Method for improving agar content of gracilaria lemaneiformis
A technology of asparagus and content, which is applied in the fields of botanical equipment and methods, horticulture, plant cultivation, etc., can solve the problems of low asparagus, short cultivation time, poor high temperature and low temperature resistance, and the like, and achieves growth. The effect of increasing the speed and increasing the content of agar
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Embodiment 1
[0009] In the sea area where the maximum temperature is 30-35°C during the day, asparagus that is damaged by high temperature, put the asparagus cultivated in the sea area into the phytohormone culture solution for the first culture for 8-12 hours at night, and then the asparagus The vegetables are temporarily raised in the sea area, and then put the asparagus in the phytohormone culture solution for secondary cultivation at night for 8 to 12 hours, and then put it back to the sea area for cultivation, and then put the asparagus in the plant at night at an interval of 2 days. Carry out three times of cultivation in the hormone culture solution for 8-12 hours, put it back into the sea area for cultivation, and at an interval of 2 days, put the asparagus in the plant hormone culture solution for four times of cultivation for 8-12 hours at night, and put it back into the sea area for cultivation. The concentration of 2,4-epibrassinolide in the plant hormone culture solution is 0.1...
Embodiment 2
[0014] It is basically the same as the embodiment, except that the minimum daytime temperature is 15° C. in the sea area, and the asparagus damaged by low temperature is treated with phytohormone culture solution for four times and cultivated on the 9th day, and the results shown in Table 2 are obtained;
[0015] Table 2: Effects on Asparagus agar content and growth rate of low temperature stress in Example 2
[0016] control group 0.1 mg / L treatment 0.5 mg / L treatment 1.0 mg / L treatment relative growth rate 3.12±0.24 3.78±0.40 4.36±0.20 3.61±0.12 Agar content (%) 18.07±0.21 20.87±0.50 21.65±0.69 19.47±0.53
[0017] It can be seen from Table 2 that after four treatments of phytohormone culture solution, the highest content of asparagus in the treatment group can reach 21.65% of the dry weight of asparagus (2,4-epibrassinolide concentration 0.5 mg / L), The control group was 18.07%. In addition, the low temperature resistance of the aspar...
Embodiment 3
[0019] It is basically the same as the embodiment, except that the maximum daytime temperature is 25°C sea area, and the uninjured asparagus is cultivated on the 9th day after being treated with phytohormone culture solution for four times, and the results shown in Table 3 are obtained;
[0020] Table 3: Effects on Asparagus agar content and growth rate at normal temperature in Example 3
[0021] control group 0.1 mg / L treatment 0.5 mg / L treatment 1.0 mg / L treatment relative growth rate 5.78±0.20 6.16±0.27 6.48±0.43 5.95±0.38 Agar content (%) 18.27±0.12 20.6±0.53 20.93±0.42 19.67±0.32
[0022] As can be seen from Table 3, after four treatments of phytohormone culture solution, the highest content of asparagus agar in the treatment group can reach 20.93% of the dry weight of asparagus (2,4-epibrassinolide concentration 0.5 mg / L ), the control group was 18.27%. Its relative growth rate was 6.48, while that of the control group was only 5...
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