Abstract
1 SUMMARY Carob, Ceratonia siliqua L., is a typical Mediterranean forest tree. In Morocco, it is used as protection against soil erosion and animals eat its fruit. The objective is to study the effect of irrigation on the survival and growth of seedlings of carob. Two water regimes (irrigation and water stress) were evaluated with 42 plants for over four periods: just after planting, then at the end of each year for three consecutive years. The study shows that the additional water supply resulted in survival rates (after a year of growth) higher than for the situation under water stress, but these differences are not statistically significant, at least until the end of the third year after planting. These survival rates were 88% in irrigated against 76% under water stress. In contrast, the study shows that irrigation has a significant effect, P-value between 1 % and 3 %, on the growth of seedlings of carob, namely their height. Initially, there was no significant difference between the two treatments, but this difference arose and becomes significant at the end of the first year and will continued over the next two years. The mean difference (irrigated-dry) increased by 7 cm at the end of the first year, 15 cm at the end of the second year to 19 cm at the end of the third year. It can be concluded that the addition of extra water has no significant effect on the survival rate, but it has a clearly significant effect on plant growth (height). Therefore, irrigation during the first two years twice a month would be highly recommended for better growth of the carob tree.
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Claims 6
Claim · model-written summary
Irrigation gave higher carob seedling survival than water stress, but the difference was not significant.
- Taxon
- Ceratonia siliqua
Ceratonia siliquae0 - Treatment
- additional water supplye1
- Outcome
- survival ratese1
- Direction
- highere1
- Value
- 88% in irrigated against 76%e2
- Comparator
- water stresse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Carob, Ceratonia siliqua L., is a typical Mediterranean forest tree”
e1“the additional water supply resulted in survival rates (after a year of growth) higher than for the situation under water stress, but these differences are not statistically significant”
e2“These survival rates were 88% in irrigated against 76% under water stress”
Claim · model-written summary
Irrigation had a significant effect on carob seedling height.
- Taxon
- Ceratonia siliquaCeratonia siliquae0
- Treatment
- irrigatione3
- Outcome
- heighte3
- Qualifier
- P-value between 1 % and 3 %e3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Carob, Ceratonia siliqua L., is a typical Mediterranean forest tree”
e3“irrigation has a significant effect, P-value between 1 % and 3 %, on the growth of seedlings of carob, namely their height”
Claim · model-written summary
Irrigated carob seedlings were 7 cm taller than dry ones at the end of the first year.
- Taxon
- Ceratonia siliquaCeratonia siliquae0
- Treatment
- irrigatede4
- Outcome
- mean differencee4
- Direction
- increasede4
- Value
- 7 cme4
- Qualifier
- at the end of the first yeare4
- Comparator
- drye4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Carob, Ceratonia siliqua L., is a typical Mediterranean forest tree”
e4“The mean difference (irrigated-dry) increased by 7 cm at the end of the first year, 15 cm at the end of the second year to 19 cm at the end of the third year”
Claim · model-written summary
Irrigated carob seedlings were 15 cm taller than dry ones at the end of the second year.
- Taxon
- Ceratonia siliquaCeratonia siliquae0
- Treatment
- irrigatede4
- Outcome
- mean differencee4
- Direction
- increasede4
- Value
- 15 cme4
- Qualifier
- at the end of the second yeare4
- Comparator
- drye4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Carob, Ceratonia siliqua L., is a typical Mediterranean forest tree”
e4“The mean difference (irrigated-dry) increased by 7 cm at the end of the first year, 15 cm at the end of the second year to 19 cm at the end of the third year”
Claim · model-written summary
Irrigated carob seedlings were 19 cm taller than dry ones at the end of the third year.
- Taxon
- Ceratonia siliquaCeratonia siliquae0
- Treatment
- irrigatede4
- Outcome
- mean differencee4
- Direction
- increasede4
- Value
- 19 cme4
- Qualifier
- at the end of the third yeare4
- Comparator
- drye4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Carob, Ceratonia siliqua L., is a typical Mediterranean forest tree”
e4“The mean difference (irrigated-dry) increased by 7 cm at the end of the first year, 15 cm at the end of the second year to 19 cm at the end of the third year”
Claim · model-written summary
Irrigation during the first two years, twice a month, is recommended for better carob growth.
- Taxon
- carobCeratonia siliquae5
- Outcome
- irrigation during the first two years twice a monthe5
- Qualifier
- for better growthe5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“irrigation during the first two years twice a month would be highly recommended for better growth of the carob tree”
The same questions in other papers
irrigation · growth · Ceratonia siliqua (carob)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.