scholarly journals Evaluation of recurrent selection for drought tolerant tall fescue ( Festuca arundinacea ) using rain‐out shelters

2021 ◽  
Author(s):  
Yuanshuo Qu ◽  
Edwin J. Green ◽  
Stacy A. Bonos ◽  
William A. Meyer
Keyword(s):  
Tall Fescue ◽  
Festuca Arundinacea ◽  
Recurrent Selection ◽  
Drought Tolerant ◽  
Selection For

Selection for resistance to Cochliobolus sativus in tall fescue (Festuca arundinacea Schreb.)

1986 ◽  
Vol 72 (6) ◽  
pp. 807-810 ◽  
Author(s):  
M. A. Smith ◽  
C. E. Watson ◽  
S. D. Linscombe ◽  
L. E. Trevathan
Keyword(s):  
Tall Fescue ◽  
Festuca Arundinacea ◽  
Cochliobolus Sativus ◽  
Selection For

AC Graze tall fescue (Festuca arundinacea Schreb.)

1993 ◽  
Vol 73 (3) ◽  
pp. 843-844
Author(s):  
A. R. McElroy
Keyword(s):  
Key Words ◽  
Tall Fescue ◽  
Festuca Arundinacea ◽  
Research Centre ◽  
Mass Selection ◽  
Forage Crop ◽  
Plant Research ◽  
Forage Type ◽  
Selection For

AC Graze, tested as Syn-A, is a late-maturing forage-type tall fescue (Festuca arundinacea Schreb.) cultivar. It was developed by mass selection for vigor, persistence, leafiness and uniform maturity at the Plant Research Centre, Agriculture Canada, Ottawa. AC Graze yielded 105.3% of the test mean (seven cultivar, six station years) in Ontario Forage Crop Committee trials. Key words: Tall fescue, Festuca arundinacea Schreb.

Increasing endophyte alkaloid expression in tall fescue by selecting for increased endophyte hyphal density

2007 ◽  
pp. 197-200
Author(s):  
M.G. Norriss ◽  
T.J. Frost-Smith ◽  
J.I.M. Sutherland
Keyword(s):  
Tall Fescue ◽  
Festuca Arundinacea ◽  
Fungal Endophytes ◽  
Leaf Sheath ◽  
The Other ◽  
Apparent Correlation ◽  
Hyphal Density ◽  
Selection For ◽  
Breeding Pool ◽  
Hyphal Mass

Two AR542-endophyte infected tall fescue breeding pools were subjected to one cycle of selection for increased endophyte hyphal density. Hyphal density was assessed subjectively by microscopic examination of the leaf sheath. Levels of alkaloids produced by both the original and selected populations were subsequently measured during summer. Levels of lolines and peramine alkaloids increased significantly in one breeding pool (by 40% and 29%, respectively), with non-significant increases (by 24% and 2%) in the other breeding pool. The apparent correlation between observed hyphal density and levels of alkaloids supports the hypothesis that levels of lolines and peramine produced by fungal endophytes in their host grass are at least partly due to endophyte hyphal mass in the host sheath tissue. Measured lolines in one breeding pool were 21 times greater than the other, while sheath hyphal density was less. Possible explanations include contrasting patterns of hyphal colonisation beyond the sheath, and/or variation in the quantity of lolines produced per unit hyphal mass. Keywords: Neotyphodium coenophalium, endophyte, Festuca arundinacea, tall fescue, peramine, lolines, hyphal mass

Selection for seedling vigour in Festuca arundinacea

1982 ◽  
Vol 99 (1) ◽  
pp. 173-184 ◽  
Author(s):  
J. S. Faulkner ◽  
Fiona Johnston ◽  
D. M. P. McAneney
Keyword(s):  
Tall Fescue ◽  
Festuca Arundinacea ◽  
Leaf Length ◽  
Parent Material ◽  
Direct Selection ◽  
Seedling Vigour ◽  
Basic Criterion ◽  
Selection For ◽  
Seed Provenance ◽  
Hydroponic Growth

SUMMARYTwo sets of experiments were carried out to compare methods of selecting Festuca arundinacea (tall fescue) for improved seedling vigour.In the first, germination and seedling growth of four varieties (Goar, Lironde, S. 170, and ZW 42–6) were compared in hydroponic growth tanks. From each variety, groups of seedlings were selected for each of four vigour characters (speed of germination, leaf length, root length and speed of production of the second leaf) and a fifth group was selected at random as a control. Plants of each group were intercrossed in isolation and their progeny compared.In the second, S. 170 was studied through two cycles of selection in a soil-based compost. In the first cycle, groups of seedlings were selected for each of five characters (speed of emergence, leaf length, and speed of production of the second leaf, first axillary tiller and coleoptile tiller). Two further groups were selected randomly. In the second cycle, the progeny of each group were reselected for the same character as their parents. Both first- and second-cycle progeny were compared among themselves.Significant direct responses to selection were obtained in all characters except speed of germination in hydroponics. Indirect responses also occurred but were mostly smaller and in response to selection for a related character, e.g. selection for early tillering resulted in early second leaves and vice versa. Two cycles of selection raised the frequency of coleoptile tillers from about 5 to 55 %, but the concomitant advances in vigour characters were smaller than those achieved by direct selection. It is argued that for practical purposes the basic criterion in selecting for improved seedling vigour should be rapid attainment of a particular growth stage such as appearance of the first tiller. Since speed of emergence itself responded to selection, the attainment of such a stage should be related to date of sowing rather than of emergence or germination.In the progeny of the hydroponic selections, all characters showed significant varietal differences, some of them the reverse of differences between the parent populations of the varieties. These results illustrated the importance of seed provenance as a determinant of seedling vigour, and suggest that choice of parent material is important in breeding for improved vigour.

