Leaf area index makes the leaf area instrument show its talent

Leaf area index makes the leaf area instrument show its talent

My understanding of the several curves in the chart:

OAD: OA segment, with the increase of leaf area index, the actual amount of photosynthesis increased; after A point, with the increase of leaf area index, the actual amount of photosynthesis no longer increases and is a certain value.

OBC: OB segment, with the increase of leaf area index, dry matter quality increased; after B point, with the increase of leaf area index, dry matter quality decreased.

OCD: With the increase of leaf area index, respiratory rate increases in proportion.

In addition, I have made a guide line indicating that under a certain leaf area index:

HE=FH+GH: Actual Photosynthesis = dry matter mass + respiration

EF=GH: These two lines are equal and all represent respiratory volume

GE=FH: The two line segments are equal and both represent dry matter quality

From the above, the leaf area index has a certain relationship with the photosynthesis of the leaf, because the leaf is the main place for photosynthesis, and the size of the leaf directly determines the efficiency of photosynthesis. Therefore, the birth of the leaf area scanner enables us to better understand the photosynthesis process of plants.

The measuring process of the scanning live leaf area meter is as follows: The portable leaf area meter is turned on to be warmed up, and when the light plate of the instrument is turned on, the blade to be measured is laid on the center of the plate. Close the luminous plate cover, the system will automatically measure the surface area of ​​the tested blade, and save the area on the instrument LCD display. This scanning living leaf area meter can measure any irregular, any color and thickness of the blade, and it can produce results in 1 second.