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RHS 3102 > Calcium and magnesium > Flashcards

Calcium and magnesium Flashcards

1
Q

Calcium

Mobility

A

Low mobility, younger tissue affected first. Eg. New foliage and developing fruits.

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2
Q

Calcium

Deficiency symptoms

A

Often on new foliage and fruits leading to ares of necrosis eg. Blossom end rot on tomatoes.

Meristematic tissue affected eg. Tulip Topple

Downward curling leaves.

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3
Q

Correction calcium deficiency.

A

Fertiliser required

Water in soluble calcium source such as calcium nitrate.

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4
Q

Magnesium

Mobility

A

Mobile

Older leaves affected first.

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5
Q

Magnesium

Sign of deficiency

A

Interveinal chlorosis
Necrosis of chlorotic tissue
Premature leaf fall
Purple /orange flouring in brassicas.

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6
Q

Treating magnesium deficiency

A

Epsom salt as foliage feed in summer.

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7
Q

Magnesium

Rôle in plant

A

Major component of chlorophyll.

Movement of phosphorus around plant.

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8
Q

Calcium

Rôle in plant

A

Major constituent of plant cells as calcium pectate

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RHS 3102 (21 decks)

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