Abstract
An assessment of hybrid winter wheat was carried out over three seasons to determine the commercial potential of hybrid varieties under Irish conditions.The studies examined the effects of reduced seeding rate on hybrid grain yield and quality in comparison to pure-line varieties.A comparison of the hybrid varieties available was also carried out and the higher yielding hybrids were then compared with the best pure-line varieties in terms of grain yield and quality, and response to fungicide.The results indicated that in good sowing conditions hybrids can give greater yields than pure-line varieties at reduced seeding rates, but the effect is not large or consistent.There was generally no effect of seeding rate on the grain quality of hybrid varieties but crop lodging occurred in one season at high seeding rates.Of the hybrid varieties examined, Mercury and Hyno Esta were the two better varieties in terms of grain yield; there was little difference between the hybrids examined in terms of grain quality.The best hybrid varieties did not give consistently higher yields or quality than the best pure-line varieties and exhibited a similar response to fungicide application as the pure-line varieties.It is concluded that when the price differential between seed of pure-line varieties and hybrid varieties is taken into account, the winter wheat hybrid varieties currently available do not offer any economic advantages to commercial growers at the present time.
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Claims 8
Claim · model-written summary
Hybrids sometimes yielded more than pure-line varieties at reduced seeding rates in good sowing conditions, but inconsistently.
Verbatim
e0“in good sowing conditions hybrids can give greater yields than pure-line varieties at reduced seeding rates, but the effect is not large or consistent.”
Claim · model-written summary
Seeding rate generally had no effect on hybrid grain quality.
Not reportedComparator
Verbatim
e0“There was generally no effect of seeding rate on the grain quality of hybrid varieties”
Claim · model-written summary
High seeding rates caused lodging in one season.
Not reportedComparatorDirection
Verbatim
e0“crop lodging occurred in one season at high seeding rates.”
Claim · model-written summary
Mercury and Hyno Esta were the better hybrid varieties for grain yield.
- Taxon
- hybrid winter wheat
Triticum aestivumt0 - Material
- Mercury and Hyno Estae0
- Outcome
- grain yielde0
- Direction
- bettere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mercury and Hyno Esta were the two better varieties in terms of grain yield”
t0“hybrid winter wheat”
Claim · model-written summary
Hybrid varieties differed little in grain quality.
Verbatim
e0“there was little difference between the hybrids examined in terms of grain quality.”
Claim · model-written summary
The best hybrids did not consistently outperform the best pure-line varieties for yield or quality.
Verbatim
e0“The best hybrid varieties did not give consistently higher yields or quality than the best pure-line varieties”
Claim · model-written summary
The best hybrids and pure-line varieties responded similarly to fungicide.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- fungicide applicatione0
- Outcome
- response to fungicide applicatione0
- Direction
- similare0
- Comparator
- pure-line varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exhibited a similar response to fungicide application as the pure-line varieties.”
t0“Hybrid Winter Wheat”
Claim · model-written summary
Considering seed-price differences, currently available winter wheat hybrids offer growers no economic advantage.
Verbatim
e0“the winter wheat hybrid varieties currently available do not offer any economic advantages to commercial growers at the present time.”
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