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and also the dark duration temperature (dark period temperature) is 15.1 C. 1 C. It is controlled to ensure that the daily standard temperature comes to be 16 C. 1 C. The cotyledon is harvested when the saffron leaves have perished. Right here, the change from the colosphere development step S3 to the colosphere enhancement action S4 is properly carried out at the time when the colosphere is based on the corm (mother round), however in the speculative example described later, the colosphere development is completed.


It must be noted that the decision regarding whether or not the sphere was created can be confirmed by the viewer's visual observation due to the fact that the bulbing ratio of the corm has actually changed to 1.5 in the phase where the bulbing proportion surpasses 1.5 - hydroponically growing saffron. it can. Furthermore, since saffron divides the same number of child rounds as the variety of buds, in the sphere formation action S3, buds going beyond a fixed number are cut.

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The gathered child bulb is made use of as a corm in a freshly carried out flowering induction step S2. That is, the following flowering induction action S2 is carried out utilizing the harvested cotyledon to gather the saffron flowers, and also a new cotyledon is collected with the cotyledon forming action S3 and also the cotyledon hypertrophy action S4.


Next, an experimental example of the saffron farming technique according to today innovation will certainly be defined. In the experiment shown below, 2 man-made meteor gadgets LPH-240/ 410SPC produced by Nippon Medical Instruments Co., Ltd. are utilized, and as received FIG. Then, a total amount of 8 examination areas (examination area a to evaluate section h) are ready, and also each test area a to h has 8 corms 1 to 8 as shown in FIG.

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Additionally, the nutrient service used in each examination zone a to h was readied to 1/2 times the "Otsuka A prescription" of Otsuka Chemical Co., Ltd., and also the nutrient remedy was changed once a week. Table 1 shows the typical value of the mass, optimum size, as well as minimum diameter for every examination area of the corm (mother bulb) utilized for cultivation.




A: Blooming induction action in the flowering induction action S2, the atmosphere received Table 2 was embeded in the within of the artificial climate tool (hereinafter referred to as "indoor"). That is, the interior humidity is 85%, the space temperature is 17 C., the carbon dioxide focus is 400 ppm, the light/ dark cycle is 8 hours for the light duration, 16 hrs for the dark duration, and also the photon change thickness is 223 to 281 mols 1 m 2.

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In the flowering induction action S2, the variety of blossoms, preconception weight, dry weight of stigma, shoot length, and crocin content were gauged as dimension things when saffron blossomed. Right here, the shoot length suggests the size from the base of the bud or fallen leave sprouting from the bulb to the suggestion of the leaf.


B: Cobulus formation step The colosphere development action S3 was moved to the colosphere formation step S3 when the blooming of the corms of all examination areas a to h was finished. In the shift to the bulb formation step S3, the stems of the examination sections a, c, e, as well as g are scratched to ensure that the number of buds is one, and the bulbs of the examination areas b, d, f, and h are buds.

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Additionally, in the sphere formation step S3, the interior of the synthetic meteor including the Saffron examination sections a to d is maintained in the state of Table 2 (the state of "no low temperature level therapy"), that is, the state of the blooming induction action S2, The interior of the synthetic climate tool including the test areas e to h was readied to the state revealed in Table 3, that is, the state where the space temperature was less than the blooming induction step S2 (the state "with reduced temperature therapy").


To do. That is, the developer of the here and now application is performing an experiment of a cultivation technique (growing technique of "with reduced temperature level treatment") in which the area temperature level of the light bulb formation action S3 is less than the flowering induction action S2 in 2011 The cultivation technique by this experiment is referred to as "2011 approach.") The 2011 technique succeeded in shortening the formation duration of the youngster balls.

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C: Colossal bulb enhancement action The change to the colosphere hypertrophy action S4 was done when the bulbing proportion of all the light bulbs (colospheres) created in the colosphere formation step S3 exceeded 1.5. Furthermore, before changing the indoor environment setup with the change to the cotyledon hypertrophy step S4, the examination area c as well as the test area g and also the examination section d as well as the examination section h were replaced.


That is, by changing the examination section, the synthetic meteorological apparatus (the left development chamber) including the test sections a, b, g, and h has an indoor humidity of 70%, a room temperature of 18 C., a light period of 18 C., and a dark period of 15. 1 C.

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15 C., dark duration is 7 C. (everyday standard temperature is 10.3 C.), carbon dioxide concentration is 400 ppm, light-dark cycle is 10 hrs light duration, 14 hrs dark duration, and photon flux density is 223-281 mols 1 m -2 (this setup is referred to as "reduced temperature level ")". And in this coleoptile enhancement action S4, the chute length and the maximum diameter of the colosphere were gauged as measurement items.