Development of specific and nonspecific reponses to stress in Pinus sylvestris L. at population level in a gradient of drought years

Abstract

The results of monitoring the types of seed reproduction systems and 12-year experiment on self-pollination in Scots pine have been used to analyze the adaptive reaction norm of three seed-productivity traits: self-fertility coefficient, seed plumpness, and number of seeds per cone. The development of nonspecific and specific responses to stress has been followed in a gradient of years with early droughts (1991, 1995, 2001, 2007, 2012). The results show that the reduction of seed yield and the proportion of inbred progeny and progeny of drought-tolerant forms in annual seed production increase proportionally to the strength of climatic stress experienced by the population.

DOI: 10.1134/S1067413615050136

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@article{Kuznetsova2015DevelopmentOS, title={Development of specific and nonspecific reponses to stress in Pinus sylvestris L. at population level in a gradient of drought years}, author={Nadezda Kuznetsova}, journal={Russian Journal of Ecology}, year={2015}, volume={46}, pages={405-410} }