Method for cultivating tidy and strong gourd stock seedlings

A gourd seedling and gourd technology, which is applied in the field of cultivating neat and strong gourd rootstock seedlings, can solve the problems of small contact area of ​​grafting interface, rapid hypocotyl elongation, and influence on grafting speed, and achieves simple and easy operation and improves grafting survival rate , the effect of improving the stress resistance of seedlings

Inactive Publication Date: 2020-05-26
广西特色作物研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Watermelon grafted seedlings must be raised in protective facilities such as greenhouses. Due to the influence of the microclimate in the greenhouse, after the emergence of gourds, the hypocotyls are prone to rapid elongation, forming "tall seedlings". The hypocotyls are thin and long, resulting in The contact area of ​​the grafting interface is small, which is not conducive to the grafting operation, but also affects the survival rate of the grafting. At the same time, the hypocotyl is too long, and the seedlings are prone to lodging, especially after watering, which brings great difficulties to the later management.
[0006] (3) The cotyledons of the gourd seedlings are not in the same direction. During the grafting operation, the posture must be changed continuously, which not only affects the grafting speed, but also easily touches the grafted watermelon scion, causing the scion to break or fall
[0007] (4) Due to the inconsistency of seed maturity and sowing depth, the gourd seeds will not emerge uniformly after sowing, the seed shell will not fall off (commonly known as "capped"), and the growth will be different. When grafting, the gourd seedlings will vary in size, and some are suitable for grafting. , and some are too small to be grafted, and even some empty cups that have not emerged, and small and weak seedlings that are harmed by diseases and insect pests cannot be grafted
[0011] However, the above-mentioned technologies only solve a single problem, but cannot solve all problems at the same time.

Method used

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  • Method for cultivating tidy and strong gourd stock seedlings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] 1) Sun-dried seeds: Before planting, choose fine weather and spread the gourd seeds flat (thickness no more than 3cm) on straw mats for 2 days, flipping once every 4 hours.

[0039] 2) Seed soaking: Soak the seeds with 10-15ppm paclobutrazol solution twice the volume of the seeds for 48 hours. During the seed soaking process, stir the seeds once every 6 hours to avoid precipitation of the paclobutrazol solution and soak the seeds evenly.

[0040] 3) Seed drying: After soaking the seeds, take out the seeds, rinse them with clean water, then spread the seeds (thickness no more than 3cm) on the straw mat, and place them in a dry and ventilated place away from direct sunlight for 6 hours, every 2 hours Flip once to dry the moisture of the seed skin.

[0041] 4) Acceleration of germination: spread a piece of plastic film on the bottom of the tray, then evenly spread the dried seeds on the plastic film (the thickness of the seed is not more than 5cm), and then cover the seeds...

experiment example

[0047] From May to June 2017, a test of gourd rootstock seedling cultivation was carried out at the test base of Guangxi Specialty Crops Research Institute, and the test was carried out with reference to the method of Example 1. Two treatments were designed in this experiment:

[0048] Treatment 1: Soak gourd seeds in 10ppm paclobutrazol solution for 2 days (48 hours). Seed soaking began at 10 am on May 16, 2017, and until 10 am on May 18, try to unify the sowing depth and sowing direction when sowing.

[0049] Treatment 2: Seed soaking in clear water for 24 hours, starting at 10:00 am on May 17, 2017, until 10:00 am on May 18, and placing the seeds arbitrarily.

[0050] The test variety is Guilin local "8" shaped gourd, and each treatment is repeated 3 times, with 150 seeds in each repetition. On May 23, the germinated seeds were sown into 60-hole seedling trays, and 2 trays were repeatedly sowed for a total of 120 seeds. One day before sowing, the plug trays were soaked wit...

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Abstract

The invention discloses a method for cultivating tidy and strong gourd stock seedlings. The method comprises eight steps of seed drying, seed soaking, seed airing, germination acceleration, sowing, uncapping, cup picking and disease and insect prevention. Through seed drying, seed airing and prolonging the seed soaking time, the problems of slow germination and untidiness of gourd seeds due to moisture absorption difficulty because of thicker seed coats of gourd seeds, inhibition of seed germination by mucus on seed coats of gourd and the other factors are solved; and the seeds are treated with a multi-effect triazole solution during seed soaking, elongation of hypocotyls of gourd seedlings is effectively inhibited, and sowing depth and direction, timely uncapping and cup picking are combined to ensure that stock seedlings are tidy and consistent during grafting. The method is simple, easy to operate, broad in market prospects and suitable for wide application.

Description

technical field [0001] The invention relates to a method for cultivating rootstock seedlings, in particular to a method for cultivating neat and robust gourd rootstock seedlings. Background technique [0002] Using gourds as rootstocks to cultivate watermelon grafted seedlings is one of the most effective methods for controlling Fusarium wilt in watermelon production. Fusarium wilt of watermelon is a devastating soil-borne disease. The pathogen can survive in the soil for 5 to 6 years. Continuous cropping often causes severe disease, resulting in reduced yield or even failure. Cucurbit not only has a strong resistance to the pathogen of Fusarium wilt of melons It is resistant to watermelon and has a strong affinity with watermelon. It has almost no effect on the quality of watermelon after being grafted with watermelon as a rootstock. It is currently the most commonly used rootstock variety for cultivating watermelon grafted seedlings. [0003] However, in the cultivation p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/00A01C1/00A01C1/08A01G2/30
CPCA01C1/00A01C1/08A01G2/30A01G22/00
Inventor 王红梅贺申魁曾成易显荣张社南刘凤琼
Owner 广西特色作物研究院
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