INHERITANCE OF A VIRESCENT TRAIT IN BROMUS INERMIS

1978 ◽  
Vol 20 (4) ◽  
pp. 499-503 ◽  
Author(s):  
G. M. Dunn ◽  
H. Z. Lea
Keyword(s):  
Bromus Inermis ◽  
Virescent Mutant

The genetics of a virescent mutant was investigated in Bromus inermis Leyss. The trait was inherited as a single, tetrasomic recessive. Selfing the original mutant resulted in 4755 virescent:21 green seedlings when grown at 15 °C. From the data it was concluded that the mutant was homozygous for the virescent gene and that the occasional green, selfed seedlings probably arose by outcrossing.

POLLEN CONTAMINATION OF BROMEGRASS (Bromus inermis Leyss.) IN THE GREENHOUSE

1981 ◽  
Vol 61 (3) ◽  
pp. 741-744 ◽  
Author(s):  
G. M. DUNN ◽  
H. Z. LEA
Keyword(s):  
Female Parent ◽  
Bromus Inermis ◽  
Pollen Contamination ◽  
Normal Green ◽  
Virescent Mutant ◽  
Spatial Isolation ◽  
Pollen Distribution

Contamination of bromegrass (Bromus inermis Leyss.) by wind-blown pollen was measured in the greenhouse using a homozygous recessive virescent mutant as the female parent. Pollen distribution was enhanced by manual shaking of male parents and by use of a fan. In previous tests, the mutant produced less than 0.005% normal green seedlings upon selfing. In this trial, green seedlings averaged 81.1, 40.8, 13.1, 6.9 and 1.1% among the progenies of the mutant when it was grown at 0, 1.5, 3.0, 4.5 and 7.5 m, respectively, from normal green parents. We conclude that satisfactory spatial isolation of several groups of bromegrass clones for breeding can be readily obtained in a greenhouse.

Productivity of the forage of perennial grasses and their mixtures on drained peatlands

2016 ◽  
Vol 2 (91) ◽  
pp. 74-79
Author(s):  
V.H. Kurhak ◽  
M.I. Shtakal ◽  
V.M. Shtakal
Keyword(s):  
Dactylis Glomerata ◽  
Dry Weight ◽  
Phleum Pratense ◽  
Bromus Inermis ◽  
Metabolizable Energy ◽  
Perennial Grasses ◽  
Forest Steppe ◽  
Left Bank ◽  
Peat Soils ◽  
High Productivity

There showed the productivity, chemical composition of feed and the timing of mowing of grass and variety mixes of permanent grasses on drained peat soils of Left Bank Forest-Steppe of Ukraine. The presence of early rip­ ened seeded grass provides a uniform supply use mowed mass from middle May until the end of September and the productivity of lands, which ranges from 10 to 14 t/ha of dry weight, metabolizable energy – 100.0 – 130.0 GJ and feed units 7-11 t/ha. Additional manuring of N90 on the background Р45К120 is effective at the start of second year of use. On the organization of hay conveyors of different ripening time herbages is possible to extend the optimal tim­ ing of mowing of green mass to 25-35 days. Best among the early-maturing grass crops are Dactylis glomerata va­ riety Kyivska rannia-1 with Alopecurus pratensis variety Sarnenskiy ranniy or its mixture with Bromus inermis and Festuca pratensis. With medium ripening – pure sowing eastern fescue of variety Lyudmila, Phalaris arundinacea variety Sarnenski-40, Bromus inermis variety Arsen and their compounds. High productivity of late-ripening herb­ age is provided by the inclusion in the composition of grass mixtures of Phleum pratense L. variety Vyshgorodska and Dactylis glomerata of variety Ukrainka, and Agrostis gigantea Roth variety Sarnenska piznia. It is also possible organization hay conveyors of different ripening varieties of Dactylis glomerata varieties Kyivska rannia, Muravka, Ukrainka.

Some Characteristics of Mutual Pollination Progenies of Bromus inermis 1

Crop Science ◽  
1970 ◽  
Vol 10 (1) ◽  
pp. 17-19 ◽  
Author(s):  
P. N. Drolsom ◽  
E. L. Nielsen
Keyword(s):  
Bromus Inermis

Effects of Temperature and Photoperiod on a Virescent Mutant in Smooth Bromegrass1

Crop Science ◽  
1973 ◽  
Vol 13 (1) ◽  
pp. 69 ◽  
Author(s):  
G. M. Dunn ◽  
E. J. Ketel ◽  
D. G. Routley ◽  
R. M. Couture
Keyword(s):  
Virescent Mutant ◽  
Effects Of Temperature

Breeding for Seed Yield and Seed Quality in Smooth Bromegrass, Bromus inermis Leyss . 1

Crop Science ◽  
1970 ◽  
Vol 10 (5) ◽  
pp. 539-542 ◽  
Author(s):  
R. P. Knowles ◽  
D. A. Cooke ◽  
E. Buglass
Keyword(s):  
Seed Yield ◽  
Seed Quality ◽  
Bromus Inermis ◽  
Smooth Bromegrass
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