Search Results

You are looking at 1 - 8 of 8 items for

  • Author or Editor: Deborah Kean x
Clear All Modify Search
Free access

James R. Baggett and Deborah Kean

Free access

James R. Baggett and Deborah Kean

Free access

James R. Baggett and Deborah Kean

Free access

James R. Baggett and Deborah Kean

Free access

James R. Baggett, Deborah Kean and Kathryn Kasimor

Broccoli (Brassica oleracea L. Italica Group) lines with heads borne above the foliage (exserted) favorably for mechanical harvest were crossed with inbred lines with nonexserted heads. Length of the heads, defined as the portion of the plant above the highest major leaf, was ≈50% of the total plant height in short and tall parents and all plants of the F1, F2, and backcross generations. The principal characteristic identified with good head exsertion was long internodes. Internode length was inherited mostly in an additive manner, with some effect of hybrid vigor apparent in the F1, F2, and backcross to the tall parent. Plant height was also inherited in an additive manner. Head weight in the high-exsertion parent was much lower than in the low-exsertion parent. Within each parent and the F1, head weight was greater in plants with longer internodes and greater plant height. In the segregating generations (F2 and backcross), head weight increased with decreasing internode length, indicating that selection for high head exsertion would result in smaller heads and reduced yield.

Free access

James R. Baggett, N.S. Mansour and Deborah Kean

Free access

James R. Baggett, Deborah Kean, Brian Yorgey, Diane Barrett and G.W. Varseveld

Free access

Michael Mazourek, George Moriarty, Michael Glos, Maryann Fink, Mary Kreitinger, Elizabeth Henderson, Greg Palmer, Ammie Chickering, Danya L. Rumore, Deborah Kean, James R. Myers, John F. Murphy, Chad Kramer and Molly Jahn