Abstract
This study investigates the effect of boric acid and sucrose on the germination and growth of Areca catechu L (areca palm). Using areca pollen from Hainan, China, this study determines the influence of culture media with different concentrations of boric acid and sucrose on the germination and growth of areca pollen. Results show that the germination and growth of the pollen tube growth are highest under a boric acid concentration of 0.4 g/L to 0.6 g/L. The germination rate of areca pollen is highest in solid medium with a sucrose concentration of 40 g/L. The optimum culture medium for developing areca pollen comprises 5 g/L agar, 0.4 g/L to 0.6 g/L boric acid, 40 g/L sucrose, and water. Furthermore, areca pollen grows most rapidly approximately 1.5 h after in vitro cultivation at normal temperature, and growth stabilizes at approximately 3 h. The principle that governs the development of areca pollen is also discussed.
Highlights
Areca palm, known as “lazy tree” and “money tree”, is an important farming product in Hainan province, China
By in vitro areca pollen germination and growth test, this study investigates the influence of boric acid and sucrose on the germination rate of areca pollen, as well as on the duration of pollen development and germination
Areca pollen grains were cultured on culture media with 40 g/L sucrose, 5 g/L agar, and boric acid concentrations of 0, 0.1, 0.2, 0.4, 0.6, 0.8, 1.0, 2.0, 3.0, 4.0, and 5.0 g/L
Summary
Known as “lazy tree” and “money tree”, is an important farming product in Hainan province, China. Areca palm is a cross-pollinated crop, and its florescence lasts from May to July, during which Hainan experiences high temperatures and frequent rains. These adverse weather conditions can induce harmful flower and fruit drop from areca palm, yet related preventive measures have not been established. For example, causes floral organ dysplasia or morphological abnormalities in the plant [3,4], thereby preventing pollination. By in vitro areca pollen germination and growth test, this study investigates the influence of boric acid and sucrose on the germination rate of areca pollen, as well as on the duration of pollen development and germination. This research provides theoretical basis for concentration tests on boric acid and sucrose through spraying in areca palm plantations
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