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Method suitable for strong seedling cultivation of pumpkin rootstock seedlings

A cultivation method and seedling technology, applied in the field of agricultural cultivation, can solve the problems of changing environment for seedling cultivation

Pending Publication Date: 2021-08-10
HUAZHONG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in actual production, the seedling breeding environment is changeable, and its growth is the result of comprehensive management. So far, there is no standardized management mode for pumpkin rootstock seedlings.

Method used

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  • Method suitable for strong seedling cultivation of pumpkin rootstock seedlings
  • Method suitable for strong seedling cultivation of pumpkin rootstock seedlings
  • Method suitable for strong seedling cultivation of pumpkin rootstock seedlings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～ Embodiment 5

[0043] Embodiment 1~embodiment 5 provides the pumpkin seedling cultivation method that uses as grafting stock, and its temperature environment is as follows: figure 1 , the daily temperature ranges from 11.8°C to 34.5°C, with an average daily temperature of 22.5°C; the night temperature ranges from 11.9°C to 22.5°C, with an average night temperature of 18.5°C, and the temperature in the first five days is above 15°C. Specific steps are as follows:

[0044] Step S1: Soak the pumpkin rootstock seeds in warm water at 55°C, keep the temperature at a constant temperature for 15 minutes, remove the seeds after the water has naturally cooled to room temperature (about 1-2 hours), and then use the paclobutrazol solution prepared in normal temperature water to soak the seeds for the second time at room temperature for 6 hours Then take it out, wash off the mucus, and treat it with 500mg / L Luheng No. 6 agent for 10min-30min, wash it with clean water, and germinate it in a 28°C incubator...

Embodiment 6～ Embodiment 9

[0053] Embodiment 6~embodiment 9 provides the pumpkin seedling cultivation method that uses as grafting stock, and its ambient temperature is as follows: figure 2 As shown, the daily temperature ranges from 12.4°C to 35.3°C, with an average daily temperature of 21.8°C; the night temperature ranges from 9.5°C to 24.1°C, with an average night temperature of 16.6°C. In this range, the average photosynthetically active radiation is 143.4umol m -2 ·s -1 , the range of photosynthetically active radiation is 5umol·m -2 ·s -1 ~905umol·m -2 ·s -1 . The specific operation is as follows:

[0054] Step S1: Soak the pumpkin rootstock seeds in warm water at 55°C, keep the temperature at a constant temperature for 15 minutes, remove the seeds after the water has naturally cooled to room temperature (about 1-2 hours), and then use the paclobutrazol solution prepared in normal temperature water to soak the seeds for the second time at room temperature for 6 hours Then take it out, wash...

Embodiment 12

[0079] When the cultivated seedlings in Embodiment 1~Example 9 and Comparative Example 1~Comparative Example 5 are grown to the first true leaf flattening stage, the growth statistics are carried out. Embodiment 1~Example 5 and Comparative Example 1~3 seedlings see growth Figure 4 , the seedling growth situation of embodiment 6~embodiment 9 and comparative example 4~comparative example 5 sees Figure 5 .

[0080] Its statistics include statistics of individual indicators, statistics of strong seedling index and statistics of seedling emergence time.

[0081] Among them, the statistics of individual indicators include: plant height, stem diameter, aboveground dry weight, underground dry weight, whole plant dry weight, leaf area, root length, root surface, root diameter, and root volume. The statistical results are shown in Tables 5 to 6 shown.

[0082] The strong seedling index is calculated by two methods: Z2: stem diameter / plant height × dry weight of the whole plant, Z4:...

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Abstract

The invention provides a method suitable for strong seedling cultivation of pumpkin rootstock seedlings. The method comprises the following steps of S1, soaking pumpkin seeds with warm water, then soaking the seeds with a paclobutrazol solution with the concentration of 15-30 mg / L at room temperature for the second time, then sequentially performing washing and disinfecting, and accelerating germination until radicles are exposed and grow; S2, sowing the pumpkin seeds subjected to germination acceleration in a matrix with the relative water content of 50%-60% according to the sowing depth of 1-4 cm till the seedling emergence rate reaches 80% or above, and maintaining the relative water content of the matrix to be the initial water content during the period; and S3, performing watering management on the pumpkin seedlings after seedling emergence until the pumpkin seedlings grow to the first true leaf flattening stage or grow to the stage between the first true leaf flattening stage and the one leaf and one core stage. The method has the beneficial effects that the paclobutrazol solution with the concentration of 15-30 mg / L is adopted for soaking the pumpkin rootstock seeds; and when the sowing depth ranges from 1 cm to 2 cm, the plant height can be controlled to range from 3.5 cm to 5 cm, the strong seedling index Z2 is larger than 0.20, and the strong seedling index Z4 is larger than 41.

Description

technical field [0001] The invention belongs to the field of agricultural cultivation, and in particular relates to a method suitable for cultivating strong seedlings of pumpkin rootstock seedlings. Background technique [0002] Cucumbers, watermelons, and melons are widely cultivated melon crops in my country. Continuous cropping obstacles such as fusarium wilt are prone to occur in production. Using pumpkins that are resistant to fusarium wilt as rootstock grafting can overcome melons caused by soil-borne diseases. Continuous cropping obstacle, pumpkin has generally been adopted in the production of melon crops as rootstock for grafting seedling cultivation and grafting cultivation. Pumpkin is the most commonly used rootstock in the production of melon crops, and the pumpkin rootstock is most suitable for grafting when the first true leaf is flattened. In the process of seedling cultivation, under the conditions of low temperature, rainy and high-density sowing, the proble...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/05A01C1/00
CPCA01G22/05A01C1/00
Inventor 别之龙丰崇然黄远张春雨张江涛李梦竹
Owner HUAZHONG AGRI UNIV
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