INHERITANCE OF RESISTANCE TO RYMV IN SELECTED RICE CULTIVARS IN UGANDA: DETERMINING THE MODE OF INHERITANCE FOR RESISTANCE TO A PREVALENT RYMV STRAIN IN UGANDA - Couverture souple

MOGGA, LADO; Edema, Richard; Lamo, Jimmy

 
9783843386838: INHERITANCE OF RESISTANCE TO RYMV IN SELECTED RICE CULTIVARS IN UGANDA: DETERMINING THE MODE OF INHERITANCE FOR RESISTANCE TO A PREVALENT RYMV STRAIN IN UGANDA
Couverture souple
ISBN 10 : 3843386838 ISBN 13 : 9783843386838
Editeur : LAP Lambert Academic Publishing, 2011

Synopsis

Rice yellow mottle sobemovirus is identified as the most destructive viral disease in lowland and upland rice. In this study, the mode of inheritance of resistance to a prevalent RYMV strain in Uganda was determined for resistant lines (upland NERICAs 8, 11, 12, 13 and Gigante (an O. sativa lowland variety) crossed with susceptible lines (lowland NERICAs 4, 6, 10 and IR64 (an O. sativa lowland variety)) in a full diallel mating design. Segregating F2 progeny were planted in field and screen house in ?-lattice design and inoculated by standard mechanical procedures. Reciprocal effects were significant (P<0.001), GCA effects were significant (P<0.001) and larger than SCA effects. The narrow sense coefficient of genetic determination based on genotype means was relatively high in screen house (76%) and field (84%) experiments. These results suggest additive gene effects were more important than non- additive effects, and selecting in F2 or F3 generations can be effective. Significant reciprocal effects implies the need for careful choice of male and female parents in hybridisation programs to achieve RYMV resistance in the offspring.

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À propos des auteurs

Mr. Lado Maurice Mogga was born on April 13th 1981. He completed his primary education in 1995, secondary education in 1999, advanced level education in 2001, bachelors degree in Agriculture in 2006, and a Masters degree in Plant breeding and seeds systems, Makerere University, kampala Uganda in 2010.

Mr. Lado Maurice Mogga was born on April 13th 1981. He completed his primary education in 1995, secondary education in 1999, advanced level education in 2001, bachelors degree in Agriculture in 2006, and a Masters degree in Plant breeding and seeds systems, Makerere University, kampala Uganda in 2010.

Mr. Lado Maurice Mogga was born on April 13th 1981. He completed his primary education in 1995, secondary education in 1999, advanced level education in 2001, bachelors degree in Agriculture in 2006, and a Masters degree in Plant breeding and seeds systems, Makerere University, kampala Uganda in 2010.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP Lambert Academic Publishing
Date d'édition
2011
Langue
anglais
ISBN 10 
3843386838
ISBN 13 
9783843386838
Reliure
Broché
Nombre de pages
104
Coordonnées du fabricant
non disponible
Personne responsable
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