1908.] Summary of Agricultural Experiments. 623 



Varieties of Potatoes {Harper-Adams Coll., Field Expts., 1907). — Trials 

 were made of four Early, four Second Early, and ten Maincrop varieties. Of 

 the early varieties, Epicure was ready for lifting first and produced the 

 largest amount of saleable potatoes, but when cooked it was very watery. 

 Of the Second Earlies, British Queen and Colleen produced good crops. The 

 latter is a promising Irish variety ; it was free from disease and cooked well. 

 Up-to-Date, Factor, and Warrior were at the top of the Maincrop varieties. 

 A cooking test was made of six varieties. Two potato trials were also made 

 on farms in Staffordshire. 



Varieties of Potatoes {Cambridge Univ., Dept. of Agric., Guide to Expts., 

 1907). — Tables are given showing the results of twelve tests of varieties of 

 potatoes carried out in 1903, 1904, 1905, and 1906. 



Varieties of Potatoes {Univ. Coll. of Wales, Aberystwyth, Dept. of Agric, 

 Rept. on Expts., 1906). — Twenty-two varieties of potatoes were grown. 

 These trials have been in progress for several years, and in 1905 the 

 Dalmeny varieties yielded such heavy crops that it was considered advisable 

 to try a larger number of them in 1906. The manures applied were 12 tons 

 dung, § cwt. sulphate of ammonia, 3 cwt. superphosphate, and \ cwt. of 

 sulphate of potash. The best results were obtained with Dalmeny Radium, 

 Dalmeny Acme Kidney, Dalmeny Empress Queen, British Queen, Beauty 

 of Bute, and Dalmeny Hero. A cooking test was made of most of the 

 varieties. 



Varieties of Potatoes {Monmouthshire Education Com., Potato Trials, 

 1907). — These trials were carried out at White House Farm, Llanfair, Aber- 

 gavenny, and the results are given of the produce from 18 selected tubers 

 of 30 varieties and from 28 lb. of seed from 1 5 varieties. A cooking test was 

 also made. 



Varieties of Potatoes {Univ. of Leeds, Agiic. Dept., Bull. Nos. 63 a?id 70). 

 —The relative merits of a number of varieties of potatoes have been tested 

 at the Garforth Farm for a number of years, and these Bulletins give the 

 results for 1906 and 1907. As regards early potatoes the best results were 

 obtained in 1906 from Midlothian Early, Harbinger, Sir John Llewelyn and 

 Recorder. In 1907 Harbinger gave the lowest yield and it was considered 

 unsuited to tiie conditions prevailing at Garforth. The best Second Early 

 varieties were British Queen II, an improved type of the old British Queen, 

 and Dalmeny Radium, which is also of the British Queen type. A cooking 

 test was made and British Queen II was considered the best, but there was 

 practically little difference between the other varieties. The seed of all the 

 varieties was grown at Garforth from seed obtained from the raisers in the 

 preceding year. As regards Maincrop varieties, Duchess of Cornwall, Factor, 

 Dalmeny Beauty, Wonder, Dalmeny Regent, and Up-to-Date were among 

 those giving the best results. These are all of the Up-to-Date type, and 

 it is noted that this is still the best type of potato for a farmer to grow, 

 notwithstanding the unfortunate fact that it is comparatively liable to disease. 

 Northern Star proved a vigorous grower in 1907 and was very resistant to 

 disease. 



Trials were made in 1907 of three disease-resisting varieties, viz., Apollo 

 and Prof. Wohltmann, two German varieties, and Daisy, a Dutch variety. 

 Seed of Prof. Maercker, another German variety, was also included. The 

 wet season and other circumstances made the test a genuinely severe one., 

 but no disease was observed. On the other hand, the yields were compara- 

 tively poor. The trials will be repeated with seed saved from these crops. 



