Results 31 to 40 of about 574,929 (117)

Diallel crossing in Pinus cembra : IV. Age trends in genetic parameters and genetic gain for growth and branching traits [PDF]

Annals of Forest Research, 2008
This paper reports results from a complete 10 x 10 diallel carried out in a natural population of Swiss stone pine (Pinus cembra L.) from the southern Carpathian Mountains.
Ioan Blada, Flaviu Popescu
doaj  

Assessment of Efficiency of Breeding Methods in Accelerating Genetic Gain in Rice

Agronomy
The pedigree, bulk, and single-seed descent-based rapid generation advance methods are commonly practiced breeding methods in rice. But the efficiency of these breeding methods in enhancing genetic gain has not been investigated yet.
Partha S. Biswas, R. Santelices, Rhulyx Mendoza, Vitaliano Lopena, Juan D. Arbelaez, Norvie L. Manigbas, Joshua N. Cobb, Bertrand Collard, Mohammad Rafiqul Islam   +8 more
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Progresso genético do melhoramento de arroz de terras altas no período de 1950 a 2001 Genetic progress of upland rice between 1950 and 2001

Pesquisa Agropecuária Brasileira, 2007
O objetivo deste trabalho foi quantificar o progresso genético obtido pelo melhoramento genético na cultura do arroz de terras altas, no período de 1950 a 2001. Foram feitos quatro experimentos de campo, nas localidades: Aeroporto e Agronomia, em Viçosa,
Moacil Alves de Souza, Orlando Peixoto de Morais, Roberto Evaristo Celi Herán, Adeliano Cargnin, Pimentel Adérico Júnior Badaró   +4 more
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Concurrent enhancement of provitamin A and yield in tropical maize hybrids

Frontiers in Plant Science
Maize is a strategic food crop in sub-Saharan Africa, where vitamin A deficiency affects millions. Significant investments have thus focused on developing maize varieties that provide 50% of the daily vitamin A requirement for vulnerable populations ...
Abebe Menkir, Ibnou Dieng, Silvestro Meseka, Bussie Maziya-Dixon, Bunmi Bossey, Oyekunle Muhyideen, Manfred Ewool, Mmadou Coulibaly, Wende Mengesha   +8 more
doaj   +1 more source

Evolution of Sweet Potato (Ipomoea batatas [L.] Lam.) Breeding in Cuba

Plants
This study analyzed the genetic progress of sweet potato (Ipomoea batatas) breeding in Cuba over the past 50 years by field trials comparing traditional and improved varieties.
Alfredo Morales, Peiyong Ma, Zhaodong Jia, Dania Rodríguez, Iván Javier Pastrana Vargas, Vaniert Ventura, José Efraín González, Orelvis Portal, Federico Diaz, Oscar Parrado Alvarez, Carina Cordero, Xiaofeng Bian   +11 more
doaj   +1 more source

Controlling Coancestry and Thereby Future Inbreeding by Optimum-Contribution Selection Using Alternative Genomic-Relationship Matrices

Frontiers in Genetics, 2020
We tested the consequences of using alternative genomic relationship matrices to predict genomic breeding values (GEBVs) and control of coancestry in optimum contribution selection, where the relationship matrix used to calculate GEBVs was not ...
G. T. Gebregiwergis, Anders C. Sørensen, Mark Henryon, Mark Henryon, Theo Meuwissen   +4 more
doaj   +1 more source

Validation of KASP Markers Associated with Hydrogen Cyanide in Fresh Cassava Roots in Uganda Cassava Germplasm

Agronomy
Low hydrogen cyanide (HCN) concentration is a high-priority trait for cassava varieties targeting their fresh and dry product profiles. To be acceptable, varieties bred and developed for these market segments must meet international safety standards for ...
Michael Kanaabi, Settumba B. Mukasa, Ephraim Nuwamanya, Paula Iragaba, Julius Karubanga Baguma, Ann Ritah Nanyonjo, Henry Wagaba, Nicholas Muhumuza, Fatumah Babirye Namakula, Enoch Wembabazi, Alfred Ozimati, Ismail Siraj Kayondo, Williams Esuma, Robert S. Kawuki   +13 more
doaj   +1 more source

Persistency of Prediction Accuracy and Genetic Gain in Synthetic Populations Under Recurrent Genomic Selection

G3: Genes, Genomes, Genetics, 2017
Recurrent selection (RS) has been used in plant breeding to successively improve synthetic and other multiparental populations. Synthetics are generated from a limited number of parents ( Np ) , but little is known about how Np affects genomic ...
Dominik Müller, Pascal Schopp, Albrecht E. Melchinger   +2 more
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TENDÊNCIAS GENÉTICAS PARA CARACTERÍSTICAS DE CRESCIMENTO EM REBANHOS NELORE CRIADOS NA REGIÃO DO TRÓPICO ÚMIDO DO BRASIL

Ciência Animal Brasileira, 2013
(Co)variances, heritability and genetics change were estimated for weight at 120 (W120), 210 (W210), 365 (W365), 450 (W450) and 550 (W550 ) days of age in Nellore cattle from the Humid Tropical region of Brazil. A total of 65,876 records of animals born
Thaymisson Santos de Lira, Leonardo de Sousa Pereira, Fernando Brito Lopes, Jorge Luis Ferreira, Raysildo Barbosa Lôbo, Geneíldes Cristina de Jesus Santos   +5 more
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Genetic trends in the Zimbabwe’s national maize breeding program over two decades

Frontiers in Plant Science
Monitoring genetic gains within breeding programs is a critical component for continuous improvement. While several national breeding programs in Africa have assessed genetic gain using era studies, this study is the first to use two decades of ...
Ronica Mukaro, Davison Chaingeni, Clay Sneller, Jill E. Cairns, Lennin Musundire, Boddupalli M. Prasanna, Busiso Olga Mavankeni, Biswanath Das, Mable Mulanya, Walter Chivasa, Xavier Mhike, Xavier Mhike, Thokozile Ndhlela, Thokozile Ndhlela, Nakai Matongera, Nakai Matongera, Prince Muchapondwa Matova, Prince Muchapondwa Matova, Dean Muungani, Dean Muungani, Charles Mutimaamba, Charles Mutimaamba, Dagne Wegary, Mainassara Zaman-Allah, Cosmos Magorokosho, Victor Chingwara, Dumisani Kutywayo   +26 more
doaj   +1 more source