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Method for breeding high-aroma flue-cured tobacco capable of achieving efficient utilization of nitrogen

A technology of flue-cured tobacco with high aroma, which is applied in the field of tobacco genetics and breeding, and can solve the problems of variety aroma quality, insufficient aroma quantity, and low nitrogen fertilizer use efficiency

Active Publication Date: 2018-09-21
GUIZHOU TOBACCO SCI RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a breeding method for flue-cured tobacco with high aroma and high nitrogen utilization, so as to quickly and accurately select target strains with high aroma and high nitrogen utilization from hybrid offspring, so as to solve the existing problems. Insufficient aroma quality and aroma quantity of flue-cured tobacco varieties, low nitrogen fertilizer use efficiency and other problems

Method used

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  • Method for breeding high-aroma flue-cured tobacco capable of achieving efficient utilization of nitrogen

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Breeding of a new strain "6015-13-5" with high aroma and high nitrogen utilization, the steps are as follows:

[0024] (1) The first-generation hybrid (F1) "6015" was obtained by crossing the high-quality and high-flavor flue-cured tobacco variety NC82 as the female parent and the flue-cured tobacco resource MT-2 with high nitrogen utilization as the male parent.

[0025] (2) It was planted in Hainan in the winter of that year, and it was added as a second-generation hybrid (F2) "Hai 6015".

[0026] (3) Single plant selection of the second generation of hybrids: 200 plants of the second generation of hybrids "Hai 6015" were planted in plots with medium and low fertility, and K326, NC82, and MT-2 were planted as controls. The amount of nitrogen application is 70% of the production amount of local high-quality tobacco leaves, and the phosphorus and potassium fertilizers are applied according to the production amount of local high-quality tobacco leaves. A single plant "6...

Embodiment 2

[0044] Honghua Dajinyuan was used to replace NC82 in Example 1 as the female parent, Fuyan No. 3 was used to replace MT-2 in Example 1 as the male parent, and the rest of the methods were the same as in Example 1.

Embodiment 3

[0046] Cuibi 1 was used to replace NC82 in Example 1 as the female parent, G80 was used to replace MT-2 in Example 1 as the male parent, and the rest of the methods were the same as in Example 1.

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Abstract

The invention discloses a method for breeding high-aroma flue-cured tobacco capable of achieving efficient utilization of nitrogen. The method comprises the following steps that 1, a good-quality high-aroma flue-cured tobacco variety serves as a female parent, flue-cured tobacco capable of achieving efficient utilization of nitrogen serves as a male parent, and hybridizing is conducted to obtain F1-generation seeds; 2, southern breeding and generation adding are conducted in winter in the current year, south propagation and generation are carried out in winter in the current year, and selfingis conducted to obtain F2-generation seeds; 3, a low-and-medium-fertility land is selected to plant a F2 segregative generation, wherein the nitrogen application amount is lower than the normal application amount for production of local good-quality tobacco; 4, flue-cured tobacco leaves are harvested and are subjected to single-plant smoking evaluation, and plants with relatively good smoking evaluation quality and good aroma quality are screened out; 5, the plants screened in step 4 are planted into a group according to step3 and then are selected according to step4; 6, step 5 is repeated till the plants are stable. The method can be used for quickly and accurately selecting the new high-aroma flue-cured tobacco variety capable of achieving efficient utilization of nitrogen from filial generations so as to solve the problems that existing flue-cured tobacco varieties are insufficient in aroma quality and aroma amount and the utilization efficiency of nitrogen fertilizer is low.

Description

technical field [0001] The invention belongs to the technical field of tobacco genetics and breeding, in particular to a breeding method for flue-cured tobacco with high aroma and high nitrogen utilization. Background technique [0002] Tobacco aroma is an important factor in measuring its quality and usability. Compared with the advanced tobacco-producing countries in the world, the prominent problems in the quality of tobacco leaves in my country are poor aroma and insufficient aroma. Improving the aroma and taste of tobacco leaves has become the main direction of tobacco production in my country. Variety is the basis for improving the quality of tobacco leaves and the most important factor affecting the aroma of tobacco. Therefore, breeding new varieties of flue-cured tobacco with high aroma is of great significance to meet the raw material demand of Chinese cigarette brands and ensure the sustainable development of high-quality tobacco leaves. It has also become the fo...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H1/04
CPCA01H1/02A01H1/04
Inventor 吴春王志红孔德钧潘文杰林英超杨春元
Owner GUIZHOU TOBACCO SCI RES INST