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Title: TRANSFERRING HEAT TOLERANCE AND INDETERMINANCY FROM INDETERMINATE JAMAICA RED (PI 163122) TO KIDNEY BEAN

Author
item Miklas, Phillip - Phil
item Hannan, Richard
item Smith, James - Rusty
item BEAVER, J - USDA, MAYAGUEZ, PR
item RILEY, R - NOVARTIS SEEDS
item ANTONIUS, S - AGRI SALES

Submitted to: Bean Improvement Cooperative Annual Report
Publication Type: Research Notes
Publication Acceptance Date: 10/1/1999
Publication Date: 4/1/2000
Citation: MIKLAS, P.N., HANNAN, R.M., SMITH, J.R., BEAVER, J.S., RILEY, R., ANTONIUS, S. TRANSFERRING HEAT TOLERANCE AND INDETERMINANCY FROM INDETERMINATE JAMAICA RED (PI 163122) TO KIDNEY BEAN. BEAN IMPROVEMENT COOPERATIVE ANNUAL REPORT, 43:68-69. 2000.

Interpretive Summary:

Technical Abstract: Narrow genetic diversity, determinate growth habit, and sensitivity to high temperature contribute to yield plateau in kidney bean (Phaseolus vulgaris L.). A heat tolerant landrace cultivar "Indeterminate Jamaica Red" was crossed with "Red Hawk" dark red kidney bean in an attempt to increase yield potential of kidney bean. Most of the dark red kidney bean lines out-yielded Red Hawk across the moderate temperature environments, whereas none out-yielded Red Hawk in the high temperature environments. Overall, indeterminate vine growth habit expressed greater yield potential than determinate bush growth habit, and light red kidney had greater yield potential than dark red kidney suggesting that genes which condition dark red seed coat color in kidney bean may be associated with lower yield through linkage or pleiotrophy.