64 



TOBACCO BREEDING. 



The pedigree record of the original plants and their progeny shows 

 an average production of 21 leaves to the plant, having an average 

 length of 20^ inches and a width of lU inches. The average number 

 of suckers is three and the size small. The average height of plants 

 is 6 feet, and the average period from the date of setting out the plants 

 in the field to the time of harvest is ninety days. The length of inter- 

 node is 3| inches and the circumference of stem 3i inches. The plants 

 have been particularly free from the attacks of fungous diseases, and 

 the leaves have the necessary stretch, or elasticity, and strength to 



cover the cigar well without in- 

 jury. The yield of wrappers in 

 the manufacturing process has 

 been exceeding'ly large and of the 

 best quality 



^fe^.; 



NEW VARIETIES PRODUCED BY 

 HYBRIDIZATION AND SEED 

 SELECTION. 



THE COOLEY HYBRID. 



The histor^^ of the origin of the 

 Cooley Hybrid is as follows: Se- 

 lect plants of the Havana Seed 

 variety grown by Mr. D. P. Cooley. 

 Granby, Conn., were used as 

 mother parents. Several flowers 

 on these plants were emascu- 

 lated at the proper time and polli- 

 nated with pollen produced by 



Fig. 11.— Typical plant of the Cooley Hybrid 

 tobacco. Connecticut Havana Seed, female 

 parent; Sumatra, male parent. The hybrid 

 retains the habit of growth and adaptability to 

 Connecticut Valley conditions of the mother 

 parent, combined with the improved shape, 

 size, venation, and other characters of the 

 male parent. 



plants grown from Connecticut 

 Sumatra seed in the season of 

 1003. From the plants grown 

 from this seed, selections of the 

 most desirable were made in 1904. 

 From this crop typical seed plants 

 were again selected, and the plants raised from this seed in 1905 

 showed as great uniformity as ordinary crops of the mother Havana 

 Seed variety, so that the hybrid can be said to be fixt, and seed in 

 small samples has been distributed to interested growers. An illus- 

 tration of the Cooley Hybrid plant is shown in figure 11, while a leaf 

 of this variety is shown in figure 12. Illustrations of the Cooley 

 Hybrid tobacco grown under shade are shown in Plate X. 



96 



