Abstract
Results of a field research to study the effects of biofertilizers applied by fertigation on gas exchange, yield and quality parameters of broccoli are reported. The trial has been carried out in winter period in Valenzano (BA, Southern Italy) on a sandy clay-loam soil. Three levels of organic fertilization (0, 60 and 120 kg ha-1 of NewFert based on fleshing hydrolyzed, on 4 cultivar of broccoli (‘Marathon’, ‘Lord’, ‘Chevalier’, ‘Iron’), were compared. For the ‘Marathon’ was compared also seedlings grown conventionally with seedlings organically grown (‘Marathon’ org.). Gas exchange (net assimilation – A, transpiration – T, stomatal conductance – gs), water use efficiency (WUE), yield and quality were detected. The different fertilizer treatments have not affected significantly yield and quality with the exception of the diameter of the inflorescence which increased with the increase of the dose of biofertilizer and ascorbic acid content that, instead, was reduced. The cultivars showed good qualitative characteristics especially nitrate content that did not exceed 350 mg kg-1 f.w. The most productive cultivar was ‘Chevalier’ (11.8 t ha-1). Nitrate content was low, particularly in ‘Lord’ and ‘Marathon’ (160.9 mg kg-1 f.w.), while a high level of ascorbic acid was recorded for ‘Chevalier’ and ‘Iron’ (71.9 mg 100 g-1 f.w.). ‘Chevalier’ and ‘Iron’ presented the best characteristics for what concern colour, more green and shiny. The type of seedlings did not result in significant effects on gas exchange, yield and quality.
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Claims 9
Claim · model-written summary
Biofertilizer treatments did not significantly affect broccoli yield and quality
- Taxon
- broccoli
Brassica oleracea var. italicae0 - Treatment
- fertilizer treatmentse1
- Outcome
- yield and qualitye1
- Direction
- not affected significantlye1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“quality parameters of broccoli are reported”
e1“The different fertilizer treatments have not affected significantly yield and quality with the exception of the diameter of the inflorescence which increased with the increase of the dose of biofertilizer and ascorbic acid content that, instead, was reduced”
Claim · model-written summary
Biofertilizer dose increased broccoli inflorescence diameter
- Taxon
- broccoliBrassica oleracea var. italicae0
- Treatment
- biofertilizere1
- Outcome
- diameter of the inflorescencee1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“quality parameters of broccoli are reported”
e1“The different fertilizer treatments have not affected significantly yield and quality with the exception of the diameter of the inflorescence which increased with the increase of the dose of biofertilizer and ascorbic acid content that, instead, was reduced”
Claim · model-written summary
Biofertilizer dose reduced broccoli ascorbic acid content
- Taxon
- broccoliBrassica oleracea var. italicae0
- Treatment
- biofertilizere1
- Outcome
- ascorbic acid contente1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“quality parameters of broccoli are reported”
e1“The different fertilizer treatments have not affected significantly yield and quality with the exception of the diameter of the inflorescence which increased with the increase of the dose of biofertilizer and ascorbic acid content that, instead, was reduced”
Claim · model-written summary
Broccoli cultivars had nitrate content that did not exceed 350 mg/kg fresh weight
- Taxon
- broccoliBrassica oleracea var. italicae0
- Outcome
- nitrate contente2
- Value
- 350 mg kg-1 f.w.e2
- Qualifier
- did not exceede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“quality parameters of broccoli are reported”
e2“The cultivars showed good qualitative characteristics especially nitrate content that did not exceed 350 mg kg-1 f.w.”
Claim · model-written summary
Cultivar Chevalier was the most productive broccoli cultivar at 11.8 t/ha
- Taxon
- broccoliBrassica oleracea var. italicae0
- Material
- Chevaliere3
- Outcome
- productivee3
- Value
- 11.8 t ha-1e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“quality parameters of broccoli are reported”
e3“The most productive cultivar was ‘Chevalier’ (11.8 t ha-1)”
Claim · model-written summary
Nitrate content was low in cultivars Lord and Marathon, at 160.9 mg/kg fresh weight
- Taxon
- broccoliBrassica oleracea var. italicae0
- Material
- ‘Lord’ and ‘Marathon’e4
- Outcome
- Nitrate contente4
- Direction
- lowe4
- Value
- 160.9 mg kg-1 f.w.e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“quality parameters of broccoli are reported”
e4“Nitrate content was low, particularly in ‘Lord’ and ‘Marathon’ (160.9 mg kg-1 f.w.)”
Claim · model-written summary
Cultivars Chevalier and Iron had a high ascorbic acid level of 71.9 mg/100 g fresh weight
- Taxon
- broccoliBrassica oleracea var. italicae0
- Material
- ‘Chevalier’ and ‘Iron’e5
- Outcome
- ascorbic acide5
- Direction
- high levele5
- Value
- 71.9 mg 100 g-1 f.w.e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“quality parameters of broccoli are reported”
e5“a high level of ascorbic acid was recorded for ‘Chevalier’ and ‘Iron’ (71.9 mg 100 g-1 f.w.)”
Claim · model-written summary
Cultivars Chevalier and Iron had the best colour characteristics, greener and shinier
- Taxon
- broccoliBrassica oleracea var. italicae0
- Material
- ‘Chevalier’ and ‘Iron’e6
- Outcome
- coloure6
- Qualifier
- more green and shinye6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“quality parameters of broccoli are reported”
e6“‘Chevalier’ and ‘Iron’ presented the best characteristics for what concern colour, more green and shiny”
Claim · model-written summary
Seedling type did not significantly affect gas exchange, yield or quality of broccoli
- Taxon
- broccoliBrassica oleracea var. italicae0
- Treatment
- type of seedlingse1
- Outcome
- gas exchange, yield and qualitye1
- Direction
- did not result in significant effectse1
- Comparator
- seedlings grown conventionallye2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“quality parameters of broccoli are reported”
e1“The type of seedlings did not result in significant effects on gas exchange, yield and quality”
e2“For the ‘Marathon’ was compared also seedlings grown conventionally with seedlings organically grown”
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