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Full-Text Articles in Life Sciences
The Influence Of Petroleum Mulch On The Germination And Yield Of Tomatoes, Clarence Frank Williams
The Influence Of Petroleum Mulch On The Germination And Yield Of Tomatoes, Clarence Frank Williams
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The effects of petroleum mulches on the emergence and yield of tomatoes were studied at the Farmington Field Station, Greenville Field Station, North Logan, and the greenhouse. The mulches were applied as surface overlays above the seed or incorporating before planting.
Seedling emergence and yields were measured. Data recorded from trials conducted under cool weather conditions indicated that petroleum mulch overlays can be effective in increasing seedling emergence.
The increased seedling emergence with petroleum mulch is due to increased soil temperature, less moisture loss from the surface, and a minimum of soil crust formation.
Effect Of Gibberellic Acid And Chilling On Nucleic Acids During Germination Of Dormant Peach Seed, Yuh-Nan Lin
Effect Of Gibberellic Acid And Chilling On Nucleic Acids During Germination Of Dormant Peach Seed, Yuh-Nan Lin
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
A study of nucleic acid changes influenced by gibberellic acid and chilling treatments in peach seed was performed in an attempt to reach a better understanding of the mechanism involved in breaking seed dormancy.
Gibberellic acid and the chilling treatment increased the RNA content. These two treatments which break dormancy also increased RNA, suggesting a similar mechanism involving RNA. Chilled seeds contained more RNA than did the gibberellic acid treated seeds.
DNA content remained unchanged regardless of treatment.
Dry seed had a greater ribonuclease activity than with soaked seeds. Enzyme changes did not correlate well with the RNA content in …