Abstract
Growth variability and effect of seed size on growth of seedlings of Acacia nilotica ssp. tomentosa of a Senegalese provenance were studied in a greenhouse experiment. Seedlings were raised from a sample of 52 seeds with a seed weight range of 0.070 g to 0.258 g; and a range of growth variables were measured on seedlings harvested 11 weeks after planting. Based on the sample mean and variance, the sample size required to estimate the parameter (mean) of the growth variables was determined. Seedlings showed a large variability in growth. There were five-fold and three-fold differences between seedlings in leaf area and total dry weight, respectively. Seed weight has little effect on seedling growth. The number of replications required to estimate a parameter mean of the different growth variables, within ±20% margin of error at P = 0.05, ranged from nine to 24. The observed growth variability was indicated to be an important biological variable which could be used to improve growth and yield in A. nilotica.
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References
EDIWB (Economic Development Institute of the World Bank) (1989) People and Trees: The role of social forestry in sustainable development, pp 39-55. The world Bank, Washington DC
Ernst WHO (1988) Seed and seedling ecology of Brachystegia spiciformis, a predominant tree component in miombo woodlands in south central Africa. Forest Ecology and Management 25: 195-210
FAO (1983) Fuelwood supplies in the developing countries. Forestry paper No. 42, FAO, Rome Gomez AK and Gomez AA (1984) Statistical procedures for agricultural research, 2nd edition, John Wiley & Sons, New York, 532 pp
Joly HI, Zehnlo M, Danthu P and Aygalent C (1992) Population Genetics of an African acacia, Acacia albida. 1. Genetic diversity of populations from west Africa. Australian Journal of Botany 40: 59-73
Krishan B and Toky OP (1996) Provenance variation in seed germination and seedling growth of Acacia nilotica ssp. indica in India. Genetic Resources and Crop Evolution 43: 79-101
Ngulube RM (1989) Seed germination, seedling growth and biomass production of eight central American multipurpose trees under nursery condition in Zomba, Malawi. Forest Ecology and Management 27: 21-27
Oboho EEG and Ali JY (1985) Preliminary investigation of the effect of seed weight on early growth characters of some savannah species. In: Okojie JA and Okoro OO (eds) Proceedings of 15th annual conference of the forestry association of Nigeria, Yola, 25-29 November, 1985, pp 144-156. University of Sokoto, Nigeria
Salazar R (1986) Genetic variation in seeds and seedlings of ten provenances of Gliricidia sepium (Jacq.) Steud. Forest Ecology and Management 16: 391-401
Sniezko RA and Stewart HTL (1989) Range-wide provenance variation in growth and nutrition of Acacia albida seedlings propagated in Zimbabwe. Forest Ecology and Management 27: 179-197
Sorensen FC and Campbell RK (1985) Effect of seed weight on height growth of Douglas-fir (Pseudotsuga menziesii (Mirb.) France var. menziesii) seedlings in a nursery. Canadian Journal of Forest Research 15(6): 1109-1115
Wanyancha JM, Mills WR and Gwaze DP (1994) Genetic variation in Acacia albida (Faidherbia albida) and its agroforestry potential in Zimbabwe. Forest Ecology and Management 64: 127-134
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Wolde-Mieskel, E., Sinclair, F.L. Growth variability in a Senegalese provenance of Acacia nilotica ssp. tomentosa. Agroforestry Systems 48, 207–213 (2000). https://doi.org/10.1023/A:1006386209560
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DOI: https://doi.org/10.1023/A:1006386209560