies will represent more than incremental additions of transgenes, but rather the directed design of com...

Journal: :Journal of visualized experiments : JoVE 2015
Caleb Knepper Beiquan Mou

This protocol describes a method by which a large collection of the leafy green vegetable lettuce (Lactuca sativa L.) germplasm was screened for likely drought-tolerance traits. Fresh water availability for agricultural use is a growing concern across the United States as well as many regions of the world. Short-term drought events along with regulatory intervention in the regulation of water a...

Journal: :Molecular ecology 2013
Carrie S Thurber Melissa H Jia Yulin Jia Ana L Caicedo

Convergent phenotypic evolution may or may not be associated with convergent genotypic evolution. Agricultural weeds have repeatedly been selected for weed-adaptive traits such as rapid growth, increased seed dispersal and dormancy, thus providing an ideal system for the study of convergent evolution. Here, we identify QTL underlying weedy traits and compare their genetic architecture to assess...

2012
M. A. Habib A. K. F. H. Bhuiyan M. R. Amin

The present study was undertaken to estimate the performance of some reproductive traits of Red Chittagong Cattle (RCC) is an important indigenous Farm Animal Genetic Resource of Bangladesh having some efficient reproductive capabilities. The effect of parity on these traits was also studied. The study was conducted in the nucleus herd of RCC Project at Bangladesh Agricultural University (BAU) ...

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