Abstract
Spinach is susceptible to various fungal, bacterial, and viral pathogens. Among these, bacterial leaf spot poses a significant threat, leading to substantial reductions in both yield and quality. Recent research focused on evaluating different plant defense activators for their effectiveness against bacterial leaf spot in spinach. Of the tested activators, Salicylic acid showed the lowest disease severity and incidence, with values of 24.76% and 27.73%, respectively, followed by Citric acid (27.43%, 32.76%), Benzoic acid (29.57%, 38.32%), and K2HPO4 (33.31%, 38.38%) under greenhouse and field conditions, compared to the control. Various epidemiological factors—including temperature (minimum and maximum), relative humidity (%), rainfall (mm), and wind speed (km/h)—were assessed for their impact on disease development in three local spinach varieties: Dasi Palak, Lahori Palak, and Swiss Chard Palak. The results showed that disease severity increased considerably when the temperature ranged from 26-28°C, relative humidity was 69-73%, rainfall was 0.5-1 mm, and wind speed was 1.5-2 km/h. All environmental factors exhibited a positive correlation with the development of bacterial leaf spot in spinach. Greenhouse and field trials were conducted using a Complete Randomized Design (CRD) and a Randomized Complete Block Design (RCBD), respectively. Based on the findings, the application of Salicylic acid is recommended as a reliable and ecologically sound strategy for managing bacterial leaf spot in spinach.
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Claims 14
Claim · model-written summary
Salicylic acid gave the lowest bacterial leaf spot severity in spinach (24.76%) among tested activators, under greenhouse and field conditions, compared with the control.
- Taxon
- Spinach
Spinacia oleraceat0 - Treatment
- Salicylic acide0
- Outcome
- disease severitye0
- Direction
- loweste0
- Value
- 24.76%e0
- Comparator
- controle1
- Setting
- greenhouse and field conditionse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salicylic acid showed the lowest disease severity and incidence, with values of 24.76% and 27.73%, respectively”
e1“under greenhouse and field conditions, compared to the control”
t0“Bacterial Leaf Spot in Spinach”
Claim · model-written summary
Salicylic acid gave the lowest bacterial leaf spot incidence in spinach (27.73%) among tested activators, under greenhouse and field conditions, compared with the control.
- Taxon
- SpinachSpinacia oleraceat0
- Treatment
- Salicylic acide0
- Outcome
- incidencee0
- Direction
- loweste0
- Value
- 27.73%e0
- Comparator
- controle1
- Setting
- greenhouse and field conditionse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salicylic acid showed the lowest disease severity and incidence, with values of 24.76% and 27.73%, respectively”
e1“under greenhouse and field conditions, compared to the control”
t0“Bacterial Leaf Spot in Spinach”
Claim · model-written summary
Citric acid gave a bacterial leaf spot severity of 27.43% in spinach, higher than salicylic acid but reduced relative to the control, under greenhouse and field conditions.
- Taxon
- SpinachSpinacia oleraceat0
- Treatment
- Citric acide1
- Outcome
- disease severitye0
- Direction
- decreaseinferrede0
- Value
- 27.43%e1
- Comparator
- controle2
- Setting
- greenhouse and field conditionse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“disease severity and incidence”
e1“Citric acid (27.43%, 32.76%)”
e2“under greenhouse and field conditions, compared to the control”
t0“Bacterial Leaf Spot in Spinach”
Claim · model-written summary
Citric acid gave a bacterial leaf spot incidence of 32.76% in spinach, higher than salicylic acid but reduced relative to the control, under greenhouse and field conditions.
- Taxon
- SpinachSpinacia oleraceat0
- Treatment
- Citric acide1
- Outcome
- incidencee0
- Direction
- decreaseinferrede0
- Value
- 32.76%e1
- Comparator
- controle2
- Setting
- greenhouse and field conditionse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“disease severity and incidence”
e1“Citric acid (27.43%, 32.76%)”
e2“under greenhouse and field conditions, compared to the control”
t0“Bacterial Leaf Spot in Spinach”
Claim · model-written summary
Benzoic acid gave a bacterial leaf spot severity of 29.57% in spinach, higher than salicylic acid but reduced relative to the control, under greenhouse and field conditions.
- Taxon
- SpinachSpinacia oleraceat0
- Treatment
- Benzoic acide1
- Outcome
- disease severitye0
- Direction
- decreaseinferrede0
- Value
- 29.57%e1
- Comparator
- controle2
- Setting
- greenhouse and field conditionse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“disease severity and incidence”
e1“Benzoic acid (29.57%, 38.32%)”
e2“under greenhouse and field conditions, compared to the control”
t0“Bacterial Leaf Spot in Spinach”
Claim · model-written summary
Benzoic acid gave a bacterial leaf spot incidence of 38.32% in spinach, higher than salicylic acid but reduced relative to the control, under greenhouse and field conditions.
