Soft spring wheat grade Nerda

Soft spring wheat grade Nerda

FROM 2017 sity. Agroliga Semena LLC transfers the soft spring wheat variety Nerda to state tests for the main spring-wheat regions of the Russian Federation (sat down. № 805-72). В 2016 sity. in Kurgan, Omsk region. laid production sites for testing this variety and the issue of its state testing is being considered. Nerda is mid-season (05) a high-yielding variety of spring wheat in its ripeness group in the forest-steppe of Tyumen and adjacent regions. The growing season in different heat- moisture availability years ranges from 85 to 95 days. In this, it compares favorably with the Rainbow variety, ripening it earlier on 3-5 days.

Authors: Polikarpov S,A, Chalkov A.N.

Nerda is resistant to lodging, drought and immunity to major diseases. By the quality of food grain – valuable and good spy. Obtained by multiple individual selection from a hybrid population created with the participation of varieties Vera, Third, Rainbow followed by stress screening at reseeding.

Variety of lutescens. Large grain, red (type I). Weight 1000 grains reaches 45-50 sity. Nature 780-820 g / l. Gluten in grain 25-28%.

– high yield in most years, differing in terms of heat and moisture supply. Over the years of testing in a competitive trial of the company, the average yield was 45 c / ga, What's on 7,5 c / ha above the Omsk standard 36. During these years, the weather conditions were very extreme.. So in 2011 sity. it was a cold rainy summer. В 2012 and 2013 yy. dry events noted, especially at the beginning of summer (early summer drought). This did not allow the varieties to fully realize their genetic potential..

In the best areas of different test regions, the maximum yield values ​​during the test years reached high values. Nerda - 6,5 тн га, what characterizes its potential (achievable under favorable conditions of moisture and nutrition) yield.

Noteworthy is the yield of the Nerda variety in dry years. When compared with the standard variety, in these years, their resistance to drought was fully manifested. Increases received +1,1, +1,5 тн га, which is significantly higher. And taking into account the economic threshold of yield in 12-15 kg ha, obtaining such a crop made it possible to ensure its profitability at an acceptable level. With a lower yield and a low price of grain sold, the yield of many other wheat varieties did not allow for its expanded reproduction and profit..

Nerda is very responsive to complex complex fertilizers. At N50-80 P20-30 kg. in. gives significant increases in yield and grain quality. The system of fertilization and feeding with macro and microelements is usual for intensive wheat, taking into account the agrochemical analysis of the soil.

 

When forming the yield potential of the variety, we paid special attention to the selection for increased uniform tillering. Usually in sowing at optimal plant density 350-450 PC. on 1 sq m. the plant of the new variety has 2 – 3 evenly developed and close in height ears. With such tillering ability, the variety reacts negatively to increased sowing rates. (recommend not higher 4,5-5,0 million. viable grains per hectare).

The variety favorably distinguishes its tolerance to damage by brown and stem rust. (by the type of delayed defeat) and immunity to powdery mildew. In recent years, the frequency and harmfulness of rust diseases - brown (sheet) and stem rust. During the years of epiphytoties of these diseases in 2012-2014, 2016 yy. the Nerda variety received increases +2,3 – +2,5 тн га, which is significantly higher than the standard yield level. By type of resistance of new varieties to diseases – field (horizontal), known, that this type of resistance is the most stable.

Assignment of the variety (hybrid) on product use – mid-season food wheat for intensive farming systems and no-till..

What are the features of varietal cultivation technology

sowing is possible with 20.04-5.05 and desirable until 15-25 May.

higher seeding weight required (due to large grain), but thickening from above is undesirable 5 million. sprouted grains per hectare.;

requires sowing with treated seeds (etching is necessary once every two – three years with preparations containing chemical active substances against wheat dust smut from among those approved for use

Labor intensity in the cultivation of a new variety and its technology are somewhat more costly due to the higher rate of sowing seeds per hectare (+ 20-40 kg / ha or +150-250 rub / ha to the level of the standard variety) and due to the need to dress the seeds, at the same time, the profitability of the obtained grain is higher due to the high yield (+3-5 and more centners / ha). So at the Yalutorovsk variety site in 2016 yy. when breeding the Nerda variety, a crop was obtained 42 c / ga, which is higher than that of the Omskaya variety 36 and Icarus sown there on 7-9 c ga. Such a striking contrast there in the yield of Nerda with Omsk 36 in that 2016 sity. - practically 1,0 тн. га, achieved because, that the latter is badly rusty.

Estimated net effect of the new variety (hybrid) 1000-1500 rub. per hectare of crops. What is the difference from the varieties with which it competes in the fields of farms -

from the Rainbow variety (medium-late type) is characterized by earlier maturation, more uniformity of the stem, more yielding and technological. More resistant to lodging. Has advantages in terms of grain quality - higher content of wet gluten in grain, bakery grade at the level 4 score.

from the mid-season variety Omskaya 36, The third common is now more drought tolerant, also has coarse grain, significantly higher resistance to brown and stem rust. Nerda is more resistant to lodging and has a lower stem.

The broadest test of a new variety is proposed at the variety sections of the Russian Federation in 4, 7, 9, 10, 11, 12 and other test regions and in production conditions.