Tecnologia de haplóides - Uma ferramenta potencial para o melhoramento de culturas de arroz
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Tecnologia de haplóides - Uma ferramenta potencial para o melhoramento de culturas de arroz

Tecnologia de haplóides - Uma ferramenta potencial para o melhoramento de culturas de arroz


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International Edition


About the Book

As técnicas de cultura de tecidos vegetais são reconhecidas como instrumentos úteis para o melhoramento das culturas. Entre estas, a tecnologia haploide é aquela em que embriões haplóides são regenerados a partir de gâmetas masculinos e femininos para a produção de plantas haplóides e duplamente haplóides de origem homozigótica. Nesta técnica, destaca-se a cultura de anteras in vitro, que é uma ferramenta cada vez mais poderosa quando integrada em programas de melhoramento, uma vez que resulta em linhas puras. Para desenvolver uma metodologia específica para genótipos de arroz de dupla haploidia, foram obtidos genótipos de arroz 8F1, 1F2 e 1F3 da NSL. O objetivo deste projeto foi padronizar um protocolo eficiente para a produção de duplos haplóides para todos os genótipos, otimizar os componentes do meio, especialmente as hormonas e o stress frio, para induzir a embriogénese direta, a regeneração de plantas e a duplicação de cromossomas em regenerantes haplóides para obter duplos haplóides. A partir do nosso trabalho, desenvolvemos algumas linhas duplo-haplóides que são muito superiores ao progenitor híbrido. Algumas das características melhoradas são linhas duplo-haplóides com elevado aroma, boa qualidade culinária, elevado rendimento, tolerantes ao acamamento e resistentes a BLB e Blast.


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Product Details
  • ISBN-13: 9786207152407
  • Publisher: KS Omniscriptum Publishing
  • Binding: Paperback
  • Language: Portuguese
  • Returnable: N
  • Weight: 177 gr
  • ISBN-10: 6207152409
  • Publisher Date: 09 Feb 2024
  • Height: 229 mm
  • No of Pages: 80
  • Spine Width: 5 mm
  • Width: 152 mm


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