University of Arizona 317 



From Table VI it is seen that Early Baart (34-16) surpasses 

 every other variety represented in the table in volume of loaf. In 

 all these tests the same quantity of flour was taken for baking the 

 loaf. The column of figures representing loaf volume, therefore, is 

 of primary importance in judging the strength of the flours. Ari- 

 zona 39 (39A-9) and Sonora (35-12) came nearest to the Early 

 Baart in baking strength, but the difiference is great enough to 

 place Early Baart considerably ahead in this quality. 



Of all the varieties tested so far by this department. Early 

 Baart outranks all others as a milling wheat. Its yield is about 

 the average of bread wheats in the State, and there is, therefore, 

 room for considerable improvement in this direction. Early Baart 

 has the disadvantage of being awned (bearded). Some farmers 

 object to the presence of awns, for, \l it becomes necessary to cut 

 the grain for hay, the hay produced- is of an inferior quality. The 

 beards also render the handling of the wheat previous to threshing 

 somewhat uni)leasant. For this reason the department is bringing 

 forward as rapidly as possible certain other bread wheat strains 

 which, it is believed, will yield, with a few year's further breeding, 

 as well as the Early Baart and which will at the same time be a 

 good millling wheat free from awns. 



BEANS 



The work of the department with beans this year has been 

 largely along investigational lines related to the various Mendelian 

 genetic factors of the plant. It was anticipated that along with 

 this scientific investigation an economic result might in the end be 

 accomplished. The better the plant is known, genetically, the 

 easier will it be to combine characters in the attempt to produce 

 nearer the ideal. 



Particular study was given to the variation of the internodes 

 as afifecting the variances in height of the plant and also as affecting 

 the variation in the percentage of supernumerary leaves. In the 

 anticipation of the latter it was assumed that internode length could 

 vary to zero thereby causing a crowding together into within a 

 practicallv immeasurable zone of the first two or three, or four 

 nodes, each node carrying its leaf, and thus giving a set of super- 

 numerary leaves. The plant having all internodes measurably shows 

 two leaves at the first node and one at each node thereafter. Thus 

 in the case of a zero length of the first internode we would find 

 three primary leaves ; zero length of the first and second internodes, 

 four primary leaves, etc. Data covering about three years' work 



