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EFFECT OF POLLEN BLEND AND POLLINATION METHODS ON YIELD AND SEED QUALITY IN SUNFLOWER (Helianthus annuus L.) GENOTYPES

KrishiKosh

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Title EFFECT OF POLLEN BLEND AND POLLINATION METHODS ON YIELD AND SEED QUALITY IN SUNFLOWER (Helianthus annuus L.) GENOTYPES
 
Creator RAMULU, G
 
Contributor RADHIKA, K
 
Subject EFFECT, POLLEN, BLEND, POLLINATION, METHODS, YIELD, SEED, QUALITY, SUNFLOWER, GENOTYPES
 
Description The present study entitled “Effect of pollen blend and pollination
methods on yield and seed quality in sunflower (Helianthus annuus L.)
genotypes” was conducted to asses the influence of various pollination
methods on seed set, test weight, yield, oil content and quality of seed in
sunflower. The seed material for the study comprising eight genotypes viz. two
hybrids, two populations, four inbreds (two self compatible and two self
incompatible lines) was obtained from the Directorate of Oil Seed Research,
Rajendranagar, Hyderabad. The field experiment was conducted at
Department of Seed Science and Technology, College of Agriculture,
Rajendranagar, Hyderabad, during Rabi 2004-05. The genotypes were
evaluated in a replicated trial by imposing five treatments of pollination
methods.
The analysis of variance revealed that significant differences existed
among the five pollination methods (Selfing, Supplimental hand pollination,
Simple blend, Mixed blend and Open pollination), genotypes and there
interactions.
Among the pollination methods, pollination with mixed blend of pollen
enhanced seed set and also recorded higher oil content in the genotypes. The
higher seed set reflected through mixed blend was attributed to effective
transfer of viable pollen to the receptive stigma there by overcoming self
incompatibility by intra allelic interaction.
The test weight which is one of the important yield components was
directly influenced by number of filled seeds per capitulum. Though less
number of seeds was recorded in selfing, the test weight increased in bagging
due to less competition among the sink and the availability of more nutrient
supply per fertile achene.
The pollination methods had a significant influence on oil content of
genotypes. Maximum oil content was recorded in mixed blend followed by
simple blend, open pollination, supplemental hand pollination and selfing.
The germination, seedling vigour index, field emergence studies
indicated the superiority of mixed blend pollination over other methods.
The seed yield had significant positive association with total number of
seeds, oil content, seed set, germination and other seed quality parameters.
From the present study, it can be concluded that in future the breeders can
concentrate on the development of synthetics, use of varietal mixtures and
blends, which can yield on par with hybrids.
 
Date 2016-08-17T13:53:59Z
2016-08-17T13:53:59Z
2006
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/72760
 
Language en
 
Relation D7889;
 
Format application/pdf
 
Publisher ACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY, RAJENDRANAGAR, HYDERABAD