| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
International Center for Tropical Agriculture, A.A. 6713, Cali, Colombia
* Corresponding author (spsingh{at}cgnet.com).
Crop cultivars that tolerate water stress would stabilize and expand production in drought endemic environments. They would require less irrigation and help conserve water, an essential natural resource. My objectives were to (i) compare, in water-stressed and nonstressed environments, the performance of inbred lines from interracial populations of common bean (Phaseolus vulgaris L.), involving water-stresstolerant parents, (ii) identify lines that out-yielded the parents, and (iii) determine heritability and expected gains from selection. Eighty-five Fs-derived Fs random lines, a population bulk, and four parents from each of two populations (TR 7790 and TR 7791) were evaluated between 1991 and 1993 at Palmira, Colombia. The TR 7790 population involved crosses between common bean races Mesoamerica and Durango, and TR 7791 involved races Mesoamerica and Nueva Granada. Water stress reduced seed yield and 100-seed weight and accelerated maturity. The mean seed yield for population bulk, inbred lines, and parents of TR 7790 in both water-stressed and nonstressed environments were higher than those of TR 7791. In population TR 7790, eight lines yielded higher (by an average of 52%) than the mean of parents and six lines yielded higher (by an average of 41%) than the highest yielding parent under water stress. In population TR 7791, eight lines yielded higher than the mean of parents and one line yielded higher than the best parent under water stress. For seed yield, heritability was low for TR 7791 (0.26 ± 0.18 to 0.38 ± 0.17) and high for TR 7790 (0.66 ± 0.15 to 0.80 ± 0.15). Expected gains from selection ranged from 10 to 48%. These results justify searching for and using more germplasm highly tolerant to water stress from races Durango and Mesoamerica.
Received for publication March 11, 1994.
This article has been cited by other articles:
|
|
 |
|
  S. E. Beebe, I. M. Rao, C. Cajiao, and M. Grajales Selection for Drought Resistance in Common Bean Also Improves Yield in Phosphorus Limited and Favorable Environments Crop Sci., March 19, 2008; 48(2): 582 - 592. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 S. P. Singh Drought Resistance in the Race Durango Dry Bean Landraces and Cultivars Agron. J., August 10, 2007; 99(5): 1219 - 1225. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 D. L. MARSHALL, N. J. ABRAHAMSON, J. J. AVRITT, P. M. HALL, J. S. MEDEIROS, J. REYNOLDS, M. G. M. SHANER, H. L. SIMPSON, A. N. TRAFTON, A. P. TYLER, et al. Differences in Plastic Responses to Defoliation due to Variation in the Timing of Treatments for Two Species of Sesbania (Fabaceae) Ann. Bot., May 1, 2005; 95(6): 1049 - 1058. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. P. Singh, H. Teran, C. G. Munoz, J. M. Osorno, J. C. Takegami, and M. D. T. Thung Low Soil Fertility Tolerance in Landraces and Improved Common Bean Genotypes Crop Sci., January 1, 2003; 43(1): 110 - 119. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
H. Teran and S. P. Singh Comparison of Sources and Lines Selected for Drought Resistance in Common Bean Crop Sci., January 1, 2002; 42(1): 64 - 70. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. P. Singh Broadening the Genetic Base of Common Bean Cultivars: A Review Crop Sci., November 1, 2001; 41(6): 1659 - 1675. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. P. Singh, H. Teran, and J.A. Gutierrez Registration of SEA 5 and SEA 13 Drought Tolerant Dry Bean Germplasm Crop Sci., January 1, 2001; 41(1): 276 - 277. [Full Text] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| The SCI Journals | Agronomy Journal | Vadose Zone Journal | |||
| Journal of Natural Resources and Life Sciences Education |
Soil Science Society of America Journal | ||||
| Journal of Plant Registrations | Journal of Environmental Quality |
The Plant Genome | |||
