Knowledge Center Catalog

Effects of transplanting shock on maize root growth

By: Contributor(s): Material type: TextTextPublication details: Mexico, DF (Mexico) CIMMYT : 1997ISBN:
  • 968-6923-93-4
Subject(s): DDC classification:
  • 633.153 EDM
Summary: A field experiment was conducted in 1993 involving three maize genotypes - a drought- sensitive hybrid, a drought tolerant hybrid and an open-pollinated variety (OPV). Results show that the response of the maize plant to transplanting shock depended on its genetic background. Compared with direct-seeding, root initiation in the two transplanted hybrids was stimulated by the shock. For the hybrid tolerant to drought, the root initiation stimulus started earlier than for the drought-sensitive hybrid, but t in the OPV root initiation seemed to be generally depressed . Prior to the 5-leaf stage the root dry weights of the three genotypes following transplanting were all lower than expected. The stimulus for increased rooting took place from the 6-leaf stage through to the silking stage. In the hybrid sensitive to drought this stimulus came much later than for the other two genotypes.
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Conference proceedings CIMMYT Knowledge Center: John Woolston Library CIMMYT Publications Collection 633.153 EDM (Browse shelf(Opens below)) 1 Available 1I624179
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A field experiment was conducted in 1993 involving three maize genotypes - a drought- sensitive hybrid, a drought tolerant hybrid and an open-pollinated variety (OPV). Results show that the response of the maize plant to transplanting shock depended on its genetic background. Compared with direct-seeding, root initiation in the two transplanted hybrids was stimulated by the shock. For the hybrid tolerant to drought, the root initiation stimulus started earlier than for the drought-sensitive hybrid, but t in the OPV root initiation seemed to be generally depressed . Prior to the 5-leaf stage the root dry weights of the three genotypes following transplanting were all lower than expected. The stimulus for increased rooting took place from the 6-leaf stage through to the silking stage. In the hybrid sensitive to drought this stimulus came much later than for the other two genotypes.

English

9801|AGRIS 9702

Jose Juan Caballero

CIMMYT Publications Collection


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