Abstract
Seventy seedlots of Leucaena leucocephala, L. pallida, L. diversifolia, L. retusa, L. esculenta, L. confertifolia, L. greggii and L. pulverulenta and various hybrid combinations were examined for survival to freezing weather, biomass production, leaf protein content and in vitro dry matter digestibility in Texas. Three sites along a 600 km north-south transect were chosen to provide a wide range in exposure to freezing weather. The minimum temperature on the warmer Three Rivers site was −7 °C while the minimum temperatures on the colder Vernon site was −14 °C. At the Three Rivers site where −7 °C temperatures occurred and where forage production was a priority and some winter frost damage was not a problem, L. leucocephala K636 and hybrids containing L. diversifolia and L. pallida have the most promise. If total lack of damage to −7 °C is essential, species such as L. retusa, L. pulverulenta (seedlot 61, 62) and hybrids such as L. retusa × L. greggii (53) and L. retusa × L. pulverulenta (55) have the greatest potential. This study examined only one family from each of the cold-hardy species as a parent in the promising hybrids. As extensive intraspecific genetic variation is present within these leucaena species there is great potential to find hybrids with much better combinations of cold hardiness, forage production, leaf protein and dry matter digestibility.
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References
Bassala P, Felker P and Swakon DHD (1991) A comparison of Leucaena leucocephalaand Leucaena pulverulentaleaf and stem age classes for nutritional value. Trop Grassl 25: 313–316
Cunilio TV and Prine GM (1991) Leucaena: a forage and energy crop for the Lower South, USA. Soil and Crop Sci Soc F1 Proc 51: 120–124
Felker P, Chamala RK, Glumac EL, Wiesman C and Greenstein M (1991) Mechanized forage production of Leucaena leucocephalaand L. pulverulenta. Trop Grassl 25: 342–348
Gathaara GN, Glumac EL and Felker P (1991) Three-year growth studies of L. leucocephala (1094) and L. pulverulenta(1001) at two spacings in Texas. For Ecol Manage 40: 189–198
Glumac EL, Felker P and Reyes I (1987) A comparison of cold tolerance and biomass production of Leucaena leucocephala, L. pulverulenta, and L. retusa. For Ecol Manage 18: 251–271
Hammond AC, Allison MJ, Williams MJ, Prine GM and Bates DB (1989) Prevention of leucaena toxicosis of cattle in Florida by ruminal inoculation with 3-hydroxy-4-(1H) pyridonedegrading bacteria. Am J Vet Res 50: 2176–2180
Kirmse RD and Fisher JT (1989) Species screening and biomass trials of woody plants in the semi-arid southwest United States. Biomass 18: 15–29
Khristova P, Gabir S and Semov T (1988) Pulping characteristics of Leucaena leucocephalaand Conocarpus lancifoliusfrom Sudan. Trop Sci 28: 1–4
Moore JE and Mott GO (1976) Fermentation tubes for in vitrodigestion of forages. J. Dairy Sci 59: 167–169
National Academy of Sciences (1977) Leucaena: Promising Forage and Tree Crop for the Tropics. National Academy of Sciences Publishers, Washington, DC, 115 pp
Othman AB, Soto MA, Prine GM and Ocumpaugh WR (1985) Forage productivity of Leucaena in the Humid Subtropics. Soil and Crop Science Society of Florida. 44: 118–122
Sorensson CT and JL Brewbaker (1994) Interspecific compatibility among 15 Leucaenaspecies (Leguminosae: Mimosoideae) via artificial hybridizations. Am J Bot 81: 240–247
Whisenant SG, Ueckert DN and Huston JE (1985) Evaluation of selected shrubs for arid and semiarid game ranges. J Wildl Manage 49: 524–527
Zobel, BJ, Van Wyk G and Stahl P (1987) Growing Exotic Forest. John Wiley & Sons, New York, 508 pp
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Felker, P., Sorensson, C., Ueckert, D. et al. Growth, cold-hardiness, protein content, and digestibility of 70 Leucaena seedlots on three sites in Texas, USA. Agroforestry Systems 42, 159–179 (1998). https://doi.org/10.1023/A:1006125624985
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DOI: https://doi.org/10.1023/A:1006125624985