Abstract
The nutritional functions of boron were investigated in improving rice growth and yield, both in solution and soil culture environments. Three rice cultivars [viz., KS-282 (salt-tolerant), BG402-4 (mixed behavior) and IR-28 (salt-sensitive)] of differential salinity tolerant were used to investigate the ameliorative nutritional aspects of boron. Boron was applied @ 25, 50, 100, 200, 400 and 800ng B mL in the presence (80 mol m) and absence (0 mol m) of NaCl salinity whereas in solution culture, B was applied @ 1.5, 3.0 and 6.0 kg ha artificially to prepare saline (ECe 9.0 d Sm, SAR 5.46, pHs 7.8), and saline-sodic soils (ECe 9.0 d Sm, SAR 28.2, pHs 8.2). Application of B improved all growth parameters i.e., tillering capacity, shoot and root length, and shoot and root weight because of external B application @ 200-400ng mL in solution culture in the presence and absence of NaCl salinity. In shoot Na and Cl decreased; whereas K concentration and K : Na ratio improved because of B supplied to saline medium. The ameliorative effect on paddy and straw yield and paddy: straw ratio was recorded at all external B supplied as compared to control. The highest improvement was recorded at 1.5kg B ha in the saline and saline sodic soils. Nevertheless the highest B application @ 6 kg B ha had shown an adverse affect on paddy and straw production in saline sodic soils in all the three cultivars as compared with all other B rates and control. The beneficial effect of B was due to reduced shoot Na and Cl concentration and better ratio of K and Na in shoot. Seed setting was improved in all the three cultivars because of external B supply to saline and saline sodic soils.
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Claims 7
Claim · model-written summary
Boron at 200-400ng mL improved rice tillering and shoot and root length and weight in solution culture with or without NaCl.
- Taxon
- rice
Oryza sativat0 - Treatment
- external B application @ 200-400ng mLe0
- Outcome
- tillering capacity, shoot and root length, and shoot and root weighte0
- Direction
- improvede0
- Setting
- solution culturee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of B improved all growth parameters i.e., tillering capacity, shoot and root length, and shoot and root weight because of external B application @ 200-400ng mL in solution culture in the presence and absence of NaCl salinity”
t0“rice”
Claim · model-written summary
Boron supplied to saline medium decreased shoot Na and Cl.
- Taxon
- riceOryza sativat0
- Treatment
- B supplied to saline mediume0
- Outcome
- shoot Na and Cle0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In shoot Na and Cl decreased; whereas K concentration and K : Na ratio improved because of B supplied to saline medium”
t0“rice”
Claim · model-written summary
Boron supplied to saline medium improved shoot K concentration and K : Na ratio.
- Taxon
- riceOryza sativat0
- Treatment
- B supplied to saline mediume0
- Outcome
- K concentration and K : Na ratioe0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In shoot Na and Cl decreased; whereas K concentration and K : Na ratio improved because of B supplied to saline medium”
t0“rice”
Claim · model-written summary
Boron improved paddy and straw yield and paddy: straw ratio compared with control.
- Taxon
- riceOryza sativat0
- Treatment
- all external B suppliede0
- Outcome
- paddy and straw yield and paddy: straw ratioe0
- Direction
- ameliorativee0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ameliorative effect on paddy and straw yield and paddy: straw ratio was recorded at all external B supplied as compared to control”
t0“rice”
Claim · model-written summary
The greatest improvement was at 1.5kg B ha in saline and saline sodic soils.
- Taxon
- riceOryza sativat0
- Treatment
- 1.5kg B hae0
- Outcome
- improvemente0
- Direction
- higheste0
- Setting
- saline and saline sodic soilse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest improvement was recorded at 1.5kg B ha in the saline and saline sodic soils”
t0“rice”
Claim · model-written summary
Boron at 6 kg B ha adversely affected paddy and straw production in saline sodic soils across the three cultivars.
- Taxon
- riceOryza sativat0
- Treatment
- 6 kg B hae0
- Outcome
- paddy and straw productione0
- Direction
- adverse affecte0
- Comparator
- all other B rates and controle0
- Setting
- saline sodic soilse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest B application @ 6 kg B ha had shown an adverse affect on paddy and straw production in saline sodic soils in all the three cultivars as compared with all other B rates and control”
t0“rice”
Claim · model-written summary
External boron improved seed setting in all three cultivars in saline and saline sodic soils.
- Taxon
- riceOryza sativat0
- Treatment
- external B supplye0
- Outcome
- Seed settinge0
- Direction
- improvede0
- Setting
- saline and saline sodic soilse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed setting was improved in all the three cultivars because of external B supply to saline and saline sodic soils”
t0“rice”
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