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Genetic Variation for Seed Phosphorous Content and Its Relationship with Growth, Quality and Yield in Groundnut

KrishiKosh

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Title Genetic Variation for Seed Phosphorous Content and Its Relationship with Growth, Quality and Yield in Groundnut
 
Creator Shweta Kademani
 
Contributor U.V. Mummigatti
 
Subject Crop Physiology
 
Description Phosphorous is the second most important plant nutrient after nitrogen. It
plays an important role in shoot and root development, nodulation, seed formation and
also improves seed quality in groundnut. A large variation in growth, yield and seed
phosphorous content is seen among the different improved cultivars of groundnut.
Hence it is necessary to study the genetic variability for seed phosphorous content in
groundnut mapping population to assess the relationship with seed yield and oil
content. A field experiment was conducted during kharif, 2010 following RCBD with
268 RILs and their two parents (TAG 24 and GPBD-4) at College of Agriculture,
University UAS, Dharwad. The observations were recorded on seed phosphorous
content, yield and its component traits. Seed phosphorous content and pod yield per
plant exhibited high GCV and PCV. High heritability was recorded for seed
phosphorous content, oil content, SPAD at 60 DAS and pod yield. The association
analysis revealed that oil content, seed phosphorous content, test weight and shelling
percentage had positive correlation with pod yield both at phenotypic and genotypic
level. Whereas, seed phosphorous content had negative association with seed oil
content and test weight, but had positive correlation with shelling percentage.
Seedling vigour index (SVI) had positive correlation with seed phosphorous content
and pod yield. Similarly, SVI and test weight had also positive correlation with total
dry mater.
Path coefficient analysis revealed that the parameters like seed phosphorous
content, oil content and test weight had direct positive effect on pod yield. Hence, P
nutrition appears to be important in groundnut. Based on the present investigation
RILs no.169, 229 and 250 had higher seed phosphorous content with comparable
yield and seed quality character with better parent GPBD 4. Hence, these RILs could
be utilised for further crop improvement.
 
Date 2016-11-14T13:05:24Z
2016-11-14T13:05:24Z
2011
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/85396
 
Format application/pdf
 
Publisher UAS, Dharwad