Define the following terms:
$(1)$ Chlorosis
$(2)$ Necrosis
$(1)$ Chlorosis
$(2)$ Necrosis
(N/A) $(1)$ Chlorosis: It is the loss of chlorophyll in leaves,which leads to the yellowing of leaf tissue. It is caused by the deficiency of elements like $N, K, Mg, S, Fe, Mn, Zn$ and $Mo$.
$(2)$ Necrosis: It is the localized death of plant tissues,particularly leaf tissue. It is caused by the deficiency of $Ca, Mg, Cu$ and $K$.
$(2)$ Necrosis: It is the localized death of plant tissues,particularly leaf tissue. It is caused by the deficiency of $Ca, Mg, Cu$ and $K$.
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Similar Questions
All of the following are elements whose deficiency symptoms first appear in the older tissues,except:
Medium
View SolutionHow are the terms 'critical concentration' and 'deficient' different from each other in terms of the concentration of an essential element in plants? Can you find the values of 'critical concentration' and 'deficient' for minerals $Fe$ and $Zn$?
Medium
View SolutionChlorosis occurs when plants are grown in
Easy
View SolutionMatch the mineral deficiency disorders given in Column $I$ with their symptoms given in Column $II$.
Column $I$ (Disorder) Column $II$ (Description) $i$. Chlorosis $a$. Localised death of tissues in leaves $ii$. Necrosis $b$. Premature fall of flowers,fruits and leaves $iii$. Mottling $c$. Yellowing of leaves due to absence of chlorophyll $iv$. Abscission $d$. Appearance of green and non-green patches on leaves
Choose the correct option from below.
| Column $I$ (Disorder) | Column $II$ (Description) |
|---|---|
| $i$. Chlorosis | $a$. Localised death of tissues in leaves |
| $ii$. Necrosis | $b$. Premature fall of flowers,fruits and leaves |
| $iii$. Mottling | $c$. Yellowing of leaves due to absence of chlorophyll |
| $iv$. Abscission | $d$. Appearance of green and non-green patches on leaves |
Choose the correct option from below.
Grey spots of oat are caused by the deficiency of which element?
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