FIELD CHOPS. 835 



The results of actual experiiuents show that tobacco can be produced profit- 

 ably in the Connec-ticut \'a!ley under shade if a good strain of seed is secured 

 and proi)er cultivation and lland^ln^' of the croi) is given. The best cloth to use 

 for shade is one with ll! hard-twisted threads to the inch. This kind of cloth in 

 an experiment produc«>d a higher yield and a better quality of tobacco than 

 cloth which contained oidy S threads to the inch. It has been found in experi- 

 ments, and subsequently in general practice, that sterilized setnl beds insure an 

 abundance of good healthy i)lants. 



Sumatra tobacco: Culture, curing, marketing. E. Mathieu {Singapore, 

 JiHJS, i>i). ')L piix. .i). — This publication briefly outlines the history and culture 

 of the tobacco plant in Deli. 



The yellow berry problem in Kansas hard winter wheats, II, F. IIorerts 

 and (J. F. Fkkkma.x {Kaii.sds Sfn. liiil. l')ii. pp. 33, dgm. 1). — This bulletin re- 

 views the resulls obtained by other investigators of the yellow berry problem 

 and reports experiments conducted by the authors to determine the causes of 

 this dffftculty and means for their removal. The work of the Nebraska Station. 

 partly fe viewed here, has been previously noted (E. S. It., 17. p. U4()). 



By the term "yellow berry" is meant the appearance of grains of a light 

 yellow color, opaipie. soft, and starchy in hard winter wheats which normally 

 produce a hard, flinty, translucent grain of medium size and of a clear, dark 

 reddish amber color. S(»nietinies only a part of the kernel will show the yellow 

 berry characteristics. It is ixiinted out that the data at hand indicate that the 

 ordinary soft and starchy wheats of the Pacific Coast and the Middle and South- 

 ern States average somewhat higher in weight per bushel than the hard winter 

 and spring wheats, and that the yellow berry in this respect does not resemble 

 the soft wheats, the weiglit as well as the specific gravity falling below the 

 flinty kernels of the same variety. This is considered as reducing the question 

 to what extent the production of yellow berries is inherent in the variety, and 

 to what extent it is due to seasonal influences. In 21 varieties examined the 

 average weight of the yellow berries per 100 was 2.r»'.)6 gm., and that of the hard 

 flinty grains 2.740 gni. The average specific gravity of the yellow berries was 

 I.IHH and of the normal grains l..'5H(J. It is linown that the yellow berry con- 

 tains less i)rotein than the flinty kernel, and it is believed that the reducti(m in 

 8i>ecitic gravity is j»robably due to air cavities within the kernel and possibly 

 to a rj-iluced starch content. 



To determine the relation bclwceu the amount of yellow berry pi'oduced und(>r 

 the climatic couilitions of the particular season. 12S varieties of wheat were 

 grown during l!Mir»-<> and lJ>0("»-7. The heads were harvested when considered 

 fully riiie and dried under cover, so that the existence of yellow berry could not 

 be attriltuled t<t overripeness or exposure to the weather after cutting, but could 

 only be ascribe<l t<» the influence of the weather before harvesting the heads or 

 to inherent iieredltary teiulen<Mes in the varieties themselves, or to both. Only 

 clear kernels with a reddish amber color throughout were considered as normal 

 grains, while tiiose either wholly or in part yellowish. opa(pu\ and starchy were 

 classitied as yellow berries. 



The mean (emiierature during the wheat vegetative season. September to .June, 

 inclusive, in liMi." C. w.ts ."1.:n° V., and in ll)0«;-7. 40.10°. while the total i>recipita- 

 tion for the <-orr«>sponding iieriods was 2r».72 and 21.11 in., respwtively. The 

 average total vegetative season made up of the fall vegetative period, or the 

 number of days from planting to January 1, and the spring vegetative period, 

 or the number of days from .March 1 to maturity, was 2(57 days In 100(5 and 27!) 

 days in 1007. The average percentage of yellow berry was Xi in I'.MMS and .'>!) 

 in 1007. To interpret the results with regard to the relation of temi)era(ure, 



