Abstract
In our experiment the reaction of six sunflower hybrids of different genotypes (NK Oktava, ES Biba, ES Diagora, ES Ballistic, EGH 8925, PR 64 H 42) towards plant density has been investigated by different fungicide treatments in the crop-year of 2011 on a chernozem soil. In the crop-year of 2011 sunflower populations were infected by a significant Diaporthe helianthi disease. The extent of this infection was significantly enhanced by the increment of plant density. However, regarding the average of the hybrids and plant densities the two times executed fungicide treatment has decreased the infection rate by 22%. The most susceptible hybrid was the ES Biba. Contrarily, the hybrid ECH8925 proved to be the most resistant hybrid towards thisdisease according to our results. According to the results of the Pearson’s correlation analysis it has been revealed that stalk breakage and Diaporthe infection stand in a very close (r=0.782**) and middle close (r=0.523**) correlation resp. with plant density. The relationship between fungucude treatments and stalk breakage, just as Diaporthe infection showed to be middle and close respectively. Our results demonstrate the role of stalk and plate diseases (among them Diaporthe) in causing stalk breakage, for we have found a close positive correlation between stalk breakage and Diaporthe infection (r=0.624**) in our analysis.From the aspect of yield amount the optimal plant density varied between 45 000 and 55 000 plants per hectare. Fungucude treatments enabled not only the use of higher plants densities, but they had a yield increasing effect as well. In the crop-year of 2011 the highest yield (4 559 kg ha-1) on a chernozem soil has been measured in case of the hybrid ECH8925.
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Claims 10
Claim · model-written summary
Higher plant density significantly enhanced Diaporthe infection.
- Taxon
- sunflower
Helianthus annuust0 - Treatment
- increment of plant densitye0
- Outcome
- this infectione0
- Direction
- enhancede0
Not reportedInteractor
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sunflower hybrids”
e0“The extent of this infection was significantly enhanced by the increment of plant density.”
Claim · model-written summary
Two fungicide applications decreased infection rate by 22%.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- two times executed fungicide treatmente0
- Outcome
- infection ratee0
- Direction
- decreasede0
- Value
- 22%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sunflower hybrids”
e0“the two times executed fungicide treatment has decreased the infection rate by 22%”
Claim · model-written summary
ES Biba was the most susceptible hybrid.
- Taxon
- sunflowerHelianthus annuust0
- Material
- ES Bibae0
- Outcome
- most susceptible hybride0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sunflower hybrids”
e0“The most susceptible hybrid was the ES Biba.”
Claim · model-written summary
ECH8925 was the most resistant hybrid.
- Taxon
- sunflowerHelianthus annuust0
- Material
- ECH8925e0
- Outcome
- most resistant hybride0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sunflower hybrids”
e0“the hybrid ECH8925 proved to be the most resistant hybrid towards thisdisease”
Claim · model-written summary
Stalk breakage correlated with plant density at r=0.782**.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- plant densitye0
- Outcome
- stalk breakagee0
- Value
- r=0.782**e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sunflower hybrids”
e0“stalk breakage and Diaporthe infection stand in a very close (r=0.782**) and middle close (r=0.523**) correlation resp. with plant density”
Claim · model-written summary
Diaporthe infection correlated with plant density at r=0.523**.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- plant densitye0
- Outcome
- Diaporthe infectione0
- Value
- r=0.523**e0
DiaportheNot reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sunflower hybrids”
e0“stalk breakage and Diaporthe infection stand in a very close (r=0.782**) and middle close (r=0.523**) correlation resp. with plant density”
Claim · model-written summary
Stalk breakage and Diaporthe infection correlated positively at r=0.624**.
- Taxon
- sunflowerHelianthus annuust0
- Outcome
- stalk breakagee0
- Direction
- positivee0
- Value
- r=0.624**e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sunflower hybrids”
e0“a close positive correlation between stalk breakage and Diaporthe infection (r=0.624**)”
Claim · model-written summary
Yield was optimal at 45 000 to 55 000 plants per hectare.
- Taxon
- sunflowerHelianthus annuust0
- Outcome
- optimal plant densitye0
- Value
- 45 000 and 55 000 plants per hectaree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sunflower hybrids”
e0“the optimal plant density varied between 45 000 and 55 000 plants per hectare”
Claim · model-written summary
Fungicide treatments increased yield.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- Fungucude treatmentse0
- Outcome
- yielde0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sunflower hybrids”
e0“Fungucude treatments enabled not only the use of higher plants densities, but they had a yield increasing effect as well.”
Claim · model-written summary
ECH8925 had the highest yield, 4 559 kg ha-1.
- Taxon
- sunflowerHelianthus annuust0
- Material
- ECH8925e0
- Outcome
- highest yielde0
- Value
- 4 559 kg ha-1e0
- Setting
- chernozem soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sunflower hybrids”
e0“the highest yield (4 559 kg ha-1) on a chernozem soil has been measured in case of the hybrid ECH8925”
The same questions in other papers
fungicide · disease · Helianthus annuus (common sunflower)Positive and negative results
5 papers in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- positive
4 papers more in this group
See all 8 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.