Abstract
The experiment was conducted in spring 2014 to evaluate the effect of defoliation on the quantitative and qualitative characteristics of sugar beet in Motahari research station located in the Kamal Shahr region in Karaj, Iran. The study was conducted in split plot factorial with completely randomized block design with four replications. The main factors included two planting dates viz 23 April, 2014 (suitable planting time) and 18 May, 2014 (Late planting) and the sub-factors included five levels of defoliation including stage of early cotyledon growth to two true leaves (2 leaves), the stage of plant deployment (about 12 leaves), mid-growth (about 32 leaves) and late season of growth (about 54 leaves) and another sub-factors included five levels of defoliation intensity of leaves included 25%, 50%, 75% and 100% of defoliation and non-defoliation stage (control) as randomized and factorial were considered. Result of study revealed that different planting dates have significant effect on the sugar percentage of root. In addition, the treatment of defoliation stage could have a significant effect on root yield and white sugar yield (p>0.01).The treatment of defoliation intensity had a significant effect on all three traits (p>0.01). In general, increase in the defoliation intensity negatively affects the root yield and significantly reduced the white sugar yield (compared to control). Among the various stages of defoliation, middle stages of the defoliation have least effect on the evaluated traits which indicated more sensitivity of this treatment during the growing season of plant.
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Claims 7
Claim · model-written summary
Planting date significantly affected root sugar percentage.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarist0 - Treatment
- different planting datese0
- Outcome
- sugar percentage of roote0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“different planting dates have significant effect on the sugar percentage of root.”
t0“sugar beet”
Claim · model-written summary
Defoliation stage significantly affected root yield.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- defoliation stagee0
- Outcome
- root yielde0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the treatment of defoliation stage could have a significant effect on root yield and white sugar yield (p>0.01).”
t0“sugar beet”
Claim · model-written summary
Defoliation stage significantly affected white sugar yield.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- defoliation stagee0
- Outcome
- white sugar yielde0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the treatment of defoliation stage could have a significant effect on root yield and white sugar yield (p>0.01).”
t0“sugar beet”
Claim · model-written summary
Defoliation intensity significantly affected all three traits.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- defoliation intensitye0
- Outcome
- all three traitse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The treatment of defoliation intensity had a significant effect on all three traits (p>0.01).”
t0“sugar beet”
Claim · model-written summary
Increasing defoliation intensity negatively affected root yield.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- increase in the defoliation intensitye0
- Outcome
- root yielde0
- Direction
- negatively affectse0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase in the defoliation intensity negatively affects the root yield and significantly reduced the white sugar yield (compared to control).”
t0“sugar beet”
Claim · model-written summary
Increasing defoliation intensity significantly reduced white sugar yield against control.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- increase in the defoliation intensitye0
- Outcome
- white sugar yielde0
- Direction
- reducede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase in the defoliation intensity negatively affects the root yield and significantly reduced the white sugar yield (compared to control).”
t0“sugar beet”
Claim · model-written summary
Middle defoliation stages had the least effect on evaluated traits.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- middle stages of the defoliatione0
- Outcome
- evaluated traitse0
- Direction
- least effecte0
- Comparator
- various stages of defoliatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among the various stages of defoliation, middle stages of the defoliation have least effect on the evaluated traits”
t0“sugar beet”
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