Characteristics and varieties of Oenanthe javanica

Water celery is also called Chukui. It is more cultivated in the south of the Yangtze River. With tender stems and petioles for consumption, the flavor is better, it is a kind of high-yield aquatic vegetable, which can be put on the market in large quantities during the spring light period.

Characteristic characteristic

Water celery has wide adaptability to environmental conditions, strong cold resistance, can keep green leaves after frost, and rarely die due to low temperature. The suitable temperature for cultivation is about 20 ℃. The stems and leaves stopped growing below 10 ℃. It grows old at high temperature in summer, but it is always green all the year round.

The growth and development of water celery is affected by the length of sunshine, and the sunshine is short in autumn and winter, which is the peak period of vegetative growth of water celery roots and leaves. Under the condition of long sunshine in spring and summer, water celery turns to Internode elongation and stolon growth, which is also the reproductive growth period of flowering and fruiting.

Water celery likes dampness, is afraid of drought, and needs plenty of water during the growing period. In the seedling stage, in order to improve soil permeability and promote seedling growth, the shallow water of 3-7 cm can be maintained. When the plant grows up, it needs very deep water, so as not to submerge the leaves.

The roots of water celery are thin and white. The stem is hollow, angular and upright. The root leaves are tufted, bipinnately compound, leaflets ovate or rhombic-elliptic, apex apiculate, leaf margin coarsely serrate. Petiole slender, mostly reddish. Flowering from the apex of the stem in summer, the flowers are small, white, umbels, the fruit is brown, oval, the top is sharp glabrous, there is a seed inside, the ripe fruit falls naturally, drifts with the water, and is not easy to harvest. The common varieties of water celery are:

1. The leaflet water celery plant is 40-45 cm high, the leaves are ovate, 2 cm long, 1.5 cm wide, petiole 23 cm long, transverse diameter 1 cm, green-white.

two。 The large-leaf water celery plant is 65-70 cm high, the leaves are oval, 4.1 cm long, 2.1 cm wide, petiole 29 cm long, transverse diameter 0.6 cm, green Baise.