Southern field crops (exclusive of forage plants) . (d) size and color of cob. 126 SOUTHEEN FIELD CROPS Literature DuGGAR, J. F. Ala. Expr. Sta., Buls. Nos. Ill and 134. Williams, C. B. N. C. Expr. Sta., Bui. No. 204. KiLGOKE, J. B., and others. N. C. Board Agr., Bui. Vol. 29, No. 2, and , E. L. U. S. Dept. Agr., Office Expr. Sta., Bui. No. 59. CHAPTER VII CORN — BREEDING OR IMPROVEMENT CoEN breeding is concerned with determining (1) whatqualities of grain, ear, or plant are hereditary; (2) thebest method of finding hereditary qualities; and (3) themeans of improv-ing or modify
Southern field crops (exclusive of forage plants) . (d) size and color of cob. 126 SOUTHEEN FIELD CROPS Literature DuGGAR, J. F. Ala. Expr. Sta., Buls. Nos. Ill and 134. Williams, C. B. N. C. Expr. Sta., Bui. No. 204. KiLGOKE, J. B., and others. N. C. Board Agr., Bui. Vol. 29, No. 2, and , E. L. U. S. Dept. Agr., Office Expr. Sta., Bui. No. 59. CHAPTER VII CORN — BREEDING OR IMPROVEMENT CoEN breeding is concerned with determining (1) whatqualities of grain, ear, or plant are hereditary; (2) thebest method of finding hereditary qualities; and (3) themeans of improv-ing or modifyingheredit ary qualit ies. In other words,the plant-breederstask is to maintaindesirable quahtiesnow in existence,and to add to themor so to combinethem as to makesubsequent cropsmore productive,or other-nise bet-ter suited to thefarmers needs. 109. Improve-ment of varieties. — Corn is so easily cross-pollinated and mixed withinferior kinds (Fig. 70), that few of the so-called varietiesare strictly pure or uniform. Indeed, until within the 127. Fig. 70. — Shotting the Effects(in the Cuhhent Choss) of crossing aWhite Pop Corn (on Left) with PollenFROM a Yellow Dent Corn (on Right).The resulting hybrid ear with both white and yellow grains is shown in the center. 128 SOUTHERN FIELD CROPS past few years but few attempts have Ijeen made in theSouth to improve varieties by breeding or even to keeppure the best existing varieties. Almost any local kind,now found to be productive and otherwise valuable in itsspecial locality, is worthy of being improved by carefuland scientific methods of breeding. The first effort of the breeder should be directed towardsincreased yield, to secure which he should select chieflythose plants which carry the greatest weight of he should aim at uniformity, and at the other quali-ties usually considered desirable. Rather than to attemptto create an entirelj new variety by crossing two existingkinds, he should start with one ex
Size: 1678px × 1488px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauth, bookcentury1900, bookdecade1910, booksubjectagriculture
