250 GENETICS [Bot. Absts., Vol. VI, 



1706. Kiessling, L. C. Kraus. Zeitschr. Pflanzenzucht. 6:222-225. Dec, 1918. 



1707. Kiessling, L. Die Leistung der Wintergerste und deren ziichterische Beeinflus- 

 sung. [The yield of winter barley and its modification by breeding.] Illustr. Landw. Zeit. 

 1919: 310-311. 1919.— Author reviews the many varieties of two- and four- rowed barleys and 

 indicates aims of breeding; namely, to secure as short-lived a condition as possible without 

 depression of yield, to maintain high yield and power to stand up under heavy nitrogen fer- 

 tilization, and to produce large full grains with low albuminous content and a minimum 

 chaff. [From anonymous review in Zeitschr. Pflanzenzucht. 7: 126. Dec. 1919.] — /. P. 

 Kelly. 



1708. Killer, J. Uber die Umziichtung reiner Linien von Winterweizen in Sommer- 

 weizen. [Concerning the changing-over of pure lines of winter wheat into spring wheat.] Jour. 

 Landw. 67: 59-62. 1919. — With pure lines of winter wheat experiments were conducted to 

 reveal spring wheat possibilities. All Bordeaux wheats serve as either summer or winter 

 cereals. All tested thick-headed wheats with spring sowing send up shoots and show more or 

 less development of heads but decided "Landwinterweizen" do not send up shoots with such 

 sowing. Details of experiments are not given. [From anonymous review in Zeitschr. Pflan- 

 zenzucht. 7: 126. Dec. 1919.]— J. P. Kelly. 



1709. Klatt, Berthold. Keimdriisentransplantationen beim Schwammspinner. Ein 

 experimenteller Beitrag zur Frage der Vererbbarkeit erworbener Eigenschaften. [Germ-cell 

 transplantation in Lymantria. An experimental contribution to the question of inheritance of 

 acquired characters.] Zeitschr. indukt. Abstamm. Vererb. 22: 1-50. Dec, 1919. — A full 

 description is given of the colors and external features of the normal gypsy-moth larva, of a 

 yellow-spotted race supposed to be the product of a cross between L. japonica and L. dispar, 

 and of a dorsally black-banded strain. Yellow-spotted is probably dominant to normal, 

 but not discontinuous from it, and probably dependent upon multiple factors; black is domi- 

 nant to non-black (yellow or normal), from which it is discontinuous. Gonads of recessive 

 were transplanted into a dominant, which was mated later with a recessive to ascertain 

 whether period of 8-9 weeks in body of the dominant would affect the offspring, endowing 

 them with any characteristics of the dominant; e.g., ovary of normal transplanted into body of 

 black-banded female after removal of ovaries, mated with non-black, yellow c? gave 7c? d 1 , 

 7 9 9, "first class" yellow. In more than 400 larvae from eggs matured in the body of a foster 

 mother, not one showed any modification in the direction of the special characteristics of 

 the foster parent. However, eggs that matured in the body of a female of the black race par- 

 took of the superior vigor of that race, shown by rapid growth and large size. — An average 

 of 7-8 per cent of offspring from 9 9 subject to operation showed loss of one or several median 

 or lateral tubercles in one or more segments, excluding the first and last; but 3 or 4 control 

 broods showed no such loss. Removal of certain tubercles from various segments to see if 

 in the next year the offspring of this individual would lack the corresponding tubercles in 

 four broods gave negative results; but in a fifth, and subsequently three other broods from 

 mothers that had not been operated upon, a similar though less marked defect was seen. 

 It is suggested that a general injury to determinants for the development of tubercles may 

 have occurred, due to difficulties in metabolism during healing, or due, in case of defect in 

 normal control broods, to bacterial disease in the brood of the previous year. There was 

 no evidence of inheritance of mutilations. A discussion of the experiments of Harms, 

 Magnus, Guthrie, Kammerer, and Castle and Phillips is given. — /. H. Gerould. 



1710. Kottur, G. L. An improved type of cotton for the southern Maratha country (Bom- 

 bay Presidency, India). Agric Jour. India 14: 155-167. 1 pi. 1919. — Gossypium herbaceum 

 predominates in this region. This variety shows two types — erect and bushy. Test shows 

 superiority in yield of erect type. By unit selection a variety is grown that bears more and 

 has lint of greater value. — Ganda Singh Cheema. 



