SU1395219A1 - Method of obtaining hybrid seeds - Google Patents

Abstract

The invention relates to the selection and seed production of agricultural plants, mainly species with an incompatibility system, such as sugar beet. The purpose of the invention is to simplify the production of seeds and increase the yield of hybrid seeds. The method involves the pollination of the sterile form with the fertile form, the joint cleaning of both forms and the use of the obtained seed mixture for industrial crops. A mixture of self-incompatible lines and / or hybrids is used as a pollinator at the last crossing stage.

Description

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SP N5

The invention relates to agriculture and can be used in plant breeding and seed production, most likely in species that have a system of self-incompatibility, for example, in sugar beet breeding and seed production.

The purpose of the invention is to simplify the production of seeds and increase the yield of hybrid seeds.

The method is carried out as follows.

I Example 1. Production of hybrid seeds: using four lines. Four single-seed lines are added, which in 3 crosses provide a high hetero-) osis:

Line A is a sterility preservative and a male-sterile counterpart; I line B - sterility fixer; I line B - self-incompatible line;

line G - self-incompatible line.

Male sterile analogue of line A is baptized with sterility fixer - line B and male sterile 1-hybrid is obtained. Ah B. Self-incompatible lines C and D are propagated in isolation, -la hybrid site is planted on the hybridization field lines В ji Г, if their pollen productivity is approximately equal, maintain in relation to

ten

15

20

25

AHB Hybrid Breeds and a Number of Root Line V Root Breeds in such a way that a large amount of fertile pollination of a sterile hybridization hybridizes the AHB hybrid hybrid with the B line as well as the inter-pollination and G. First generation seed seeds: (AHB) IV; (AHB) CG; In X

A mixture of these seeds is used for cropped crops.

Claims (1)

Formula inventions The method of obtaining gibs mainly in species, self-incompatibility, the inclusion of a sterile maternal paternal form and the joint cleaning of maternal components, which are distinguished in order to simplify the production of hybrid yields as a paternal form of self-incompatible lines and for industrial crops. 1: 1. The ratio between the amount of cor - the whole mixture obtained seeds n. 0 five 0 five AHB hybrid non-fruits and a total number of root crops of lines C and D are selected so that there is enough fertile pollen to pollinate the sterile hybrid. At the site of hybridization, the sterile hybridization of the AHB line B and line G occurs, as well as the inter-pollination between lines B and G. Seeds at the site of hybridization are collected together with the sterile hybrid AHB and self-incompatible lines B and G. of the following composition: (AHB) HV; (AHB) CG; B X G; HHB A mixture of these seeds is used for fermented crops. Invention Formula The method of obtaining hybrid seeds mainly in species with self-incompatibility, including pollination of the sterile maternal form with the fertile paternal form and the subsequent joint harvesting of the maternal and paternal components, characterized in that, in order to simplify the production of hybrid seeds and increase the yield of hybrid seeds, as paternal Forms use a mixture of self-incompatible lines and / or hybrids, and for industrial crops use  the whole mixture of the obtained seeds n.