نتایج جستجو برای: cross breeding

تعداد نتایج: 546122  

2012
L. Y. Xu F. P. Zhao X. H. Sheng H. X. Ren L. Zhang C. H. Wei L. X. Du

Marker-assisted gene pyramiding aims to produce individuals with superior economic traits according to the optimal breeding scheme which involves selecting a series of favorite target alleles after cross of base populations and pyramiding them into a single genotype. Inspired by the science of evolutionary computation, we used the metaphor of hill-climbing to model the dynamic behavior of gene ...

2013
Hafiz Azhar Ali Khan Waseem Akram Sarfraz Ali Shad Muhammad Razaq Unsar Naeem-Ullah Khuram Zia

BACKGROUND House flies are of major public health concerns in areas with poor sanitation and hygienic conditions. Unfortunately, sanitation and hygiene have always been ignored in dairy farms particularly in the developing or low-income countries. Management of these flies mostly depends on the awareness regarding associated hazards and protective measures taken by the people to minimize risks ...

Journal: :Journal of International Development 2023

This article describes the wheat-breeding work of Italian agronomist Nazareno Strampelli, who was first to cross Japanese and western wheat varieties develop high-yielding semidwarf wheat. The environmental agricultural conditions that motivated Strampelli's breeding, evolution his varieties, their role in addressing food supply problems Fascist Italy, some attitudes about improvement regime in...

1998
Michael Masser Rex Dunham

ferent species is a process called hybridization,with the offspring known as hybrids. Probably the best recognized animal hybrid is the mule,which is a cross between a female horse and a male donkey. Hybrids can have some characteristics of both parents. Breeding hybrids with selected or favored characteristics of each parent is one of the goals of animal husbandry. When a hybrid has characteri...

Journal: :The Southeast Asian journal of tropical medicine and public health 2011
B Bhaskar Rao P S Harikumar T Jayakrishnan B George

We investigated the physicochemical characteristics of Aedes albopictus Skuse viz. breeding sites, by examining coconut shells, tires and plastic containers in a chikungunya affected area of Calicut, India. The study design was a cross-sectional ecological type. Thirty-four water samples were collected randomly from coconut shells, tires and plastic containers. The larvae were counted and the w...

Journal: :Veterinary journal 2011
Sheila Crispin

This paper summarises the factors that led to the formation of the Advisory Council on the Welfare Issues of Dog Breeding and sets out some of the challenges facing the Council. Common to all types of dog is the irresponsible way in which they can be produced, purchased and owned, and the considerable welfare problems that may arise as a direct consequence of these actions. In pedigree and pure...

2013
Roberto Fritsche-Neto Marcos Deon Vilela Resende Glauco Vieira Miranda Júlio César DoVale

Genome wide selection and new methods of maize breeding The objectives of this work were to verify the accuracy of the Genome Wide Selection method (GWS) in the maize breeding for nutritional stress conditions and propose new breeding methods based on GWS. The efficiency of two components of use of nitrogen and phosphorus (absorption and utilization) was estimated in 41 single-cross hybrids ass...

2014
Junmei Wang Jianming Yang Qiaojun Jia Jinghuan Zhu Yi Shang Wei Hua Meixue Zhou

INTRODUCTION Reducing plant height has played an important role in improving crop yields. The success of a breeding program relies on the source of dwarfing genes. For a dwarfing or semi-dwarfing gene to be successfully used in a breeding program, the gene should have minimal negative effects on yield and perform consistently in different environments. METHODS In this study, 182 doubled haplo...

2014

Heritable Variation Heredity is the transmission of traits from one generation to the next. Gregor Mendel worked in the 1860s Was the first person to analyze patterns of inheritance Deduced the fundamental principles of genetics Mendel studied garden peas because they are easy to grow Come in many readily distinguishable varieties Are easily manipulated Can self-fertilize A character is a herit...

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2014
Abraham L Borker Matthew W McKown Joshua T Ackerman Collin A Eagles-Smith Bernie R Tershy Donald A Croll

Although wildlife conservation actions have increased globally in number and complexity, the lack of scalable, cost-effective monitoring methods limits adaptive management and the evaluation of conservation efficacy. Automated sensors and computer-aided analyses provide a scalable and increasingly cost-effective tool for conservation monitoring. A key assumption of automated acoustic monitoring...

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