FIELD 0BOP9. 1147 



tant factor in the development of color, and various media were found to influence 

 tlic color produced by the fungus in a marked degree. 



The induction of new species, I ». T. MacD \\. {Abu, in Science, n. %er., .'••' 



(1906), No. 585, p. ',.'.'). The effect of a e chemical agents on the development of 



new species is briefly described iii an account of experiments in which the ovaries of 

 Raimanmia were stimulated immediately previous to fertilization. 



Among the seeds secured were a number which produced plants differing from the 

 normal or typical species, an.l the Beries of experiments seems to demonstrate thai 

 factors externa] to the protoplast may exert a profound influence upon the heredi- 

 tary characters, developing qualities not hitherto exhibited in the parent plant-. 



FIELD CROPS. 



Report of the agriculturist, B. C. I'.ifitm (Colorado Sta. Rpt. 1901, pp. :<>-.; i, 

 />/. t).—A brief report of the work of the agriculturist during the season of L901 is 

 given. Several varieties of wheat grown for a number of years at altitudes of 7,000 

 it. showed a remarkable deterioration when planted at the Btation. In a Held 

 experiment with potatoes, untreated selected clean seed gave the largest yield. The 

 shrinkage of 8 lots of potatoes during 4j months ranged from 5.2 to 8.5 per cent 

 Notes are given on a number of varieties of macaroni w heats tested in L901. 



The results obtained with Hanna barley indicated that the variety is well adapted 

 to Colorado conditions. Black oats from Colorado seed gave 71 bu. per acre, North 

 Finnish 60.5 bu., and Silesian 52.4 bu. Three acres of Russian spelt, sown at the 

 rate of 100 lbs. per acre, yielded 181 bu., machine measure. The crop weighed 5,386 

 lbs., or about 30 lbs. per bushel. 



A report of the cooperative grass and forage plants experiments with the 

 TJ. S. Department of Agriculture at the Colorado Agricultural Experiment 

 Station in 1901, A. II. Danielson (Colorado Sta. Rpt. 1901, pp. SS-38, pis. \, 

 dgm. 1) . — The grass garden of the station is described and the species making a good 

 growth, a moderate growth, little growth, or dying out after coming up, and those 

 not germinating are listed and the more important and successful ones briefly noted. 

 The grasses and forage plants under field culture are also briefly discussed. 



Succotash as a soiling crop, R. S. Shaw (Michigan Sta. Bui. .'■'<■'<. pp. ltS-127, 

 figs. 4). — The advantages and disadvantages of several crop mixtures grown for 

 forage from L903 to L904, inclusive, are pointed out and notes on their culture and 

 uses are given. 



()n Mays, 1903, a mixture of 1 pk. of corn, 1 pk. of peas, 1 pk. of oats, and 6 qts. of 

 barley was drilled at the rate of -•] )>n. per acre. The cutting and feeding of this crop 

 to pigs was begun June 24 and lasted L2 days. The yield was at the rate of 22,887 

 Lbs. of green crop per acre. Owing to abundant rainfall, the growth was exceedingly 

 dense and tall. The objection to this mixture was that it did not contain plants 

 making a second growth after cutting. 



In 1904 corn, peas, oats, rape, and millet were sown May 7 on two different plats. 

 Pigs were turned in one plat on June -<> and kept there for '■'>- days. The second 

 gro* th of rape and millet in this mixture was good. 



In 190.") corn, oats, peas, rape, and clover were sown May l on one plat and May 20 

 on another. Floods interfered with the crop, but the data secured from the early 

 Bowing showed a yield of green forage of 12. Ifi tons per acre. Samples taken from 4 

 representative areas each 2 ft. square showed that these 16 sq. ft. had produced the 

 following number of plants: Oats, 61; peas, 68; rape. 55, and corn 22, their weights 

 being 10.6, 4.2, 2.7.~), and 0.5 lbs., respectively. The second sowing yielded at tin- 

 rate of 12.62 tons of green forage per acre and the 4 representative areas, including 16 

 sq. ft., in this case contained the following number of plants: Corn, 74; peas, 82; 

 oats, 43, and rape 10, the respective weights being 6.9, 1.7, 4.3, and 0.3 lbs. The 

 cutting of this sowing began July 22 and was completed August 11. The composition 

 of samples taken in 1904 and 1905 is recorded. 



