350 HORTICULTURE [Bot. Absts. 



Patashte, Theobroma bicolor; Pomegranate, Punica granatum ; Cainito, Chrysophyllum cainito; 

 Guava, Psidium friedrichsthalianum; Guayaba, Psidium guajava; Roseapple, Eugenia jam- 

 bos; Pineapple, Ananas sativus; Toronja, Citrus sp.; Limoncillo, Rheedia Sp. Especial em- 

 phasis is placed on the possible value of the papauce. — J. E. Coil. 



2359. Prizer, J. A. Fertilization of citrus groves during period of high priced fertilizers. 

 California Citrograph 4: 231, 255. 1 fig. 1919. — In March, 1919, the delivered cost per unit 

 of nitrogen varied in the different fertilizing material from $5.60 in ammonium sulfate to 

 $17.33 in steamed bone. At the same time loose alfalfa hay could be bought at a price to yield 

 nitrogen at $6.40 per unit. Inasmuch as alfalfa hay possesses aside from its nitrogen con- 

 tent a great value on account of its humus producing power, it is suggested that citrus growers 

 should make a still greater use of alfalfa hay for fertilizing purposes.—/. E. Coit. 



2360. Reed, H. S. Certain relationships between the flowers and fruits of the lemon. 

 Jour. Agric. Res. 17: 153-165. 1919. — The quantitative records obtained during two years 

 study of the vegetative and fruiting cycles of seven bearing Lisbon lemon trees, growing in a 

 commercial orchard in southern California are used as a basis for discussing (a) the seasonal 

 distribution of fruit buds; (b) the size and productiveness of inflorescences; (c) the time 

 required for growth of fruit and the relations of this time to the season at which the buds 

 appear; (d) the numerical ratio of flower buds to mature fruit. — About 66 per cent of the 

 4545 "new buds" studied were produced in March and April; 13 per cent in November; 17 

 per cent between April and November and 3 per cent during winter. The number of flowers 

 per inflorescence varied from 1 to 28. A bud on one of the many few-flowered inflorescences 

 had a greater chance of forming a fruit than one on the few many-flowered inflorescences. 

 Of the 4440 buds observed, 6.62 per cent produced mature fruit after 7 to 14 months. Fruit 

 set in spring had the best chance for survival, and that set in May, June, and July required 

 the shortest average time to attain maturity. — A. J. Heinecke. 



2361. Reimer, F. C. A new and effective disinfectant for pear blight. Better Fruit 

 13 10 : 24-27. Apr., 1919.— See Bot. Absts. 2, Entry 535; 3, Entry 2736. 



2362. Sallmon, W. H. The California Avocado Association: Its history and progress. 

 President's Address. Ann. Rept. California Avocado Assoc. 1918-1919: 44-50. — A review of 

 the origin and activities of the Association from its inception down to date. — J. E. Coit. 



2363. Scott, L. B. Varieties of the Satsuma orange. California Citrograph 4: 176, 199. 

 4 fi{j. 1919. — Recent investigations in the United States and Japan have shown that the old 

 variety name Satsuma really includes a group of varieties which differ in shape, season, and 

 other important characters. The indiscriminate mixing of these forms is the cause of lack of 

 uniformity in Satsuma shipments which has been objected to by the trade. Three of these 

 subvarieties: the Owari, Ikeda, and Zairai have been identified in this country. Future 

 plantings should be limited to one variety and the Owari is suggested as probably the best. — 

 J. E. Coit. 



2364. Seaton, Elwyn D. Prune-tree culture in the great Pacific Northwest. Better 

 Fruit 13 9 : 7-9. 4 fig. March, 1919. — In this popular article special emphasis is laid upon 

 soil culture, proper planting of trees and the development of an extensive root system. The 

 author is a prune grower of long experience. — A. E. Murrteek. 



2365. Shamel, A. D. Further observations upon the application of manure in citrus 

 orchards with the furrow manure system. California Citrograph. 4: 332, 333. 8 fig. 1919. — 

 Popular. 



2366. Shephera, W. P. Packing house of Anaheim Orange and Lemon Association. 

 California Citrograph. 4: 300-301, 326. 2 fig. 1919.— Detailed description with illustrations 

 of a large, fully equipped, modern orange and lemon packing-house in southern California. — 

 J. E. Coit. 



