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Zinnia plant in bloom aboard an Earth orbiting space station. The growth of plants in outer space has elicited much scientific interest. [1] In the late 20th and early 21st century, plants were often taken into space in low Earth orbit to be grown in a weightless but pressurized controlled environment, sometimes called space gardens. [1]
The study of plant response in space environments is another subject of astrobotany research. In space, plants encounter unique environmental stressors not found on Earth including microgravity, ionizing radiation, and oxidative stress. [23] Experiments have shown that these stressors cause genetic alterations in plant metabolism pathways.
579 Natural history of microorganisms, fungi, algae; 580 Plants. 580 Plants; 581 Specific topics in natural history of plants; 582 Plants noted for specific vegetative characteristics and flowers; 583 Magnoliopsida (Dicotyledones) 584 Liliopsida (Monocotyledones) 585 Pinophyta (Gymnosperms) 586 Cryptogamia (Seedless plants) 587 Pteridophyta ...
However, plants experience normal growth given that directional light is provided. [10] Normal growth is classified as opposite root and shoot growth direction. This being said, many plants grown in a space flight environment have been significantly smaller than those grown on Earth's surface and grew at a slower rate. [10]
A horticulture student tending to plants in a garden in Lawrenceville, Georgia, March 2015 The Rock Garden, Leonardslee Gardens. Horticulture is the art and science of growing fruits, vegetables, flowers, trees, shrubs and ornamental plants.
Cabbage growing in a Veggie unit [1]. The Vegetable Production System (Veggie) is a plant growth system developed and used by NASA in space environments. The purpose of Veggie is to provide a self-sufficient and sustainable food source for astronauts as well as a means of recreation and relaxation through therapeutic gardening. [2]
The history of botany examines the human effort to understand life on Earth by tracing the historical development of the discipline of botany—that part of natural science dealing with organisms traditionally treated as plants. Rudimentary botanical science began with empirically based plant lore passed from generation to generation in the ...
Plant domestication is seen as the birth of agriculture. However, it is arguably proceeded by a very long history of gardening wild plants. While the 12,000 year-old date is the commonly accepted timeline describing plant domestication, there is now evidence from the Ohalo II hunter-gatherer site showing earlier signs of disturbing the soil and cultivation of pre-domesticated crop species. [8]