Kim, D.-H.; Kim, S.-G.; Lee, H.; Na, C.-S.; Lee, D.-H. The Dormancy Types and Germination Characteristics of the Seeds of Berberis koreana Palibin, an Endemic Species of Korea. Horticulturae2023, 9, 547.
Kim, D.-H.; Kim, S.-G.; Lee, H.; Na, C.-S.; Lee, D.-H. The Dormancy Types and Germination Characteristics of the Seeds of Berberis koreana Palibin, an Endemic Species of Korea. Horticulturae 2023, 9, 547.
Kim, D.-H.; Kim, S.-G.; Lee, H.; Na, C.-S.; Lee, D.-H. The Dormancy Types and Germination Characteristics of the Seeds of Berberis koreana Palibin, an Endemic Species of Korea. Horticulturae2023, 9, 547.
Kim, D.-H.; Kim, S.-G.; Lee, H.; Na, C.-S.; Lee, D.-H. The Dormancy Types and Germination Characteristics of the Seeds of Berberis koreana Palibin, an Endemic Species of Korea. Horticulturae 2023, 9, 547.
Abstract
Berberis koreana Palibin is an endemic plant native to Korea. In this study, we aimed to study seed germination in this species using a water imbibition experiment, gibberellic acid (GA3) treat-ment (0, 10, 100, or 1000 mg·L−1), cold stratification (0, 2, 4, 8, or 12 weeks at 4 °C), a move-along experiment, and phenology studies. In the water imbibition experiment, the weight of the seeds increased by more than 120% in 24 h. Analysis of the internal and external morphological char-acteristics of the seed revealed that the embryo was already fully grown from the fruit and did not grow thereafter. The final germination percentages for cold stratification at 0, 2, 4, 8, and 12 weeks at 4 °C were 12, 32, 59, 59, and 71%, respectively. In the move-along experiment and phe-nology studies, a longer low-temperature treatment period resulted in a higher germination percentage. However, the GA3 treatment had little effect on seed germination. Our results indi-cate that B. koreana exhibits intermediate physiological seed dormancy.
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