- Taxon
- SpinachSpinacia oleraceat0
- Treatment
- Benzoic acide1
- Outcome
- incidencee0
- Direction
- decreaseinferrede0
- Value
- 38.32%e1
- Comparator
- controle2
- Setting
- greenhouse and field conditionse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“disease severity and incidence”
e1“Benzoic acid (29.57%, 38.32%)”
e2“under greenhouse and field conditions, compared to the control”
t0“Bacterial Leaf Spot in Spinach”
Claim · model-written summary
K2HPO4 gave a bacterial leaf spot severity of 33.31% in spinach, higher than salicylic acid but reduced relative to the control, under greenhouse and field conditions.
- Taxon
- SpinachSpinacia oleraceat0
- Treatment
- K2HPO4e1
- Outcome
- disease severitye0
- Direction
- decreaseinferrede0
- Value
- 33.31%e1
- Comparator
- controle2
- Setting
- greenhouse and field conditionse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“disease severity and incidence”
e1“K2HPO4 (33.31%, 38.38%)”
e2“under greenhouse and field conditions, compared to the control”
t0“Bacterial Leaf Spot in Spinach”
Claim · model-written summary
K2HPO4 gave a bacterial leaf spot incidence of 38.38% in spinach, higher than salicylic acid but reduced relative to the control, under greenhouse and field conditions.
- Taxon
- SpinachSpinacia oleraceat0
- Treatment
- K2HPO4e1
- Outcome
- incidencee0
- Direction
- decreaseinferrede0
- Value
- 38.38%e1
- Comparator
- controle2
- Setting
- greenhouse and field conditionse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“disease severity and incidence”
e1“K2HPO4 (33.31%, 38.38%)”
e2“under greenhouse and field conditions, compared to the control”
t0“Bacterial Leaf Spot in Spinach”
Claim · model-written summary
Disease severity of bacterial leaf spot in spinach increased considerably when temperature was 26-28°C.
- Taxon
- SpinachSpinacia oleraceat0
- Treatment
- temperaturee1
- Outcome
- disease severitye0
- Direction
- increasede0
- Value
- 26-28°Ce1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“disease severity increased considerably”
e1“temperature ranged from 26-28°C”
t0“Bacterial Leaf Spot in Spinach”
Claim · model-written summary
Disease severity of bacterial leaf spot in spinach increased considerably when relative humidity was 69-73%.
- Taxon
- SpinachSpinacia oleraceat0
- Treatment
- relative humiditye1
- Outcome
- disease severitye0
- Direction
- increasede0
- Value
- 69-73%e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“disease severity increased considerably”
e1“relative humidity was 69-73%”
t0“Bacterial Leaf Spot in Spinach”
Claim · model-written summary
Disease severity of bacterial leaf spot in spinach increased considerably when rainfall was 0.5-1 mm.
- Taxon
- SpinachSpinacia oleraceat0
- Treatment
- rainfalle1
- Outcome
- disease severitye0
- Direction
- increasede0
- Value
- 0.5-1 mme1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“disease severity increased considerably”
e1“rainfall was 0.5-1 mm”
t0“Bacterial Leaf Spot in Spinach”
Claim · model-written summary
Disease severity of bacterial leaf spot in spinach increased considerably when wind speed was 1.5-2 km/h.
- Taxon
- SpinachSpinacia oleraceat0
- Treatment
- wind speede1
- Outcome
- disease severitye0
- Direction
- increasede0
- Value
- 1.5-2 km/he1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“disease severity increased considerably”
e1“wind speed was 1.5-2 km/h”
t0“Bacterial Leaf Spot in Spinach”
Claim · model-written summary
All the environmental factors assessed were positively correlated with the development of bacterial leaf spot in spinach.
- Taxon
- spinachSpinacia oleraceae0
- Treatment
- environmental factorse0
- Outcome
- development of bacterial leaf spote0
- Direction
- increaseinferrede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All environmental factors exhibited a positive correlation with the development of bacterial leaf spot in spinach”
Claim · model-written summary
The authors recommend applying salicylic acid as a reliable and ecologically sound strategy for managing bacterial leaf spot in spinach.
- Taxon
- spinachSpinacia oleraceae0
- Outcome
- managing bacterial leaf spote0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of Salicylic acid is recommended as a reliable and ecologically sound strategy for managing bacterial leaf spot in spinach”
The same questions in other papers
salicylic acid · disease · Spinacia oleracea (spinach)Results agree
1 paper in the same direction as this paper
- 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.