Abstract
With a view to assessing the quantitative and qualitative response of chinese cabbage (Brassica rapa var. pekinensis), grown under different hydroponic systems, a research was conducted to study the yield and healthy characteristics of Chinese cabbage, grown on sand culture and NFT system. The study was concerned with in particular the effect of the two systems on the dynamics of nitrate uptake, transport and accumulation in plant tissues. Based on the results obtained, and relative to the prevailing local conditions, the following considerations can be made: growing this species in hydroponics system (NFT) enables higher yields (about 9 kg m-2) to be achieved as compared to sand culture. This is related to the higher mean weight of tufts (1400 g against 990 g); the harvest period, however, is prolonged by about 20 days; Chinese cabbage, grown in the greenhouse for autumn production, was found to accumulate more nitrate 810230 to 2900 mg kg-1 f.w.) in leaf blades more than in ribs (370 to 800 mg kg-1); the protein content is far higher in the tissues of plants grown in NFT (2.16% f.w.) than on sand culture (1.52% f.w.), the same as total (blades+ribs) nitrate concentration (3700 mg kg-1 f.w. against 1400 mg kg-1 f.w.)
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Claims 6
Claim · model-written summary
NFT produced higher cabbage yield than sand culture, about 9 kg m-2.
- Taxon
- CHINESE CABBAGE
Brassica rapa subsp. pekinensist0 - Treatment
- hydroponics system (NFT)e0
- Outcome
- yieldse0
- Direction
- highere0
- Value
- about 9 kg m-2e0
- Comparator
- sand culturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“growing this species in hydroponics system (NFT) enables higher yields (about 9 kg m-2) to be achieved as compared to sand culture”
t0“CHINESE CABBAGE”
Claim · model-written summary
Mean tuft weight was higher in NFT than sand culture, 1400 g versus 990 g.
- Taxon
- CHINESE CABBAGEBrassica rapa subsp. pekinensist0
- Treatment
- NFTt0
- Outcome
- mean weight of tuftse0
- Direction
- highere0
- Value
- 1400 ge0
- Qualifier
- 990 ge0
- Comparator
- sand culturet0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher mean weight of tufts (1400 g against 990 g)”
t0“CHINESE CABBAGE GROWN ON SAND CULTURE AND NFT SYSTEM”
Claim · model-written summary
NFT prolonged harvest by about 20 days.
- Taxon
- CHINESE CABBAGEBrassica rapa subsp. pekinensist0
- Treatment
- NFT SYSTEMt0
- Outcome
- harvest periode0
- Direction
- prolongede0
- Value
- about 20 dayse0
- Comparator
- SAND CULTUREt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the harvest period, however, is prolonged by about 20 days”
t0“CHINESE CABBAGE GROWN ON SAND CULTURE AND NFT SYSTEM”
Claim · model-written summary
Autumn greenhouse cabbage accumulated more nitrate in leaf blades than ribs.
- Taxon
- Chinese cabbageBrassica rapa subsp. pekinensise0
- Organ / stage
- leaf bladese0
- Outcome
- nitratee0
- Direction
- moree0
- Value
- 2900 mg kg-1 f.w.e0
- Qualifier
- 370 to 800 mg kg-1e0
- Comparator
- ribse0
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chinese cabbage, grown in the greenhouse for autumn production, was found to accumulate more nitrate 810230 to 2900 mg kg-1 f.w.) in leaf blades more than in ribs (370 to 800 mg kg-1)”
Claim · model-written summary
Protein content was higher in NFT tissues than sand culture tissues, 2.16% versus 1.52% fresh weight.
- Taxon
- CHINESE CABBAGEBrassica rapa subsp. pekinensist0
- Treatment
- NFTe0
- Outcome
- protein contente0
- Direction
- far highere0
- Value
- 2.16% f.w.e0
- Qualifier
- 1.52% f.w.e0
- Comparator
- sand culturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the protein content is far higher in the tissues of plants grown in NFT (2.16% f.w.) than on sand culture (1.52% f.w.)”
t0“CHINESE CABBAGE”
Claim · model-written summary
Total nitrate concentration was higher in NFT than sand culture, 3700 versus 1400 mg kg-1 fresh weight.
- Taxon
- CHINESE CABBAGEBrassica rapa subsp. pekinensist0
- Treatment
- NFT SYSTEMt0
- Outcome
- total (blades+ribs) nitrate concentratione0
- Value
- 3700 mg kg-1 f.w.e0
- Qualifier
- 1400 mg kg-1 f.w.e0
- Comparator
- SAND CULTUREt0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total (blades+ribs) nitrate concentration (3700 mg kg-1 f.w. against 1400 mg kg-1 f.w.)”
t0“CHINESE CABBAGE GROWN ON SAND CULTURE AND NFT SYSTEM”
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See all 7 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.