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Dive into the research topics where Hirotada Yamagata is active.

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Featured researches published by Hirotada Yamagata.


Breeding Science | 1963

Studies on the utility of artificialmutations in plant breeding. : III. Injuries in rice plants irradiated with X-rays at several developmental stages.

Hirotada Yamagata; Katsumi Syakudo


Breeding Science | 1963

Studies on the utility of artificial mutations in plant breeding. : II. On the appearance of mutations in the X3 generation following r-ray irradiation of rice seeds

Hirotada Yamagata; Katsumi Syakudo


Breeding Science | 1971

Theoretical Basis for Determining the Number of X2-Plants Required for Improvement of Quantitative Characters of Self-Pollinating Crops : II. Complement to the Theory and Numerical Computations

Katsuei Yonezawa; Masahiko Ichii; Hirotada Yamagata


Breeding Science | 1963

Studies on the utility of artificial mutations in plant breeding. : IV. Aberrations in the progeny of rice plants exposed to X-rays at several developmental stages.

Hirotada Yamagata; Katsumi Syakud


Breeding Science | 1970

THEORETICAL BASIS FOR DETERMlNINING THE NUMBER OF X2- PLANTS REQUIRED FOR IMPROVEMENT OF QUANTITATIVE CHARACTERS OF SELF-POLLINATING CROPS

Katsuei Yonezawa; Masahiko Ichii; Hirotada Yamagata


Breeding Science | 1976

Studies on the Utility of Artificial Mutations in Plant Breedin : IX. Effects of Washing Temperature after EMS Soaking of Rice Seeds on Mutation Induction

Hirotada Yamagata; Mitsuhiro Fujimoto; Akira Nakagawa


Breeding Science | 1970

STUDIES ON THE CITRUS GENERIC POLYEMBRYONY IN RELATION TO BREEDING. : II. Discrimination of the embryo fertilized by 3H-labeled pollen grains.

Hiroshi Watanabe; Hirotada Yamagata; Katsumi Syakudo


Breeding Science | 1969

STUDIES ON THE UTILITY OF ARTIFICIAL MUTATIONS IN PLANT BREEDING. : VI. Estimation of Mutational Effects by the Frequency of Aberrants in M2 Generation.

Taebo Ko; Hirotada Yamagata; Katsumi Syakudo


Breeding Science | 1969

STUDIES ON THE CITRUS GENERIC POLYEMBRYONY IN REATION TO BREEDING. : 1. Labeling of the Nuclear DNA of Pollen with 3H and C.

Katsumi Syakudou; Hirotada Yamagata; Hiroshi Watanabe


Breeding Science | 1965

Studies on the utility of artificial mutations in plant breeding. : V. Mutagenic effects of several chemicals on rice.

Hirotada Yamagata; Katsumi Syakudo; Takao Furukawa

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