158 Journal of Agricultural Research (voi.iu.no.: 



BUDDING AND GRAFTING EXPERIMENTS 

 NORMAL BUDS AND CIONS ON ROSETTED STOCKS 



Four badly resetted trees in the J. B. Wight orchard at Cairo, Ga., 

 were budded from healthy Frotscher pecan trees in April, 1903. All 

 lived and showed rosette the following season. 



Eighteen rosetted trees in the orchard of Mr. G. W. Saxon, at Talla- 

 hassee, Fla., were cleft-grafted with normal cions from an old seedling 

 tree in February, 1912. Most of the cions began to put out leaves in 

 the spring, but all except three were destroyed by bud worms. These 

 three put on a vigorous and apparently healthy growth the first part of 

 the season, but toward fall and during the following summer symptoms 

 of rosette were distinct in all three cases. 



In an orchard of the Standard Pecan Co., at Monticello, Fla., two 

 badly rosetted trees of each variety — Schley, Stuart, and Pabst — were 

 budded with several buds from a healthy tree. Observations the fol- 

 lowing August showed two buds on each of the Schley pecans living, 

 four and six buds on the two Stuart trees, and one bud on one of the 

 Pabst trees. All shoots from these buds were badly rosetted. 



ROSETTED BUDS AND CIONS ON NORMAL STOCK 



In the spring of 1903, 24 buds subtended by distinctly rosetted leaves 

 were put into healthy nursery trees, and 24 similar buds into healthy 

 orchard trees of Mr. J. B. Wight, Cairo, Ga. Observations in midsummer, 

 1904, showed 13 living buds in the nursery, and of these i had a dis- 

 tinct case of rosette, i a trace, while the others were normal. Of the 

 buds put into the orchard trees, 20 were living and only i had rosette. 

 In the latter case the tree had developed rosette over the whole top sub- 

 sequent to the budding operation. This being the only one behaving in 

 this manner it can hardly be considered probable that the rosette in 

 this case was transmitted through the bud. 



One hundred buds from rosetted branches were worked on nursery 

 seedlings at the same place in August, 1906. A large percentage lived, 

 and in the following midsummer no traces of rosette could be found on 

 any of them, though the trees from which the buds were taken still 

 showed the disease. 



In August, 1907, 82 more buds were inserted on healthy seedling 

 stocks in the same nursery. Observations the following season (October, 

 1908) showed the same results as in the last experiment. 



Twenty to thirty rosetted buds of each of the Schley, Pabst, and 

 Stuart varieties were worked on nursery seedlings belonging to the 

 Standard Pecan Co., Monticello, Fla., in August, 1912. In the following 

 August, out of the 12 living Schley pecan buds i showed a doubtful 

 trace of rosette; of the 10 living Pabst buds i showed a distinct and i 

 a doubtful trace; and of the 10 living Stuart buds i showed a distinct 



