(Written by: Khadija Tehseen Arshad)
“Growth is actually a complex processes with different organs developing, growing and dying in overlapping sequences”. It is also: “Irreversible increase in size, weight, or volume”.
Types of growth:
There are basically two types of growth:
- Determinate growth
- Indeterminate growth
It is the type of growth in which a plant first completes its vegetative growth and then it shifts to the reproductive growth.
For example, wheat.
In this type of growth, both stages “vegetative and reproductive” of a plant goes side by side.
For example, Cotton.
Phases of growth:
Basically, there are two phases of growth:
It is that stage of growth when a plant develops its vegetative part. For example, leaves, roots, stem etc.
It is that stage of growth when a plant develops its reproductive part. For example, ovaries, anthers etc.
Growth stages for Cereals crops:
There are different stages of crop for the cereal cops that are:
- Vegetative stage
- Stem elongation stage
- Booting stage
- Heading stage
- Anthesis stage
- Milking stage
- Dough stage
- Ripe seed stage
In this stage of growth, leaves emerge from the plant.(stem elongation process not started).
Stem elongation stage:
In this stage of development, stem elongation starts, specify early or late jointing.
In this stage, flower head is enclosed in flag leaf sheath and not showing.
In this stage, flower head emerging or emerged from flag leaf sheath but not shedding pollen.
In this flowering stage, anthers shedding pollen.
Seed immature, endosperm milky.
In this stage, well developed seed is produced.
Seed ripe, leaves green to yellow brown.
Growth stages for legume crops:
There are different growth stages for the legume crops, that are:
- Late vegetative
- Early bud
- Mid bud
- Late bud
- First bloom
- Mid bloom
- Full bloom
In this stage of leguminous crop, the crop has no visible buds, flowers, or seed pods. Stem at least 12 inch tall.
In this stage of growth and development, flowers start to visible on at least one stem(1%).
In this stage of development of plant, Half (50%) of the stems have at least one bud.
In this stage of plant growth, 75% of the stems has at least one bud and no visible flower.
In this stage, flowers emerge on at least one stem.
In this stage, 50% stems of plant have at least one flower.
In this stage of growth of a plant, 75% of the stems have at least one flower, and no visible seed pods.
Written by: Khadija Tehseen Arshad
University of Agriculture, Faisalabad.
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