Abstract
ABSTRACT A total of 11 genotypes from the collection of 101 bread wheat genotypes, with desirable traits in terms of increased tolerance to drought, were chosen for parents and eight crosses were performed. Number of seminal roots (NSR), total root length (TRL), root dry mass (RDM), number of shoots per plant (NS), main shoot length (MSL), shoot dry mass (SDM), number of leaves per plant (NL), leaf area per plant (LA), leaf dry mass (LDM), aboveground dry mass (ADM), SDM/LDM, RDM/ADM were analysed at the boot stage (Z45). The F1 progeny had on average higher mean values ( P < 0.001) than parents for four traits: RDM, NS, LA and RDM/ADM. The highest broad sense heritability values were determined for RDM (97.6%) and NSR (93.9%). Factor analysis indicated that a large root system, higher RDM and TRL are associated with higher NS, NL, LA and LDM. For Euclid x CHI‐4 and WWBMC2 x Ingenio combinations the highest heterosis values were observed for TRL (34.1%) and SDM (23.7%), for RDM (28.6%) and LA (26.8%), respectively. PEG‐induced drought stress in the seedling stage, in most of the new germplasm, caused an increased redistribution of dry matter in the root compared to the stem.
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Claims 10
Claim · model-written summary
F1 wheat progeny had higher mean root dry mass, shoot number and leaf area than parents.
- Taxon
- bread wheat
Triticum aestivumt0 - Material
- F1 progenye0
- Outcome
- RDM, NS, LAe0
- Direction
- highere0
- Qualifier
- P < 0.001e0
- Comparator
- parentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The F1 progeny had on average higher mean values ( P < 0.001) than parents for four traits: RDM, NS, LA and RDM/ADM”
t0“bread wheat”
Claim · model-written summary
F1 wheat progeny had higher RDM/ADM than parents.
- Taxon
- bread wheatTriticum aestivumt0
- Material
- F1 progenye0
- Outcome
- RDM/ADMe0
- Direction
- highere0
- Comparator
- parentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The F1 progeny had on average higher mean values ( P < 0.001) than parents for four traits: RDM, NS, LA and RDM/ADM”
t0“bread wheat”
Claim · model-written summary
Root dry mass had the highest broad-sense heritability at 97.6%.
- Taxon
- bread wheatTriticum aestivumt0
- Outcome
- broad sense heritability valuese0
- Value
- 97.6%e0
- Qualifier
- RDMe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest broad sense heritability values were determined for RDM (97.6%) and NSR (93.9%)”
t0“bread wheat”
Claim · model-written summary
Number of seminal roots had broad-sense heritability of 93.9%.
- Taxon
- bread wheatTriticum aestivumt0
- Outcome
- broad sense heritability valuese0
- Value
- 93.9%e0
- Qualifier
- NSRe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest broad sense heritability values were determined for RDM (97.6%) and NSR (93.9%)”
t0“bread wheat”
Claim · model-written summary
Larger root systems, root dry mass and total root length were associated with greater shoot number, leaf number, leaf area and leaf dry mass.
- Taxon
- bread wheatTriticum aestivumt0
- Organ / stage
- root systeme0
- Outcome
- NS, NL, LA and LDMe0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a large root system, higher RDM and TRL are associated with higher NS, NL, LA and LDM”
t0“bread wheat”
Claim · model-written summary
Euclid x CHI‐4 showed 34.1% heterosis for total root length.
- Taxon
- bread wheatTriticum aestivumt0
- Material
- Euclid x CHI‐4e0
- Outcome
- heterosis valuese0
- Value
- 34.1%e0
- Qualifier
- TRLe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For Euclid x CHI‐4 and WWBMC2 x Ingenio combinations the highest heterosis values were observed for TRL (34.1%) and SDM (23.7%), for RDM (28.6%) and LA (26.8%), respectively”
t0“bread wheat”
Claim · model-written summary
Euclid x CHI‐4 showed 23.7% heterosis for shoot dry mass.
- Taxon
- bread wheatTriticum aestivumt0
- Material
- Euclid x CHI‐4e0
- Outcome
- heterosis valuese0
- Value
- 23.7%e0
- Qualifier
- SDMe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For Euclid x CHI‐4 and WWBMC2 x Ingenio combinations the highest heterosis values were observed for TRL (34.1%) and SDM (23.7%), for RDM (28.6%) and LA (26.8%), respectively”
t0“bread wheat”
Claim · model-written summary
WWBMC2 x Ingenio showed 28.6% heterosis for root dry mass.
- Taxon
- bread wheatTriticum aestivumt0
- Material
- WWBMC2 x Ingenioe0
- Outcome
- heterosis valuese0
- Value
- 28.6%e0
- Qualifier
- RDMe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For Euclid x CHI‐4 and WWBMC2 x Ingenio combinations the highest heterosis values were observed for TRL (34.1%) and SDM (23.7%), for RDM (28.6%) and LA (26.8%), respectively”
t0“bread wheat”
Claim · model-written summary
WWBMC2 x Ingenio showed 26.8% heterosis for leaf area.
- Taxon
- bread wheatTriticum aestivumt0
- Material
- WWBMC2 x Ingenioe0
- Outcome
- heterosis valuese0
- Value
- 26.8%e0
- Qualifier
- LAe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For Euclid x CHI‐4 and WWBMC2 x Ingenio combinations the highest heterosis values were observed for TRL (34.1%) and SDM (23.7%), for RDM (28.6%) and LA (26.8%), respectively”
t0“bread wheat”
Claim · model-written summary
PEG-induced seedling drought increased dry-matter allocation to roots relative to stems in most new germplasm.
- Taxon
- bread wheatTriticum aestivumt0
- Material
- most of the new germplasme0
- Organ / stage
- seedling stagee0
- Treatment
- PEG‐induced drought stresse0
- Outcome
- redistribution of dry matter in the roote0
- Direction
- increasede0
- Comparator
- steme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PEG‐induced drought stress in the seedling stage, in most of the new germplasm, caused an increased redistribution of dry matter in the root compared to the stem”
t0“bread wheat”