. Botany, with agricultural applications. Botany. 578 PLANT BREEDING This method of selection is productive of good results, but has some disadvantages. It requires much time and labor as well as the use of much ground. Since each crop is grown from seed furnished by many plants selected the previous year, the progeny of many plants are involved and the yield of a crop. Fig. 487. — Dakota Amber Sargo, a strain that matures much earlier and is more drought-resistant than the South Dakota No. 341 from which this new strain was produced by selection. After Dillman. is the average yield of the des
. Botany, with agricultural applications. Botany. 578 PLANT BREEDING This method of selection is productive of good results, but has some disadvantages. It requires much time and labor as well as the use of much ground. Since each crop is grown from seed furnished by many plants selected the previous year, the progeny of many plants are involved and the yield of a crop. Fig. 487. — Dakota Amber Sargo, a strain that matures much earlier and is more drought-resistant than the South Dakota No. 341 from which this new strain was produced by selection. After Dillman. is the average yield of the descendants of many plants varying in capacity and heritage for high yield. Many of the plants in the selection are likely to be heterozygous for the character and consequently will not breed true. Races obtained by this method of selection usually lose their desirable features unless selection is continued. Pedigree Culture. — The value of pedigree cultures was well demonstrated by De Vries and Mendel. In the method of selection by pedigree cultures, a single plant is selected, and from its progeny, which are carefully guarded, the best indi-. 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 Martin, John N. (John Nathan), b. 1875. New York, John Wiley & sons, inc. ; [etc. ,etc. ]
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