ЭлБиб

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ценозов низовых злаковых трав // Научное обеспечение кормопроизводства и

его роль в сельском хозяйстве, экономике, экологии и рациональном природо

пользовании России. - М. : Угрешская типография, 2013.-С . 156-164.

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ООО

«Книга», 2013. - С. 193-197.

THE INFLUENCE OF MOWING GRASS IN LATE SUMMER AND AUTUMN

ON THE FORMATION OF SHOOTS AND THE SEED YIELD

OF SMOOTH BROME

(Bromopsis inermis

(Leys). Holub)

A. V. Ponomarenko. V. N. Zolotarev. I. M. Shatsky

In article results o f studying the effect o f cutting crops in the period from 10 Aug-hundred

on 20 September on the formation o fpatterns o f herbage and seed yield o f awnless brome.

Found that with each successive term in the overall structure was observed in a consistent

increase in the number o f shorter less-developed shoots with 1-2 leafy, from 13 to 39 to

143 uuits/nf, or 3 to 11 times compared with the control. Timing o f mowing pronounced

noted a steady decline in most developed shoots with Jour or five leaves, 12-61 % com

pared with control. The number o f shoots with three sheets in the overall structure, on the

contrary, increased from 20 to 41%. The results o f research o f the biology o f forming

shoots awnless brome in the steppe zone o f the South Central black earth region in the

cultivation o f seeds. It is established that the development o f generative shoots awnless

brome comes from a shortened vegetative shoots with 1-6 leaves o f the previous year o f

life. The greatest number o f generative shoots, 78 and 60 %, with a high rate o f inflores

cences was formed from a shortened vegetative shoots summer-autumn tillering, having

before going into winter four and five leaves. Their seed production on 37-46 % exceeded

the similar indicator shoots with three leaves and 3.4-3.6 times two. From a shortened

vegetative shoots with two leaves for the next year only 15 % went to the generative phase.

It has been found that technology cultivation awnless brome varieties Voronezh 17 to limit

the buildup o f too much vegetative mass to the end o f the growing season and create more

favorable conditions for the formation o f seed yield in case o f active late summer growth

o fplants appropriate for the mowing seed mixtures in the period from 10 to 30 August.

Keywords:

smooth brome, hybrid variety, shootformation, mowing, yield, seed.

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