Botanical knowledge of tea plants
1. Classification of tea in botany
2. Botanical characteristics related to tea plants
Tea tree type
Arbor type: the trunk is obvious.
Small tree type: the base trunk is obvious.
Shrub type: the rhizome begins to branch out, without a clear trunk.
Tree posture
It is divided into upright, semi-open and open according to the size of the branch angle.
Germination period
In terms of the time when the variety grows into a bud and a leaf in the spring shoots of the place of origin, in addition, according to different production requirements, it can also be expressed with a bud and two leaves germination period and a bud three leaves germination period in order to guide production and processing.
In addition, under the same conditions, taking the germination period of Fuding white tea as the control, the germination period is more than 5 days earlier than Fuding white tea, the germination period is 0 to 4 days earlier, the late 1 to 5 days is intermediate, and the late birth is more than 5 days.
Hundred buds weigh
One bud and two leaves hundred bud weight: 100 spring grown one bud two leaf fresh leaf weight.
One bud three-leaf hundred bud weight: 100 spring-grown one-bud three-leaf fresh leaf weight.
Leaf flakes
Refers to the fixed leaves in the middle of the mature branches of the non-picking tea tree.
Leaf size
The leaf area is calculated using mature leaves in the middle of the annual branches of the tea plant after unproducted or deep pruning (leaf characteristics are based on this).
Leaflet species: leaf area is less than 20c㎡
Medium leaf species: leaf area 20~40c㎡
Large leaf species: leaf area 40~60c㎡
Extra-large leaf species: leaf area greater than 60c㎡
Leaf occurrence
It is distinguished according to the different angles of the blades and the main trunk.
Leaf shape
Circle: The aspect ratio is below 2.0, and the widest point is close to the middle.
Oval: The aspect ratio is below 2.0, and the widest point is close to the base or end.
Oval: The aspect ratio is 2.0 to 2.5, and the widest point is close to the middle.
Oblong oval: The aspect ratio is 2.6 to 3.0, and the widest point is close to the middle.
Lanceolate: Aspect ratio above 3.0.
Leaf surface
Degree of leaf surface uplift, inward folding, flattening, and dorsal curl.
Leaf color
Mature leaf colours are divided into light green, green and dark green.
Leaf veins
The leaf veins of the leaves are reticulated veins, which are divided into main veins, lateral veins, and fine veins. The logarithmic variation of lateral veins is 4 to 16, and the differences between varieties are significant; the veins are obvious and hidden.
Degree of leaf twists and turns
Leaf tip
Leaf teeth
flower
Only flowering varieties should be observed during the full flowering period, and about 50% of the flowers are in full bloom.
Fruit shape
The shape varies with the number of carpels developing in the fruit, with both regular and irregular shapes:
The fruit of the tea tree developed in 1 chamber is spherical;
The fruit of the tea tree developed in the 2 chambers is kidney-shaped;
The fruit of the tea tree developed in the 3 chambers is triangular;
The fruit of the tea tree developed in the 4 chambers is square;
The fruit of the tea tree developed in the 5 chambers is plum-shaped.
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