Abstract
Manganese (Mn) deficiency which decreases barley (Hordeurn vulgare L.) yields can be difficult to eliminate by fertilizer applications. We hypothesized that higher Mn content of barley seed could decrease the severity of Mn deficiency and thus decrease yield loss due to that deficiency. Galleon barley with different amounts of Mn in the seed (low Mn seed: 0.08-0.26 8g per seed; medium Mn seed: 0.34-0 -62 8g per seed; high Mn seed: 0-74-1.208g per seed) was grown in field, glasshouse and growth cabinet experiments. In two experiments, seeds were soaked in MnS04 and had Mn contents of approximately 50 8g per seed. High Mn seed, either obtained artificially by soaking seed in MnSO4 before sowing, or naturally from the parent plant, increased grain yield of barley grown in Mn-deficient conditions. In both -Mn and +Mn treatments, barley grown from high Mn seed had a greater grain yield than that from low Mn seed. High seed Mn increased root dry weight, Mn content of both roots and shoots, shoot dry weight, number of early tillers, plant survival and number of grains per plant, but had no effect on weight per seed. Maximum grain yield was achieved by sowing seed with a high Mn content and applying Mn fertilizer; neither treatment completely corrected Mn deficiency on its own.
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Claims 6
Claim · model-written summary
High seed manganese increased grain yield under manganese deficiency.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaree0 - Treatment
- High Mn seede0
- Outcome
- grain yielde0
- Direction
- increasede0
- Qualifier
- Mn-deficient conditionse0
- Comparator
- low Mn seede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“High Mn seed, either obtained artificially by soaking seed in MnSO4 before sowing, or naturally from the parent plant, increased grain yield of barley grown in Mn-deficient conditions”
e1“than that from low Mn seed”
Claim · model-written summary
High manganese seed increased root dry weight.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- High seed Mne0
- Outcome
- root dry weighte0
- Direction
- increasede0
- Comparator
- low Mn seede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“High seed Mn increased root dry weight”
e1“than that from low Mn seed”
t0“barley seeds”
Claim · model-written summary
High manganese seed increased manganese in roots and shoots.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- High seed Mne0
- Outcome
- Mn content of both roots and shootse0
- Direction
- increasede0
- Comparator
- low Mn seede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“High seed Mn increased root dry weight, Mn content of both roots and shoots”
e1“than that from low Mn seed”
t0“barley seeds”
Claim · model-written summary
High manganese seed increased shoot dry weight, early tiller number, survival and grains per plant.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- High seed Mne0
- Outcome
- shoot dry weight, number of early tillers, plant survival and number of grains per plante0
- Direction
- increasede0
- Comparator
- low Mn seede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“High seed Mn increased root dry weight, Mn content of both roots and shoots, shoot dry weight, number of early tillers, plant survival and number of grains per plant”
e1“than that from low Mn seed”
t0“barley seeds”
Claim · model-written summary
High seed manganese had no effect on weight per seed.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- High seed Mne1
- Outcome
- weight per seede0
- Direction
- no effecte0
- Comparator
- low Mn seede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“had no effect on weight per seed”
e1“High seed Mn increased root dry weight”
e2“than that from low Mn seed”
t0“barley seeds”
Claim · model-written summary
Maximum yield required high-Mn seed plus Mn fertilizer.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- sowing seed with a high Mn content and applying Mn fertilizere0
- Outcome
- grain yielde0
- Direction
- Maximume0
- Comparator
- neither treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maximum grain yield was achieved by sowing seed with a high Mn content and applying Mn fertilizer”
e1“neither treatment completely corrected Mn deficiency on its own”
t0“barley seeds”
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