50 TOBACCO BREEDING. 



The principal variety of tobacco grown in Florida for cigar-wrapper purposes 

 hiis been developed from imported Sumatra seed and is commonly known as 

 Florida Sumatra tobacco. The Florida Sumatra types which have been se- 

 lected for experimental purposes are: 101. Lott ; 102. Attapulgus; 103. Oval- 

 leaf; 104, Greenleaf; 105, Shortstem ; 100, Prolific; 107, Spiralbud ; 108, 

 Corry; 109. Fain; 110. Bell: 111, Gregory. 



The variety of tobacco grown in Maryland for smoking purposes is commonly 

 known as Maryland Smoking. The types which have been selected for experi- 

 mental purposes in this variety are: 201, Sasser ; 202. Satin; 203. Thickset; 

 204, Narrowleaf ; 205. Red Clay ; 206, Hill ; 207, Holland ; 208, Drury ; 209, 

 Long Red; 210, Wilson. 



Measurements of stems. — The height of the stem of seed plants should be 

 measured from the surface of the ground near the base of the plant to the last 

 12-inch leaf at the top which would be left after topping. The height of stem- 

 topt plants should be measured to the leaf that will lie highest after topping, 

 so that in all cases the length of internodes may be determined by dividing the 

 height of the stem by the number of leaves borne by that plant. The measure- 

 ments should be made at the time of the first priming or just before cutting. 



The circumference of the stem should be measured half way between the 

 point of attachment of the middle leaf and the one next below, just before 

 harvest. 



Measurements of leaves. — The third leaf from the bottom (1). the middle 

 leaf (2), and the third leaf (3) from the top should be used for determining 

 the size of leaves. The length should be measured from the point of attach- 

 ment to the tip of the leaf. The width should be measured at about the 

 middle of the leaf at its widest point. 



The number of leaves counted for i-ecord should include all except those top 

 leaves under 12 inches in length which would be cut off in topping. 



Descriptions of lea\-es. — Definitions of the terms used in the description of 

 leases are given below : 



Shape: 



Linear. Narrow ; several times longer than broad. 



Lanceolate. Tapering; several times longer than wide. 



Ohloiiff. Nearly twice as long as broad. 



Elliptical. Oblong, with flowing lines. 



Oval. Broadly elliptical. 



Ovate. Like section of a hen's egg. 



Cordate. Heart-shaped. 



Ohovate. Larger at tip than at base. 

 Vniformity: 



Very good. All leaves alike from top to bottom of plant. 



Good. The midddle leaves alike. 



Medium. Irregularity not marked. 



Poor. Irregularity marked. 



Very poor. Very undesirable irregularity. 

 Position: ^ " 



Erect. Makes sharp angles with stem. 



Partly erect. Between erect and horizontal. 



Horizontal. At right angles with stem. 



Drooping. Tops of leaves drooping. 



Pendent. Hanging downward. 



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