FIELD CROPS. I4f) 



and insect enemies in the island. Notes on diseases and insects affecting oranges, 

 coffee, sugarcane, tobacco, cotton, cocoanut, cacao, papaw, beans, and cowpeas are 

 given. 



Crop experiments in 1903, A. M. Ten Eyck and V. M. Shoesmith (Kansas Sta. 

 Bui. 123, p]). 181-249, pis. 10). — These experiments were conducted on 360 plats, 

 ranging from 0.1 acre to 5 acres in size and aggregating about 240 acres. Among the 

 spring wheats the macaroni varieties gave the largest yield and heaviest grain. Six- 

 rowed bearded barley gave the best results, the leading varieties — Common, Bonanza, 

 and Mandscheuri — yielding 33.9, 33, and 32 bu. per acre, respectively. Hot weather 

 was not so injurious to barley as it was to oats. Sixty Day oats stood first with a 

 yield of 53.9 bu. per acre, followed by Black Beauty with 52.1 bu., Kherson with 46.7 

 bu., and Red Texas with 43 bu. per acre. The early varieties gave much the besl 

 results. Early sowing is recommended in order .that the crop may escape blight 

 caused by hot weather. Emmer produced 1,756 lbs. of grain, which was more than 

 the highest yields of oats or barley obtained in this test. This crop seemed more 

 resistant to drought, diseases, and unfavorable weather conditions than either oats or 

 barley. Flax planted rather late yielded only 6.5 bu. per acre. 



Among the millets German ranked first in the yield of hay and seed, the largest 

 yields being 3.6 tons of hay and 25.2 bu. of seed per acre. Siberian millet ranked 

 second. The following varieties of soy beans are mentioned as yielding more than 13 

 bu. per acre: Yellow, Small Yellow, Ito San, Early Yellow, Green Samarow, and Early 

 Brown, of which the Ito San and the Yellow varieties are the most productive. The 

 Ito San and Early Yellow rank high in earliness. Of 34 varieties of cowpeas grown, 

 New Era gave the largest yield, 11.07 bu. per acre, and several varieties gave an aver- 

 age yield of 2.5 tons of dry fodder per acre. Coleman, Early Amber, Kansas Orange, 

 and Kavanaugh varieties of saccharine sorghums gave good results. Coleman ranked 

 first in production, with a yield of 40.5 bu. of seed and 7.41 tons of stover per acre, 

 while Amber and Kavanaugh ranked first and last, respectively, in maturity. It 

 was found that 50 days after harvesting, sorghum stover in the stack still contained 

 on the average 51.7 per cent of moisture. The results with nonsaccharine sorghums 

 showed that Yellow Milo maize and Large African millet yielded 5.27 tons of stover 

 and 20.6 bu. of grain, and 5.33 tons of stover and 37.3 bu. of grain per acre, respec- 

 tively, while Red Kafir corn and Black-Hulled White Kafir corn from seed from the 

 same source yielded 4.42 tons of stover and 57.3 bu. of grain, and 4.07 tons of stover 

 and 59.1 bu. of grain per acre, respectively. The Kafir corn stover contained fully 

 as much moisture when stacked as the stover of the saccharine sorghums. Extra 

 Early Japanese broom corn, with Genuine Dwarf as ranking second, appeared supe- 

 rior to other varieties for broom manufacture and also produced the largest yield of 

 seed, 29.9 bu. per acre. A total yield of 5.25 tons of fodder per acre was obtained 

 from pearl millet, but this crop is considered much inferior to the sorghums. Teo- 

 sinte did not prove equal in value to corn, Kafir corn, or sorghum for forage. 



Eighty-one varieties of corn were under test. The yields of standard varieties 

 under the same conditions varied from 31 to 89 bu. per acre. The yields per acre of 

 the leading varieties were as follows: Hildreth, 89.02 bu. ; Brazilian Flour, 82.01 bu. ; 

 Hammett, 79.04 bu.; Mammoth, 77.12 bu.; Griffing Calico, 76.64 bu.; Klondyke, 

 75.70 bu.; Cocke Prolific, 75.70 bu., and Bicker Choice, 74.53 bu. Cocke Prolific 

 and Brazilian Flour were grown from southern-grown seed. The native varieties 

 were generally more productive than the imported sorts. The early maturing 

 varieties from northern-grown seed produced the smallest yields, while the best 

 yields of grain and stover were obtained from the medium to late maturing varieties. 

 In addition to determining the yielding capacity, the varieties were scored with 

 reference to the number of ears produced per plat, height of stalks, height of ears 

 on the stalks, leanness, and length and circumference of the ears. The following 

 varieties scored highest in these points: Forsythe Favorite, 88.4 per cent; Griffing 



