نتایج جستجو برای: conventional breeding

تعداد نتایج: 316237  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت دبیر شهید رجایی - دانشکده علوم انسانی 1392

this study investigated the impact of explicit instruction of morphemic analysis and synthesis on the vocabulary development of the students. the participants were 90 junior high school students divided into two experimental groups and one control group. morphological awareness techniques (analysis/synthesis) and conventional techniques were used to teach vocabulary in the experimental groups a...

2017
Adama Zongo Pawan Khera Mahamadou Sawadogo Yaduru Shasidhar Manda Sriswathi Manish K. Vishwakarma Philippe Sankara Bonny R. Ntare Rajeev K. Varshney Manish K. Pandey Haile Desmae

Groundnut (Arachis hypogaea L.) is an important oilseed and food crop of the world. Breeding for disease resistance is one of major objectives in groundnut breeding. Early leaf spot (ELS) is one of the major destructive diseases worldwide and in West Africa, particularly in Burkina Faso causing significant yield losses. Conventional breeding approaches have been employed to develop improved var...

2011
Ghaffar Kiani

Marker aided selection (MAS) can be used for monitoring the presence or absence of genes in breeding populations and can be combined with conventional breeding approaches. In this study, crosses between two high yielding cultivars, Neda and Nemat with local aromatic varieties Sang tarom and Tarom deylamani were made followed by phenotypic selection for desirable individual plants in F2 populati...

2008
Bill Curran

Commercial corn breeding and trait integration have changed modern corn production. In recent years, technology advances for control of insects, weeds, and diseases have improved corn yield levels significantly. Conventional breeding continues to be the foundation of new inbreds (parent lines) for hybrid development. Another method of inbred development is called doubled haploids. This methodol...

2008
R. PRATT S. GORDON P. LIPPS G. ASEA G. BIGIRWA K. PIXLEY

Maize (Zea mays) production in sub-Saharan Africa is constantly threatened by the potential outbreak of multiple foliar diseases such as maize streak, northern leaf blight, gray leaf spot, and rust. Improvement of host resistance to these diseases can provide an important component of integrated pest management (IPM). In this paper, conventional and molecular marker-assisted breeding approaches...

Journal: :Laboratory animals 1982
R L McEwin T Smith R W Barrell

The cage was designed for holding and breeding rabbits, and can also be used for holding cats for short periods. Single cages can be joined back to back: this larger cage can also be used for breeding rabbits, and the longer-term holding of cats. When not in use cages fold into compact units, saving storage space and labour, as many cages may be autoclaved, boiled or steamed at once. Repair, ma...

2011
Kurita Manabu Watanabe Atsushi Konagaya Ken-ichi Tsubomura Miyoko Hirao Tomonori Ishii Katsuaki Taniguchi Toru

Background Cryptomeria japonica D. Don (sugi) is one of the most important Japanese conifer species. Rapid improvement of the wood trait (e.g., growth speed and wood quality) using a conventional breeding approach is not possible, because breeding of coniferous tree requires a very long time. Genetic modification might be a powerful tool to shorten the time needed to breed trees compared with t...

Journal: :journal of plant molecular breeding 2014
saumya awasthi jai prakash lal

literatures have reported that a lot of drought related genes were cloned and individual gene showed positive effects under controlled stress experiments, but were not much effective in the field. although, the progresses by conventional breeding approaches were achievable as some drought varieties have been released to the farmers in the recent years but this is not adequate to cope up with th...

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2008
Bertrand C Y Collard David J Mackill

DNA markers have enormous potential to improve the efficiency and precision of conventional plant breeding via marker-assisted selection (MAS). The large number of quantitative trait loci (QTLs) mapping studies for diverse crops species have provided an abundance of DNA marker-trait associations. In this review, we present an overview of the advantages of MAS and its most widely used applicatio...

2007
FOLTYS DE GARCIA

Adaptation of medicinal and aromatic plants to contemporary quality and technological demands by breeding: aims, methods and trends. Breeding has become one of the most important key factors for improvement of the MAP branch because the genotypes can be adapted to the special demands of the players in the production chain and contribute to high quality, profitable and sustainable production. Th...

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