Appendix E 463 



clonal test plat should be cultivated and hoed sufficiently to 

 keep the weeds down and to allow the full development of the 

 plants. 



8. Fifth Year. Selecting the best clonal rows. When the 

 plants are well headed and are , about to begin blooming, the 

 final examination can be made. Go over each row carefully, 

 and examine it with reference to yield and desirability of type, 

 and select the superior row or rows. It will be best to retain 

 at least 2 or 3 of the best rows ; or more, if there is but little 

 difference in them. Good early-maturing and late-maturing 

 rows should be retained if both are present in the test plat. 

 When this selection has been made, cut the crop on the dis- 

 carded rows immediately so that the pollen from these dis- 

 carded rows will not contaminate, by cross-fertilization, the seed 

 which is being developed in the selected rows. At any con- 

 venient time these discarded rows may be dug up and the space 

 filled with new plants grown from cuttings of the chosen plants. 

 By a little care and cultivation these select rows can be retained 

 5 or 6 years as a source of supply of seed of a superior kind. As 

 the rows of selected types begin to run out, or become impure 

 by ordinary timothy plants around them, or by other grasses 

 growing in the clumps, other or more extended clonal rows 

 could be planted from them. 



9. The multiplication plat. The seed from the select rows 

 of the clonal test plat should be sown in the early fall, sometimes 

 before the 15th of September in broadcast plats, as large as the 

 amount of seed obtained will permit. Sow these plats, at the 

 rate of about 16 pounds to the acre. There should be enough 

 seed from each row to plant about f acre. 



Sixth Year. The seed from these broadcast multiplication 

 plats can be utilized the next year to plant a fairly large field 

 which, if desired, may be harvested for seed to plant still larger 

 areas. These plats may be utilized for seed for several years 

 before they run out. 



