Effects of Water Stress on Growth and Aspects of Primary Metabolism of Seedlings of Zea Mays Linn. Variety Farz 27.

Simple item page
dc.contributor.authorEbukanson, Gabriel John
dc.contributor.otherLawanson, A. O.
dc.date.accessioned2014-04-15T12:55:32Z
dc.date.accessioned2018-10-29T11:06:21Z
dc.date.available2014-04-15T12:55:32Z
dc.date.available2018-10-29T11:06:21Z
dc.date.issued1985
dc.degree.awardPh.D. Botanyen_US
dc.departmentBotanyen_US
dc.description.abstractMaize seedlings raised for six days were subjected to water stress treatments at 76.6% relative water content (RWC) and 66.5% RWC with appropriate controls. Growth of the maize seedlings, as measured by fresh weights, dry weights, seedling heights, leaf area index, leaf area ratio, leaf weight ratio, net assimilation rate and relative growth rate, was generally retarded by water stress. Water stress, on the other hand, effected enhanced accumulation of chlorophyll a, chlorophyll b, protochlorophyllide, protochlorophyll and phytol in the maize seedlings. The accumulation of carotenes and xanthophylls was enhanced while that of flavonoid was retarded. The levels of mitochondrial quinones, ATPase activities of the chloroplasts and mitochondria' oxidative phosphorylation activity and the activities of succinate, malate and glutamate-dehydrogenases were also generally retarded by water stress. It is suggested that, in water-stressed maize seedlings, the increased accumulation of carotenoids contributed to the increased accumulation of chlorophylls and their precursors. The retarded accumulation of mitochondrial quinones, and the retarded activities of oxidative phosphorylation and those of such enzymes as ATPases, succinate--, malate- and glutamate-dehydrogenases may be responsible for the retarded growth observed in the stressed maize seedlings. Flavonoid accumulation appears to be a better indicator of the effects of water stress on the performance of maize.en_US
dc.facultiesScienceen_US
dc.format.filetypePDFen_US
dc.identifier.citationAPAen_US
dc.identifier.urihttp://localhost:8080/xmlui/handle/123456789/3423
dc.language.isoenen_US
dc.pages.totalpages139pen_US
dc.publisherObafemi Awolowo Universityen_US
dc.subjectWater stressen_US
dc.subjectwater stress treatmentsen_US
dc.titleEffects of Water Stress on Growth and Aspects of Primary Metabolism of Seedlings of Zea Mays Linn. Variety Farz 27.en_US
dc.typeThesisen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Effects of Water Stress on Growth and Aspects of Primary Metabolim of-Ph.D.pdf
Size:
9.5 KB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 2 of 2
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Thumbnail Image
Name:
license.txt
Size:
0 B
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Theses and Dissertations