Claim · model-written summary
Bunted wheat had a significantly lower dry weight of roots (22 per cent) per 100 plants than healthy specimens at maturity.
Triticum aestivumVerbatim
t0“CERTAIN WHEAT VARIETIES”
e5“In one experiment where data were obtained on the dry weight per 100 plants of the roots at maturity a significant difference was apparent between bunted and healthy specimens, the former showing a decrease of 22 per cent”
Title
KATHLEEN SAMPSON; D. WALTERS DAVIES Annals of Applied Biology 1927. doi:10.1111/j.1744-7348.1927.tb07006.x
Other claims from this paper (15)
- Intervention effect Bunt-free samples had a 25–37 per cent higher final establishment than samples contaminated with spores before sowing.
- Observation Browick showed the greatest establishment difference (37 per cent) between bunt-free and bunt-contaminated samples.
- Intervention effect At the seedling stage, plants from bunt-contaminated seed were 14–17 per cent shorter than the control.
- Intervention effect At the seedling stage, plants from bunt-contaminated seed had 16–20 per cent lower dry weight of 100 shoots than the control.
- Observation In one experiment, bunt reduced wheat height at maturity considerably.
- Observation In the same experiment, wheat plants showed no appreciable effect of bunt on growth during the first ten weeks.
- Intervention effect Bunted plants had 16 per cent more tillers than healthy plants at the period of maximum tiller development in one experiment.
- Intervention effect At maturity, bunted plants showed more heads than healthy plants, although they had fewer heads than total tillers.
- Observation In the experiments, bunt reduced the height of Hen Gymro wheat by 16–19 per cent.
- Observation In the experiments, bunt reduced the height of April Bearded wheat by 13 per cent.
- Intervention effect The reduction in height was considerably greater for tillers whose every grain was bunted than for tillers with both healthy and bunted grain.
- Observation Bunt showed a slight retarding effect on the ear length of Hen Gymro wheat.
- Observation In April Bearded wheat, bunted ears were, if anything, slightly longer than normal ears.
- Intervention effect The influence of T. laevis on wheat was distinctly weaker than that of T. tritici.
- Intervention effect Bunt-contaminated and bunt-free samples did not differ appreciably in the percentage of germination.