TY  - PRO
AU  - Chen Zong-Long
AU  - Edmeades,G.O.|Banziger,M.|Mickelson,H.R.|Pena-Valdivia,C.B.
AU  - Zhang He-Ming
ED  - Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico)
TI  - Effects of transplanting shock on maize root growth
SN  - 968-6923-93-4
U1  - 633.153 
PY  - 1997///
CY  - Mexico, DF (Mexico)
PB  - CIMMYT
KW  - Growth
KW  - Plant developmental stages
KW  - Plant growth substances
KW  - Plant production
KW  - Transplanting
KW  - Zea mays
KW  - AGROVOC
KW  - CIMMYT
N2  - 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
ER  -