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STUDY ON THE MICRONUTRIENT DEFICIENCIES OF COTTON (Gossypium sp.) IN SOLUTION CULTURE

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Title STUDY ON THE MICRONUTRIENT DEFICIENCIES OF COTTON (Gossypium sp.) IN SOLUTION CULTURE
 
Creator RADHA DEVI, G
 
Contributor NARAYANAN, A
 
Subject diseases, biological phenomena, enzymes, planting equipment, vegetables, proteins, developmental stages, area, necrosis, application methods
 
Description Deficiency symptoms of micro-nutrients were developed
in cotton grown in solution culture. Fe deficiency showed
severe stunting in growth with appearance of chronic chlorosis
in terminal leaves. Interveinal chlorosis on young
leaves followed by necrosis were the symptoms of Mn deficiency.
Copper deficiency resulted in bleached leaves with
the green veins followed by scorching and necrosis. Zn
deficiency resulted in dark green or bluish green leaves
with necrotic spots. Reduced growth, death of terminal bud
with cupped leaves were shown by B deficiency. Mo deficiency
exhibited yeneral paleness and cuppin~ of leaves, which
extended towa~ds the upper or lower surface of the leaf. Plant growth was severely affected due to the deficiency
of Fe, Cu, Zn and B. The deficiencies of Mn and Mo
affected the plant growth marginally. Total chlorophyll
content was severely reduced by about 78% due to Fe deficiency.
Fe and B deficiencies prod~ced maximum amount of
proline compared to control. Fe and Mo deficiencies significantly
decreased nitrate reductase activity.
Net carbon assimilation increased due to Fe deficiency.
Leaf area~ ratio and s:tem weight rati-e citl.creased due to Fe
and Mn def~ciencies. Root weight ratio and root/stern dry
UJ.)
weight ratio decreased due to ~Zn and Mo deficiencies. No
si~nificant increase was noticed in any parameter in er a-aa
B deficienc~.
The individual mineral element when deficient had
reduced its own concentration. Deficiencies of Fe and Cu
have reduced drastically the content of different mineral
elements. In general the content of different parts of
cotton plants.was found directly proportional to the amount
of growth put forth under different nutrient deficiencies.
Fe use efficiency was high in Fe deficient treatment.
The MnUE, FeUE, PUE, CaUE and MgUE were high under -Mn
treatment. SUE and KUE were also very high. CuUE, FeUE,
ZnUE and BUE were very high in -cu treatment. In Zn deficiency
ZnUE and FeUE were high. Und.er B deficiency the BUE,
FeUE and ZnUE wer~ high. MoUE, FeUE and CuUE were high in
Mo deficiency
 
Date 2017-01-20T10:06:34Z
2017-01-20T10:06:34Z
1991
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/97243
 
Language en
 
Relation D1991;
 
Format application/pdf
 
Publisher ANDHRA PRADESH AGRICULTURAL UNIVERSITY RAJENDRANAGAR, HYDERABAD