Abstract
Hemp (Cannabis sativa L.) is a multipurpose plant attracting increasing interest as a source for the production of natural fibers, paper, bio-building material and food. In this research we studied the agronomical performance of Cannabis sativa cv. Eletta Campana irrigated with saline water. Under those conditions, we tested the effect of protein hydrolysate (PH) biostimulant application in overcoming and/or balancing deleterious salinity effects. The results of the diverse treatments were also investigated at the physiological level, focusing on photosynthesis by means of a chlorophyll a fluorescence technique, which give an insight into the plant primary photochemical reactions. Four salinity levels of the irrigation solution (fresh water–EC0, and NaCl solutions at EC 2.0, 4.0 or 6.0 dS m−1, EC2, EC4 and EC6, respectively) were combined with 2 biostimulant treatments (untreated (control) or treated with a commercial legume-derived protein hydrolysate (LDPH)). The increasing salinity affected plant photochemistry resulting in lower plant growth and seed production, while the LDPH biostimulant showed a protective effect, which improved crop performance both in control and in salinity conditions. The LDPH treatment improved seeds yield (+38.6% on average of all treated plants respect to untreated plants), as well as residual biomass, relevant in fiber production.
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Claims 6
Claim · model-written summary
Increasing salinity affected hemp photochemistry.
- Taxon
- Hemp
Cannabis sativa subsp. sativat0 - Treatment
- increasing salinitye0
- Outcome
- plant photochemistrye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increasing salinity affected plant photochemistry resulting in lower plant growth and seed production”
t0“Hemp”
Claim · model-written summary
Increasing salinity lowered hemp growth.
- Taxon
- HempCannabis sativa subsp. sativat0
- Treatment
- increasing salinitye0
- Outcome
- plant growthe0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increasing salinity affected plant photochemistry resulting in lower plant growth and seed production”
t0“Hemp”
Claim · model-written summary
Increasing salinity lowered hemp seed production.
- Taxon
- HempCannabis sativa subsp. sativat0
- Treatment
- increasing salinitye0
- Outcome
- seed productione0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increasing salinity affected plant photochemistry resulting in lower plant growth and seed production”
t0“Hemp”
Claim · model-written summary
LDPH improved hemp crop performance under both control and saline conditions.
- Taxon
- HempCannabis sativa subsp. sativat0
- Treatment
- LDPH biostimulante0
- Outcome
- crop performancee0
- Direction
- improvede0
- Qualifier
- both in control and in salinity conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the LDPH biostimulant showed a protective effect, which improved crop performance both in control and in salinity conditions”
t0“Hemp”
Claim · model-written summary
LDPH increased hemp seed yield by 38.6% on average versus untreated plants.
- Taxon
- HempCannabis sativa subsp. sativat0
- Treatment
- LDPH treatmente0
- Outcome
- seeds yielde0
- Direction
- improvede0
- Value
- +38.6%e0
- Comparator
- untreated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The LDPH treatment improved seeds yield (+38.6% on average of all treated plants respect to untreated plants)”
t0“Hemp”
Claim · model-written summary
LDPH improved residual biomass relevant to fiber production.
- Taxon
- HempCannabis sativa subsp. sativat0
- Treatment
- LDPH treatmente0
- Outcome
- residual biomasse0
- Direction
- improvede0
- Comparator
- untreated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The LDPH treatment improved seeds yield (+38.6% on average of all treated plants respect to untreated plants), as well as residual biomass, relevant in fiber production.”
t0“Hemp”
The same questions in other papers
other · yield · Cannabis sativaPositive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
salinity · yield · Cannabis sativaResults agree
1 paper in the same direction as this paper
- negative
salinity · growth · Cannabis sativaResults agree
2 papers in the same direction as this paper
- negative
- negative
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.