There are 2 types of cilantro, large-leaf and small-leaf, large-leaf varieties of plants are taller, with large leaves and higher yields; small-leaf varieties of plants are shorter, with small leaves, strong flavor, cold hardiness, and better adaptability, but relatively low yields. According to seed size, they are divided into large-grained and small-grained species. Suitable for cultivation in the protected area of the main five varieties: Shandong big leaf, Beijing cilantro, Yuanyang autumn cilantro, white flower cilantro, purple flower cilantro.

First, there are several kinds of cilantro

1, according to the size of the cilantro leaves, cilantro can be divided into large-leafed varieties and small-leafed varieties. Large-leafed varieties of cilantro, the plant is relatively high, the leaves are larger, the notch is small and shallow, the flavor is light, the yield is higher, and small-leafed varieties of cilantro, the plant is relatively short, the leaves are small, the notch is deep, the flavor is strong, adaptable, able to survive in a low-temperature environment, but the yield is a little lower.

2, according to the size of the cilantro seed division, cilantro can be divided into large grain seed and small grain seed. The diameter of the fruit of the large seed cilantro is about 7-8mm, and the diameter of the fruit of the small seed cilantro is about 3mm, and the small seed cilantro is mainly grown in China at present.

3, suitable for planting in the protected area of the main cilantro Shandong big leaf, Beijing cilantro, Yuanyang autumn cilantro, white flower cilantro, purple flower cilantro these five kinds.

(1) Shandong big leaf, plant height 40-50cm, plant is more upright, leaf large, leaf color dark green, slightly thick, petiole length 12-13cm, light purple, the plant is tender, the fragrance is stronger, less fibers, cold hardiness, but heat resistance is slightly worse.

(2) Beijing cilantro, plant height of 30cm or so, leaf blade is small, green, low temperature when the color becomes dark or purple, petiole long and thin, light green, strong fragrance, cold and drought resistance.

(3) yuanyang qiu cilantro, plant height in 42cm or so, strong flavor, heat and drought resistance, suitable for growth in fertile soil.

(4) white-flowered cilantro, strong flavor, late maturity, good cold tolerance, like fertilizer, but the yield is less. Purple-flowered coriander, shorter plants, usually around 7cm, earlier maturity, cold and drought tolerance.

Second, how to germinate cilantro seeds

1, before germination, you need to rub the shell of the cilantro seeds to open, separate the seeds.

2, the seeds soaked in water 4-5 hours later, into the bag, hang the bag in the well from the surface of the water at 6.6-9.9cm, every day the seeds into the well water to moisten once in the well and still hanging at the original height, 7-10 days or so of germination, to be about 40% of the seeds white when taken out of the sowing.

3, with about 18 ℃ of cold water to soak the seeds about 12-24 hours or so (the process needs to change the water once), after soaking the seeds will be fished out, dry, and then put the seeds in a wet bag, put the bag in the ground pit buried 20 hours or so for germination, wait until about 50% of the seeds whitening when taken out for sowing.

4, the use of erythromycin soaked seeds for about 11 hours, after soaking, clean the seeds, and then soaked in cold water for about 10 hours, fish out and cleaned and air-dried, packed in a wet bag placed in a refrigerator at about 9 degrees Celsius, the time in 5-7 days, until about 30% of the seeds whitish take out the sowing.

5, the use of 1% potassium permanganate solution or 50% carbendazim wettable powder 300 times liquid seed soaking for 30 minutes, fish out and wash, and then soak the seeds in water for about 20 hours, placed in a cool place at 20-25 ℃ to germinate, and so on about 30% of the seeds whitening when taken out to sow.