PLANT BREEDING 



1603 



Tabi^e II. — Proportion of barium in the leaves of various plants. 



Species 



Time of cutting 



Barium sulphate 



Dogwood . . 

 Cotton wood 



Cheriy . . . 



Black loatst 

 Mulberry . . 



Elm .... 



I,inden . . 

 Wild olive 

 Plum. . . 



Box elder 



Hard maple . 

 Walnut . . . 

 Pear .... 

 Soft maple . 

 Wild grape . 

 Wild cherry. 

 I<ime . . . 

 Elderberry . 

 Black walnut 

 Sumac . . . 

 Blackberry . 



per cent 



1 172 - Cereal Selection in Croatia, Austria Hungary. — mandekic v., in Zeitchriftiw 



Pflanzenziichtung, Vol. II, Part. 2, pp. 161-192. Berlin, June 1916. 



Wheat. — The selection of wheat was first carried out at Krizevci 

 Agricultural High School, and dealt with indigenous and foreign varieties, 

 the former proving to be the less productive. Among foreign varieties 

 vSirban Prolific has given the best results up to the present. Its pedigree 

 is unknown, but probably it is derived from a spring wheat. During five 

 years experiments Sirban Prohfic has given consistently higher yields 

 than the wheats Banat, Friiher Bastard, Renodlad, Golden Perle, Extra 

 Squarehead, Imperial, and the best indigenous varieties. It has how- 

 ever the disadvantage that it cannot stand the winter cold. In 1911-1912 

 some hundreds of ears of Sirban Prolific were selected and the seeds were 

 sown the following year. The best lines that were thus obtained were Red 

 Sirban Prohfic, White Sirban Prolific, Rust-resisting Red Sirban Prolific, 

 Sirban Prohfic with dark grey ears, Grey bearded Sirban Prolific. 



As soon as the value of this variety was recognised, attempts were 

 made to cultivate it in other parts of the country with satisfactory results. 



PLANT 

 BREEDING 



