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Full-Text Articles in Apiculture
Factors Impacting Germination, Emergence, And Establishment Of Direct Seeded And Transplanted Hemp (Cannabis Sativa L.), Paul Cockson Dr.
Factors Impacting Germination, Emergence, And Establishment Of Direct Seeded And Transplanted Hemp (Cannabis Sativa L.), Paul Cockson Dr.
Theses and Dissertations--Plant and Soil Sciences
Industrial hemp (IH) establishment has many challenges including: poor emergence, low stand establishment, and variable plant development in direct seeded hemp. In floral hemp production, quality transplant production is a challenge with seedlings often becoming root bound and etiolated. In both direct seeded and transplant hemp, the relationship between root vigor and vegetative growth has not been studied and may prove insightful for managing emergence and establishment challenges. The goals of this study were three-fold: 1) to measure and describe root system architecture (RSA) and root phenotypes observed in selected IH cultivars especially in regard to identifying agronomically important RSA …
Species-Specific Microsymbiont Discrimination Mediated By A Medicago Receptor Kinase, Xiaocheng Yu
Species-Specific Microsymbiont Discrimination Mediated By A Medicago Receptor Kinase, Xiaocheng Yu
Theses and Dissertations--Plant and Soil Sciences
Legumes form a mutualistic partnership with nitrogen-fixing bacteria to meet their nitrogen requirements. This collaboration leads to the development of root nodules, offering an ideal environment for the bacteria to convert atmospheric nitrogen into ammonia. A salient aspect of this symbiotic relationship is host range specificity, such that nodulation capacity and nitrogen fixation efficiency differ significantly between different host-bacterial combinations. Understanding the genetic basis of this specificity could pave the way for strategies to overcome the host range barrier. Sinorhizobium meliloti and Sinorhizobium medicae are two closely related species that display differential symbiotic behaviors with legume plants of the Medicago …
Quantifying Crop Phenology For Food Sustainability Under Climate Change: Integration Of Remote Sensing, Machine Learning, And Ecosystem Modeling, Yanjun Yang
Theses and Dissertations--Plant and Soil Sciences
Climate change is projected to continue and accelerate significantly in the future if global greenhouse gas emissions are not curbed. Previous studies have shown that crop growth and production in agroecosystems are primarily determined by the weather conditions over the growing season. Crop phenology represents one of the most critical indicators in determining crop yield and adjusting the adaptation of crops to climate change. It provides essential information for monitoring and modeling crop growth dynamics and productivity. Therefore, understanding and quantifying the impacts of climate change on crop phenology and then agricultural production is crucial to formulate feasible climatic adaptation …