Introducing unadapted, insect-resistant maize germplasm in three-way hybrid combinations for resistance to the maize stalk borer, Busseola fusca (Fuller) (Lepidoptera: Noctuidae)
Material type:
TextPublication details: Mexico, DF (Mexico) CIMMYT : 1997ISBN: - 968-6923-79-9
- 633.153 MIH
| Item type | Current library | Collection | Call number | Copy number | Status | Date due | Barcode | Item holds | |
|---|---|---|---|---|---|---|---|---|---|
| Conference proceedings | CIMMYT Knowledge Center: John Woolston Library | CIMMYT Publications Collection | 633.153 MIH (Browse shelf(Opens below)) | 1 | Available | 1P623915 |
Browsing CIMMYT Knowledge Center: John Woolston Library shelves, Collection: CIMMYT Publications Collection Close shelf browser (Hides shelf browser)
The potential value of various levels of resistance to the maize stalk borer was evaluated by crossing three unadapted, resistant inbreds and three local elite inbreds in various combinations. The unadapted, resistant germplasm could be employed directly to introduce resistance, provided that undesirable traits inherent to the unadaped parents were sufficiently diminished by the genetic contribution of the adapted germplasm. The use of a single resistant parent in a three-way hybrid to increase the resistance level to 25% was sufficient to eliminate the need for chemical control at moderate levels of infestation. The use of two resistant parents to obtain a level of 50% resistance in the resultant three-way cross posed an unacceptable risk, due to an increased incidence of ear rot and lodging.
English
9711|AGRIS 9702
Jose Juan Caballero
CIMMYT Publications Collection