Abstract
The ontogenesis and yield formation in crop plants are modified by environmental conditions. Due to climatic change detected over two decades, the harmful influence of abiotic factors is increasing. One of the most threatening issues reducing plant productivity is drought stress. The strength of plant response to water shortages could differ depending on the strength of the drought stress, type of crop, genetic background, presence of additional stresses, and stage of plant development. There are examples of sexual hybridization between crop plants like oat (Avena sativa L.) and maize (Zea mays L.) with which stable fertile hybrids were generated. Additional maize chromosomes in oat plants (oat × maize addition, OMA) often infer morphological and physiological (e.g., PS II photosystem activity and chlorophyll production) changes modulated by the interaction of certain maize chromosomes added to the oat genome. The aim of the research was to evaluate the chosen physiological, biochemical, and agronomic parameters of OMA plants subjected to soil drought. Analysis of variance indicated that the main effects of genotype as well as treatment × genotype interaction were significant for all the traits studied (photosynthetic pigment content, selected PSII indices, mass of stem, number of grains/plant, mass of grains/plant). Most of the examined lines severely reduced PSII photosystem parameters, pigment content, and yield-related traits under drought stress. The results indicated that two lines (9 and 78b) retained high yielding potential under drought stress compared to commercial cv. Bingo.
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Claims 6
Claim · model-written summary
Genotype and treatment-by-genotype interaction were significant for all measured traits.
- Taxon
- oat
Avena sativat0 - Material
- genotypee0
- Outcome
- all the traits studiede0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the main effects of genotype as well as treatment × genotype interaction were significant for all the traits studied (photosynthetic pigment content, selected PSII indices, mass of stem, number of grains/plant, mass of grains/plant)”
t0“Oat”
Claim · model-written summary
Most OMA lines reduced PSII parameters under drought.
- Taxon
- oatAvena sativat0
- Treatment
- drought stresse0
- Outcome
- PSII photosystem parameterse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Most of the examined lines severely reduced PSII photosystem parameters, pigment content, and yield-related traits under drought stress”
t0“Oat”
Claim · model-written summary
Most OMA lines reduced pigment content under drought.
- Taxon
- oatAvena sativat0
- Treatment
- drought stresse0
- Outcome
- pigment contente0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Most of the examined lines severely reduced PSII photosystem parameters, pigment content, and yield-related traits under drought stress”
t0“Oat”
Claim · model-written summary
Most OMA lines reduced yield traits under drought.
- Taxon
- oatAvena sativat0
- Treatment
- drought stresse0
- Outcome
- yield-related traitse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Most of the examined lines severely reduced PSII photosystem parameters, pigment content, and yield-related traits under drought stress”
t0“Oat”
Claim · model-written summary
OMA line 9 retained high yielding potential under drought relative to Bingo.
- Taxon
- oatAvena sativat0
- Material
- 9e0
- Treatment
- drought stresse0
- Outcome
- high yielding potentiale0
- Comparator
- commercial cv. Bingoe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two lines (9 and 78b) retained high yielding potential under drought stress compared to commercial cv. Bingo”
t0“Oat”
Claim · model-written summary
OMA line 78b retained high yielding potential under drought relative to Bingo.
- Taxon
- oatAvena sativat0
- Material
- 78be0
- Treatment
- drought stresse0
- Outcome
- high yielding potentiale0
- Comparator
- commercial cv. Bingoe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two lines (9 and 78b) retained high yielding potential under drought stress compared to commercial cv. Bingo”
t0“Oat”
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