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Published online 1 March 2007
Published in Crop Sci 47:529-534 (2007)
© 2007 Crop Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Genetic Enhancement of Resistance to Alternaria Leaf Blight in Sunflower through Cyclic Gametophytic and Sporophytic Selections

T. Shobha Rani and R. L. Ravikumar*

Dep. of Genetics and Plant Breeding, Univ. of Agricultural Sciences, Dharwad, Dharwad 580 005, Karantaka, India


Figure 1
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Figure 1. Schematic diagram showing synthesis and evaluation of base and improved populations.

 

Figure 2
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Figure 2. Frequency distribution of plants for percent disease index in sunflower populations (2001) (a) at flowering, (b) at 15 d after flowering, (c) at physiological maturity. C0, base populations; C1, Cycle I population without pollen selection; C1G1 = Cycle I population with pollen selection.

 

Figure 3
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Figure 3. Frequency distribution of plants for percent disease index (a) at flowering, (b) at 15 d after flowering, (c) at physiological maturity. C0 = base population; C1 = Cycle I population without pollen selection; C2 = Cycle II population without pollen selection; C1G1 = Cycle I population with pollen selection; C2G2 = Cycle II population with pollen selection.

 





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