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Full-Text Articles in Life Sciences
Bulletin No. 128 - Blooming Periods And Yields Of Fruit In Relation To Minimum Temperatures, A. B. Ballantyne
Bulletin No. 128 - Blooming Periods And Yields Of Fruit In Relation To Minimum Temperatures, A. B. Ballantyne
UAES Bulletins
As noted In Bulletin 124, the Southern Utah Experiment Farm is located in Washington Field, southeast of St. George. This tract of land is comparatively low and flat and bounded on three sides by hills. On the front or north side it extends to the Rio Virgin river, which enters and leaves the valley through small canyons. This entire area has a very poor water and air drainage. Frosts occur here much more severely and much later than on the surrounding bench land.
Bulletin No. 124 - Fruit Variety Tests On The Southern Utah Experiment Farm, A. B. Ballantyne
Bulletin No. 124 - Fruit Variety Tests On The Southern Utah Experiment Farm, A. B. Ballantyne
UAES Bulletins
Since the material contained in the following report of the variety tests on the Southern Utah Experiment Farm was mainly accumulated under plans outlined before the farm was made part of the Utah Experiment Station, it may be well in this connection to give a brief history of its location, management, and a survey of its situation. It was established by an act of the State Legislature approved March 21, 1899, and the site was chosen the following July by a committee appointed by Governor Heber M. Wells. The area selected consists of forty acres located in the southeastern portion …
Bulletin No. 126 - A Comparison Of First, Second And Third Crop Alfalfa Hay For Milk Production, W. E. Carroll
Bulletin No. 126 - A Comparison Of First, Second And Third Crop Alfalfa Hay For Milk Production, W. E. Carroll
UAES Bulletins
In most sections of the State three crops of alfalfa hay are harvested. There is a widespread opinion among practical feeders in this locality that these crops of hay are not of equal value for feeding purposes. Especially is this true when feeding dairy cows is considered. The belief is so strong in some cases that farmers have said they would exchange three tons of second crop hay for two of first crop when feeding milk cows. Third crop hay is given second choice.
The Inheritance Of Quantitative Characters In Maize, R. A. Emerson, E. M. East
The Inheritance Of Quantitative Characters In Maize, R. A. Emerson, E. M. East
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
The experiments conducted by one of the writers were begun at the Connecticut Agricultural Experiment Station at New Haven in 1906 and removed to the Bussey Institution of Harvard University at Forest Hills, Massachusetts, in 1909. The materials employed in this study consisted principally of crosses of Tom Thumb pop with Black Mexican sweet and of Watson flint with Leaming dent. The number of rows per ear were noted in several other crosses, the parents of which are listed later in this paper. The experiments of the other writer were begun at the Nebraska Agricultural Experiment Station at Lincoln in …
Shorter Articles And Reports: The Simultaneous Modification Of Distinct Mendelian Factors, R. A. Emerson
Shorter Articles And Reports: The Simultaneous Modification Of Distinct Mendelian Factors, R. A. Emerson
Department of Agronomy and Horticulture: Faculty Publications
In another paper on the inheritance of a recurring somatic variation in variegated ears of maize, it was shown that the amount of red color developed in the pericarp of variegated seeds bears a definite relation to the development of color in the progeny of such seeds. The relation is such that the more color there is in the pericarp of the seeds planted the more likely are they to produce plants with wholly self-red ears and correspondingly the less likely to produce plants with variegated ears. Self-red ears thus produced behave just as if they were hybrids between self-red …
The Possible Origin Of Mutations In Somatic Cells, R. A. Emerson
The Possible Origin Of Mutations In Somatic Cells, R. A. Emerson
Department of Agronomy and Horticulture: Faculty Publications
That mutations are accompanied by some change in the germ-plasm is, I take it, indisputable. Have we, however, any reason to suppose that the change takes place within the germ cells? I am not sure, as a matter of fact, that genetists in general regard the gametes as the place of origin of mutations. It is true, however, that experiments in the artificial production of mutations in plants have been limited largely to treatments of the ovaries from about the time of the reduction division to about the time of fertilization. This suggests a belief on the part of investigators …
Shorter Articles And Discussion Simplified Mendelian Formulae, R. A. Emerson
Shorter Articles And Discussion Simplified Mendelian Formulae, R. A. Emerson
Department of Agronomy and Horticulture: Faculty Publications
I was somewhat surprised by 'Morgan's and Castle's suggestions for a simplification of Mendelian formulae. My surprise was not occasioned so much by the forms these suggestions took as by the fact that any pronounced changes were deemed necessary. I had not only employed the usual formula in my own work but had found no difficulty worth mentioning in understanding the formula used by most other workers in Mendelian fields. My experience with students in elementary courses in genetics had not prepared me for the idea that such formula were particularly difficult. Nevertheless I believe in simplifying the formulae if …