A Prediction Method of Photosynthesis Based on Changes of Leaf Tension
A prediction method and photosynthesis technology, applied in the field of agricultural engineering and crop information detection, can solve the problem of inability to quantitatively analyze the dynamic change trend of plant photosynthesis, and achieve the effects of high work efficiency, high sensitivity and good controllability
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[0033] Brassica napus was selected as the research material; rape seeds were germinated in 12 plug trays in the laboratory, and Hoagland's culture medium was prepared to cultivate the seedlings to the 3-leaf stage or above, and the seedlings with the same growth were randomly selected as the model plants of the investigated plants; different concentrations of Polyethylene glycol PEG-6000 was added to the Hoagland culture medium, and the culture medium with different drought levels was prepared as shown in Table 1.
[0034] Table 1 Different levels of drought stress
[0035]
[0036] The above-mentioned 3-leaf stage seedlings of the investigated plants used to make models were cultivated at the same time with culture solutions of different drought levels, and the corresponding culture solution was replaced every day. The third expanded leaf was used as the object of investigation. During 9:00-11:00 in the morning of the 18th day, the physiological capacitance value C, the le...
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