Abstract
Abstract Although many states recommend boron (B) fertilizer for many field crops, information about B toxicity of canola is lacking. This experiment was carried out at Central Anatolia, Turkey from 2002 to 2003, to determine genotypic range in B efficiency of eight spring canola cultivars, to identify the B-inefficient cultivars and to identify specific responses. The cultivars were grown under B moderate deficiency (extractable B 0.56 mg kg−1) and toxic B applied (15 kg B ha−1) conditions. According to the results, seed yield varied significantly among the cultivars and B application decreased the seed yield by 31% on average. Also, toxic B application reduced protein and oil contents similar to seed yield, and increased leaf B concentration in all varieties. This study has shown that leaf B concentration has increased considerably when B is applied to Pactol and Star cultivars, but seed yield of +B and −B has not shown significantly a change. It is possible to say that Star and Pactol—which have not been affected by the toxic B application—are genotypes that are tolerant to B toxicity and may be cultivated at B toxic lands. Keywords: boron toxicityinteractionoil ratioprotein ratioseed yieldcanola ACKNOWLEDGMENTS The financial support for this study was provided by the Turkish State Planning Organization (DPT) (Project No. 1999 K120560). The assistance of Dr. Fatma Gökmen in soil analysis, and Mr. Nesim Dursun and Mr. Ali Kahraman in the analysis of B by ICP is gratefully acknowledged.
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Claims 9
Claim · model-written summary
Seed yield differed significantly among canola cultivars.
- Taxon
- CANOLA
.jpg?width=60)
Brassica napus var. napust0 - Material
- cultivarse0
- Outcome
- seed yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“seed yield varied significantly among the cultivars”
t0“SPRING CANOLA CULTIVARS”
Claim · model-written summary
Boron application decreased average canola seed yield by 31%.
- Taxon
- CANOLABrassica napus var. napust0
- Treatment
- B applicatione0
- Outcome
- seed yielde0
- Direction
- decreasede0
- Value
- 31%e0
- Comparator
- B moderate deficiencye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“B application decreased the seed yield by 31% on average”
e1“The cultivars were grown under B moderate deficiency (extractable B 0.56 mg kg−1) and toxic B applied (15 kg B ha−1) conditions”
t0“CANOLA”
Claim · model-written summary
Toxic boron reduced protein content in canola.
- Taxon
- CANOLABrassica napus var. napust0
- Treatment
- toxic B applicatione0
- Outcome
- proteine0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“toxic B application reduced protein and oil contents similar to seed yield”
t0“CANOLA”
Claim · model-written summary
Toxic boron reduced oil content in canola.
- Taxon
- CANOLABrassica napus var. napust0
- Treatment
- toxic B applicatione0
- Outcome
- oil contentse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“toxic B application reduced protein and oil contents similar to seed yield”
t0“CANOLA”
Claim · model-written summary
Toxic boron increased leaf boron concentration in all canola varieties.
- Taxon
- CANOLABrassica napus var. napust0
- Organ / stage
- leafe0
- Treatment
- toxic B applicatione1
- Outcome
- leaf B concentratione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased leaf B concentration in all varieties”
e1“toxic B application reduced protein and oil contents similar to seed yield”
t0“CANOLA”
Claim · model-written summary
Applied boron considerably increased leaf boron concentration in Pactol.
- Taxon
- CANOLABrassica napus var. napust0
- Material
- Pactole0
- Treatment
- B is appliede0
- Outcome
- leaf B concentratione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“leaf B concentration has increased considerably when B is applied to Pactol and Star cultivars”
t0“CANOLA”
Claim · model-written summary
Applied boron considerably increased leaf boron concentration in Star.
- Taxon
- CANOLABrassica napus var. napust0
- Material
- Stare0
- Treatment
- B is appliede0
- Outcome
- leaf B concentratione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“leaf B concentration has increased considerably when B is applied to Pactol and Star cultivars”
t0“CANOLA”
Claim · model-written summary
Seed yield of Pactol and Star did not change significantly between boron conditions.
- Taxon
- CANOLABrassica napus var. napust0
- Material
- Pactol and Star cultivarse1
- Outcome
- seed yielde0
- Direction
- a changee0
- Comparator
- −Be0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed yield of +B and −B has not shown significantly a change”
e1“Pactol and Star cultivars”
t0“CANOLA”
Claim · model-written summary
The authors suggest Pactol and Star can be cultivated on boron-toxic land.
- Taxon
- CANOLABrassica napus var. napust0
- Material
- Star and Pactole0
- Outcome
- may be cultivated at B toxic landse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Star and Pactol—which have not been affected by the toxic B application—are genotypes that are tolerant to B toxicity and may be cultivated at B toxic lands”
t0“CANOLA”
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