Abstract
BACKGROUND. The effect of hemp retting water on test plots has been evaluated by molecular and agronomic analyses. The purpose was to consider the possibility of an ecologically compatible disposal of these effluents in agricultural ecosystems, in the event of a revival of industrial hemp cultivation. METHODS. Plots of wheat received 3 doses (0, 80 and 160 m 3 ha -1 ) of retting water in 2000. During the cultivation cycle, soil samples from the 0-20 cm layer were collected and analysed molecularly (DNA extraction, DGGE analysis and specific hybridisation of the eubacterial community and autotrophic oxidising ammonia bacteria). The agronomic analyses examined the biometric and production characteristics at harvesting: plant density and height, number of kernels per spike, seed weight and grain production. RESULTS. Molecular analysis indicates that a modification in the microflora occurred as soon as the water was spread. This change disappeared during the growing cycle and the DGGE profiles of the different trials were identical in May and July. The biometric and production data do not indicate any effect of the water on the plants’ phenotypic and production characteristics. CONCLUSIONS. The water from hemp retting, at the doses tested, seemed to have no negative effects on the telluric microflora nor on the morpho-biometric and production characteristics of the wheat plants. It instead tended to improve crop yield, although not significantly.
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Claims 5
Claim · model-written summary
Hemp retting water modified the soil microflora when it was spread on wheat plots.
- Taxon
- Wheat
Triticum aestivumt0 - Outcome
- microflorae2
- Qualifier
- as soon as the water was spreade2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Molecular analysis indicates that a modification in the microflora occurred as soon as the water was spread”
t0“on Wheat Yield”
Claim · model-written summary
The soil microflora change caused by retting water disappeared during the wheat growing cycle.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- changee3
- Qualifier
- disappeared during the growing cyclee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“This change disappeared during the growing cycle”
t0“on Wheat Yield”
Claim · model-written summary
DGGE profiles of the wheat soil trials were identical in May and July.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- DGGE profilese3
- Qualifier
- identical in May and Julye3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“the DGGE profiles of the different trials were identical in May and July”
t0“on Wheat Yield”
Claim · model-written summary
Hemp retting water had no detectable effect on phenotypic and production characteristics of wheat.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- The water from hemp rettinge6
- Outcome
- phenotypic and production characteristicse4
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The biometric and production data do not indicate any effect of the water on the plants’ phenotypic and production characteristics”
e6“The water from hemp retting, at the doses tested”
t0“on Wheat Yield”
Claim · model-written summary
Hemp retting water tended to improve wheat crop yield, although not significantly.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- The water from hemp rettinge6
- Outcome
- crop yielde5
- Direction
- improvee5
- Qualifier
- although not significantlye5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“It instead tended to improve crop yield, although not significantly”
e6“The water from hemp retting, at the doses tested”
t0“on Wheat Yield”
The same questions in other papers
Cannabis sativa subsp. sativa · yield · Triticum aestivum (wheat)Positive and negative results
4 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
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2 papers more in this group
See all 6 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.