SU1099905A1 - Method of selecting wheat forms with high combination capacity - Google Patents

Abstract

A METHOD FOR SELECTING WHEAT FORMS WITH HIGH COMBINATION ABILITY by isolating plants according to morphological features, characterized in that, in order to simplify the selection, samples are taken that combine live green stems and leaves at full ripeness of the grain.

Description

WITH

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The invention relates to agriculture and can be used in wheat breeding and seed production.

Lime methods for the selection of plants with high combinability by using diallel, topcros, cyclic and other analyzers of POTS 1.

All these methods are laborious, since they are based on carrying out a large number of crosses between parental pairs.

There is also known a method for selecting wheat forms with high combinability by determining the content of high energy phosphorus in germinated seeds of seeds 2.

The disadvantage of this method is the laboriousness of the process of determining heterosis and the impossibility of predicting it in advance.

simplification

The goal is achieved by the fact that, according to the method of selection of forms of wheat with high combinational capacity, samples are taken that combine living green stems and leaves with full ripeness of grain (remontant samples)

Example 1. As a result of crossing an Erythropermum 1080 specimen with a Lutescens sample 1095, the first generation of Lutescens 402 was killed, showed a significant heterosis effect and exceeded the maternal form by 125.2, the father’s class by 230.4 and a zoned Ilichevka variety by 78.0; g / m sown area.

The pedigree of the base object (hybrid of the first generation Lutescens 307, taken for control) includes ordinary samples, while the paternal form of D. 1 I of this hybrid is the same sample

(Lutescens 1095), as for the experienced Lutescens 402 hybrid.

Hybrid Lutescens 307 exhibits a weaker heterosis compared to Lutescens 402 hybrid, but exceeds the maternal form by 90.0, paternal by 32.4 and Ilichevka grade is 120.0 g / m grain.

Example 2. The erythrospermum 1080 (remontant) plant pollinated a sample of Lutescens 320 with the pollen, resulting in a first-generation hybrid Lutescens 360 with a yield of 693.6 g / m2 of grain, exceeding the maternal form by 310.8, paternal by 152.8 and grade Ilichevka 105.6 g / m2.

Hybrid Lutescens 351, taken for control (base object), includes the usual Lutescens 320 and Lutescens 1095 samples in the pedigree, participating in obtaining the above-mentioned Lutescens 360, Lutescens 402 and Lutescens 307 hybrids, practically does not exhibit heterosis compared to the parent ones form.my and zoned variety Ilyichevka.

Example 3. Hybrid of the first generation Erythrospermum 400 from crossing Erythro5 spermum 1080 (remontant) with Erythrospermum 1055, yielding a harvest of 703.2 g / m of grain, exceeds the yield of the maternal form by 162.4 paternal by 178.8 and of a zoned Ilichevka variety by 175.2 g / m.

Hybrid Lutescens 395 (base object);

0 obtained from crossing ordinary samples, one of which was Erythrospermum 1055, which participated in the creation of the hybrid Erythrospermum 400, has a heterosis effect and exceeds the maternal form by grain yield by 20.4

5 6.0, variety Ilichevka - 69.6 g / m of grain. The table shows the heterosis effect of first-generation winter wheat hybrids that include remontant parent forms in the pedigree (1981).

Erythrospermum 1080 tanty)

Olutessen 1095

F Lutescens 402

Lutescens 272

Olutessen 1095

FJLutssens 307

4-125.2 +230.4

+ 78.0

+90.0 +32.4

-120,0

Table continuation.

Claims (1)

METHOD FOR SELECTING WHEAT FORMS WITH HIGH COMBINATION CAPACITY by isolating plants according to morphological characteristics, characterized in that, in order to simplify the selection, samples are selected that combine live green stems and leaves with full ripeness of grain.