Wolf, Jerry . 2006. T&D Snippets—Suitable Pollen Isolation Bags for Selective Breeding of Conifers. 0624 2S18. Missoula, MT: U.S. Department of Agriculture, Forest Service, National Technology and Development Program.

Suitable Pollen Isolation Bags for Selective Breeding of Conifers

By Mary Ann Davies

Tree improvement programs strive to grow trees with desirable traits, such as disease resistance, cold hardiness, and fast growth. Controlled pollination mates genetically superior trees. During the selective breeding process, isolation bags prevent unwanted pollen from reaching the female pine cone flowers. High-quality isolation bags are getting hard to find. MTDC located several types of isolation bags to evaluate under field conditions. This tech tip discusses the results and includes ordering information.

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