(14

Common Pea (var. Champion of England) was crossed with purple-podded pea. Pisum sativum. — pod when nearly ripe injured by Birds, & hole made, so that the 4 peas, corroded & injured by wet & not nearly full sized— I doubted whether they would grow. — Planted Sept. 3d. 5° P. m. on sand together with 10 purple self-fert. of Purple-podded & 41 of the of parent-form var.; latter under net to exclude insects. —

Sept. 5th 7° A. m. one of the crossed peas had exserted during night radicle plumule radicle .35 long: by 12° midday, two others had exserted radicle, & now one of non-crossed purple-podded, had exserted small radicle; & at 9° P.m. another a second purple-podded just germinated. — was partly germinated in pod & one of common var. had partially exserted radicle

Peas planted in pot with match germinated at 7° 30 (as radicle longer say previous midnight.) — The 3 with pins germinated at same time. viz 12° all on same day 5th. —

Oct 6th 7° 30' A.m. The fourth crossed pea has now germ; & now one of the 4 Champion Peas has, just germ. & one more a thread of purple-podded out of 10 has germ. (Of Champion peas, if those that had split in pod are counted 3 altogether have germinated out of 8 planted) /over

[14v]

Peas

(Sept 6 7°. 30' The 3d 2d & 3rd & 4th 2d & 3d Purple-p-peas planted, & marked with slips of zinc. — Three (3 Three Champions planted, one of which germinated this morning, & 2 of those, all in about same stage, & which had germ. or split in pod.)

Sept. 6th 2° P.m. a second Champion ha (of the lot of non split peas) has germ. & a fourth purple-podded pea

(Sept 7th 7°. 20' A.m a third Champion (of non-split lot)

(Sept 8th 7° 30 a fourth Champion germ (do)) 10° P.m. a 5th Purple

(Sept 9th. 8° A.m a sixth purple: 8° P.m. a seventh purple germ.)

(Sept 10' 7' A.m an eighth purple. The ninth (Sept 18th) has now germinated. The 10th thrown away before.

Three Peas germinated very quickly viz in 36° so that a little difference in time is great for them. Now the 4 crossed peas germinated on average 13° before the 4 first of purple-podded out of 10 peas of those, & the having a choice is important for other purple-podded did not germinate for some time afterwards. The crossed peas germinated at a much still longer average interval before the self-fert. mother Champion peas.

(14A

Common Peas

Sept 11th 4° P.m One of the crossed peas., which germinated after the first on Sept 5th at midday (after the first most about 12° on the 5th) is now the tallest plant of the 3 lots, being 1°. 7 inch high.

The next tallest is self-fert purple podded — which germinated on Sept. 6th at 7°. 30' ∴ 19° 30' later— & is now 1.05 high.

Sept 12th. 3°. 30' The tallest crossed (A), as measured yesterday exceeds by 1/4 of inch the tallest purple (D) which is to day tallest, after a gain of 23° 30' growth which is too much—; probably really exceed it by 1/3 of inch. The crossed lot is The 3 pure Champions are only .7 of inch high today. — There has been great difference in growth owing to my having planted then at first with radicle upwards. —

Sept 16th A. exceeded what B was yesterday, 20 h. ago, by .8 of inch

Sept 28th the tallest crossed is now only 14 inches high: tallest pure purple 14 1/2: tallest pure Champion 10 1/4: The l now sown—increased height may be due to its being crossed between the two which grew at different rates whilst young; or to the peas of crossed having been injured by the hole in pod & not growing nearly the full size. —

(14B

Common Pea.

In summer of 1867, 6 fl on Early Eurpern Pea was crossed, & produced only 2, 2, & 1 peas; no doubt this due to own pollen being brushed off— & only single application of pollen from distinct closely adjoining plant of same var. For 14 pods spont. self fertilised under net gave average of 3.5 peas with max. of 6 — The crossed peas were fine but not finer than best of selfs—

Equal number of both crossed & self-fert peas were sown on opposite sides of 2 Pots — (Now they May 24 68. they are 8-9 inches high & about equal on both sides.)

Pot I. self flowered first. 2 plants

Crossed 2 ft. 11 in high

self 2. 5 3/4.

The other pair injured All plants looked poor & unhealthy

Pot II. Crossed flowered first. — 3 plants

Crossed, 2 .. 7 1/2 — 2 ft — 11 in — 3 ft — 1

Self 4. 3 — 3-9 — 2-9

So self much the advantage— I presume did not get pollen enough.