CURRENT NOTES. 59 



turned with sample fruits of some twenty odd trees, a number 

 of which were found to be of very good quality. These are being 

 propagated for future distribution. Mr. Malvar also found 

 another "Tizon" (Citrus nobilis var. papillaris) of excellent 

 flavor and quality which has been added to the citrus collection 

 at Lamao. 



PETIOLED VS. NONPETIOLED BUDWOOD. 



The last three years' experiments in shield budding tropical 

 fruits which have been conducted by the writer at the Lamao 

 experiment station indicate that for practical purposes in pro- 

 pagation work the tropical fruits may be divided into two groups : 

 (1) Those species the budwood of which may be cut at the time 

 of budding and the petioles cut off close to the bud for instance, 

 the citrus fruits, avocado, guava, and carambola; and (2) those 

 species in which decay enters the bud from the adhering remnant 

 of the petiole so frequently as to make impracticable budding 

 from newly cut budwood from twigs with the leaves still ad- 

 hering, such as the mango, hevi, and cacao. It has been found, 

 however, that this trouble may be easily overcome by the simple 

 method of cutting off the leaf blade about three weeks in advance 

 of when the budding is to be done so as to induce the formation 

 of a leaf scar. Then when the petioles have dropped and a well- 

 healed scar has formed, the budwood may be cut and the buds 

 inserted and tied as in ordinary shield budding. 



In the case of some species, whether or not the bud is of the 

 same age as the stock at the point of insertion is of little or no 

 practical importance, but in other species this condition is one 

 of the requirements for success. Therefore, two chances of 

 failure are insured against in experimental work with species 

 that hitherto have not been budded (a) by defoliating the bud- 

 wood previously to the budding operation, and using what may 

 be termed nonpetioled or scarred budwood; and (5) by inserting 

 the buds at a point in the stock which approximately is of the 

 same age and appearance as the budwood. 



NOTES IiY r CLEVE. \V. MINES, M. S., Station Sni>ci-intt-n<l<-nt. 

 A NEW SUGAR INDUSTRY. 



The beginning of a tropical industry in what would be con- 

 sidered a semitropical climate was noted in 1914, when the 

 Southwestern Sugar Company of Arizona milled their first crop 

 of sugar cane and made it into sugar. The factory had been 

 used previously for the manufacture of beet sugar only. It is a 



