Changes in Agronomic Traits of Garlic (Allium sativum L.) over Generations After the Cultivation of Meristem Culture-Induced Bulbils
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Meristem culture (MC) is a technique for producing virus-free garlic plants with high vigor and productivity. We assessed the changesin the agronomic traits of “Namdo” garlic over several generations after the cultivation of MC-induced bulbils. We examined the plantheight, leaf sheath length and diameter, leaf number, bulb weight and diameter, clove number, and bulb size distribution. Comparedwith that of the control, bulb weights of the first-generation bulbils cultivated for three and two years and the second-generation bulbilscultivated for one year increased by 8.7–27.2, 13.9–30.4, and 36.6–46.9%, respectively. In three and two-year cultivation of the first-generation bulbils and one-year cultivation of the second-generation bulbils, the proportions of extra-large-sized bulb weight inmeristem-cultured plants were 16.2–38.6, 24.0–35.8, and 27.1–51.1%, respectively, whereas that of the control was 7.6%. Thus, thefirst-generation bulbils can be cultivated for three years to renew the seed bulbs while maintaining productivity.
Abstract
Meristem culture (MC) is a technique for producing virus-free garlic plants with high vigor and productivity. We assessed the changesin the agronomic traits of “Namdo” garlic over several generations after the cultivation of MC-induced bulbils. We examined the plantheight, leaf sheath length and diameter, leaf number, bulb weight and diameter, clove number, and bulb size distribution. Comparedwith that of the control, bulb weights of the first-generation bulbils cultivated for three and two years and the second-generation bulbilscultivated for one year increased by 8.7–27.2, 13.9–30.4, and 36.6–46.9%, respectively. In three and two-year cultivation of the first-generation bulbils and one-year cultivation of the second-generation bulbils, the proportions of extra-large-sized bulb weight inmeristem-cultured plants were 16.2–38.6, 24.0–35.8, and 27.1–51.1%, respectively, whereas that of the control was 7.6%. Thus, thefirst-generation bulbils can be cultivated for three years to renew the seed bulbs while maintaining productivity.
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