mo 



STARCH CROl'S 



visible or very slight colouring! %, colouring at end ; ^, one half at least 

 of the surface of the embryo is strongl> coloured ; ^j^ the entire surface of 

 the embryo is strongly coloured. This very simple system allows the 

 farmer to determine with sufhcient accuracy to what extent the injury 

 produced by threshing can impair the germination faculty and the keeping 

 property of grain. 



86 1 - Cultural, Food and Industrial Value of some Varieties of Potato tested in Hungary. 



— SzEix ly. (Chair of Chemistry aud Technologj- of the Royal Hungarian AgricultunJ 



Academy at Debreczen), in Kiserletiigyi Kozlemenyek (Bulletin of Hungarian Scientific 



Agricultural Stations), Vol. XVIII, Part 3, pp. 659-666, tables. Budapest, 1915. 



Experiments carried out in 1914 on the test fields of the agricultural 



Academy of Debreczen, with the 6 varieties of potato — Up to Date, 



Richter Imperator, Silesia, Bohms' Erfolg, Jubel and Record — planted 



after autumn rye, in compact sandy soil at about 19 14 ins apart. The 



varieties Jubel, Record, Bohms' Erfolg and Silesia were greenmanured 



in the autumn, and in the spring given a dressing of 232 lbs. of 



superphosphate and 155 lbs. of potash salts (40 %) per aere ; Up to 



Date and Imperator received only green manure. The monfclily rainfall 



and average daily temperatures varied as follows from the beginning of 



April to the end of October. 



Particulars with regard to time of plantation and crop, and also con- 

 tent of starch and dry substance, are contained in Table I, 



Table I. — Yields of the Different Varieties. 



Date of : 



Yield of tubers 

 cwts per acre 



2nd class 

 small 

 tubers 



ist class 

 large and 

 medium 

 tubers ! 



Avejage content 

 of: 



Q 2 



Yield of starch 

 and drv matter 



cwts per acre 



E 



Up to date . 

 Imperator . . 

 Jubel .... 

 Record . . . 

 Bohm's Erfolg 

 Silesia .... 



16 IV 19 X 



» >. I 19 X 

 » .. 8 IX 

 » » 8 X| 



» » j 9 XI 

 » » 9 X 



79.93 



99-38 



105-54 



90.88 



105-73 

 91.30 



15-91 



3833 



78-44 



53-13 



85-26 



9''-33 



95-84 

 137-71 

 183.98 



144-03 

 190.99 

 187.68 



20.0 % 



19.8 



20.7 



21.8 



20.8 



20.7 



25.8% 



25.6 



26.5 



27.6 



26.6 



26.5 



19.17 

 27.26 

 36.67 

 31-38 

 40.88 

 38-84 



24-73 

 34-55 

 46.95 

 39-73 



52.28 



49-73 



