Publication Date
1993
Description
Erodiurn seeds present variable dormancy in and even within each species. Thus, it is important to know the factors that determine this variation as related to the persistence of its species. E. rnoschatmn and E. rnalacoides seeds were collected at the end of the annual cycle at La Rinconada de Maipli (33°28'S and 7S050'W). Effects of seed sour.ce (collecting in 1986, 1988 and 1990), age (keeping seeds under laboratory conditions) and maternal factors (cutting plants at early flowering) were analysed. Seeds were tested for germination capacity and germination rate at a constant temperature of 15°C on Petri dishes provided with filter paper and water, and for viability with tetrazolium. Increased age enhanced the germinative capacity by reducing the dormancy degrees. This latter changetl with water availability to the mother plants. Seed germination was not significantly affected by plant cutting.
Citation
Johnston, Myrna; Olivares, Alfredo; and Fernandez, Gladys, "An Investigation in to the Effect of Some Factors on the Germination of Erodium Seeds" (2024). IGC Proceedings (1993-2023). 6.
https://uknowledge.uky.edu/igc/1993/session51/6
Included in
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An Investigation in to the Effect of Some Factors on the Germination of Erodium Seeds
Erodiurn seeds present variable dormancy in and even within each species. Thus, it is important to know the factors that determine this variation as related to the persistence of its species. E. rnoschatmn and E. rnalacoides seeds were collected at the end of the annual cycle at La Rinconada de Maipli (33°28'S and 7S050'W). Effects of seed sour.ce (collecting in 1986, 1988 and 1990), age (keeping seeds under laboratory conditions) and maternal factors (cutting plants at early flowering) were analysed. Seeds were tested for germination capacity and germination rate at a constant temperature of 15°C on Petri dishes provided with filter paper and water, and for viability with tetrazolium. Increased age enhanced the germinative capacity by reducing the dormancy degrees. This latter changetl with water availability to the mother plants. Seed germination was not significantly affected by plant cutting.
