Abstract
The effect of osmotic and water stresses on various morphological traits was studied in eight experimental varieties of sunflower bred for Moroccan conditions or issued from interspecific hybridization with H. argophyllus or H. debilis. Seed yield of the same genotypes was also evaluated under rainfed and irrigated field conditions. Shoot and root growth were significantly reduced by osmotic stress (-0.6 and -1.0 MPa) induced with polyethylene glycol (PEG 6000). Considerable genotype variation was expressed for all traits. Significant genotype by stress interaction was observed for root dry weight and volume as well as seed yield. The morphological traits were not related to seed yield in the correlation and principal component analyses. Four genotypes issued from introgression with H. argophyllus were grouped and distinct from other genotypes according to hierarchical ascending classification. One genotype issued from introgression with H. debilis and three non-introgressed sunflower varieties were found to be very distinct from each other and from those introgressed with H. argophyllus.
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Claims 6
Claim · model-written summary
Osmotic stress induced with PEG reduced sunflower shoot and root growth significantly.
- Taxon
- sunflower
Helianthus annuuse0 - Treatment
- osmotic stresse1
- Outcome
- Shoot and root growthe1
- Direction
- reducede1
- Value
- -0.6 and -1.0 MPae1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in eight experimental varieties of sunflower bred for Moroccan conditions”
e1“Shoot and root growth were significantly reduced by osmotic stress (-0.6 and -1.0 MPa) induced with polyethylene glycol (PEG 6000)”
Claim · model-written summary
Sunflower genotypes differed considerably in all measured morphological traits.
- Taxon
- sunflowerHelianthus annuuse0
- Material
- genotypee2
- Outcome
- genotype variatione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in eight experimental varieties of sunflower bred for Moroccan conditions”
e2“Considerable genotype variation was expressed for all traits”
Claim · model-written summary
Genotype by stress interaction was significant for sunflower root dry weight and volume and for seed yield.
- Taxon
- sunflowerHelianthus annuuse0
- Material
- genotypee3
- Treatment
- stresse3
- Outcome
- root dry weight and volume as well as seed yielde3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in eight experimental varieties of sunflower bred for Moroccan conditions”
e3“Significant genotype by stress interaction was observed for root dry weight and volume as well as seed yield”
Claim · model-written summary
Morphological traits were not related to sunflower seed yield in correlation and principal component analyses.
- Taxon
- sunflowerHelianthus annuuse0
- Outcome
- morphological traitse4
- Comparator
- seed yielde4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in eight experimental varieties of sunflower bred for Moroccan conditions”
e4“The morphological traits were not related to seed yield in the correlation and principal component analyses”
Claim · model-written summary
Four sunflower genotypes introgressed with H. argophyllus grouped together and were distinct from other genotypes.
- Taxon
- sunflowerHelianthus annuuse0
- Material
- Four genotypes issued from introgression with H. argophylluse5
- Outcome
- grouped and distinct from other genotypese5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in eight experimental varieties of sunflower bred for Moroccan conditions”
e5“Four genotypes issued from introgression with H. argophyllus were grouped and distinct from other genotypes according to hierarchical ascending classification”
Claim · model-written summary
One sunflower genotype introgressed with H. debilis and three non-introgressed varieties were very distinct from each other and from the H. argophyllus introgressants.
- Taxon
- sunflowerHelianthus annuuse0
- Material
- One genotype issued from introgression with H. debilise6
- Outcome
- very distinct from each othere6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in eight experimental varieties of sunflower bred for Moroccan conditions”
e6“One genotype issued from introgression with H. debilis and three non-introgressed sunflower varieties were found to be very distinct from each other and from those introgressed with H. argophyllus”
The same questions in other papers
drought · growth · Helianthus annuus (common sunflower)Results differ
49 papers in the same direction as this paper · 9 in the opposite direction
- positive
- negative
- negative
55 papers more in this group
See all 59 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.