Abstract
The production of commercially acceptable wheat hybrids was expected soon after the discovery of the mechanism needed for hybrid seed production.Hybrid wheat has a large potential market of 30 million acres or more.It must be determined whether or not hybrids will yield significantly more than the high yielding conventional varieties. This study was initiated to determine what environmental factors interact with the fertility restorer genes in cytoplasmic male sterile restored wheat hybrids to give variability in expression of fertility under different environments.An additional objective was to determine whether pollen classification was as reliable in determining fertility as actual seed set. Some of the results of this investigation are: 1. Plastic-covered greenhouses are more favorable for fertility expression than glass greenhouses. 2. The increased sterility of hybrids grown in the glass greenhouse may be due to either higher temperature, higher light intensity, or a change in light quality. 3. A high degree of relationship was observed between seed set and viable pollen. Advisor: John W. Schmidt
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Claims 3
Claim · model-written summary
Plastic-covered greenhouses were more favorable for fertility expression than glass greenhouses.
- Taxon
- hybrid wheat
Triticum aestivume0 - Treatment
- Plastic-covered greenhousese1
- Outcome
- fertility expressione1
- Direction
- more favorablee1
- Comparator
- glass greenhousese1
- Setting
- greenhousese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hybrid wheat has a large potential market of 30 million acres or more”
e1“Plastic-covered greenhouses are more favorable for fertility expression than glass greenhouses”
Claim · model-written summary
Hybrids grown in the glass greenhouse showed increased sterility.
- Taxon
- hybrid wheatTriticum aestivume0
- Treatment
- glass greenhousee2
- Outcome
- sterilitye2
- Direction
- increasede2
- Qualifier
- may be due to either higher temperature, higher light intensity, or a change in light qualitye2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hybrid wheat has a large potential market of 30 million acres or more”
e2“The increased sterility of hybrids grown in the glass greenhouse may be due to either higher temperature, higher light intensity, or a change in light quality”
Claim · model-written summary
A high degree of relationship was observed between seed set and viable pollen in hybrid wheat.
- Taxon
- hybrid wheatTriticum aestivume0
- Organ / stage
- pollene3
- Outcome
- seed sete3
- Qualifier
- A high degree of relationshipe3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hybrid wheat has a large potential market of 30 million acres or more”
e3“A high degree of relationship was observed between seed set and viable pollen”