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
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Creator |
RAMULU, G
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Contributor |
RADHIKA, K
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Subject |
EFFECT, POLLEN, BLEND, POLLINATION, METHODS, YIELD, SEED, QUALITY, SUNFLOWER, GENOTYPES
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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. |
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Date |
2016-08-17T13:53:59Z
2016-08-17T13:53:59Z 2006 |
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Type |
Thesis
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Identifier |
http://krishikosh.egranth.ac.in/handle/1/72760
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Language |
en
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Relation |
D7889;
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Format |
application/pdf
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Publisher |
ACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY, RAJENDRANAGAR, HYDERABAD
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