n Southern African Forestry Journal - Studies on ovulate strobili and seed production of Pinus patula in KwaZulu-Natal : scientific paper
|Article Title||Studies on ovulate strobili and seed production of Pinus patula in KwaZulu-Natal : scientific paper|
|© Publisher:||South African Institute of Forestry (SAIF)|
|Journal||Southern African Forestry Journal|
|Publication Date||Nov 2001|
|Pages||3 - 8|
|Keyword(s)||Cone production, Optimum altitude, P. patula, Seed efficiency and Seed potential|
Cone and seed production studies in Pinus patula were conducted by the Institute for Commercial Forestry Research (ICFR) in KwaZulu-Natal as part of the improvement programme of the species. The optimum altitude for female strobilus and seed production is approximately 1450 m in KwaZulu-Natal. At four years after establishment of the Breeding Seedling Orchards (BSOs), male and female flowering is high enough to make a commercial cone collection two years later worthwhile. The seed potential is between 120 and 140 seeds per cone and seed efficiency about 50 percent.
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