Breeding Methods for Outcrossing Plant Species: I. History of Corn Breeding and Open Pollinated PopulationsThomas J. Orton Ph.D.Horticultural Plant Breeding
Henry A. Wallace, the United States Secretary of Agriculture, traced the history of maize or corn breeding and pointed out that up to 1890 the farmers of the corn-belt had not been superior to their Indian predecessors as corn breeders, the chief improvement having been in substituting a ...
history, genetics and breeding of supersweet (shrunken2) sweet cornorigin of Supersweet Sweet Cornshrunken2 (sh2) allele, application in sweet corn ... WF Tracy 被引量: 53发表: 1997年 The History of Corn A general discussion is presented of the origin of maize and of its relationships wi...
in evolution and genetics, respectively, revealed the biological basis of the selective breeding that is agriculture. Cultivation approaches could therefore become more directed. For example, in the early twentieth century, George Shull, at the Station for Experimental Evolution in Cold Spring Harbor, ...
Exploring the potential of life‐history key innovation: brook breeding in the radiation of the Malagasy treefrog genus Boophis The treefrog genus Boophis is one of the most species-rich endemic amphibian groups of Madagascar. It consists of species specialized to breeding in brooks... M Vences,F...
Although these shortcomings were clearly recognized, scientific research into heritable traits was not very widespread and usually confined to breeding two different species together and looking at their offspring. As the offspring of such breeding experiments is usually infertile, thegeneticinformation obtai...
What has changed, due to modern plant breeding, is the corn’s size, consistency, seed performance, yield, the number of ears per stalk and the position of the ear and the leaves on the stalk. Currently, a plant has only one ear located about waist high (the height of a combined blad...
The project provides the corn industry, early breeding lines by using germplasm enhancement to improve and adapt useful exotic germplasm. Throughout the world, approximately 50,000 accessions of corn exist in germplasm banks and, until recently, many had never been evaluated for useful traits. ...
of them is exempt-must change before the coming rush of facts.” The way genetics impacted on plant breeding turned out to depend upon the mating system of the crop species, as might have been anticipated from Darwin’s book of 1876 onThe Effects of Cross and Self Fertilisation in the ...
Soybean, Glycine max (L.) Merr., has been grown as a forage and as an important protein and oil crop for thousands of years. Domestication, breeding improvements and enhanced cropping systems have made soybeans the most cultivated and utilized oilseed cr