THE STEMS 



In the first table below is given the length of the ear, and the separate 

 internodes of the straw from week to week, from the commencement 

 of the " shooting " period to the time at which the straw reached its 

 greatest height ; in the second table the increase in length from week to 

 week is recorded. As the stems are at first hidden by the surrounding leaf- 

 sheaths and cannot be examined when young without destroying the 

 plants, measurement of the growth of a single individual straw cannot 

 be carried out. The figures from April n to May 30 are averages 

 obtained from ten straws of similar size and development ; those from 

 June 6 onwards, however, refer to a single stem, the parts of which were 

 clearly visible and easily measured after this date. 



TABLE I 



LENGTH OF THE STRAW AND EAR OF A SQUAREHEAD WHEAT AT 

 WEEKLY INTERVALS FROM APRIL n TO JUNE 27, 1914 



4 th. 



2-6 



66 



iK-o 



2fO 



21 5 



21 5 

 21 5 

 21 5 



TABLE II 



AMOUNT OF INCREASE IN LENGTH OF THE STRAW AND EAR FROM 

 WEEK TO WEEK (.\PRII. n TO JUNE 27, 1914) 



Intcmodcs. 



3rd. 4th. 



5h. 



6th. 



Whole 

 Straw . 



Kar. 



