EXERCISE XXVII. 

 OATS— DESCRIPTIVE TERMS. 



Supplies for a Laboratory Section of Twelve. Twelve panicles of oats, such as Kherson and Texas Red, 

 adapted to adverse conditions. Twelve panicles of oats such as Garton 70 and Improved White Russian, adapted 

 to favorable conditions; twelve panicles of wild oats. 



INTRODUCTION. Oat types differ more or less from one another in the- size, open- 

 ness, and shape of panicle. In order to properly describe these common points of difference 

 it is necessary to use carefully chosen descriptive terms. 



DIRECTIONS. The following outline of descriptive terms and explanatory notes accom- 

 panying them may be used as a guide in describing the several types of oats with which you 

 are supplied. Read carefully the descriptive terms and at the same time make a casual study 

 of the oat types before you. This should do much toward clarifying the meaning of the 

 descriptive terms. After a casual study of the oat types turn to the descriptive outline for oats 

 and fill in a careful description of each oat type. 



OUTLINE OF OAT DESCRIPTIVE TERMS. 



I. Panicle. 



1. Kind. 



(a) Spreading. 



(b) Side. 



2. Compactness. 



(a) Compact. 



(b) Medium. 



(c) Open. 



3. Beards (awns)— if present. 



(a) Length. 



Long. 



Medium. 



Short. 



(b) Twist. 



Twisted strongly. 

 Twisted little, if at all. 



(c) Knee. 



Pronounced. 

 Obscure. 



II. Spikelet. 



1. Color of outer glumes, 



(a) Whitish. 



(b) Yellowish. 



(c) Reddish. 



2. Width from tip of outer glume to tip of outer glume. 



(a) Narrow. 



(b) Medium. 



(c) Wide. 



3. Number of fertile flowers per spikelet 



4. Number of sterile flowers per spikelet. 



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