Life Sciences Commons^™

Economic Viability Of Weed Management Strategies In High-Tunnel Tomato, Gracie Morrison

Crop, Soil and Environmental Sciences Undergraduate Honors Theses

Cost-effective weed suppression is an important consideration for tomato growers. Growers often choose methods which minimize hand labor, as hand weeding can be prohibitively expensive. This project determined economic viability of high tunnel tomatoes treated with several methods of weed control, both organic and chemical. These methods included: 2-week hand weeding, 1-week hand weeding, preemergent, straw, landscape fabric, and untreated weedy control plots. These treatments were applied to randomized blocks in a high-tunnel. Weeding, planting, and harvest were all timed to determine labor and material costs of weed management strategy implementation. After harvest, marketable yield was weighed to determine revenue. …

Long-Term Changes In Soil Surface Properties As Affected By Management Practices In A Wheat-Soybean, Double-Crop System, Machaela Morrison

Crop, Soil and Environmental Sciences Undergraduate Honors Theses

Long-term agricultural sustainability and productivity are controlled by the integrative effects of different management practices on the soil. Many Arkansas producers use the double-crop system to grow soybeans [Glycine max (L.) Merr] and wheat (Triticum aestivum L.). Studying combinations of different, non-traditional, alternative agricultural techniques may help producers better understand the long-term implications of various management practice options on sustainability and productivity. The objective of this study was to evaluate the effects of agricultural management practices, including residue level, tillage, irrigation, and burning, and soil depth on the change in various soil properties from 2010 to 2020 in …

Comparison Of Morphological Traits In Cowpea Pod Length, Seed Number Per Pod, Seed Weight, Seed Color And Seed Density In Usda Germplasm Accessions And Arkansas Breeding Lines, Sora Imamura

Crop, Soil and Environmental Sciences Undergraduate Honors Theses

The objective of the study was to compare and correlate the Arkansas cowpea breeding lines to the USDA cowpea germplasm accessions on the following morphological traits: seed color, pod length, number of seeds per pod, 100 seed weight, and seed density. The seed density is defined as the weight of seed in gram per centimeter of pod length. Three hundred seventeen cowpea genotypes were used in this experiment. Out of the 317, 285 germplasm accessions were from the USDA GRIN and 32 lines were from the Arkansas breeding program.

T-test between Arkansas breeding lines and USDA germplasm accessions were done …