scholarly journals On-farm establishment of drought-tolerant pastures on the east coast of the North Island

1993 ◽  
pp. 33-38
Author(s):  
D.R. Smith ◽  
M.W.A. Slay ◽  
M.H. Gray ◽  
G.D. Milne
Keyword(s):  
Tall Fescue ◽  
Festuca Arundinacea ◽  
East Coast ◽  
Red Clover ◽  
Perennial Grasses ◽  
The North ◽  
Drought Tolerant ◽  
Low Levels ◽  
On Farm ◽  
Clover Content

Seedling and tiller core measurements on 60 paddocks sown in autumn 1991 on the East Coast of the North Island were made to monitor the success of new pastures based on drought-tolerant grasses. Pastures sown into cultivated seedbeds were generally more successful than direct-drilled pastures, having higher content of sown species and less competition from volunteer perennial grasses. In paddocks sown with mixtures of tall fescue and Grasslands Wana cocksfoot, cocksfoot was becoming the dominant,grass, except in areas of paddocks with poor drainage. Cocksfoot establishment in oversown pastures was good, but tall fescue in these paddocks declined to low levels 19 months after sowing. White clover was well established in all classes of pasture, despite relatively low initial seedling numbers in direct drilled and oversown paddocks. In contrast, red clover content declined, particularly in directdrilled and oversown paddocks. Keywords: Dactylis glomerata, direct drilling, Festuca arundinacea, pasture establishment, Phalaris aquatica, oversowing

Isolation and identification of plant growth-promoting bacteria associated with tall fescue

2009 ◽  
pp. 211-216 ◽  
Author(s):  
J. Monk ◽  
E. Gerard ◽  
S. Young ◽  
K. Widdup ◽  
M. O'Callaghan
Keyword(s):  
New Zealand ◽  
Plant Growth ◽  
Tall Fescue ◽  
Festuca Arundinacea ◽  
Plant Growth Promoting Bacteria ◽  
Beneficial Bacteria ◽  
Isolation And Identification ◽  
Naturally Occurring ◽  
Plant Growth Promoting ◽  
Growth Promoting

Tall fescue (Festuca arundinacea) is a useful alternative to ryegrass in New Zealand pasture but it is slow to establish. Naturally occurring beneficial bacteria in the rhizosphere can improve plant growth and health through a variety of direct and indirect mechanisms. Keywords: rhizosphere, endorhiza, auxin, siderophore, P-solubilisation

THE PERFORMANCE OF S170 TALL FESCUE IN CANTERBURY

1974 ◽  
pp. 214-215
Author(s):  
B.R. Watkin
Keyword(s):  
New Zealand ◽  
White Clover ◽  
Tall Fescue ◽  
Trifolium Repens ◽  
Festuca Arundinacea ◽  
Sheep Grazing ◽  
Selection Of

AN Aberystwyth selection of tall fescue (Festuca arundinacea Schreb.), known as S170, was sown with certified New Zealand white clover (Trifolium repens) and re' clover (T. pratense) and compared under sheep grazing with other grass/clover pastures at the Grasslands Division Regional Station at Lincoln (Watkin, 1975) .

Improvement of effectiveness in maize breeding

2006 ◽  
Vol 54 (3) ◽  
pp. 351-358 ◽  
Author(s):  
P. Pepó
Keyword(s):  
Recurrent Selection ◽  
Genetic Manipulation ◽  
Field Testing ◽  
Tissue Cultures ◽  
Maize Breeding ◽  
Breeding Programmes ◽  
Speed Up ◽  
Selection For

Plant regeneration via tissue culture is becoming increasingly more common in monocots such as maize (Zea mays L.). Pollen (gametophytic) selection for resistance to aflatoxin in maize can greatly facilitate recurrent selection and the screening of germplasm for resistance at much less cost and in a shorter time than field testing. In vivo and in vitro techniques have been integrated in maize breeding programmes to obtain desirable agronomic attributes, enhance the genes responsible for them and speed up the breeding process. The efficiency of anther and tissue cultures in maize and wheat has reached the stage where they can be used in breeding programmes to some extent and many new cultivars produced by genetic manipulation have now reached the market.

Allelopathic effects of Bermuda grass (Cynodon dactylon L.) root exudates on seed germination and seedling growth of Tall fescue (Festuca arundinacea Schreb)

2018 ◽  
Vol 44 (1) ◽  
pp. 25-34
Author(s):  
Z.Y. Liang ◽  
X.Y. Li ◽  
H. Zhang ◽  
J. Li ◽  
X.J. Bian ◽  
...  
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Root Exudates ◽  
Tall Fescue ◽  
Festuca Arundinacea ◽  
Cynodon Dactylon ◽  
Bermuda Grass ◽  
Allelopathic Effects

Effects of Two Cycles of Recurrent Selection for Combining Ability in an Open‐Pollinated Variety of Corn 1

1955 ◽  
Vol 47 (7) ◽  
pp. 319-323 ◽  
Author(s):  
D. P. McGill ◽  
J. H. Lonnquist
Keyword(s):  
Combining Ability ◽  
Recurrent Selection ◽  
Selection For
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