Abstract
Techniques using a plastic tent to contain C 1 4 O 2 gas over herbaceous vegetation were effective for applying a tracer to Missouri tallgrass prairie. The grasses incorporated 67 to 41 μCi of C 1 4 /m 2 from a single exposure to 151 μCi of C 1 4 O 2 /m 2 for 6 hr on clipped and unclipped areas, respectively. Regenerated shoots, which had been clipped 6 weeks earlier, possessed 8 times higher specific activity than unclipped shoots (0.134 vs. 0.017 μCi/g of carbon in foliage biomass). The root systems of both areas possessed over 50% and the roots of mature vegetation as much as 85% of the assimilated C 1 4 remaining in the plant biomass 8 weeks after tagging, thus illustrating the tendency for food reserves to accumulate in underground storage organs late in the growing season. Specific activities in the root systems were similar (0.02 vs. 0.016 μCi/b C) for both revegetated and mature areas and were adequate for study of later translocation, transfer to soil, and in situ decomposition of organic material in soil.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 6
Claim · model-written summary
The plastic tent tracer technique was effective on Missouri tallgrass prairie.
- Taxon
- herbaceous vegetatione0
- Outcome
- effective for applying a tracere0
- Setting
- Missouri tallgrass prairiee0
Not reportedComparatorValue
Verbatim
e0“Techniques using a plastic tent to contain C 1 4 O 2 gas over herbaceous vegetation were effective for applying a tracer to Missouri tallgrass prairie”
Claim · model-written summary
Grasses incorporated 67 to 41 μCi of carbon-14 per square metre after one exposure.
Verbatim
e0“The grasses incorporated 67 to 41 μCi of C 1 4 /m 2 from a single exposure to 151 μCi of C 1 4 O 2 /m 2 for 6 hr on clipped and unclipped areas, respectively”
Claim · model-written summary
Regenerated shoots had eight times the specific activity of unclipped shoots.
Verbatim
e0“Regenerated shoots, which had been clipped 6 weeks earlier, possessed 8 times higher specific activity than unclipped shoots (0.134 vs. 0.017 μCi/g of carbon in foliage biomass)”
t0“Native Grassland Vegetation”
Claim · model-written summary
Roots in both areas retained over half the assimilated carbon-14 remaining after eight weeks.
Verbatim
e0“The root systems of both areas possessed over 50% and the roots of mature vegetation as much as 85% of the assimilated C 1 4 remaining in the plant biomass 8 weeks after tagging”
t0“Native Grassland Vegetation”
Claim · model-written summary
Mature vegetation roots retained as much as 85% of assimilated carbon-14 after eight weeks.
Verbatim
e0“The root systems of both areas possessed over 50% and the roots of mature vegetation as much as 85% of the assimilated C 1 4 remaining in the plant biomass 8 weeks after tagging”
Claim · model-written summary
Root specific activities were similar in revegetated and mature areas.
Verbatim
e0“Specific activities in the root systems were similar (0.02 vs. 0.016 μCi/b C) for both revegetated and mature areas and were adequate for study of later translocation, transfer to soil, and in situ decomposition of organic material in soil”
t0“Native Grassland Vegetation”