Abstract
Abstract Cereal production systems are increasingly threatened by suboptimal water supply or intermittent drought spells early in the planting season. Seed coated with hydrophilic materials or hydro‐absorbers that increase the amount of water available for germination and seedling development is a promising approach to improving stand establishment under changing conditions. Barley, rye and wheat grains with combinations of hydro‐absorber, humic acid and Biplantol ® in different shares of the total seed mass were germinated in plates at 25 °C on moist filter paper. Germination rates, resource partitioning and mobilization efficiency were assessed and compared with those of uncoated seeds. Results show a strong influence of coat thickness and composition on the germination rate and the efficiency of mobilization of carbohydrates stored in the endosperm. In general, coating significantly reduced germination rate and total germination as compared to uncoated seeds in all cereals tested. Differences in coating thickness had a distinct effect on germination rate for most combinations of coatings and species. Germination rates increased with increasing coat size. This effect was most pronounced for coatings containing hydro‐absorbers and least pronounced for coatings containing humic acid or Biplantol ® . Coating generally increased the amount of carbohydrates partitioned to the roots, and thick coating increased the efficiency of grain reserve mobilization compared with the uncoated seeds. Differences between species and the implications for coating‐related changes in germination metabolism are discussed.
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Claims 5
Claim · model-written summary
Coating significantly reduced the germination rate of cereal seeds compared with uncoated seeds.
- Taxon
- Barley, rye and wheat grains
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Hordeum vulgare
Secale cereale
Triticum aestivume1 - Treatment
- coatinge0
- Outcome
- germination ratee0
- Direction
- reducede0
- Comparator
- uncoated seedse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e1“Barley, rye and wheat grains”
e0“In general, coating significantly reduced germination rate and total germination as compared to uncoated seeds in all cereals tested”
Claim · model-written summary
Coating significantly reduced total germination of cereal seeds compared with uncoated seeds.
- Taxon
- Barley, rye and wheat grainsHordeum vulgareSecale cerealeTriticum aestivume1
- Treatment
- coatinge0
- Outcome
- total germinatione0
- Direction
- reducede0
- Comparator
- uncoated seedse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Barley, rye and wheat grains”
e0“In general, coating significantly reduced germination rate and total germination as compared to uncoated seeds in all cereals tested”
Claim · model-written summary
Germination rates increased with increasing coat size.
- Taxon
- Barley, rye and wheat grainsHordeum vulgareSecale cerealeTriticum aestivume1
- Treatment
- coat sizee2
- Outcome
- Germination ratese2
- Direction
- increasede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Barley, rye and wheat grains”
e2“Germination rates increased with increasing coat size”
Claim · model-written summary
Coating increased the amount of carbohydrates partitioned to the roots compared with uncoated seeds.
- Taxon
- Barley, rye and wheat grainsHordeum vulgareSecale cerealeTriticum aestivume1
- Treatment
- coatinge3
- Outcome
- amount of carbohydrates partitioned to the rootse3
- Direction
- increasede3
- Comparator
- uncoated seedse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Barley, rye and wheat grains”
e3“Coating generally increased the amount of carbohydrates partitioned to the roots, and thick coating increased the efficiency of grain reserve mobilization compared with the uncoated seeds”
Claim · model-written summary
Thick coating increased the efficiency of grain reserve mobilization compared with uncoated seeds.
- Taxon
- Barley, rye and wheat grainsHordeum vulgareSecale cerealeTriticum aestivume1
- Treatment
- thick coatinge3
- Outcome
- efficiency of grain reserve mobilizatione3
- Direction
- increasede3
- Comparator
- uncoated seedse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Barley, rye and wheat grains”
e3“Coating generally increased the amount of carbohydrates partitioned to the roots, and thick coating increased the efficiency of grain reserve mobilization compared with the uncoated seeds”
The same questions in other papers
storage · growth · Hordeum vulgare (barley)Positive and negative results
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- positive
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See all 19 papers →storage · growth · Triticum aestivum (wheat)Positive and negative results
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- positive
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44 papers more in this group
See all 48 papers →storage · growth · Secale cereale (rye)Results agree
1 paper in the same direction as this paper
- negative
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.