Overview Summary About Soy

Soybean (sometimes plus "nut") is one of leguminous plants and have been cultivated since 3,500 years ago in East Asia. Soybean is the main source of vegetable protein and vegetable oil world. Soybeans grown in paddy fields and dry land (fields). Planting is usually done at the end of the rainy season, after the rice harvest.

Soy beans peeled

Soy, especially soy white from subtropical regions, is also a short-day plant with a critical time an average of 13 hours. He will soon be ready to bloom during flowering when the length is less than 13 hours a day.

Seed Two pieces of soy beans, wrapped in bean skin and yellow, black, green, brown. Soybean seeds are generally round shape oval but some are round or slightly flattened round.

Sprout Dry soybean seeds will germinate when the get enough water, classified epigeous, namely seed pieces appear above ground. Hypocotyl color, which is part of the stem sprouts under kepaing, purple or green color associated with flowers. Soybean sprouts can be used as vegetables (bean sprouts).

Rooting Soybean plants have roots that form the saddle branch roots that grow sideways (horizontal) is not far from the surface. If soil moisture falls, the roots will grow deeper into the Facebook to absorb nutrients and water. In addition to functioning as a place rests its plant and equipment of water and nutrient transporters, the roots of soybean plants is also the place-nodule root nodule formation. Nodule in the form of colonies of nitrogen fixing bacteria. Bradyrhizobium japonicum is a mutual symbiosis with soybean. On land that already contains these bacteria, root nodules began to form about 15 - 20 days after planting. Nodule bacteria to bind nitrogen from the air in the form of N2 gas which can then be used by soybean after oxidized to nitrate (NO3).

Stem Soybean trunked with 30-100 cm tall. Stem can form a 3-6 branches, but if the distance between plants meeting, the branch is reduced, or not branched at all. Plants short to medium, the tip of the stem is almost as large as the center of the stem, leaves as big as the top center of the leaf stem. Type characterized not limited flowering gradually from bottom to top and plants continue to grow. Plants berpostur moderate to high, the tip of the stem smaller than the middle. Half-limited type has characteristics between the two other types.

Soybean plants after be harvested

Fruit Soybean flowers including perfect flower that is every flower has a male tool and female tool. Pollination occurs when the crown of flowers still closed so it is likely to interbreed naturally very small. Interest lies in the joints of the stem, purple or white.

Fruit Soybean pod-shaped fruit. Soybean pod hairy and brownish yellow or gray. During the process of ripening fruit, pods that are green at first will turn into black.

Leaf Single leaf blade has a short stalk and leaves of all three have a rather long stalks. Each oval-shaped leaves, thin, and green. Downy leaf surface (trichome) on both sides. Bud or flower stalks will emerge on the armpit compound leaves.

bibliography : wikipedia