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Title: CHARACTERISTICS OF LEAVES OF COTTON VARIETIES IN RELATION TO WHITEFLY FEEDING BIOLOGY

Author
item COHEN, ALLEN
item FREEMAN, THOMAS - NDSU, FARGO, ND
item CHU, CHANG CHI
item HENNEBERRY, THOMAS
item BUCKNER, JAMES
item NELSON, DENNIS
item VAIL, PATRICK

Submitted to: Silverleaf Whitefly: 1997 Supplement to the Five Year National Research and
Publication Type: Abstract Only
Publication Acceptance Date: 8/1/1997
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Seventeen cotton varieties were analyzed for characteristics related to whitefly feeding. Leaves were analyzed from plants sown at the UC Desert Research & Extension Center. The varieties analyzed were DP 20, DP 50, DP 90, DP 5415, DP 5432, DP 5461, DP 9050, DPX 9057, NUCOTN 33b, CB 1135 and CB 1233 from the US; and CS 50, Siokra L23 V-15, Siokra 1/649, 87031-126 and 89013-114 from Australia. Measurements were made of leaf thickness, distance from lower leaf surface (abaxial surface) to the nearest point on minor vascular bundles, number of minor vascular bundies per unit of leaf surface, thickness of epidermal cells and number of gossypol glands per unit of leaf surface. The differences between these characteristics are discussed in terms of potential resistance to whiteflies in light of what is known of the geometry of whitefly feeding.