Will wild wheat grow new ears after heading and cutting?

1. Heading time of wheat

Heading time of wheat refers to the heading time when more than 5% of wheat ears (excluding awns) in the whole field are exposed from the leaf sheath by half. Generally, at the beginning of April, wheat jointing and wheat stalks grow, which is called jointing stage. About 2 weeks after jointing, it is heading, then heading for 1 or 2 weeks, and then flowering for 1 or 2 weeks.

Second, the management of wheat heading date

Spring drought, abnormal temperature changes, frequent cold weather in late spring, moderately inhibit the growth of wheat seedlings in prosperous wheat fields, and avoid premature jointing and reduce cold resistance. According to the weather forecast, timely irrigation should be carried out 1 ~ 3 days before the cold current attack to raise the temperature near the ground and prevent and reduce the freezing injury. Irrigation to prevent freezing is effective in choosing breezy or windless weather.

from jointing stage to heading stage of wheat, both vegetative growth and reproductive growth are carried out at the same time. Generally, the water consumption in this stage accounts for 25% ~ 3% of the whole growth period. Therefore, it is very important to properly irrigate water-saving during wheat jointing and heading stage. If the water supply is insufficient at this time, abnormal heading phenomena such as non-heading, half-heading, big-headed heading and dumb heading will occur.

Third, prevent pests and diseases

The pests and diseases that cause abnormal heading of wheat mainly include take-all disease, root rot, sheath blight, scab and wheat aphid.

1. Take-all disease of wheat

Take-all disease of wheat is a quarantine disease, which produces black plaster-like lesions below 15 cm at the root and stem base of wheat, which may lead to withered ears, and in severe cases, no heading or death of the whole plant.

2. Wheat root rot

is commonly known as dead ear disease and white ear disease, which mainly damages roots and stems, causing discoloration of glume, ear axis and spikelet stalk, and in severe cases, causing no heading, dead spikelet, half ear or dumb ear.

3. Wheat sheath blight

, also known as Rhizoctonia solani and pointy eye disease, is a soil-borne disease, in which susceptible wheat plants die due to the damage of transport tissues, forming withered white ears or not heading.

4. Wheat scab

mainly damages the ear, causing ear rot. The pathogen infects the anther first, and then the inner side wall of the glume. Usually, the spikelet of one ear gets sick first, and then spreads to the ear axis, so that the other spikelets in the upper part die and cannot bear fruit. When the humidity is high, a pink mucilaginous layer is produced in the later part of the disease.

5. Wheat aphid

Wheat aphid, also known as bored worm, can occur in both seedling and ear stages of wheat, and it mainly focuses on the stem, leaf and ear, and excretes honey dew, which affects the respiration and photosynthesis of the plant, causing the wheat plant to die without heading or insufficient filling, the grain shriveled and the 1-grain weight decreased, causing serious yield reduction. Content source/Longchi Agricultural Technology Service Center

IV. Remedial measures for early heading of wheat

If there is drought in wheat, it is recommended to water it in time; In view of the early emergence of wheat, which is inconsistent with the ear stage, it is suggested to spray the mixed solution of urea+potassium dihydrogen phosphate solution+brassinolide twice, which can promote the development of wheat ear, avoid the emergence of wheat ear and seedless, promote wheat grain fullness, and prevent the harm of dry and hot wind and premature aging. When spraying, a bucket of water can use 5-6 grams of urea, about 5 grams of potassium dihydrogen phosphate and a small bag of brassinolide.