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Method for quickly reproducing wheat seeds by aid of light periods

A photoperiod and wheat seeding technology, applied in horticultural methods, botanical equipment and methods, applications, etc., can solve the problems that limit the work progress of large wheat breeders and scientific researchers, and achieve accelerated breeding process and strong operability , the effect of simple technology

Inactive Publication Date: 2018-11-23
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This greatly limits the work process of large wheat breeders and scientific researchers

Method used

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  • Method for quickly reproducing wheat seeds by aid of light periods
  • Method for quickly reproducing wheat seeds by aid of light periods

Examples

Experimental program
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Effect test

Embodiment 1

[0019] (1) Pretreatment: select the barley variety Zheda No. 9, place it at 55°C for 7 days, then place it at 4°C for 3 days to break the dormancy, then soak it in tap water for 4-6 hours, change the water and rinse it 2-3 times during the period, and complete the soaking. Obtain pre-treated barley seeds ready for sowing;

[0020] (2) Seedling emergence: Prepare respectively 4L, 11L circular cultivation pots and 32-hole deepening tree tray pots (about 0.2L per hole); fill cultivation substrates (peat: vermiculite) in various sizes of cultivation pots =2:1, mass ratio, add slow-release fertilizer with a mass concentration of 1‰), water thoroughly, and the moisture content of the substrate is 60-70%. The barley seeds pretreated in step (1) are sown, and cultured in a 22° C. incubator under dark conditions until seedlings emerge. Pay attention to observe the emergence of seedlings, generally the seedlings can be seen in 3 days.

[0021] (3) Illumination: After emergence, first ...

Embodiment 2

[0027] The photoperiod in the incubator in step (3) of Example 1 was adjusted to 22h light and 2h dark, and other operations were the same.

[0028] The results are shown in Table 1. Statistics show that there is no significant difference in the length of the growth period of barley planted in different sizes of cultivation pots; there is a significant difference in the length of the growth period of barley and wheat; the growth period of barley after extending the light time to 22h is significantly shorter than that of the control And the growth period of natural field cultivation, under the condition of 22h light, the growth period of Zheda 9 and Yangmai 20 were shortened to 55.3 days and 65.5 days respectively.

Embodiment 3

[0030] The photoperiod in the incubator in step (3) of Example 1 was adjusted to 24h light and 0h dark, and other operations were the same.

[0031] The results are shown in Table 1. According to the statistics, it was found that the barley grown in various cultivation pots could not complete its complete growth period, which indicated that it is necessary to shorten the growth period by preparing the correct light and dark time and light intensity.

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Abstract

The invention discloses a method for quickly reproducing wheat seeds by the aid of light periods. The method includes steps of filling cultivation pots with cultivation substrates and thoroughly pouring water in the cultivation substrates; sowing pretreated wheat seeds, and carrying out culture on the pretreated wheat seeds in culture tanks at the temperatures of 22 DEG C under dark conditions until seedlings emerge; regulating the internal light periods of the culture tanks until the culture tanks are under the conditions of 20-22 h illumination / 2-4 h darkness, the corresponding temperaturesof 24 DEG C / 18 DEG C, the relative humidity of 55%-75% under the control and the soil surface reaching illumination intensity of 4000-12000 lux after the seedlings emerge; carrying out periodic watering to keep soil moist; carrying out culture until grain filling late periods, then stopping carrying out watering, continuing to carry out culture until wax ripeness periods and harvesting seeds. Themethod has the advantages that the illumination time is regulated and controlled, the daily illumination time is prolonged and reaches 20-22 h, the fertility periods of barley and wheat can be shortened and reach 55-63 days and 66-75 days, accordingly, the barley can be reproduced by 5-6 generations in a year, and the wheat can be reproduced by 4-5 generations in a year.

Description

technical field [0001] The invention relates to a method for rapid propagation of wheat seeds by means of photoperiod regulation, especially a method for rapid propagation of barley and wheat. Background technique [0002] As one of the important food sources of human beings, wheat is an important crop worldwide and one of the three staple foods in my country, and its importance is self-evident. Barley is the fourth largest cereal crop in the world after corn, wheat and rice in planting area and yield. It has a wide range of uses, mainly used in food, feed and beer brewing. Accelerating the breeding and breeding of fine varieties of barley is not only the goal of barley breeders and researchers, but also plays an important role in the development of barley industrialization and ensuring national food security. [0003] As we all know, the breeding cycle of barley is long and the process is slow. One of the reasons is that the growth period of large wheat is long, and gene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G31/00A01G7/04
CPCA01G7/045A01G31/00Y02P60/14
Inventor 叶玲珍张国平王寅
Owner ZHEJIANG UNIV
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