Cultivation method of early-maturing low-temperature-resistant inbred line of tomatoes

A breeding method and low-temperature-resistant technology, applied in botany equipment and methods, plant gene improvement, application, etc., can solve the problems of tomato prematurity affecting greenhouse planting benefits, and achieve the effects of reducing breeding costs, easy operation, and fast methods

Pending Publication Date: 2020-05-15
山东永盛农业发展有限公司 +2
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Problems solved by technology

At the same time, the early maturity of tomato also affects the efficiency of greenhouse planting

Method used

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Embodiment 1

[0041] Example 1 A method for cultivating an early-maturing low-temperature tolerant inbred line of tomato, selecting the low-temperature-tolerant inbred pure tomato FQ03 as the female parent, and selecting an inbred line with an extremely early-maturing genetic background (the initial flowering node is at 3-4 nodes) Tomato ysFQ-06 was the male parent and the recurrent parent. Through sexual crossing, suboptimal temperature stress selection and pedigree selection, the tomato early-maturing low-temperature tolerant inbred line ysFQ018 was obtained. The low temperature tolerance of tomato FQ03 is a recessive trait controlled by the main gene and multiple genes; the initial flowering nodes of FQ03 are more than 5 nodes, and ysFQ-06 is not resistant to low temperature.

[0042] The sexual hybridization, suboptimal temperature stress selection and pedigree selection comprise the following steps:

[0043] 1) Hybridization: Using tomato FQ03 as the female parent and tomato ysFQ-06 as...

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Abstract

The invention discloses a cultivation method of an early-maturing low-temperature-resistant inbred line of tomatoes. The cultivation method comprises the following steps of selecting a low-temperature-resistant inbred pure line as a female parent, selecting an inbred line with a super-early-maturing genetic background as a male parent and a recurrent parent, and cultivating the super-early-maturing low-temperature-resistant inbred line through sexual hybridization, suboptimal temperature stress selection and pedigree selection. By adopting the method, the low-temperature-resistant degree and the early-maturing property of a tomato germplasm material can be rapidly, accurately, scientifically and efficiently evaluated, and feasible technical indexes and detection methods are provided for the evaluation of the low-temperature-resistant degree and the early-maturing property of the tomato germplasm, so that the cultivation method is beneficial to rapid cultivation of the early-maturing low-temperature-resistant inbred line of the tomatoes.

Description

technical field [0001] The invention relates to a method for cultivating an early-maturing low-temperature resistant inbred line of tomato, belonging to the technical field of vegetable breeding. Background technique [0002] The main problem faced by overwintering tomato production in northern alpine regions is low temperature and weak light. Especially during the critical production period, the temperature in the greenhouse is low. When the average daily temperature is below 10°C, the growth of tomato will be severely restricted, and varieties that can adapt to the low temperature environment will be selected. It plays an important role in improving the benefits of overwintering tomato cultivation. At the same time, the early maturity of tomato also affects the efficiency of greenhouse planting. Therefore, it is extremely necessary to establish a set of fast, accurate, scientific and efficient breeding methods for early-maturing low-temperature tolerance, and to carry out...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02A01H1/04
CPCA01H1/02A01H1/04
Inventor 梁增文李金玲杨朝霞董甜石杰王述彬
Owner 山东永盛农业发展有限公司
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