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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.
An example of this is vegetable production on the International Space Station in Earth orbit. [10] By the year 2010, 20 plant growth experiments had been conducted aboard the International Space Station. [1] Several experiments have been focused on how plant growth and distribution compares in micro-gravity, space conditions versus Earth ...
The existence of a space farm would aid the creation of a sustainable environment, as plants can be used to recycle wastewater, generate oxygen, continuously purify the air, and recycle feces on the space station or spaceship. [2] Just 10 m 2 of crops produces 25% of the daily requirements of 1 person, or about 180-210 grams of oxygen. [3]
A Veggie module weighs less than 8 kg (18 lb) and uses 90 watts. [7] It consists of three parts: a lighting system, a bellows enclosure, and a reservoir. [8] The lighting system regulates the amount and intensity of light plants receive, the bellows enclosure keeps the environment inside the unit separate from its surroundings, and the reservoir connects to plant pillows where the seeds grow.
The entire gametophyte generation, with the sole exception of pollen grains (microgametophytes), is contained within the sporophyte. The life cycle of a dioecious flowering plant (angiosperm), the willow, has been outlined in some detail in an earlier section (A complex life cycle). The life cycle of a gymnosperm is similar.
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1 March 1982 Orbital Space Station: Soyuz T-5, Salyut 7: First species of plant to flower in space. [63] Arabidopsis thaliana Valentin Lebedev. USSR 1 July 1982 Trans-Neptunian region: Pioneer 10: First to travel past the orbit of Neptune, the furthest major planet from the Sun. USA 13 June 1983 Venus: Vega 1: First helium balloon atmospheric ...
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