56 



The Journal of Heredity 



are ovate instead of lanceolate, thus 

 increasing the yield of cigar wrappers. 

 The average leaf number is 26 instead 

 of 19; and the leaves are upright in- 

 stead of drooping, though they are not 

 grouped together on the stalk as closely 

 as might be desired. The strength, 

 elasticity, grain and color of the cured 

 article is ail that could be wished. The 

 lighter colored leaves of a greenish 

 shade are indistinguishable from high 

 grade Sumatra wrappers in appearance, 

 though possessing somewhat better 

 texture and flavor. At a meeting of 

 tobacco growers recently, cigars 

 wrapped with Round Tip could not be 

 separated from cigars W'rapped with 

 Sumatra by the most distinguished 

 tobacco experts present. The darker 

 leaves of the brownish grades are very 

 like imported Cuban wrappers, but in 

 the opinion of many have a better 

 burning quality. Crops of 2,800 pounds 

 per acre have been secured, though 

 these were obtained under extraor- 

 dinarily good conditions. Under aver- 

 age growing conditions yields of about 

 2,000 pounds per acre may be expected. 

 When it is realized that the types 



commonly grown yield only about 

 1,500 pounds, the increase is notable. 



It remains to be seen whether a new^ 

 tobacco of this kind can be introduced 

 to such a conservative market as that 

 to which it must be offered. But the 

 type has now had a three year test, 

 satisfying the requirements of some 

 thirt\' planters who haAC grown it on 

 considerable areas. It is as uniform in 

 type as any of the older varieties and 

 possesses, besides the market require- 

 ments mentioned above, some field 

 characters which delight the grower. 

 Not the least of these is a wonderful 

 root system making it stand up under 

 winds that lay other tobaccos low, and 

 a resistance to root rot which came to 

 it by accident rather than by design of 

 the plant breeder. One prominent 

 grower says of it: "If it does not 

 largely replace other tobaccos of the 

 Connecticut River district in the near 

 future and add millions of dollars to our 

 wealth, it will be because of timidness 

 on the part of the buyers who have been 

 taught that anything new in the 

 tobacco trade is something to be 

 shunned." 



BREEDING EARLESS SHEEP 



Chr. Wriedt 



Department of Agriculture, Kristiania, Norway 



In the Journal of HiiREDiTV, Vol. two earless offspring. 



XI, No. 5, Prof. K. G. Ritzman re- 

 ported that short-eare<l sheep, in in- 

 bretxling, have gi\en earless offspring. 

 This result was reported b\' the writer 

 in 1918,' who also a(l\anred the 

 h\i)othesis that the earless sheep was 

 the homozygote and the short-eared 

 was the heterozygote. 



The results of breeding experiments 

 for 1920 and 1921 are as follows: One 

 earless ram mate<l with normal sheep 

 gave five offspring with short ears. Oni' 

 earless sheep mated with a normal ram 

 gave one offspring with short ears. A 

 mating earless X earless has given 



The hypothesis 

 that the earless sheep is the homozy- 

 gote aad the short-eared is the hetero- 

 zygote of normal X earless mating is 

 thus nearl>' proven by this result. 



Short ears in sheep were formerly 

 \ery common in N()rwa\-. The writer- 

 has foimd this t>pe in the south, in 

 the middle antl in the west of the 

 country, and also has information that 

 the type has spread in the north. 

 Dr. Dure has, according to Adamctz,'' 

 found the t>-pe in Bochara in the Kara- 

 kul breed. Adametz mentioned also 

 that Iwaneieff had seen the earless t\pe 

 in the same breetl. 



' rhr. W'ricflt 1919. (M)or die \'crerl)tinK \nn Ohri'iiliinRo In-iiii Schafi'. /Aitschrift fiir Iiuliik- 

 tivc .'Mist.iinimin^,' iiml XCrfrlniii^^slchn- H.iiid X.\ I'.ij^. 1(^1 ().^. 



= (hr. Wriedt 1914. l'l)er die kurzohri^jc Schafrasse NorweKcns. Jahrl). f. wisscnschaftliche 

 und praktische Tierziicht IX S. 2M) 2(>7 . 



'Leopold Adametz 1917. Stiidien iihcr die Mendclsche V'crcrhiinj; der wichtigsten Kasscmerk- 

 niale der Karakiilsch.ife lu-i Reinziiclit mid mit RamI)oiiiilets. S. 15J l.S,<. 



