Color Pictures of Mineral Deficiencies in Pears

from

The Diagnosis of Mineral Deficiencies in Plants by Visual Symptoms
by Thomas Wallace, M.C., D.Sc., A.I.C.

Published by His Majesty's Stationary Office — 1943

— Crown Copyright Reserved —


PEAR TREES — from the 1951 edition

Pear Leaves - Nitrogen deficiency 
288. Pear Leaves

Nitrogen deficiency

High yellow, red and purple tints.

 
Pear Leaves - Magnesium deficiency 289. Pear Leaves

Magnesium deficiency

Central intervenal necrosis.

 
Pear Folliage - Potassium deficiency 290. Pear Folliage

Potassium deficiency

Leaves dark brown marginal scorching.

 
Pear Folliage and Fruits - Iron deficiency 291. Pear Folliage and Fruits

Iron deficiency

Leaves severly chlorotic and brown marginal areas; fruits ground color, pale and highly flushed. (cf. Plate No. 292, manganese deficiency)

 
Pear Leaves - Manganese deficiency 292. Pear Leaves

Manganese deficiency

Somewhat faint intervenal chlorosis beginning near margins. (cf. Plate No. 291, iron deficiency)

 
 

Index

  • Flax
  • Hops
  • Kale
  • Lettuce
  • Maize
  • Mangold
  • Oats
  • Onion
  • Parsnip
  • Pear
  • Peas
  • Plum
  • Potatoes
  • Radish
  • Rape
  • Rye
  • Spinach
  • Sugar Beet
  • Swede
  • Table Beets      
  • Tomatoes
  • Turnips
  • Wheat
  • Top of Page

    The Diagnosis of Mineral Deficiencies in Plants by Visual Symptoms

    by Thomas Wallace, M.C., D.Sc., A.I.C.

    Color Pictures of Mineral Defeciencies in Plants – 1943


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