Abstract
There has been an increase in the search for forms of renewable energy with lo environmental impacts, of which biodiesel is highlighted. The castor bean (Ricinus communis L.) is a major raw material for the derivation of these biomass-based fuels. Due to the lack of information in literature regarding irrigation in castor bean crops in the semiarid region of Bahia, the aim of this study was to evaluate different irrigation levels on growth and yield of castor beans in the semiarid region of Bahia. The study was conducted in an experimental area of the agricultural sector of the Federal Institute of Education, Science and Technology Campus, Guanambi, Bahia, Brazil. The experiment was setup in a completely randomized design with 4x5 factorial scheme, consisting of four irrigation levels (T1: 100% ETc, T2: 80% of ETc, T3: 60% of ETc and T4: 40% of ETc, with drip irrigation), five evaluation dates (65, 80, 95, 110 and 126 day after sowing) and four replications. The reduction in irrigation did not cause differences in plant height, stem diameter and crown diameter of the castor bean cultivar Paraguaçu. Irrigation at 80% ETc showed to be more suitable, with increased yield and water use efficiency.
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Claims 4
Claim · model-written summary
Reduced irrigation did not differentiate plant height, stem diameter or crown diameter.
- Taxon
- castor bean
Ricinus communise0 - Material
- Paraguaçue0
- Treatment
- reduction in irrigatione0
- Outcome
- plant height, stem diameter and crown diametere0
- Direction
- did not cause differencese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reduction in irrigation did not cause differences in plant height, stem diameter and crown diameter of the castor bean cultivar Paraguaçu.”
Claim · model-written summary
80% ETc increased yield.
- Taxon
- castor beanRicinus communist0
- Treatment
- 80% ETce0
- Outcome
- yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation at 80% ETc showed to be more suitable, with increased yield and water use efficiency.”
t0“castor bean”
Claim · model-written summary
80% ETc increased water use efficiency.
- Taxon
- castor beanRicinus communist0
- Treatment
- 80% ETce0
- Outcome
- water use efficiencye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation at 80% ETc showed to be more suitable, with increased yield and water use efficiency.”
t0“castor bean”
Claim · model-written summary
The authors recommend 80% ETc irrigation.
- Taxon
- castor beanRicinus communist0
- Treatment
- 80% ETce0
- Outcome
- more suitablee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation at 80% ETc showed to be more suitable”
t0“castor bean”
The same questions in other papers
irrigation · growth · Ricinus communis (castor bean)Positive and negative results
1 paper in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- positive
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.