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A kind of chemical detasseling method of black pine

A chemical detasseling and morphological change technology, which is applied in botany equipment and methods, plant genetic improvement, application, etc., can solve problems such as high cost, low efficiency, and difficult operation, and achieve long-term, slow-speed, and cheap Effect

Active Publication Date: 2021-05-07
烟台市林业科学研究所
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a method for chemical detasseling of black pine; mainly solve the problems of difficult operation, high cost and low efficiency in traditional manual detasseling

Method used

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  • A kind of chemical detasseling method of black pine
  • A kind of chemical detasseling method of black pine
  • A kind of chemical detasseling method of black pine

Examples

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Embodiment 1

[0043] Example 1, see figure 1 , 2 , 3, 4, a kind of black pine chemical detasseling method, comprises the steps:

[0044] a In the emasculation period, according to the morphological changes of the black pine microspore bulbs, the development process of the black pine microspore bulbs is divided into dormant period, encapsulation period, sporulation period, discoloration period, maturity period and loose powder period; The emasculation stage of pine microsporophyll bulbs;

[0045] b Agent selection, glyphosate (30% water solution) and oxyfluorfen (10% emulsifiable concentrate);

[0046] c Drug preparation, mix glyphosate and oxyfluorfen, and set the volume to 1000ml, which will become the mother solution. The ratio is: glyphosate (active ingredient) is 0.16~0.20μg / L, oxyfluorfen (active ingredient) is 0.09~0.12μg / L;

[0047] d Spraying method, put the prepared spraying liquid into the agricultural sprayer, adjust the nozzle of the sprayer into mist, and spray evenly at th...

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Abstract

The invention discloses a chemical detasseling method for black pine, which is characterized in that emasculation is selected at the sporulation stage of the small spore leaf balls of black pine, and 30% glyphosate water and 10% oxyfluorfen EC are mixed. Set the volume to 1000ml, dilute 100 times with water when applying, ready to use, spray evenly on the microspore leaf ball with the sprayer, spray 3 times in total, once every 3 days; greatly reduce labor costs and save costs , the operation is simple, the efficiency of castration is significantly improved, and there is no influence on the development of megasporophyll bulbs and branches and leaves. It is ecologically safe, and the castration rate reaches 100%. The demand for hybrids.

Description

Technical field: [0001] The invention relates to the technical field of breeding subject in forestry science (code 2201510), in particular to a chemical emasculation method for black pine, which is used for interspecific crossbreeding of pinus genus with black pine as the female parent. Background technique: [0002] Heterosis refers to the phenomenon that two parents with different genetic composition are crossed, and the resulting hybrid F1 is superior to its parents in terms of growth vigor, stress resistance, and yield. Utilizing heterosis is an important way to improve plant yield, quality, and stress resistance. The use of heterosis in forest trees has achieved many successful examples in tree species such as slash pine, just pine, and larch. [0003] Black pine is native to Japan and the southern coast of Korea, and has been introduced in my country for a hundred years. It has excellent characteristics such as resistance to barrenness, drought, salt and alkali, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01H1/02
CPCA01H1/02
Inventor 李保进祁树安路兆军苗杰陈丽英王淑惠吴德军王开芳
Owner 烟台市林业科学研究所
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