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A method for increasing the amount of pollen collection of wild sugarcane resources

A technology of pollen collection and wild species, applied in botany equipment and methods, plant genetic improvement, application, etc., can solve the problems of utilization, lack of uniformity in flowering period, limitation of sugarcane wild species resources, in-depth research on the utilization of sugarcane distant hybridization breeding, etc. question

Active Publication Date: 2021-09-10
YUNNAN AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the number of tillers of wild sugarcane resources after preservation in the resource nursery is limited. Due to the influence of low temperature and insufficient water in natural conditions, the flowering period of the same material is not uniform, and the amount of pollen produced is less, making it difficult to hybridize in sugarcane. Utilization in breeding limits the in-depth study of wild sugarcane resources and the utilization of sugarcane distant hybrid breeding, thereby restricting the development of sugarcane germplasm innovation, variety improvement and sugarcane planting and production industries; in the prior art, there is no relevant research Solve this problem

Method used

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  • A method for increasing the amount of pollen collection of wild sugarcane resources
  • A method for increasing the amount of pollen collection of wild sugarcane resources
  • A method for increasing the amount of pollen collection of wild sugarcane resources

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Embodiment 1

[0026] Such as figure 1 shown

[0027] A method for improving the amount of pollen collection of sugarcane wild species resources, comprising the following steps:

[0028] Choose a large flower pot with good drainage and ventilation, and fill the flower pot with soil without impurities to 1 / 2 of the total volume;

[0029] Excavate the materials of wild species, such as the fine-grained shoudoumi and scorpion grass, which have the corresponding target traits (disease resistance, insect resistance or stress tolerance) and normal flowering and loose powder, from the resource garden. It is required to have tiller buds and some old roots, and cut off All the leaves of the material are planted in the flowerpot and further covered with soil to 3 / 4 of the total volume of the flowerpot. According to the amount of pollen required, the same material can be planted in 10-30 pots, watered thoroughly and covered with a transparent plastic film. Cultivate in a greenhouse at 28-32°C to let ...

Embodiment 2

[0035] The Sugarcane Research Institute of Yunnan Agricultural University has preserved nearly 1,000 copies of wild sugarcane germplasm resources collected at home and abroad. In recent years, the pollen of excellent clones has been collected for use in distant hybridization of sugarcane. There are fewer tiller stems germinated, and due to the limitation of natural conditions (the flowering period of each tiller stem is not concentrated, the pollen amount is low at low temperature, and the pollen is blown off by strong wind), each material can collect up to 0.2mL of pollen per year, which cannot meet the requirements for 1 cultivated sugarcane flower panicle carries out hybrid pollination (1 flower panicle generally needs 4.5mL pollen to be able to fully complete pollination); Use the method described in the present invention to begin to cultivate a part of hand-cut material in 2015 ( figure 2 ) and collected pollen, 30 pots were cultivated, and more than 30 tubes of pollen ( ...

Embodiment 3

[0037] Application of a method for increasing pollen collection of sugarcane wild species resources in increasing the pollen collection of close relative wild species resources of tropical crops;

[0038] The method can increase the amount of pollen collection of wild relative resources of other tropical crops, and is suitable for use by other tropical crops.

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Abstract

The invention discloses a method for increasing the amount of pollen collection of wild sugarcane resources, and relates to the technical field of pollen collection of wild sugarcane species. The method for increasing the pollen collection amount of wild sugarcane resources is to divide the wild sugarcane germplasm resources materials with excellent target traits into potted plants and cultivate them in the greenhouse. The growth conditions can be artificially controlled to promote a large number of tillers and neat flowering of each material. Consistent, and at the same time can avoid pollen blown by strong winds, effectively improving the pollen collection amount of the target wild germplasm resource materials. It facilitates in-depth research and utilization of wild sugarcane resources, thereby promoting sugarcane germplasm innovation, variety improvement and the development of sugarcane planting and production industries.

Description

technical field [0001] The invention relates to the technical field of pollen collection of wild sugarcane species, in particular to a method for increasing the amount of pollen collection of wild sugarcane resources. Background technique [0002] Sugarcane (Saccharum spp.) is a tall plant of the genus Saccharum in the Gramineae subfamily Saccharastrae. In the sugarcane subfamily, there are also some genera that are closely related to sugarcane and have important utilization value for sugarcane breeding, such as Erianthus, Miscanthus, Sclerostachya, Narenga And Imperata (Imperata) and so on. The plants of these genera together with Saccharum are collectively referred to as "Saccharum complex". Because these plants have many excellent traits such as strong tillering, strong stress resistance, and barrenness tolerance, they have potential use value for the cultivation of new sugarcane varieties or the improvement of original varieties, and they are constantly being studied a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01H1/02
CPCA01H1/02
Inventor 王先宏李富生何丽莲杨清辉娄红波
Owner YUNNAN AGRICULTURAL UNIVERSITY
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