Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 5 of 5
Full-Text Articles in Life Sciences
4r Nitrogen And Water Optimization Combinations For Intermountain West Field Crops, Tina Sullivan
4r Nitrogen And Water Optimization Combinations For Intermountain West Field Crops, Tina Sullivan
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The concept of 4R (right source, rate, placement, and timing) management needs little introduction due to the surplus of nutrient studies in the literature for most cultivated crops. However, few studies have looked at these practices in the Intermountain West with nitrogen use, and fewer looked at 4R irrigation management. A survey was conducted to explore the interactions of nitrogen and irrigation management, test sensitivity to supply and price changes of nitrogen and irrigation for Utah and Idaho growers of small grains, corn, and potatoes, and determine the current adoption of precision agriculture options and identify the opportunities to improve. …
Origins Of The Y Genome In Elymus, Pungu Okito
Origins Of The Y Genome In Elymus, Pungu Okito
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The Triticeae tribe DUMORTER in the grass family (Poaceae) includes the most important cereal crops such as wheat, barley, and rye. They are also economically important forage grasses. Elymus is the largest and most complex genus with approximately 150 species occurring worldwide. Asia is an important centre for the origin and diversity of perennial species in the Triticeae tribe, and more than half of the Elymus are known to occur in the Asia. Cytologically, Elymus species have a genomic formula of StH, StP, StY, StStY, StHY, StPY, and StWY. About 40% of Elymus …
Alfalfa Resistance To The Clover Seed Chalcid Bruchophagus Gibbus (Boheman), Gerald Douglas Minion
Alfalfa Resistance To The Clover Seed Chalcid Bruchophagus Gibbus (Boheman), Gerald Douglas Minion
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The destructive nature of the clover seed chalcid has been known since the latter part of the 19th century. This jet-black Hymenoptera, often called the "chalcis-fly," destroys from 10 to 20 percent of the alfalfa seed in Utah each year. Damage as high as 85 percent has been reported.
The Effect Of Captan, Demeton, And 4(2,4-Db) On Alfalfa Growth And Seed Production, Daniel M. Taylor
The Effect Of Captan, Demeton, And 4(2,4-Db) On Alfalfa Growth And Seed Production, Daniel M. Taylor
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The widespread use of chemicals for the control of diseases, insects, and weeds in the production of alfalfa seed has caused concern with regards to what effect these materials may have on the inherent reproductive potential of the plants. It has been reported that captan (N-(trichloromethylthio)-4-cyclohexene-1,2-dicarboximide) has both a morphological and physiological effect on some plants. The action of this chemical with regards to alfalfa reproduction has not been reported. Demeton (0,0-diethyl 0(and S)-2-(ethylthio) ethylphosphorodithioate) is another chemical used in alfalfa seed production for which the direct effects on reproduction have not been studied. Adverse effects have been reported on …
The Yield And Thiamine, Riboflavin, And Niacin Content Of Alfalfa Hay As Related To Fertilizer Treatment Of Soil, Rasik L. Pathak
The Yield And Thiamine, Riboflavin, And Niacin Content Of Alfalfa Hay As Related To Fertilizer Treatment Of Soil, Rasik L. Pathak
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Alfalfa has long been recognised as an outstanding hay plant in terms of both yield and feeding value. It is high in digestible proteins minerals, and vitamins. Because of its long life. it can be economlcally produced. It is of exceptlonal value in maintalning soil fertility by helping to control erosion, by improving the physical condition of the soil, and by accumulating large amounts of nitrogen.