58 



The Florists^ Review 



August 8, 1012. 



.4>,f*0, 



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DUTCH 



aBULBSa 



\y THE BEST ^ 

 Y THAT ^ 



HOLLAND 



PRODUCES 



Qood Bulbs that 

 will produce 

 Qood Flowers 

 are the kind 

 delivered by the 



C. C. Mworth C: 



MILWAUKEE. WIS. 



DALLAS 



HOME. GROWN 



Free from disease, 1^ to 2 inches, 

 $9.00 PER 100 



A. HENDERSON & CO. 



352 N. MidiisM Ave., CNICAGO 



MCW CROP 



Bsparagus [SDumosus Ebnus 



Wlseonaln Orcenhonse Grown S«ed 



Net to be compared with the iDferior CalifomlK 



and Florida outdoor rrown seed. 

 1000 leedB. $8.50: 5000. tlfl.25; 10,000. tSO.OO 



a a HUNKEL CO., Seednei, NOwiikee, Wis. 



Mention The RcTlew when yon write. 



p n r*.'» u li^ 



hl«TllVl"^lTf 



UnrlTaled for else of flower, parity of color and 

 hlshest development. They represent the b«at 

 ■peclallsta have so far produced. Seeds and plants. 



J. L. SCHILLER, Toledo, O. 



E. E. STEWART 



of ChOl04 



GI-K DIOU I 



Vor the Wholesale Trade 

 Rives Junction :: :: Mickif^an 



COBN BBEEDINO. 



[A paper by L. S. Gould, of Waterloo, Neb., 

 read before tlie American Seed Trade Associa- 

 tion at Chlcagro, June 26, 1912, continued from 

 The Review of August 1.] 



Seed from New Hybrids. 



A few years ago Dr. Shull advanced 

 the theory of using first-generation hy- 

 brids as seed for the main crop. Dr. 

 Shull is one of our most careful, deep 

 and able investigators, and anything 

 coming from him may be considered as 

 having careful experiment and study 

 back of it. The theory is that a cross 

 gives unusual strength and vigor to its 

 progeny, thereby providing an increased 

 yield over the pure seed of either par- 

 ent. The plan was to select two varie- 

 ties and plant them in alternate rows, 

 detasseling every other row and select- 

 ing from the detasseled rows seed for 

 the next year's general crop. 



The greatest disadvantage suggested 

 was the necessity of providing a new 

 crop of hybrids each year, for the in- 

 creased yield apparently did not ex- 

 tend in any marked degree to the third 

 generation. Since Shull 's suggestion 

 was made, a bulletin prepared by Pro- 

 fessor Hartley was issued by the De- 

 partment of Agriculture. This bulletin 

 cited Shull 's experiments as substan- 

 tiating the theory. 



Uncertain Yield from Hybrids. 



Since this bulletin was published, 

 quite extensive experiments, under the 

 direction of Professor Hartley, have 

 been conducted along this line, espe- 

 cially in the southern states, the result 

 of which point out still further diffi- 

 culties. Some of the crosses produced 

 yield less than that of either parent, 

 some less than one, some more than the 

 average of both and a few more than 

 either parent. It follows that, before 

 commencing this method of breeding, 

 many crosses must be tried out with a 

 view to ascertaining what hybrids pro- 

 duce the best yield. 



While this system may not at first 

 thought appeal to practical men, it has 

 taken deep root, and I firmly believe 

 that before many years it will be one 

 of the methods chiefly employed for in- 

 creasing the production of corn. 



Breeding by Competition. 



Nothing in the way of corn breeding 

 will appeal to the average farmer that 

 does not promise good returns with a 

 minimum outlay of labor. Not that the 

 average farmer is lazy, but he does not 

 like the fuss, and this is fussy work. 

 While it is impossible to outline a sys- 

 tem of breeding that caiq, be handled 

 with four horses and tWj^ rows at a 

 time, there is a method, and a good 

 one, that is giving satisfactory results 

 in the way of increased yield with a 

 minimum of detail. This is known as 

 breeding by competition, and is based 

 on the idea of "the survival of the fit- 

 test" when grown under adverse condi- 

 tions. Such conditions are created by 

 thick planting., ^ix or seven kernels 

 are planted iiix letech hill and later 

 thinned to. ^ve stalks per hill by re- 

 moving the weaker ones. 



Aside from cultivation, no other at- 

 tention is given until fall, when it is 

 found that in each hill there is one 

 plant that has outstripped the others, 

 and bears the best ear. This ear is 

 saved for seed. After selecting a suffi- 

 cient number of the better one^ for next 



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ARTHUR T.BODDINGTON 



nS'wriiS;.... New Yirk City 



