Experiment Station Record, Volume 43, July-December, 1920 Page: 32
xxiv, 1005 p. ; ill. ; 24 cm.View a full description of this book.
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32 EXPERIMENT STATION RECORD. [Vol. 43
tions and experimental results of Miss Saunders (E. S. R., 35, pp. 730, 731)
to the effect that the high percentages of doubles among stocks is or may be
due to unconscious selection by the garden workers of the more vigorous plants
They report having verified the figures presented by her, and suggest that the
selection is best made at the time of transplanting rather than later when the
plants have attained a larger size, as the proportion of doubles among the selections
then made is much greater than among the selections made when the plants
are potted. It is claimed that even in the poor strains the tendency of seedlings
which early show vigor is in the same direction.
A new auxanometer, F. M. HAINES (Ann. Bot. [London], 33 (1919), No. 130,
pp. 181-188, figs. 2).-This is an account of an attempt by the author to secure,
under laboratory conditions, records on a larger scale than heretofore made
of the growth of plants while allowing the extension of observation thereon
to cover at least three or four days. Though the work of testing as yet carried
out is regarded as preliminary, it is claimed that satisfactory results have been
a)btained.
FIELD CROPS.
Report of agronomy department, M. A. BEESON (Oklahoma Sta. Rpt. 1919,
pp. 18-26).-A study of the effect of lime and organic matter on impervious
Kirkland upland soil showed that in this type of soil greater root development
of kafir plants had taken place than where such plants had been grown
on the Vernon and the Yahola soil types. It was found also that during a
period of 3 years there had been a movement of organic matter into the second
foot of soil on plats where barnyard manure and lime had been applied.
In a test with continuous wheat culture, with and without manure, in
progress for 20 years, an average of 4.6 tons of manure per acre applied annually
to the manured plats yielded an average of 22.91 bu. of wheat per acre as compared
with 13.39 bu. secured on the unmanured plats.
The following varieties, given with their yields, ranked first in variety tests
with different crops: Oats, Nicholson Improved 50.1 bu., Fulghur 42.3 bu.;
wheat, Fulcaster 20.4 bu., Kanred 20 bu.; rye, Giant 24.7 bu., Abruzzi 18.2 bu.;
barley, White Club 40.1 bu., Kingfisher 34 bu.; grain sorghum, Darso 12.75 bu.,
and Shrock kafir 10 bu. per acre. The highest yield in green forage, 2.75
tons per acre, was secured from Blackhull White kafir of the grain sorghums,
while Dwarf Ashburn cane led with 5.5 tons among the sweet sorghums.
The following leading varieties of crops are reported, without yield: Whippoorwill
Blackeye cowpea, Tennessee Red peanut, and Ohio soy bean.
In a crop rotation and fertility test, in which cotton, oats, cowpeas, and
grain sorghum were grown, oats gave the greatest yield on the plats treated with
manure and raw rock phosphate, and darso on the plats treated with phosphate,
and on which the vines from the preceding cowpea crop had been turned under.
An alfalfa fertility test was conducted to determine the value of barnyard
manure and lime on upland alfalfa. In 1918 the check plat yielded 2,021 lbs.,
the lime plat 3,210 lbs., the manure plat 6,817 lbs., and the manure and lime
plat 7,662 lbs. of hay per acre. A comparison of lime and gypsum for upland
alfalfa showed in 1918 that lime was superior to gypsum as a stimulative agent.
Results in plant breeding work showed that a cotton selection designated as
Row 44 outyielded all other varieties at the station. This strain had a staple
of from 1 to 1 T-U in. and from 36 to 37 per cent of lint.
The standard Blackhull White kafir, selected for dwarfness, uniformity, and
high yielding qualities, proved superior to any kafir grown at the station. A
culture test with kafir emphasized the importance of keeping down all weeds
from the growing crop. A plat, not plowed but with the grass kept down with
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United States. Office of Experiment Stations. Experiment Station Record, Volume 43, July-December, 1920, book, 1921; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc5011/m1/56/: accessed April 25, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.