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Using natural intraspecific cross-pollination in development of highyielding soybean varieties

By: Nersisyan, P | Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT) | Tbilisi (Georgia) 14-17 Jun 2004.
Contributor(s): Bedoshvili, D [ed.] | Sarkisyan, K [coaut.].
Material type: materialTypeLabelBookAnalytics: Show analyticsPublisher: Tbilisi (Georgia) CIMMYT : 2004Description: p. 400-4001.Subject(s): Crop yield | Cross pollination | Hybridization | Plant developmental stages | Pollination | Soybeans | Varieties | CIMMYTDDC classification: 633.1147 Summary: It is widely accepted that obtaining of high and stable yields of agricultural crops, including soybean, and further increasing of their production are greatly dependent on the development of new improved varieties. At the same time, a method of in1ra-specific hybridization combined with individual selection is a very efficient tool in development of new varieties. However, due to peculiar features of the f1ower structure of soybean, its artificial hybri- dization is associated with some difficulties. In the course of breeding research, we have found that soybean; known as a strict self-pollinator, under natural conditions is frequently cross-polli- nated, forming spontaneous hybrids that represent a great interest for breeding. Among the individually selected hybrid plants, irrespective of their gene- rations, a number of the lines have been found that two-three times exceed their parental lines in many valuable traits. By means of multiple individual selections in the segregating populations produced by natural cross-pollination we have already developed four soybean varieties (Vagharashapati I, Vagharashapati 2, Kotaiki 3, and Kotaiki 4), which are distinguished by high yield. They out-yielded check variety Hodson by 20-30%. The first two varieties have already gone through the state testing system and have been patented. In addition, the developed varieties possess important biological and economic traits and may be successfully used in subsequent breeding programs as parental material for selecting new more valuable soybean varieties.Collection: CIMMYT Publications Collection
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Conference proceedings CIMMYT Knowledge Center: John Woolston Library

Lic. Jose Juan Caballero Flores

 

CIMMYT Publications Collection 633.1147 BED (Browse shelf) 1 Available 6M630072
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Abstract only

It is widely accepted that obtaining of high and stable yields of agricultural crops, including soybean, and further increasing of their production are greatly dependent on the development of new improved varieties. At the same time, a method of in1ra-specific hybridization combined with individual selection is a very efficient tool in development of new varieties. However, due to peculiar features of the f1ower structure of soybean, its artificial hybri- dization is associated with some difficulties. In the course of breeding research, we have found that soybean; known as a strict self-pollinator, under natural conditions is frequently cross-polli- nated, forming spontaneous hybrids that represent a great interest for breeding. Among the individually selected hybrid plants, irrespective of their gene- rations, a number of the lines have been found that two-three times exceed their parental lines in many valuable traits. By means of multiple individual selections in the segregating populations produced by natural cross-pollination we have already developed four soybean varieties (Vagharashapati I, Vagharashapati 2, Kotaiki 3, and Kotaiki 4), which are distinguished by high yield. They out-yielded check variety Hodson by 20-30%. The first two varieties have already gone through the state testing system and have been patented. In addition, the developed varieties possess important biological and economic traits and may be successfully used in subsequent breeding programs as parental material for selecting new more valuable soybean varieties.

English

0409|AGRIS 0401|AL-Wheat Program

Juan Carlos Mendieta

CIMMYT Publications Collection

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