Normal view MARC view ISBD view

Breeding Highland amilaceous maize for a hybrid program in central Peru

By: Aguirre Asturrizaga, C | Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico) | Arnel R. Hallauer International Symposium on Plant Breeding Mexico, D.F. (Mexico) 17-22 Aug 2003.
Contributor(s): Avila Rojas, J [coaut.].
Material type: materialTypeLabelBookAnalytics: Show analyticsPublisher: Mexico, DF (Mexico) CIMMYT : 2003Description: p. 144-145.Subject(s): Grain yield | Maize | Pollination | Seed crops | Semiarid zones | Genotypes AGROVOC | Hybrids AGROVOC | Plant breeding AGROVOCDDC classification: 631.53 Summary: The maize crop in the centra1 Andes of Peru includes almost 99% amilaceous landraces. The climate in this zone corresponds to semi-arid conditions with 500 mm of annua1 predpitation fa1ling within a six to seven month period; many of the predpitations have less than 10 mm. Otherwise, the traditiona1 agricultura1 maize used is the open pollinated variety (OPV) because of the feasibility to retain a fraction of the product to sow the subsequent crop. Maize fields produce a mean yield of 700 to 1,000 kg/h. Since the 1990s, there has been a growing market for fresh cobs (loca1ly named "choclo"); this market needs to buy new seed each year. The prindpal problem has been that materia1 has not been developed for this purpose. A1so, the inbreeding depression resulted in dramatic slow-down characteristics with depression ranges of 25 to 60% in yield and other characteristics adversely affecting growth and development (Aguirre and Acuña 1995). This study, by the Departments of Junun and Huancavehca, was carried out between 2,800 and 3,400 masl in the centra1 Andes of Peru, to overcome this lack of information and lay the basis for an effective hybrid program.Collection: CIMMYT Publications Collection
Tags from this library: No tags from this library for this title. Log in to add tags.
    average rating: 0.0 (0 votes)
Item type Current location Collection Call number Copy number Status Date due Barcode Item holds
Conference proceedings CIMMYT Knowledge Center: John Woolston Library

Lic. Jose Juan Caballero Flores

 

CIMMYT Publications Collection 631.53 BOO (Browse shelf) 1 Available 1S632399
Total holds: 0

Additional copy in reserve|Includes: 1 CD-ROM

The maize crop in the centra1 Andes of Peru includes almost 99% amilaceous landraces. The climate in this zone corresponds to semi-arid conditions with 500 mm of annua1 predpitation fa1ling within a six to seven month period; many of the predpitations have less than 10 mm. Otherwise, the traditiona1 agricultura1 maize used is the open pollinated variety (OPV) because of the feasibility to retain a fraction of the product to sow the subsequent crop. Maize fields produce a mean yield of 700 to 1,000 kg/h. Since the 1990s, there has been a growing market for fresh cobs (loca1ly named "choclo"); this market needs to buy new seed each year. The prindpal problem has been that materia1 has not been developed for this purpose. A1so, the inbreeding depression resulted in dramatic slow-down characteristics with depression ranges of 25 to 60% in yield and other characteristics adversely affecting growth and development (Aguirre and Acuña 1995). This study, by the Departments of Junun and Huancavehca, was carried out between 2,800 and 3,400 masl in the centra1 Andes of Peru, to overcome this lack of information and lay the basis for an effective hybrid program.

English

0309|AGRIS 0301|AL-Maize Program

Juan Carlos Mendieta

CIMMYT Publications Collection

There are no comments for this item.

Log in to your account to post a comment.
baner

International Maize and Wheat Improvement Center (CIMMYT) © Copyright 2015. Carretera México-Veracruz. Km. 45, El Batán, Texcoco, México, C.P. 56237.
Monday –Friday 9:00 am. 17:00 pm. If you have any question, please contact us at CIMMYT-Knowledge-Center@cgiar.org

Centro Internacional de Mejoramiento de Maíz y Trigo (CIMMYT) © Copyright 2015. Carretera México-Veracruz. Km. 45, El Batán, Texcoco, México, C.P. 56237.
Lunes –Viernes 9:00 am. 17:00 pm. Si tiene cualquier pregunta, contáctenos a CIMMYT-Knowledge-Center@cgiar.org