Propagation methods of grass and fruit

Grass fruit is the fruit of cardamom plants of Zingiberaceae, growing in tropical and subtropical humid and shady broad-leaved forests, like warm and humid climate, afraid of heat, drought and frost, with an average annual temperature of 15-20 ℃. The main methods of reproduction are ramet reproduction and seed reproduction. Let's take a look at it.

Plant propagation of grass and fruit

Before the new buds began to germinate in spring and had not yet been unearthed, the annual robust ramet was selected from the mother plant cluster, the lower leaves were cut off, and the upper leaves were left 2-3 pieces, so as to reduce water evaporation. Dig up the root with bud, truncate 7-10 cm, truncate and plant. The hole was opened according to the row spacing of 1.3 m × 1.7 m, and the specification of planting hole was 50 cm × 50 cm × 40 cm. One clump was planted in each hole, compacted with soil and drenched with root water.

Seed propagation of grass and fruit

1. Seed collection and selection: harvest when the mature pericarp of the fruit is purplish red from August to September, peel off the peel, wash the pulp, soak the seeds in clean water for about 10 hours, then store them with wet sand, and select high-yielding plants with large grains, full seeds and no diseases and insect pests as seed collection plants.

2. Seed treatment: peel off the pericarp before sowing, wash the pulp, soak the seeds in clean water for 10-12 hours, then rub the seeds in a bamboo dustpan with coarse sand to wipe off the aril, or mix the seeds with 30% plant ash, rub the seeds by hand, remove the surface colloid layer, and then sow or dry to sow the seeds in the following spring.

3. Sowing time: spring and autumn can be sowed with picking, and autumn sowing is better. Spring sowing should be carried out when the temperature rises above 18 ℃. The average monthly temperature of autumn sowing is above 18-20 ℃. Within one month, a large number of seeds germinate and unearthed. The germination rate can reach more than 80% 40-50 days after sowing, and more than 90% from December to February of the following year.

4. Sowing method: when sowing, ditch the border with a row spacing of 15-20 cm, sow according to the plant spacing of about 6 cm, sow at a depth of 1.5-2 cm, cover the soil and cover the grass with water after sowing, and the seedlings can be planted after half a year.