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ASSESSMENT AND ENHANCEMENT OF SEED VIGOUR IN COTTON [Gossypium hirsutum (L.)]

KrishiKosh

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Title ASSESSMENT AND ENHANCEMENT OF SEED VIGOUR IN COTTON [Gossypium hirsutum (L.)]
 
Creator GIRISH KADDI
 
Contributor Shiv Kumar Yadav
 
Subject sowing, germinability, cotton, developmental stages, land resources, seed treatment, storage, seed vigour, drying, polymers
 
Description t-8156
Studies on various vigour parameters including accelerated ageing and electrical
conductivity of seed leachate in relation to field emergence and storability were
conducted in cotton during kharif 2008. The material for the study consisted two varieties
of cotton viz. H-1226 and H-1117. Both the varieties were subjected to laboratory as well
as field test to assess the initial vigour. Magnetic energy treatment for seed quality
enhancement for cotton by exposing seeds to different energy levels and period of
exposure was standardized. In addition, other seed treatments were tried to enhance the
vigour parameters. The treated seeds were evaluated for first count, germination (%),
seedling length, seedling dry weight, vigour index I and II, field emergence, field
emergence index and speed of emergence. The treated seeds were stored for six months
under ambient conditions to study the effect of seed enhancement treatments on
storability.
ABSTRACT
The above studies revealed that the H-1226 was having relatively higher vigour
compare to H-1117. The standardization of magnetic energy treatment for seed quality
enhancement for cotton revealed that 2500G for 1 hr exposure treatment gave higher root
length and seedling length. Among all the seed enhancement treatments, the best
treatments were royalflo @ 5ml/kg and thiram @ 2gm/kg + imidachloprid @ 7.5ml/kg as
they significantly increased the first count, germination (%), vigour index I, field
emergence, field emergence index and speed of emergence compared to control. They
also maintained higher first count, germination (%), vigour index I, and vigour index II
after 6 months of storage. The hydro priming treatment significantly increased seedling
dry weight and vigour index II and priming treatment with ceolomic fluid + thiram +
imidachloprid revealed higher first count. Among different polymer treatments, polymer
along with thiram or imidachloprid have shown good results than polymer alone.
Electrical conductivity showed significant negative correlation with most of the vigour
parameters studied. Hence it is suggested that seeds treated either with royal flo or thiram
+ imidachloprid can be used for enhancing the planting value in cotton.
dikl
 
Date 2016-12-23T09:47:06Z
2016-12-23T09:47:06Z
2009
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/92335
 
Format application/pdf
 
Publisher DIVISION OF SEED SCIENCE AND TECHNOLOGY