Abstract
A water deficit can significantly limit the sustainable production of plants, resulting in reduced growth, development, and flowering. The use of biostimulants improves plant stability and promotes growth under low-irrigation conditions. This study evaluated the effects of biostimulators on the growth, development, and flowering of tuberose (Polianthes tuberosa L.) under water-deficit conditions. This experiment was conducted using a completely randomized design with three replications in pots and eight treatments: four irrigation regimes (100%, 80%, 60%, and 40%), and four biostimulant treatments (foliar application of seaweed extract (SE) at concentrations of 500, 1000, and 2000 ppm; humic acid (HA) application at concentrations of 150, 300, and 600 ppm; inoculation of the bed with mycorrhiza; a control treatment without biostimulators). We measured the length, diameter, and fresh and dry weight of the flower pedicel; the number of leaves per plant; the fresh and dry weight of the leaves, stem, and root of each plant; and the content of photosynthetic pigments, phenol, proline, carbohydrates, and flavonoids. The results of this study showed that the growth and development of tuberoses were positively affected by different irrigation levels and biostimulants. The highest morphological characteristics were observed in plants irrigated at 100% field capacity. In contrast, the irrigation regime treatment of 40% of the field capacity combined with 600 mg/l of HA had the most detrimental effect on plant growth indicators. Findings suggest that application of 2000 ppm of SE biostimulant contributes to the mitigation of the negative effects of water deficit in tuberose production under greenhouse conditions as an irrigation water conservation strategy that can be exploited to maintain high yields.
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Claims 4
Claim · model-written summary
Different irrigation levels and biostimulants positively affected tuberose growth and development.
- Taxon
- tuberoses
Agave amicae0 - Treatment
- different irrigation levels and biostimulantse0
- Outcome
- growth and developmente0
- Direction
- positively affectede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“growth and development of tuberoses were positively affected by different irrigation levels and biostimulants”
Claim · model-written summary
Morphological characteristics were highest at 100% field capacity.
- Taxon
- plantsViridiplantaee0
- Treatment
- 100% field capacitye0
- Outcome
- morphological characteristicse0
- Direction
- higheste0
Verbatim
e0“The highest morphological characteristics were observed in plants irrigated at 100% field capacity”
Claim · model-written summary
Irrigation at 40% field capacity with 600 mg/l humic acid most harmed plant growth indicators.
- Taxon
- plante0
- Treatment
- 40% of the field capacity combined with 600 mg/l of HAe0
- Outcome
- plant growth indicatorse0
- Direction
- most detrimentale0
Not reportedComparator
Verbatim
e0“the irrigation regime treatment of 40% of the field capacity combined with 600 mg/l of HA had the most detrimental effect on plant growth indicators”
Claim · model-written summary
Seaweed extract at 2000 ppm may mitigate water deficit effects in greenhouse tuberose production.
- Taxon
- tuberoseAgave amicae0
- Treatment
- 2000 ppm of SE biostimulante0
- Outcome
- mitigation of the negative effects of water deficite0
- Setting
- greenhouse conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of 2000 ppm of SE biostimulant contributes to the mitigation of the negative effects of water deficit in tuberose production under greenhouse conditions”
The same questions in other papers
other · growth · Agave amica (tuberose)Positive and negative results
8 in the opposite direction
- positive
- positive
- positive
5 papers more in this group
See all 9 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.