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Articles 991 - 994 of 994
Full-Text Articles in Plant Sciences
Inheritance Studies In Kanred X Martin And In G-149 X Ridit, Myron T. Hansen
Inheritance Studies In Kanred X Martin And In G-149 X Ridit, Myron T. Hansen
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The studies here reported involve two crosses, one of which was between a pure line of Kanred and a pure line of Martin from a bunt resistant selection. The other was between a pure line of G-149, a rust-resistant segregate from Sevier x Dicklow, and a pure line of Ridit. These were both economic breeding projects made in an effort to combine the good commercial qualities of Kanred and G-149 with the high bunt resistance of Martin and Ridit, respectively.
These crosses also furnished, as a by-product, some good genetic data, as in each cross one parent was fully awned …
Hybridization Of Wheat, Floyd M. Beach
Hybridization Of Wheat, Floyd M. Beach
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The purpose of this paper is to set forth the purpose of wheat hybridization. To do this properly it is necessary to know the history of hybridization of plants. Also to know some of the workers in this field and the hybrids produced by them. In the work at the Experiment Stations the various experimenters have discovered many interesting facts which it is necessary to know and understand. To thoroughly comprehend the work it is also necessary to do the actual processes of the work and to carry the hybrid through several generations and eventually to the goal for which …
Mendelian Inheritance In Wheat Hybrids, J. Leo Mortensen
Mendelian Inheritance In Wheat Hybrids, J. Leo Mortensen
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Until the beginning of the present centry the general opinion was that Egypt and Mesopotamia were the earliest homes of cultivated plants. Recent translations of the old Chinese records, however, reveal the fact that many of our cultivated plants were grown by the ancient peoples of China prior to the time of the Egyptians.
Dettweiler (11) (1914) writes: "Today it is admitted--except by a few--that the original home of the primitive European population, the Indo-Germans, is not Asia but northern Europe, that they developed their culture there in the late stone age, and that they then dispersed in their wanderings …
A Study Of The Forage Plants Of South Dakota With Their Fungous And Insect Enemies, David Griffiths
A Study Of The Forage Plants Of South Dakota With Their Fungous And Insect Enemies, David Griffiths
Electronic Theses and Dissertations
The main object of this study being a better acquaintance with fungous parasites, the work on the host plants has been considerably abridged in order that the discussion might be shortened. It was the plan at first to include in this paper a carefully written description of each of the principal forage plants of the state. The futility of such a plan, however, soon became apparent, and it was accordingly decided to omit the description and include simply Distribution,
Habitat, Value as Forage, and the Fungous Parasites of each host. There are, therefore, several of our best forage plants omitted …