. Genetics in relation to agriculture. Livestock; Heredity; Variation (Biology); Plant breeding. PURE LINEf^ 259 Significance of the Pure Line Theory in Breeding.âThe que tion thus arises: How does the pure hne theory explain the fact that man has wrought profound changes in domesticated animals and plants by selec- "Normal" Range of Variation Mode. Normal Range of Variation Mode / \ ^ / =: "x \ 1 /_ :__ = XI \ k, 4 - â n = '-^^ / y is ^ â ^ ^1 1 5^ X ^ ^ / 3^ ^^ ^ = ^ £^ ^ ^s. s \ \ ^1 1 /- IX ^ / = = tli ^ J = â :^ = f ^ \ \ \, 1 - ^ = :^ ^ VIII ^ = i 1 K ?!!v !S = = ^ L^ ~ I
. Genetics in relation to agriculture. Livestock; Heredity; Variation (Biology); Plant breeding. PURE LINEf^ 259 Significance of the Pure Line Theory in Breeding.âThe que tion thus arises: How does the pure hne theory explain the fact that man has wrought profound changes in domesticated animals and plants by selec- "Normal" Range of Variation Mode. Normal Range of Variation Mode / \ ^ / =: "x \ 1 /_ :__ = XI \ k, 4 - â n = '-^^ / y is ^ â ^ ^1 1 5^ X ^ ^ / 3^ ^^ ^ = ^ £^ ^ ^s. s \ \ ^1 1 /- IX ^ / = = tli ^ J = â :^ = f ^ \ \ \, 1 - ^ = :^ ^ VIII ^ = i 1 K ?!!v !S = = ^ L^ ~ I ^ k s \ N 1 h f= - r â ^ X M = = = ^ ^ != \" ^ -. 1 1 ^ VI ^ â¢rf ^ /"= ^- ^;=N ;|t ^ - - â =^ = ^' 5 = = f i \ k ^ ^ 1 ^ /-= r- -A b^ 1 55= - - = ^ c N ^ N 1 ^ ^ X ^ = =^ "^ J ~ "^: y- - F J ~ V ^ \, ^1 L ^-1 â.-_ - -i^ ;^^Li I 5i III M ^ rz= ~" " '^= 1- A ^ :^ V \ - ~^| t /--^ -ââ ; : V II 4 ^ /-=-= =-J \ N - = = = il ^â =1 ^ ^ "^ I n Fig. 107.âDiagrammatic representation of results of three experiments in selecting beetles in an effort to create an albinic strain from a pure strain. {Frovi Tower.) tion? It is well known that as a rule a mixed population consists of a number (probably quite large) of distinct biotypes and that in autoga- mous species these biotypes are pure lines to begin with, while in alloga- mous species it is only by continued intensive selection that existing Digitized by Microsoft®. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Babcock, E. B. (Ernest Brown), b. 1877; Clausen, Roy Elwood, 1891-. New York, McGraw-Hill; [etc. , etc. ]
Size: 913px × 2736px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksu, booksubjectplantbreeding
