Breeding method of sugarcane variety with strong ratoon

A technology of sugarcane and varieties, which is applied in the fields of sugarcane cultivation, botany equipment and methods, plant genetic improvement, etc., can solve the problems that the ability of perennial roots of varieties has not been accurately evaluated, the germination ability of sugarcane perennial roots is weak, and there is no guarantee, so as to promote research The effect of development and utilization, improvement of production efficiency and cost saving

Pending Publication Date: 2022-04-29
GUANGXI ZHUANG AUTONOMOUS REGION ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the germination ability of sugarcane perennial roots is mainly observed in the identification nursery and later in each nursery. According to the number of perennial cane plants, it is compared with the main varieties in production. The ones with high yield and high sugar content are selected. Since the main cultivars are not necessarily the ones with strong perennial roots, the perennial root ability of the selected varieties has not been accurately evaluated, and there is no guarantee. As a result, there are currently no main cultivars with strong perennial roots in production. Keep the perennial roots for 2 years; so far there is no unified and standardized evaluation standard for the strength of the perennial root germination ability, which restricts the selection of varieties with strong perennial roots

Method used

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  • Breeding method of sugarcane variety with strong ratoon
  • Breeding method of sugarcane variety with strong ratoon
  • Breeding method of sugarcane variety with strong ratoon

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Experimental program
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Effect test

Embodiment 1

[0024] Present embodiment is a kind of method for evaluating the strong or weak of sugarcane variety perennial root germination ability:

[0025] The method comprises the steps of:

[0026] (1) New planting of sugarcane: planting with seedlings in the planting place, and the sugarcane planted at this time is called new planting cane, and the effective number of stems per unit area of ​​the new planting cane is recorded as A, and the output per unit area is recorded as B; Wherein, the yield per unit area is the average yield of sugarcane harvested per unit land area, and the effective number of stems per unit area is the number of sugarcane single stems with an average plant height of 1.0 meters or more per unit land area during the maturity period;

[0027] (2) Perennial root cane cultivation for the 1st time: after harvesting the newly planted cane of step (1), do not carry out replanting and overturn new planting, use the sugarcane perennial root to germinate new sugarcane s...

Embodiment 2

[0032] Present embodiment is the evaluation method of application embodiment 1, the method for selecting and breeding the kind or strain of strong perennial root;

[0033] The method is as follows: under the same fertilization management level, respectively carry out new planting and first perennial root cultivation of sugarcane varieties or strains to be selected, count and calculate the number of effective stems per unit area and the yield per unit area of ​​the newly planted cane, and the first time. The number of effective stems per unit area and the yield per unit area of ​​a ratoon cane, and the number of effective stems per unit area of ​​newly planted cane is recorded as A, and the yield per unit area is recorded as B; ≥1.01A and the yield per unit area of ​​the first perennial root cane ≥1.02B for sugarcane varieties or lines, it is selected as the variety or line of strong perennial root cane.

Embodiment 3

[0035] The present embodiment adopts the breeding method of embodiment 2 to cultivate the method for the sugarcane seedlings with strong perennial root germination ability;

[0036] Select parent, parent hybridization to obtain hybrid seed, wherein, at least one of said parents is a sugarcane variety or line (i.e. satisfying the sugarcane variety / line of the conditions described in Example 2) with strong perennial root (i.e. strong germination ability of perennial root), above-mentioned, Parental hybridization is to carry out hybridization under the greenhouse condition that temperature is 23 ℃, humidity is 78%, then the obtained hybrid seeds are sown and germinated under the greenhouse condition that temperature is 28 ℃; After seed germination is finished, adjust temperature to 24 DEG C, the humidity is 78%, continue to cultivate; when the seedling age is 3-5 leaves, plant it in a nutrient pot; when the seedling age is 6-9 leaves, sugarcane seedlings are obtained.

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Abstract

The invention relates to the technical field of agricultural planting, in particular to a breeding method of a sugarcane variety with strong perennial roots, through the method for evaluating the perennial root hair growing ability of the sugarcane variety, the perennial root property of the sugarcane can be accurately evaluated, it is guaranteed that the variety with strong perennial roots can be bred, and the breeding efficiency is improved. The breeding research, development and utilization of sugarcane varieties with strong perennial roots are promoted; in addition, standard control varieties do not need to be set synchronously, the evaluation method for the sugarcane ratoon property is standardized, operation is easy, efficient and accurate, and by obtaining, popularizing and applying the strong ratoon sugarcane varieties, the cost can be saved, and the production benefits of sugarcane can be improved.

Description

【Technical field】 [0001] The invention relates to the technical field of agricultural planting, in particular to a method for breeding sugarcane varieties with strong perennial roots. 【Background technique】 [0002] As an important sugar crop and bio-energy crop, sugarcane can save seedlings, save labor, and accelerate early maturity. It is also conducive to speeding up the promotion of improved varieties, reducing the cycle of planting, and prolonging the production cycle. Under the same management conditions, the quality and sugar yield of the perennial root cane of the same sugarcane variety are higher than that of the newly planted cane. Therefore, the selection of strong perennial root sugarcane varieties plays an extremely important role in production and is valued by major sugar producing countries. [0003] The strength of sugarcane perennial root and the yield are not only affected by cultivation techniques and environmental conditions, but the perennial root of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/55A01H1/02
CPCA01G22/55A01H1/02
Inventor 王伦旺邓宇驰王宇萍周会经艳唐仕云黄海荣贤武谭芳李翔
Owner GUANGXI ZHUANG AUTONOMOUS REGION ACAD OF AGRI SCI
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