Yamaseshirazu

This document alone does not say mother or father

The other historical documents write "taking A as the mother and B as the father in an artificial cross". Yamaseshirazu's does not.

Cross combination　"Paddy Rice Fujisaka No.2" × "Paddy Rice Norin No.1" Year and place of cross　1946, Tohoku Branch, MAF Agricultural Experiment Station (now Cultivation Section One, Tohoku Agricultural Experiment Station) Breeding site　(from F3) MAF Furukawa Agricultural Improvement Laboratory, then Furukawa Branch, Miyagi Prefectural Agricultural Experiment Station Year of line naming　February 1954, Tohoku No.63 Current generation　F12 (fiscal 1958)

It is a list of fields, with the parents joined by "×" and nothing more. The words for seed parent and pollen parent are absent.

By convention what precedes the "×" is the mother. But this site does not assert what is not written in words. Which of Fujisaka No.2 and Norin No.1 was the mother is recorded here as not stated.

For the same combination of parents, Tohoku No.58 Natsuminori's document writes "taking Higashiyama No.38 as the mother and Paddy Rice Norin No.1 as the father" in words. Same station, lines five years apart, and the way of writing changed.

An unreadable character survives in it

Awn and ？ apiculus colour　Awnless, and the ？ apiculus is red.

"？ apiculus" — the colour of the tip of the husk.

That missing character is not unique to this document. The same part of the grain is written four different ways across the database:

The "？" is not one accident but a habit of the digitisation. The paper original probably used a character such as 稃 that the transcription could not render; since there is no telling which, it is quoted as it stands.

Flaws a source carries about itself come in kinds. Hatsunishiki's document writes "Ou No.244" once where the number is 224, and Tedoriwase's writes "Etsunan No.5" where it is No.6 — those were wrong on the paper report itself. This "？先" was lost on the way from paper to screen. One is an error in the source, the other damage to it. Both are left uncorrected and noted, but the cause lies in different places.

"Yamase" is a cold wind

The culm is short, somewhat shorter than Norin No.1's or Fujisaka No.5's. Panicle number is somewhat high. A skewed panicle-number type, not as many as Norin No.1 but more than Fujisaka No.5 or Rikuu No.132. Grain set is dense and shattering hard; the grain is somewhat large, larger than Fujisaka No.5's or Rikuu No.132's.

(Punctuation is missing in the last line of the original.)

"Yamase" is the name for the cold north-easterly wind of the Tohoku region (the document does not say so). The father, Fujisaka No.2, is from Aomori's Fujisaka lines, long used in breeding for cold tolerance.

But this document records nothing about cold tolerance. What a name seems to tell you and what the document says are two different things.