206 



Guayule. 



When it is desired to transplant the seedlings, the tubes will be found 

 to be soft and partially decayed, so that they may be torn by slight pres- 

 sure when being placed in the ground. This will favor a prompter adjust- 

 ment to the new conditions. The loss will vary and can not be foretold, 



FIG. 20. The same root-system as shown in fig. 19, B, projected on a 

 horizontal plane. 



but with care should be small. As time did not permit an extended trial 

 of this, however, I am unable to state economically valuable results, 

 though some indication has been had from the following: 



Experiment 79. Of 449 seedlings (small plants i to 5 years old), 

 transplanted into irrigated ground by a peon, 300 lived. The 

 transplanting was done Nov. 26, 1907, care being taken to pre- 

 vent the roots from drying out, and the ground was well irri- 

 gated. On Feb. 16, 1908, the first indications of growth were 

 seen, but the plants started unevenly, some not showing signs 

 of new growth until Apr. 9. 



Experiment 159. May 3, 1908, 5 seedlings were transplanted in i- 

 inch tubes, the upper 5 cm. of the tube only being preserved. 

 All lived and grew well till last observed, Sept. 1908. 



Experiment 153. Apr. 8, 1908. Of 14 small seedlings (epicotyl 10 

 mm. long in the largest) transplanted into a prepared bed, 12 

 grew well, 2 died. 



Experiment 164 (J. E. Kirkwood). On May 13 a bed was prepared 

 by digging up the soil and flooding to a depth of 4 inches. On 

 the following day i -square-inch paper tubes containing seedlings 

 an inch high were set in the wet ground their full length. These 

 plants had been grown in the tubes from seed and were some 

 two months old. 64 of these were planted, and nearly all lived. 



Experiment 165 (J. E. Kirkwood). 50 tubes containing plants of 

 the same lot as the preceding were set in relatively dry soil 

 which showed visible moisture an inch or so below the surface. 

 This was done May 1 4 and the ground received water to saturate 

 several inches on the i8th and igih. A few of these survived. 



