Abstract
The efficiency of nanoparticles covered with type A gel and loaded with KH 2 PO 4 , as a source of P, was evaluated on growth, phosphorus concentration and accumulation, and photosynthesis-related parameters in rice plants ( Oryza sativa L. ssp. indica ) cv. Morelos A-2010, under greenhouse conditions. Plants were treated for 14 days with P concentrations equivalent to 50 and 100% of those established in the Yoshida nutrient solution. Sources of P were KH 2 PO 4 , nano-KH 2 PO 4 , and nano-KH 2 PO 4 with trypsin; control treatments were distilled water and nanoparticles with type A gel. The solutions were renewed every 7 d. Rice plants exhibited differential P absorption in function of the P source tested. P supplied by KH 2 PO 4 had a higher uptake rate than P supplied by nano-KH 2 PO 4 , alone or with trypsin. Nevertheless, nano-KH 2 PO 4 promoted higher physiological efficiency for P in both roots and shoots, which consequently induced higher biomass accumulation in these organs. P concentration in shoots, as well as P accumulation in shoots and roots, were positively correlated with the photosynthetic rate. Also, nano-KH 2 PO 4 increased instant water use efficiency in rice plants.
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Claims 6
Claim · model-written summary
Conventional KH 2 PO 4 had a higher P uptake rate than nano-KH 2 PO 4.
- Taxon
- Rice
Oryza sativat0 - Treatment
- KH 2 PO 4e0
- Outcome
- uptake ratee0
- Direction
- highere0
- Comparator
- nano-KH 2 PO 4e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“P supplied by KH 2 PO 4 had a higher uptake rate than P supplied by nano-KH 2 PO 4 , alone or with trypsin.”
t0“Rice”
Claim · model-written summary
Nano-KH 2 PO 4 increased physiological efficiency for P in roots and shoots.
- Taxon
- RiceOryza sativat0
- Organ / stage
- roots and shootse0
- Treatment
- nano-KH 2 PO 4e0
- Outcome
- physiological efficiency for Pe0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nevertheless, nano-KH 2 PO 4 promoted higher physiological efficiency for P in both roots and shoots, which consequently induced higher biomass accumulation in these organs.”
t0“Rice”
Claim · model-written summary
Nano-KH 2 PO 4 induced higher biomass accumulation in roots and shoots.
- Taxon
- RiceOryza sativat0
- Organ / stage
- roots and shootse0
- Treatment
- nano-KH 2 PO 4e0
- Outcome
- biomass accumulatione0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nevertheless, nano-KH 2 PO 4 promoted higher physiological efficiency for P in both roots and shoots, which consequently induced higher biomass accumulation in these organs.”
t0“Rice”
Claim · model-written summary
Shoot P concentration was positively correlated with photosynthetic rate.
- Taxon
- RiceOryza sativat0
- Organ / stage
- shootse0
- Outcome
- P concentratione0
- Direction
- positively correlatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“P concentration in shoots, as well as P accumulation in shoots and roots, were positively correlated with the photosynthetic rate.”
t0“Rice”
Claim · model-written summary
P accumulation in shoots and roots was positively correlated with photosynthetic rate.
- Taxon
- RiceOryza sativat0
- Organ / stage
- shoots and rootse0
- Outcome
- P accumulatione0
- Direction
- positively correlatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“P concentration in shoots, as well as P accumulation in shoots and roots, were positively correlated with the photosynthetic rate.”
t0“Rice”
Claim · model-written summary
Nano-KH 2 PO 4 increased instant water use efficiency.
- Taxon
- rice plantsOryza sativae0
- Treatment
- nano-KH 2 PO 4e0
- Outcome
- instant water use efficiencye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Also, nano-KH 2 PO 4 increased instant water use efficiency in rice plants.”
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