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“embryo survival”

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plus 1 earlier · 1940s

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Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Irradiated barley endosperm had no clear effect on unirradiated embryo seedling growth or field survival with technique A.

Taxon: barleyHordeum vulgaree1
Treatment: irradiated endosperme0
Outcome: seedling growth nor on plant survival in the fielde0
Direction: No clear effecte0

Not reportedComparator

Verbatim

e0
“No clear effect of the irradiated endosperm on the unirradiated embryo was observed, neither on seedling growth nor on plant survival in the field”
✓ located verbatim in the source · abstract, characters 654–800

e1
“In a first series of experiments with barley”
✓ located verbatim in the source · abstract, characters 419–463

Title

THE EMBRYONIC TRANSPLANT AS RESEARCH MEDIUM IN THE EMBRY/-ENDO SPERM IN IRRADIATED SEEDS

Paolo Meletti; Francesco D’Amato OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) 1961

Other claims from this paper (6)

Intervention effect Barley embryos irradiated and grafted onto unirradiated endosperm produced 33 mature plants among 2400 embryos, whereas intact irradiated controls did not survive.
Observation A genetic test detected no seedling mutation in either transplant direction.
Intervention effect X-irradiated barley endosperm tended to reduce both shoot and root growth with technique B.
Intervention effect Thermal-neutron-irradiated barley endosperm depressed root growth only.
Intervention effect Heavily gamma-irradiated endosperm depressed root and shoot growth in Albimonte wheat.
Intervention effect Wheat embryo transplants onto endosperm given 1000 Kr gamma rays had strongly reduced field survival.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Wheat embryo transplants onto endosperm given 1000 Kr gamma rays had strongly reduced field survival.

Taxon: wheatTriticum aestivume1
Material: Albimontee1
Treatment: endosperms irradiated with 1000 Kr of gamma rayse0
Outcome: field survivale0
Direction: reductione0

Not reportedComparator

Verbatim

e0
“A Strong reduction in field survival has also occurred for unirradiated embryos transplanted on endosperms irradiated with 1000 Kr of gamma rays”
✓ located verbatim in the source · abstract, characters 1804–1948

e1
“in Albimonte wheat, it was also shown that heavily gamma- irradiated endosperm depresses growth in both the root and shoot systems of the embryo transplanted on it”
✓ located verbatim in the source · abstract, characters 1596–1759

Title

THE EMBRYONIC TRANSPLANT AS RESEARCH MEDIUM IN THE EMBRY/-ENDO SPERM IN IRRADIATED SEEDS

Paolo Meletti; Francesco D’Amato OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) 1961

Other claims from this paper (6)

Intervention effect Irradiated barley endosperm had no clear effect on unirradiated embryo seedling growth or field survival with technique A.
Intervention effect Barley embryos irradiated and grafted onto unirradiated endosperm produced 33 mature plants among 2400 embryos, whereas intact irradiated controls did not survive.
Observation A genetic test detected no seedling mutation in either transplant direction.
Intervention effect X-irradiated barley endosperm tended to reduce both shoot and root growth with technique B.
Intervention effect Thermal-neutron-irradiated barley endosperm depressed root growth only.
Intervention effect Heavily gamma-irradiated endosperm depressed root and shoot growth in Albimonte wheat.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Seed rot began at the embryo and extended to endosperm.

Taxon: RiceOryza sativat0
Organ / stage: embryoe0
Outcome: rot of seedse0
Qualifier: endosperme0

Verbatim

e0
“The rot of seeds in soil began at a part of the embryo and extended to the endosperm.”
✓ located verbatim in the source · abstract, characters 666–751

t0
“Rice”
✓ located verbatim in the source · title, characters 28–32

Title

Studies on the Emergence of Rice Seedlings Seeded in Autumn and Winter : I. Relation of seeding time to survival of seeds in soil and rate of sprouting seeds

Masami HIMEDA; Sadakichi FUJII Japanese Journal of Crop Science 1969. doi:10.1626/jcs.38.105

Other claims from this paper (8)

Association Earlier seeding decreased seed sprouting rate.
Observation Sprouting rate declined from cropless fields to barley rows to wheat rows.
Observation Sprouting was slightly delayed for November and April seedings relative to December through March.
Intervention effect November seeding had more dead seeds after three months than January seeding.
Observation One month after November seeding, seed water content reached 32%.
Observation One month after December seeding, seed water content reached 3.0%.
Observation One month after January seeding, seed water content reached 29%.
Mechanism The authors infer that seeds may rot in low-temperature January after germination advances during warmer November.

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“embryo survival”

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