Melhoramento fisiológico e genético do arroz de várzea
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Melhoramento fisiológico e genético do arroz de várzea

Melhoramento fisiológico e genético do arroz de várzea


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International Edition


About the Book

O arroz (Oryza sp.) é consumido todos os dias por metade da população mundial e é um alimento básico na África Subsariana (ASS). Constitui uma cultura estratégica para a segurança alimentar de vários países da região da ASS. No entanto, a ASS regista todos os anos enormes perdas de rendimento do arroz devido a stresses bióticos. A doença do vírus do míldio amarelo do arroz (RYMV), registada no Quénia há 52 anos, é um dos principais factores bióticos que afectam a produção de arroz e continua a ser uma doença viral importante na ASS. O reforço da resiliência varietal do arroz ao RYMV no Benim através do papel benéfico do silício e da seleção genética de progénies intra-específicas de arroz de terras baixas O. glaberrima foi realizado para melhorar a produtividade do arroz na África Ocidental. Actualizei a distribuição geográfica da doença RYMV e tive acesso às percepções de 102 produtores de arroz sobre os principais constrangimentos à produção de arroz no Benim. Posteriormente, analisei 79 genótipos melhorados aromáticos e não aromáticos desenvolvidos e introduzidos no Benim. Estes genótipos incluem o suscetível IR64 (O. sativa) e o resistente TOG5681 (O. glaberrima) como controlos. Os nossos resultados confirmam que o germoplasma de O. glaberrima é uma fonte importante de resistência ao isolado RBe24 do RYMV para a criação de resistência.


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Product Details
  • ISBN-13: 9786207150922
  • Publisher: KS Omniscriptum Publishing
  • Binding: Paperback
  • Language: Portuguese
  • Returnable: N
  • Weight: 277 gr
  • ISBN-10: 6207150929
  • Publisher Date: 09 Feb 2024
  • Height: 229 mm
  • No of Pages: 148
  • Spine Width: 9 mm
  • Width: 152 mm


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