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“yield decrease”

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Organism: Raphanus sativus ✕

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Biodegradable fleeces gave yields similar to nonwoven PP in autumn seasons.

Taxon: radishRaphanus sativuse1
Treatment: biodegradable fleecese3
Outcome: yieldse3
Direction: similare3
Comparator: nonwoven PPe3
Setting: autumn seasonse3

Verbatim

e1
“radish (Raphanus sativus L. var. sativus)”
✓ located verbatim in the source · abstract, characters 38–79

e3
“We observed a decrease in marketable yield of plants covered with biodegradable fleeces by 1.01 to 2.90 kg m -2 (SB48/11 and SB28/13, respectively) in spring seasons, but similar yields to nonwoven PP were obtained in the autumn seasons”
✓ located verbatim in the source · abstract, characters 651–887

Title

Biodegradable polymers as floating row covers in field production of radish

Andrzej Kalisz; Aneta Grabowska; Agnieszka Sekara; et al. Chilean journal of agricultural research 2019. doi:10.4067/s0718-58392019000200243

Other claims from this paper (10)

Intervention effect Biodegradable covers gave higher minimum air temperature than nonwoven PP covers in radish production.
Intervention effect SB20/13 covers lowered photosynthetically active radiation transmission by 4.1% compared with nonwoven PP.
Intervention effect SB21/13 covers lowered photosynthetically active radiation transmission by 7.1% compared with nonwoven PP.
Intervention effect SB48/11 biodegradable fleeces decreased marketable radish yield in spring seasons.
Intervention effect SB28/13 biodegradable fleeces decreased marketable radish yield in spring seasons.
Association Dry weight, soluble sugars and L-ascorbic acid of radish depended on environmental conditions rather than on the type of cover.
Association Pigments content of radish depended on environmental conditions rather than on the type of cover.
Intervention effect SB48/11 covers increased L-ascorbic acid content in radish roots compared with nonwoven PP.
Intervention effect SB20/13 covers increased L-ascorbic acid content in radish roots compared with nonwoven PP in one trial.
Recommendation The authors suggest biodegradable nonwovens as floating covers for radish grown in seasons with temperature drops.

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Foliar stevia leaf extract did not significantly affect the size and weight of radish root crops.

Taxon: radishRaphanus sativuse1
Treatment: Foliar treatment with an extract from stevia leavese1
Outcome: size and weight of radish root cropse1
Direction: no_changeinferrede1

Not reportedComparator

Verbatim

e1
“Foliar treatment with an extract from stevia leaves did not significantly affect the size and weight of radish root crops, but increased the yield due to a decrease in the number of bolting plants”
✓ located verbatim in the source · abstract, characters 1768–1964

Title

The possibility of using of an aqueous extract from stevia (Stevia rebaudiana Bertoni) leaves as a biostimulant of plant growth in photoculture

N. G. Sinyavina; A. A. Kochetov; K. V. Egorova; et al. VEGETABLE CROPS OF RUSSIA 2020. doi:10.18619/2072-9146-2020-6-31-35

Other claims from this paper (9)

Intervention effect Foliar stevia leaf extract increased radish yield through fewer bolting plants.
Intervention effect Foliar stevia leaf extract significantly decreased bolting of radish by 34-51% in all treatment options.
Intervention effect Dilution 1:100 of the stevia leaf extract increased marketable radish root crop yield by 20%.
Intervention effect Dilution 1:100 of the stevia leaf extract increased radish yield per square metre by 25%.
Intervention effect Foliar stevia leaf extract increased the mass of lettuce plants and their biological value.
Intervention effect Foliar stevia leaf extract significantly increased photosynthetic pigment, sugar and vitamin C content of lettuce.
Intervention effect Foliar stevia leaf extract tended to decrease nitrate content of lettuce.
Recommendation The authors recommend foliar application of the stevia leaf extract at 1:50 and 1:100 dilutions.
Recommendation The authors conclude the stevia leaf extract can be used as a safe plant growth stimulant.

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