Studies on 14CO2-assimilation in marine rhodophyceae

1978 ◽  
Vol 48 (1) ◽  
pp. 47-54 ◽  
Author(s):  
B. P. Kremer
Keyword(s):  
14Co2 Assimilation

scholarly journals Measurement of 14CO2 Assimilation in Soils: an Experiment for the Biological Exploration of Mars

1970 ◽  
Vol 19 (1) ◽  
pp. 32-38 ◽  
Author(s):  
Jerry S. Hubbard ◽  
George L. Hobby ◽  
Norman H. Horowitz ◽  
Paul J. Geiger ◽  
Frank A. Morelli
Keyword(s):  
14Co2 Assimilation

Seasonal changes in 14CO2 assimilation and 14C translocation in oilseed rape

1984 ◽  
Vol 8 ◽  
pp. 341-348 ◽  
Author(s):  
S.B. Rood ◽  
D.J. Major ◽  
W.A. Charnetski
Keyword(s):  
Oilseed Rape ◽  
Seasonal Changes ◽  
14Co2 Assimilation

Effects of Water Stress on Growth, Pigments and 14CO2 Assimilation in Three Sorghum Cultivars

2000 ◽  
Vol 185 (2) ◽  
pp. 73-82 ◽  
Author(s):  
M. E. Younis ◽  
O. A. El-Shahaby ◽  
S. A. Abo-Hamed ◽  
A. H. Ibrahim
Keyword(s):  
Water Stress ◽  
14Co2 Assimilation

PHOTOSYNTHATE TRANSLOCATION IN TILLERED ZEA MAYS FOLLOWING 14CO2 ASSIMILATION

1975 ◽  
Vol 55 (2) ◽  
pp. 407-414 ◽  
Author(s):  
C. O. ALOFE ◽  
L. E. SCHRADER
Keyword(s):  
Zea Mays ◽  
Leaf Blade ◽  
Zea Mays L ◽  
Grain Filling ◽  
Physiological Maturity ◽  
Stage Of Development ◽  
14Co2 Assimilation ◽  
Source Sink ◽  
Photosynthate Translocation

Photosynthate translocation in field-grown corn (Zea mays L.) as influenced by tillering was studied by offering 14CO2 to a leaf blade on either the main stalk or tiller. Translocation from the labeled leaf blade of the main stalk or its tiller differed markedly depending upon stage of development at labeling and harvest. In plants assimilating 14CO2 before tasseling, little photosynthate was translocated from the labeled plant to the tiller, or conversely. When the ear leaf blade of the main plant was labeled with14CO2 4 days post-silking, the main ear and stalk were major sinks for 14C-assimilates until physiological maturity. When the tiller ear leaf blade was labeled, the tiller stalk was the major sink at first, but the tiller ear became a strong sink later. During grain filling, source-sink relationships were strongly dependent upon the presence of ears on the main plant, tiller, or both. When both had an ear, the developing ear on the labeled main plant or tiller was the major sink. When neither had an ear, the stalk of the labeled main plant or tiller was the major sink. When the labeled tiller had no ear, 14C-photosynthate was translocated to the ear on the main plant; an earless main plant also supplied the tiller ear.

LEAF DIFFUSIVE RESISTANCE, SURFACE TEMPERATURE, OSMOTIC POTENTIAL AND 14CO2-ASSIMILATION CAPABILITY AS INDICATORS OF DROUGHT INTENSITY IN RAPE

1982 ◽  
Vol 62 (3) ◽  
pp. 785-789 ◽  
Author(s):  
JOHN M. CLARKE ◽  
THOMAS N. McCAIG
Keyword(s):  
Surface Temperature ◽  
Osmotic Potential ◽  
Brassica Campestris ◽  
Drought Response ◽  
Drought Intensity ◽  
Resistance Surface ◽  
Diffusive Resistance ◽  
14Co2 Assimilation

Leaf diffusive resistance, temperature and osmotic potential were evaluated in three Brassica campestris and three B. napus cultivars under both irrigated and rain-fed environments. These techniques differentiated between environments but not between cultivars within environments. Incorporation of 14CO2 by stressed plants of two cultivars under rain-fed conditions showed more promise as a means of differentiating cultivar drought response.

scholarly journals Measurement of 14CO2 Assimilation in Soils: an Experiment for the Biological Exploration of Mars

1970 ◽  
Vol 19 (1) ◽  
pp. 32-38
Author(s):  
Jerry S. Hubbard ◽  
George L. Hobby ◽  
Norman H. Horowitz ◽  
Paul J. Geiger ◽  
Frank A. Morelli
Keyword(s):  
14Co2 Assimilation

DISTRIBUTION OF PHOTOSYNTHATES AFTER 14CO2 ASSIMILATION BY STEMS, LEAVES, AND PODS OF RAPE PLANTS

1978 ◽  
Vol 58 (3) ◽  
pp. 783-787 ◽  
Author(s):  
D. J. MAJOR ◽  
J. B. BOLE ◽  
W. A. CHARNETSKI
Keyword(s):  
Brassica Napus ◽  
Brassica Napus L ◽  
Plant Parts ◽  
14Co2 Assimilation ◽  
Stems And Leaves ◽  
Lower Stem

Rape (Brassica napus L. cv. Zephyr) plants were allowed to assimilate 14CO2 through lower and upper stem internodes, leaves, and pods. Lower stem internodes exported few 14C-labelled assimilates. Lower leaves exported assimilates to the roots, whereas upper stems and leaves exported primarily to seeds and pods. Pods did not export labelled assimilates to other pods or plant parts but labelled photosynthate was detected in seed of the treated pod. The older the pod was, the greater the amount of radioactivity detected in the seed. Pods were also sinks for labelled assimilates from upper stem internodes and leaves.

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