72 



intended to \>e planted with seed selected from Calumet Plat A of 1890, the single 

 head plat of that year and variety, hut the seed reserved for the purpose were found 

 to be musty when the time came for planting, and Serial No. 301, from another plat, 

 was substituted, this plat, No. 16 of 1890, having been derived from the mixed seed 

 of two heads of lower quality. 



Plat No. 22 (Sterling, Kansas, "Lot No 161," 1890}. Derived from the second choice 

 of two single heads grown at Sterling in 1890, and received from Mr. A. A. Deiitou. 

 Juice analysis of this cane labeled, "Lot No. 161, Serial No. 8189, 1890 :" Sucrose, 

 14.60; purity, 81.60. Best single stalk of derivate plat, Serial No. 642, 1891, cut 011 

 the one hundred and thirteenth day: Sucrose, 16.05; purity, 81.66; glucose, .71; non- 

 sugars, 3.09. Panicles fully out by the sixty-eighth day ; seed hard by the ninety -third 

 day. Few seed were produced by the canes of this plat, but the sterility was not so 

 nearly absolute as in case of Plat No. 21 of the first series, same variety. 



Plat No. 24 (Sterling, Kans., Plat No. 14 of 1888} No analytical work was done 

 upon canes of this plat, as it was decided to drop the variety. 



Plat No. 2G (Special from a plat of Red Liberian). Derived from a single large cane 

 selected from Calumet Plat No. 5 A, 1890, differing in some respects from the Red 

 Liberian type. Juice analysis of this cane, Serial No. 232, 1890, cut on the one hun- 

 dred and thirty-fourth day (when still immature): Sucrose, 9.30; purity, 45.70; glu- 

 cose, 6.44; nonsugars, 4.61. Best single stock of derivate plat, Serial No. 739, 1891, 

 cut on the one hundred and twenty-first day: Sucrose, 14.35; purity, 76.78; glucose, 

 1.71; nonsugars, 2.63. Panicles fully out by the sixty-eighth day; seed hard by the 

 ninety-third day. Canes of good form and fair size, apparently crossed, the type of 

 panicles varying in only slight degrees from stock Red Liberian, than which this 

 seems to be somewhat earlier in maturing. Comparison of analyses from parent and 

 derivate plots shows enough improvement to warrant another season's culture. 



Plat No. 28 (Colman Cane}. Derived from the best of two single canes grown at 

 Sterling, Kans., in 1890, and received from Mr. A. A. Denton. Juice analysis of 

 parent cane, labeled "Serial No. 8277, 1890:" Sucrose, 16.23; purity, 83.50.' Best 

 single stock of derivate plat, Serial No. 652, 1891, cut on the one hundred and thir- 

 teenth day: Sucrose, 16.00; purity, 79.01; glucose, 1.20; nonsugars, 3.05. Panicles 

 fully out by the sixty-eighth day; seed hard by the ninety-third day. Canes of fair 

 average size, but showed many variations, some nearly like Planter's Friend. 

 Apparently crossed, and no seed from this plat will be planted in 1892. 



COMPARISON OF VARIETIES FIRST AND SECOND PLANTING. 



Excepting in Plats A, B, and D, no analyses of average samples were 

 made, hence in all comparisons between single-Lead plats the results 

 of single-stalk examinations are relied upon for the necessary data. 



On looking over the analyses of the two plantings the most striking 

 circumstance is the higher sucrose and purity shown by canes of the 

 earlier series, despite the unfavorable nature of the season attending 

 their germination and growth. Both plantings were made upon prac- 

 tically the same soil, and were given nearly the same treatment, with 

 the advantage in point of attention and cultivation in favor of the sec- 

 ond series. In most instances difference of seed will not offer adequate 

 explanation. It suggests the opinion that any agent operating to re- 

 tard growth and delay maturity may, within certain undetermined 

 limits, tend toward an increase in the sugar-storing function of the 

 plant. Why this should be, and whether as a matter of fact it is so, 

 can not be conclusively stated, but indications point to that probability. 



