HHTR'y hoJ^ 
Vol. XLIV. No. 1862 
NEW YORK, OCTOBER 3, 1885 
[Entered according to Act of Congress, In the year 1885, by the Rural New-Yorher In the office of the Librarian of Congress at Washington.] 
In the Sharpless fertilized with Sharpless the 
flowers were castrated the same as when fer¬ 
tilized with other pollens. 
At first, difficulty was experienced in secur¬ 
ing pollen for the fertilization, but after a 
STRAWBERRIES.—THE INFLUENCE OF 
DIFFERENT POLLENS. 
E. S. GOFF. 
^ ith the hope of gaining 
evidence upon the im 
porta ut, but nnsettled 
question as to the influ- 
r ji * ence of different pollens 
l|ji jjj* I upon the character of 
If. [t | the strawberry, a few 
P | experiments have been 
triec * here, the results of 
r-t »rv7rv9 which will appear from 
■s cvi- ) the accompanying illus- 
. 7 ) tions. 
^ ) ’t'be cross-fertilization 
7 <V 0 wa8 a b done artificially 
S ufion potted plants. In 
order to avoid, beyond 
question,the interference of insects in the fer¬ 
tilization, the plants were removed to the 
green-house when the first flowers were about 
few trials, it was found that by picking the 
blooms shortly after the petals opened, and 
spreading them in a still room for 34 hours, 
the pollen was given off in abundance. It is 
probable that the partial drying of the pollen 
sacs causes them to open promptly, and thus 
to yield their pollen nearly all at once. The 
cross fertilization we performed by bringing 
to open, and inclosed in a frame covered with 
mosquito netting. To avoid currents of air 
the pots were set aside from the ventilating 
doors. The frame covering the plants was 
kept fnstened to its place, and was never rais¬ 
ed except to perform the work of cross-fertili 
the stamen in direct contact with the pistil. 
The pollen of the wild strawberry (Fragaria 
vesca) was used for fertilizing several blossoms 
of both varieties; but, to my surprise, not one 
zation. The varieties experimented with were 
the Crescent and Sharpless. The Crescent 
blossoms produced no fertile stamens. The 
stamens from the Sbarplesss blossoms were re 
moved either before the petals opened or imme 
diately afterward. It was found difficult to re- 
of these flowers produced a fruit, although 
the pollen was applied to each at least twice, 
and with the same thoroughness as in case of 
Fig. 417. Fig. 418. 
movethe stamens before the petals opened with¬ 
out mutilating the receptacle more or less, 
and hence iu the majority of cases I removed 
them immediately afterward. In all cases 
where there was the least doubt as to whether 
or not the stamens were capable of giving off 
pollen,the flower was discarded and removed. 
the cultivated varieties. After the plants 
had ceased blooming, they were taken from 
the greenhjuse to a well prepared bed in the 
THE INFLUENCE OF POLLEN ON THE STRAWBERRY, 
