Tillering stage: the phenological period of cereal crops. The standard is that the first tiller bud germinates and protrudes from the axil of basal leaf 1-2cm. The date when the whole plant tillers more than 50% is the whole plant tillering stage.
Tillering stage refers to the period from emergence to jointing stage, which is mainly the growth period of vegetative organs such as roots, leaves and tillers. It is the most vigorous and abundant period of plant root growth, and it is also an important period for reproductive organs to begin to grow and develop.
As far as leaves are concerned, all the leaves near the root grow out during this period, and the number of leaves out accounts for about 3/4 of the total leaves. Tillering is the main feature of this period, and the population and tiller number reach the peak before getting up and jointing, which is the main period to regulate population development.
Extended data:
Rice tillering:
From transplanting to tillering stage, the process takes about 30 days (depending on varieties, sowing dates and seedling raising methods). Tillering stage can be divided into green turning stage (transplanting), effective tillering stage and ineffective tillering stage.
Greening period: Transplanted seedlings are injured in the process of pulling, transporting and transplanting, which is called planting injury. Therefore, after transplanting, it takes some time to turn green and grow new roots, which is called rejuvenation period.
The length of rejuvenation period is related to the size of plant damage. The rejuvenation period of plants with little damage is short, and the rejuvenation period of plants with great damage is long.
Generally, it will turn green 5 ~ 7 days after insertion. For example, early rice should be planted in sunny days, and late rice should be planted in cool days. The shoveled seedlings turned green earlier than those pulled out, and some shoveled seedlings did not turn green (they would not turn yellow after being inserted).
Effective tillering stage: after turning green, if the conditions are suitable, the axillary buds at the base of the pseudostem can grow new plants, which are called tillering.
References:
Baidu Encyclopedia-Tiller