Abstract
The objective of this work was to study the effect of foliar boric acid (BA) or sodium borate (SB) sprays on rice plants subjected to high daytime temperature. The established treatments were the following: i) seedlings with heat stress (40 °C) and treated with foliar SB sprays at three rates 25, 50 or 100 mg of SB L−1, ii) seedlings with heat stress and with foliar BA sprays at three rates 25, 50 or 100 mg of BA L−1, iii) seedlings without heat stress (28 °C) and foliar boron (B) sprays (absolute control-AB) and iv) seedlings with heat stress and any foliar B compounds treatments (HT), resulting a total of eight group of treatments (AB, HT, SB25, SB50, SB100, BA25, BA50 and BA100). The results showed that, in heat stress condition, foliar BA (25, 50 or 100 mg L−1, respectively) or SB (50 mg L−1) sprays significantly increased the values of net photosynthesis compared to untreated plants (19.7 µmol CO2 m−2 s−1 with B 14.4 µmol CO2 m−2 s−1 without B). The foliar B compounds sprays caused an increase on photochemical efficiency of PSII (0.76 with B vs. 0.72 without B) and lower oxidative damage (expressed as leaf malondialdehyde and proline production) in seedlings under heat stress. The results in the present study allow concluding that the use of B (BA or SB) can be considered as an agronomic strategy to mitigate the negative impact of heat stress in rice when high daytime stress periods are expected in rice areas.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 4
Claim · model-written summary
Foliar BA or SB sprays significantly increased net photosynthesis of heat-stressed rice compared with untreated plants.
- Taxon
- rice (Oryza sativa L.)
Oryza sativat0 - Treatment
- foliar BA (25, 50 or 100 mg L−1, respectively) or SB (50 mg L−1) sprayse1
- Outcome
- net photosynthesise1
- Direction
- significantly increasede1
- Value
- 19.7 µmol CO2 m−2 s−1e1
- Qualifier
- 14.4 µmol CO2 m−2 s−1 without Be1
- Comparator
- untreated plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in rice (Oryza sativa L.)”
e1“foliar BA (25, 50 or 100 mg L−1, respectively) or SB (50 mg L−1) sprays significantly increased the values of net photosynthesis compared to untreated plants (19.7 µmol CO2 m−2 s−1 with B 14.4 µmol CO2 m−2 s−1 without B)”
Claim · model-written summary
Foliar B compound sprays increased photochemical efficiency of PSII in heat-stressed rice (0.76 with B vs 0.72 without B).
- Taxon
- rice (Oryza sativa L.)Oryza sativat0
- Treatment
- foliar B compounds sprayse2
- Outcome
- photochemical efficiency of PSIIe2
- Direction
- an increasee2
- Value
- 0.76 with B vs. 0.72 without Be2
- Comparator
- without Be2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in rice (Oryza sativa L.)”
e2“The foliar B compounds sprays caused an increase on photochemical efficiency of PSII (0.76 with B vs. 0.72 without B) and lower oxidative damage (expressed as leaf malondialdehyde and proline production) in seedlings under heat stress”
Claim · model-written summary
Foliar B compound sprays lowered oxidative damage in heat-stressed rice seedlings.
- Taxon
- rice (Oryza sativa L.)Oryza sativat0
- Treatment
- foliar B compounds sprayse2
- Outcome
- oxidative damagee2
- Direction
- lowere2
- Qualifier
- expressed as leaf malondialdehyde and proline productione2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in rice (Oryza sativa L.)”
e2“The foliar B compounds sprays caused an increase on photochemical efficiency of PSII (0.76 with B vs. 0.72 without B) and lower oxidative damage (expressed as leaf malondialdehyde and proline production) in seedlings under heat stress”
Claim · model-written summary
Foliar B (BA or SB) can be considered an agronomic strategy to mitigate heat stress in rice in high daytime temperature areas.
- Taxon
- riceOryza sativae3
- Treatment
- the use of B (BA or SB)e3
- Outcome
- agronomic strategy to mitigate the negative impact of heat stresse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“the use of B (BA or SB) can be considered as an agronomic strategy to mitigate the negative impact of heat stress in rice when high daytime stress periods are expected in rice areas”
The same questions in other papers
N-benzyladenine · physiology: photosynthesis · Oryza sativa (rice)Results agree
5 papers in the same direction as this paper
- positive
- positive
- positive
2 papers more in this group
See all 6 papers →application · physiology: oxidative · Oryza sativa (rice)Positive and negative results
34 papers in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
- positive
32 papers more in this group
See all 36 papers →application · physiology: photosynthesis · Oryza sativa (rice)Positive and negative results
45 papers in the same direction as this paper · 1 in the opposite direction
- positive
- positive
- no effect
43 papers more in this group
See all 47 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.