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Based on these clear definitions, Sachs (1868) described the life cycles of green algae and land plants with reference to the European birthwort (Aristolochia clematitis). Using flowers of this species, he analyzed the processes of pollen growth, fertilization, and the subsequent development of embryos within seeds.
- A Rich History
- Old World References
- Earliest Hydroponic Research
- And Then, All Was Quiet
Many written histories of hydroponic plant cultivation methods mention the ancient Hanging Gardens of Babylon, the first written record of which dates to about 290 BC. Penned by Berossus, a Babylonian writer, priest, and astronomer, we only know of Berossus’ writings through quotes by later authors. Five primary authors, including Berossus, are res...
Another oft-mentioned comparison to modern hydroponics in the Old World are the “floating gardens” built by the Aztecs in the 14th century AD. Arriving in the Valley of Mexico, the Aztec people found a landlocked swamp with five large lakes surrounded by volcanic mountains. For some reason, they chose to settle in swampland surrounding Lake Texcoco...
Some of the earliest recorded research into the actual reasoning behind the growth of plants, published posthumously in 1648, was written by a Flemish chemist known as Jan Baptist van Helmont (1579-1644). In fact, authorities detained van Helmont in 1634 during the Spanish Inquisition for the “crime” of studying plants and other sciences and senten...
Over the next few decades, little effort towards developing commercial applications continued to leave the promise of water culture unfulfilled. William F. Gericke, the man who actually coined the term “hydroponics”, in his book The Complete Guide to Soilless Gardening(1940), laments the fact that “… after 1868, the conditions were as auspicious fo...
May 17, 2018 · Photographs of Julius von Sachs. Shown to the left is a portrait and signature of Sachs at the age of ca. 45 years. The inscription reads "Freiburg, August 22, 1868, Prof. Dr. J. Sachs" (adapted ...
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Jul 6, 2015 · For instance, Sachs analyzed the association of the root with soil particles in crop plants such as bread wheat (Triticum aestivum L.) (Fig. 5A), and discovered that the root hairs are largely responsible for the uptake of water and dissolved mineral salts (Fig. 5B). Together with Sachs' well-known hydroculture-experiments, these studies ...
- Ulrich Kutschera
- 10.1080/15592324.2015.1062958
- 2015
- 2015/09
Jan 1, 2011 · Sachs summed up the early work on photosynthesis (but said nothing about the role of light) (1890 translation of Sachs , p. 491): “The discoveries of Priestley, Ingen-Housz and Senebier, and the quantitative determinations of de Saussure in the years between 1774 and 1804, supplied the proof that the green parts of plants, and the leaves ...
- Jane F. Hill
- janefhill@verizon.net
- 2012
Sep 1, 2015 · Metrics. In October 1865, Julius Sachs published a monograph entitled Experimental Physiology of Plants, and so initiated a new, quantitative branch of basic and applied botany. In our current ...
Oct 2, 2019 · In the 1860s, Sachs tested adding a variety of nutrients to plants growing in water. He was trying to determine what plants need to live. It was early, early efforts on modern-day hydroponics. In 1864, Sachs determined that blue light is the most important color for inducing phototropism in plants. Plants are generally blind to other colors ...
