The scientific name is Eleusine indica (L.) Gaerth. It is a grass annual herb. Alias ​​valerian, gourd grass. Widely distributed throughout the country. It is an important weed of cotton, beans, potatoes, vegetables, orchards.
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Morphological traits Stem stalks, oblique or prone, some nearly upright, plant height 15-90cm. Leaf blade; leaf sheath flat, sheath hairy, ligule short. Spikes 2-7, arranged in fingers at the culm point; Cob slightly wider, spikelets double in densely arranged on the side of the rachis, with 3-6 small flowers; Ying and glutinous awnless, first Ying The piece is shorter than the second glumes. The first lemma has three veins, a ridge, a rough ridge, and small cilia. Caryophyllally ovate, brown to black, with distinct wavy wrinkles. Rely on seeds.
Eco-characteristics Shanghai has emerged in the middle and late April, peaking in the middle and early May, and few in June-August. Some seeds can produce two generations within one year. Mature seeds in the fall are dormant in the soil for more than 3 months. The germination rate is high in the o-1 cm soil, and does not germinate in the depth more than 3 cm. Germination requires lighting at 20-40°C. The germination rate is low at constant temperature and there is no light to germinate.
Morphological traits Stem stalks, oblique or prone, some nearly upright, plant height 15-90cm. Leaf blade; leaf sheath flat, sheath hairy, ligule short. Spikes 2-7, arranged in fingers at the culm point; Cob slightly wider, spikelets double in densely arranged on the side of the rachis, with 3-6 small flowers; Ying and glutinous awnless, first Ying The piece is shorter than the second glumes. The first lemma has three veins, a ridge, a rough ridge, and small cilia. Caryophyllally ovate, brown to black, with distinct wavy wrinkles. Rely on seeds.
Eco-characteristics Shanghai has emerged in the middle and late April, peaking in the middle and early May, and few in June-August. Some seeds can produce two generations within one year. Mature seeds in the fall are dormant in the soil for more than 3 months. The germination rate is high in the o-1 cm soil, and does not germinate in the depth more than 3 cm. Germination requires lighting at 20-40°C. The germination rate is low at constant temperature and there is no light to germinate.
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