1.1 Microbes in the soil could be beneficial to plants and one way to evaluate this is by determining the R/S ratio. Define the R/S ratio. 1.2Both rhizospheric and root-free soils were collected from five (5) plants before (BT) and after (AT) treatment. Using the microbial biomass that appear in Table 1, the R/S ratios before (BT) and after (AT) can be determined. Use these values to determine the respective R/S ratios. Kindly show all workings. Microbial population Before Treatment (BT) Plants R/S Microbial population After Treatment (AT) R/S ratio ratio (BT) (AT) Rhizospheric Non- soil (CFU) Rhizospheric Non- rhizospheric soil (CFU) soil (CFU) rhizospheric soil (CFU) Typha sp. 764 168 988 186 Pistia sp. 286 86 386 112 Salvinia 397 132 528 166 sp. Lemna sp. 274 121 406 152 Eichhornia 443 140 648 196 sp.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
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Chapter1: The Human Body: An Orientation
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1.1 Microbes in the soil could be beneficial to plants and one way to evaluate this is by
determining the R/S ratio. Define the R/S ratio.
1.2 Both rhizospheric and root-free soils were collected from five (5) plants before (BT)
and after (AT) treatment. Using the microbial biomass that appear in Table 1, the R/S
ratios before (BT) and after (AT) can be determined. Use these values to determine
the respective R/S ratios. Kindly show all workings.
Microbial population
Before Treatment (BT)
Plants
R/S
Microbial population After
Treatment (AT)
R/S
ratio
ratio
(BT)
(AT)
Rhizospheric Non-
soil (CFU)
Rhizospheric Non-
rhizospheric soil (CFU)
soil (CFU)
rhizospheric
soil (CFU)
Typha sp.
764
168
988
186
Pistia sp.
286
86
386
112
Salvinia
397
132
528
166
sp.
Lemna sp.
274
121
406
152
Eichhornia
443
140
648
196
sp.
Transcribed Image Text:1.1 Microbes in the soil could be beneficial to plants and one way to evaluate this is by determining the R/S ratio. Define the R/S ratio. 1.2 Both rhizospheric and root-free soils were collected from five (5) plants before (BT) and after (AT) treatment. Using the microbial biomass that appear in Table 1, the R/S ratios before (BT) and after (AT) can be determined. Use these values to determine the respective R/S ratios. Kindly show all workings. Microbial population Before Treatment (BT) Plants R/S Microbial population After Treatment (AT) R/S ratio ratio (BT) (AT) Rhizospheric Non- soil (CFU) Rhizospheric Non- rhizospheric soil (CFU) soil (CFU) rhizospheric soil (CFU) Typha sp. 764 168 988 186 Pistia sp. 286 86 386 112 Salvinia 397 132 528 166 sp. Lemna sp. 274 121 406 152 Eichhornia 443 140 648 196 sp.
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