Melhoramento de alguns Arroz Aromático

Melhoramento de alguns Arroz Aromático

Dr. Nihar Ranjan Chakraborty / Sudip Bhattacharaya

65,86 €
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2025
Materia
Botánica y ciencias de las plantas
ISBN:
9786202326025
65,86 €
IVA incluido
Disponible

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Vinte e oito genótipos de arroz aromático foram cultivados num esquema de blocos completos aleatórios com três repetições durante duas épocas de colheita. Informações sobre dezesseis caracteres quantitativos foram analisadas biometricamente. As estimativas de variabilidade genética indicaram a predominância de ação genética aditiva para a expressão dos caracteres. O resultado da análise de caminho indica que a seleção de caracteres importantes que ajudarão a melhorar o rendimento de grãos na população em estudo. Os estudos sobre a divergência genética revelaram que os 28 genótipos podem ser agrupados em 5 grupos. O padrão de agrupamento dos genótipos indicou pouca relação entre a divergência genética e a diferenciação geográfica. Tendo em conta a divergência genética, a importância relativa dos caracteres na determinação do rendimento nesta população específica e o desempenho dos genótipos, bem como as médias dos agrupamentos, o cruzamento entre os genótipos intra-agrupamento tem mais probabilidades de produzir uma quantidade considerável de hetroses na geração F1 e de proporcionar um vasto espetro de recombinantes nas gerações segregantes.

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