Plant Physiol. Illumina
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Plant Physiology 52:436-439 (1973)
© 1973 American Society of Plant Biologists

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via Web of Science (26)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Brevedan, E. R.
Right arrow Articles by Hodges, H. F.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Brevedan, E. R.
Right arrow Articles by Hodges, H. F.
Agricola
Right arrow Articles by Brevedan, E. R.
Right arrow Articles by Hodges, H. F.
Articles

Effects of Moisture Deficits on 14C Translocation in Corn (Zea mays L.) 1

E. R. Brevedan2 and H. F. Hodges

a Department of Agronomy, Purdue University Agricultural Experiment Station, West Lafayette, Indiana 47907

Corn plants (Zea mays L.) were grown in the field on two soils. On a droughty soil, water was withheld from some plants during the grain-filling period while other plants were irrigated. Carbon-14 was fed to the leaves, and translocation to different plant parts was determined. Translocation appeared to be more sensitive to moisture stress than was photosynthesis. More radioactive carbon was retained in both the fed portion and the nonfed portion of the leaf of stressed plants than in nonstressed plants. The stalk segment between the treated leaf and ear-node also contained less radioactivity in stressed plants than in nonstressed plants. On a soil with higher water-holding capacity, moisture stress was imposed on plants by root pruning. Plants under severe stress continued to translocate photosynthetically assimilated 14C nearly as well as nonstressed plants for 90 minutes. Between 90 and 120 minutes after labeling, there was a major reduction in amount translocated in stressed plants compared to the nonstressed plants. At longer translocation times the rates of translocation appeared again to be more nearly equal.

2 Present address: Department of Agronomy, University of Kentucky, Lexington, Ky.

1 This research was supported in part by National Science Foundation Grant GA 36574. Journal Paper No. 5062.






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
ASPB Publications PLANT PHYSIOLOGY® THE PLANT CELL
Copyright © 1973 by the American Society of Plant Biologists