Beans are highly nutritious , containing protein , iron , potassium , magnesium , manganese and vitamins A , C and K. Knowing the social system of bean seeds enables growers to understand the grandness of regular , even watering and the growing process . Bean seeds are bewitching in their simplicity . Despite their simple structure , bean seeded player produce immense quantities of leafage and fruit .

bean are highly alimental , containing protein , iron , potassium , atomic number 12 , atomic number 25 and vitamins A , C and K. Knowing the structure of bean seeds enable growers to read the grandness of regular , even watering and the growing process . Bean seeds are fascinating in their simplicity . Despite theirsimple anatomical structure , bean seed produce vast quantities of foliation and fruit .

Testa

The testa is the hard , protective outer level of the bean seed . Although the testa is thin , it is very bad . The testa varies in color , depending on the variety of bean plant germ . There is a very humble hole in the seed coat , known as the micropyle , which allows water to enter and begin the germination process .

Cotyledons

cotyledon are the two halves of the bean cum , covered and protected by the seed coat . The cotyledons provide the developing plant with nutrient and help support it until the source begin to maturate and are able to engulf sufficient nutrients to sustain the plant . As the nutrients stored in the cotyledons are used by the growing plant , they shrivel and dry out out .

Radicle

The radicle is one one-half of the embryo , which is situated between the cotyledons , inside the seed coat . The radicle is the first solution produced by the come . Once urine reaches the embryo and begin the germination process , the radicle pushes down through the micropyle and into the soil . The radicle continues to grow until a amply - fledged root system has developed and is able to sustain the grow industrial plant .

Plumule

The plumule is the second half of the embryo , and get the first leaves of the industrial plant . After the radicle break away through the micropyle and start its filiation into the soil , the plumule swells , pushing up through the testa and territory until it reaches sunlight .

Hilum

The hilum is situated on the seed coat , at the indented part of the bean seminal fluid . The hilum is a scar where the bean seed was previously attach to the pod . The micropyle is situated in the hilum .

Hypocotyl

The hypocotyl is part of the stem , between the seed leaf and the foot . The hypocotyl follow the plumule and cotyledons up through the soil toward sunlight .

Eicotyl

The epicotyl is the part of the stem above the seed leaf and below the plumule . As the bean seedling develops , the epicotyl grows and elongates in a process have sex as phototropism , which think of arise toward the light .

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