336 EXPERIMENT STATION RECORD. [Vol.40 



Newdick, and directions for the control of potato enemies are given by 

 W. J. Morse. 



Selection of some standard Hocano and Tagalog lowland rices, M. E. 

 Gutierrez (Philippine Agr. and Forester, 6 (1918), No. 5-6, pp. 135-152, figs. 

 8). — Rather detailed observations are recorded on parent plant selections and 

 their Fi progeny of four Ilocano or bearded rices, including Ganado, Iroy, 

 Binalayan, and Dequet fi Bolillsing, and two Tagalog or nonbearded varieti 

 including Binangbang and Blnicol. 



Faddy experiments at Sabour, S. N. Sn. (Agr. Jour. Bihar and Ori**'i 

 [India], 5 (1917), A T o. 1, pp. 48-55, pis. 5). — This notes the progress of variety, 

 manorial, and cultural experiments with rice. Alternate irreen manuring, as 

 compared with continuous green manuring of paddy land, resulted in average 

 yields of 1,635 and 1,946 lbs. per acre, respectively. 



Field experiments with rice, G. E. Coombs and D. H. Grist (Agr. Bui. Fed. 

 Malay States, 6 (1917), No. 3. pp. 159-161. fig. 1). — In experimental work to de- 

 termine the best size of small plats for pure-line breeding Investigations with 

 rice, greater accuracy was obtained from duplicated plats than from single 

 plats. The size of plat ranged from 1/25- to 1/200-acre, and the variations in 

 the probable error were from 5.5 to 9.9 per cent, respectively, for single plats 

 and from 3.8 to 7.1 per cent, respectively, for duplicated plats. 



Sisal in the Hawaiian Islands, V. MacCatjohky and W. WEmaiCH (Hawaii, 

 Forester and Agr., 15 (1918), No. 2, pp. 42-.)8). — This presents an account of 

 the sisal (Agave rigida var. elongata and A. rigida var. sisalana) industry in 

 Hawaii. An effort to produce a hybrid sisal derived from the two variel 

 named is briefly noted, together with chemical investigations of the wa 

 products of the industry. 



Sugar beets, C. A. ZAVTTZ and A. W. Mason (Ontario Dept. Agr. Bui. 

 (totS), pp. 12. fig. l). — The sugar beet industry in Ontario is described, ami 

 rather extensive variety and cultural tests with sugar hoots nre reported. 



In variety tests covering a 6-year period, the three leading varieties in point 

 of sugar production were Improved Imperial with 17 per cent sugar, Klein- 

 wanzlebener with 16.6 per cent, and Petzscheke Elite with 18.1 per cent. The 

 ncro yields of roots for these varieties amounted to 1S.42, 20.68, and 19.07 tons, 

 respectively. 



Duplicate tests were made of planting 3 large, 5 medium, or 8 small clusters 

 of selected seedlings to insure a perfect stand, the plants being afterwards 

 thinned to one in each place. Average yields were obtained amounting to 

 approximately 22.9 tons per acre for the large clusters, 21.85 tons for the 

 medium clusters, and 14.27 tons for the small clusters. 



A comparison of fiat and ridged cultivation extending over a ."-year period 

 resulted in average yields of 19 and 18.1 tons per acre, respectively. 



Experiments were conducted for 5 years with beets sown in 21-in. rows with 

 the beets 7 in. apart in the row to determine the best planting depth. Average 

 yields were obtained amounting to 19.9 tons per acre for a seedinLr depth of 

 0.5 in., 17.2 tons for 1 in., 14.4 tons for 1.5 in., 13.8 tons for 2 in.. KM', tens for 

 .". in., and 5.S tons for 4 in. Tests were also made of growing siiL-ar beets in 

 rows spaced from 12 to 28 in. apart. The average yields for 5 years ranged 

 from 16.96 tons per acre for a planting distance of 2S in. to 20.52 tons for 

 12-in. spacing. The weight per root varied from 0.62 lb. for the 12-ln. spacing 

 to 1.11 lbs. for the 28-ln. spacing. Only slight variations were observed in 

 the percentage of suu'ar or in (he purity of Juice for roots grown in rows at 

 different distances apart. 



In thinning sugar beets to 2. 4. 6. 8, and 10 in. apart in the rows, the average 

 weight per root varied from 0.39 lb. for 2-in. spacing to 1.25 lbs. for lOiu. 



