Some effects of self-, cross-, and open-pollinations in Picea pungens
- 1 February 1984
- journal article
- research article
- Published by Canadian Science Publishing in Canadian Journal of Botany
- Vol. 62 (2) , 392-395
- https://doi.org/10.1139/b84-059
Abstract
Self-fertility of Picea pungens Engelm. ranged from 0 to 176 seeds per cone for 72 trees. Self-pollinations reduced the average seed yields to 40 and 23% of the respective cross-, and open(wind)-pollinations. Selfing decreased the germination for nonstratified seed to 71% of that for cross-pollinated seed, whereas the germination of stratified selfed and crossed seed varied from 80 to 100%. Selfing also depressed the growth of 1- to 5-year-old seedlings.Keywords
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