I succeeded in isolating these red flowering
branches in paper bags and in pollinating them with their own pollen,
and subjected the striped spikes of the same individuals to a similar
treatment. Three individuals gave a sufficient harvest from both types,
and these six lots of seeds were sown separately. The striped flowers
repeated their character in 98% of their offspring, the red twigs in
only 71%, the [320] remaining individuals sporting into the opposite
group.
In the following year I continued the experiment with the seeds of the
offspring of the red bud-variations. The striped individuals gave 95%,
but in the red ones only 84% of the progeny remained true to the parent
type.
From these figures it is manifest that the red and striped types differ
from one another not only in their visible attributes, but also in the
degree of their heredity. The striped individuals repeat their
peculiarity in 90-98% of their progeny, 2-10% sporting into the uniform
red color. On the other hand the red individuals are constant in 71-84%
of their offspring, while 16-29% go over to the striped type. Or,
briefly, both types are inherited to a high degree, but the striped type
is more strictly inherited than the red one.
Moreover the figures show that the degree of inheritance is not
contingent upon the question as to how the sport may have arisen.
Pages:
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318