Abstract
To mitigate the effects of drought stress on fatty acid compositions and seed germination, various hypothesis have been studied by researchers. In this study, the field experiments were conducted in two cropping seasons (2020–2021) to investigate the effect of micronutrients on some characteristics of canola cultivars under late-season drought stress conditions. The experiments were arranged in a factorial split-plot design with three replications. The main factors included irrigation regimes (regular irrigation and irrigation interruption at the flowering stage) and foliar applications of Zn and Mn after rosette stage (F1: none application, F2: ZnSO4, F3: MnSO4, and F4: ZnSO4+MnSO4). The third factor included three cultivars, including Nima, R15 and KS7, as subfactor. Limited irrigation at flowering stage reduced length of seedling (25% and 17%), weight of seedling (30% and 14%), and seed yield (42% and 29) in first and second year, respectively. Irrigation withholding at flowering stage reduced seed yield by 37, 27, and 42% in R15, Nima and KS7 cultivars, respectively. Based on the current experimental data, irrigation withholding at flowering stage caused severe stress to the plants, especially those with long-term growth periods such as R15 and KS7. By contrast, the minimum yield loss was obtained from Nima cultivar, an early mature cultivar. Overall, it is recommended R15 cultivar for normal irrigation and Nima cultivar for a drought environment when considered the acceptable seed yield in new plants. In general, it is suggested that a suitable performance of canola seeds is achieved by foliar application of manganese and zinc.
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Claims 13
Claim · model-written summary
Flowering-stage irrigation limitation reduced seedling length by 25% in year one.
- Taxon
- canola
.jpg?width=60)
Brassica napus var. napust0 - Treatment
- Limited irrigation at flowering stagee0
- Outcome
- length of seedlinge0
- Direction
- reducede0
- Value
- 25%e0
- Qualifier
- firste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Limited irrigation at flowering stage reduced length of seedling (25% and 17%), weight of seedling (30% and 14%), and seed yield (42% and 29) in first and second year, respectively.”
t0“canola”
Claim · model-written summary
Flowering-stage irrigation limitation reduced seedling length by 17% in year two.
- Taxon
- canolaBrassica napus var. napust0
- Treatment
- Limited irrigation at flowering stagee0
- Outcome
- length of seedlinge0
- Direction
- reducede0
- Value
- 17%e0
- Qualifier
- second yeare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Limited irrigation at flowering stage reduced length of seedling (25% and 17%), weight of seedling (30% and 14%), and seed yield (42% and 29) in first and second year, respectively.”
t0“canola”
Claim · model-written summary
Flowering-stage irrigation limitation reduced seedling weight by 30% in year one.
- Taxon
- canolaBrassica napus var. napust0
- Treatment
- Limited irrigation at flowering stagee0
- Outcome
- weight of seedlinge0
- Direction
- reducede0
- Value
- 30%e0
- Qualifier
- firste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Limited irrigation at flowering stage reduced length of seedling (25% and 17%), weight of seedling (30% and 14%), and seed yield (42% and 29) in first and second year, respectively.”
t0“canola”
Claim · model-written summary
Flowering-stage irrigation limitation reduced seedling weight by 14% in year two.
- Taxon
- canolaBrassica napus var. napust0
- Treatment
- Limited irrigation at flowering stagee0
- Outcome
- weight of seedlinge0
- Direction
- reducede0
- Value
- 14%e0
- Qualifier
- second yeare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Limited irrigation at flowering stage reduced length of seedling (25% and 17%), weight of seedling (30% and 14%), and seed yield (42% and 29) in first and second year, respectively.”
t0“canola”
Claim · model-written summary
Flowering-stage irrigation limitation reduced seed yield by 42% in year one.
- Taxon
- canolaBrassica napus var. napust0
- Treatment
- Limited irrigation at flowering stagee0
- Outcome
- seed yielde0
- Direction
- reducede0
- Value
- 42%e0
- Qualifier
- firste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Limited irrigation at flowering stage reduced length of seedling (25% and 17%), weight of seedling (30% and 14%), and seed yield (42% and 29) in first and second year, respectively.”
t0“canola”
Claim · model-written summary
Flowering-stage irrigation limitation reduced seed yield by 29 in year two, as reported.
- Taxon
- canolaBrassica napus var. napust0
- Treatment
- Limited irrigation at flowering stagee0
- Outcome
- seed yielde0
- Direction
- reducede0
- Value
- 29e0
- Qualifier
- second yeare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Limited irrigation at flowering stage reduced length of seedling (25% and 17%), weight of seedling (30% and 14%), and seed yield (42% and 29) in first and second year, respectively.”
t0“canola”
Claim · model-written summary
Irrigation withholding reduced R15 seed yield by 37%.
- Taxon
- canolaBrassica napus var. napust0
- Material
- R15e0
- Treatment
- Irrigation withholding at flowering stagee0
- Outcome
- seed yielde0
- Direction
- reducede0
- Value
- 37e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation withholding at flowering stage reduced seed yield by 37, 27, and 42% in R15, Nima and KS7 cultivars, respectively.”
t0“canola”
Claim · model-written summary
Irrigation withholding reduced Nima seed yield by 27%.
- Taxon
- canolaBrassica napus var. napust0
- Material
- Nimae0
- Treatment
- Irrigation withholding at flowering stagee0
- Outcome
- seed yielde0
- Direction
- reducede0
- Value
- 27e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation withholding at flowering stage reduced seed yield by 37, 27, and 42% in R15, Nima and KS7 cultivars, respectively.”
t0“canola”
Claim · model-written summary
Irrigation withholding reduced KS7 seed yield by 42%.
- Taxon
- canolaBrassica napus var. napust0
- Material
- KS7e0
- Treatment
- Irrigation withholding at flowering stagee0
- Outcome
- seed yielde0
- Direction
- reducede0
- Value
- 42%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation withholding at flowering stage reduced seed yield by 37, 27, and 42% in R15, Nima and KS7 cultivars, respectively.”
t0“canola”
Claim · model-written summary
Nima had the minimum yield loss under irrigation withholding.
- Taxon
- canolaBrassica napus var. napust0
- Material
- Nimae0
- Treatment
- yield losse0
- Outcome
- yield losse0
- Direction
- minimume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the minimum yield loss was obtained from Nima cultivar, an early mature cultivar.”
t0“canola”
Claim · model-written summary
Authors recommend R15 under normal irrigation.
- Taxon
- canolaBrassica napus var. napust0
- Material
- R15e0
- Outcome
- R15 cultivar for normal irrigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it is recommended R15 cultivar for normal irrigation and Nima cultivar for a drought environment when considered the acceptable seed yield in new plants.”
t0“canola”
Claim · model-written summary
Authors recommend Nima in drought environments.
- Taxon
- canolaBrassica napus var. napust0
- Material
- Nimae0
- Outcome
- Nima cultivar for a drought environmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it is recommended R15 cultivar for normal irrigation and Nima cultivar for a drought environment when considered the acceptable seed yield in new plants.”
t0“canola”
Claim · model-written summary
Authors suggest foliar manganese and zinc for suitable canola seed performance.
- Taxon
- canolaBrassica napus var. napust0
- Treatment
- foliar application of manganese and zince0
- Outcome
- suitable performance of canola seedse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a suitable performance of canola seeds is achieved by foliar application of manganese and zinc.”
t0“canola”
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