Assimilation, translocation and accumulation of in two maize (Zea mays L.) hybrids of different drought tolerance

Title:

Assimilation, translocation and accumulation of in two maize (Zea mays L.) hybrids of different drought tolerance

Creator:

Grzesiak, S., de Barbaro, A., and Filek, W.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:2353c0e0-411c-48dc-81fe-f2f06e7da0e6
uuid:2353c0e0-411c-48dc-81fe-f2f06e7da0e6
urnnbn:urn:nbn:cz:aba007-000fcc

Type:

model:internalpart and TEXT

Format:

print

Description:

The effect of water stress on the gas exchange (CO2, H2O), distribution, water potential (T*), membrane permeability and chlorophyll content was studied in two maize hybrids, of the high and low drought tolerance, in the vegetative phase of growth. Diťferences in the responses to drought between both hybrids were clearly marked. After 5 d of drought the decrease in the net photosynthetic rate uptake and losses, transpiration rate (E) and increase of stomata resistance (r^ were greater in the drought-resistant hybrid than in the drought-susceptible one. On the contrary, after 10 or 15 d of drought, the decrease of and 'P in whole seedlings was greater in the susceptible hybrid than in the resistant one. Significant differences between hybrids were also observed in the accumulation of *'^C, the membrane permeability and the chlorophyll content. For all treatments the amount of carbon accumulation in roots of the resistant hybrid increased, while that of the susceptible one decreased. In the drought-resistant hybrid we observed a greater chlorophyll stability and a smaller damage of cell membranes than in the sensitive one.

Language:

Multiple languages

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

585-593 and 161-169

Source:

Photosynthetica | 1992 Volume:27 | Number:4

Harvested from:

CDK

Metadata only:

false