Pollen viability and stigma receptivity in sunflower (Helianthus annuus)
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Authors
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CH. S. LAKSHMI
Department of Seed Science and Technology, ANGRAU, Rajendranagar, Hyderabad 500 030
Author
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K. KANAKA DURGA
Department of Seed Science and Technology, ANGRAU, Rajendranagar, Hyderabad 500 030
Author
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R. ANKAIAH
Department of Seed Science and Technology, ANGRAU, Rajendranagar, Hyderabad 500 030
Author
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A.R.G. RANGANATHA
Department of Seed Science and Technology, ANGRAU, Rajendranagar, Hyderabad 500 030
Author
Keywords:
Pollen viability, sunflower, stigma, seed productionAbstract
Pollen viability is a critical factor determining the success of sunflower seed production. Fresh pollen-grains without blending of filler material recorded maximum viability. The pollen-grains stored in refrigerator recorded higher viability (%) compared to those stored in moist earthen pots. This may be attributed to low temperature of 4°C and 75% RH prevailing in refrigerator. Storage of pollen grains in earthen pots surrounded with moist sand was adjudged as the next best treatment since their viability could be maintained through in a lower scale up to fifth day. Irrespective of filler material and storage methods, viability (%) and stigma receptivity decreased with increased age of pollen-grains.
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References
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