Grass seed mixes

2021 ◽  
pp. 148-151
Author(s):  
Siobhan Vernon ◽  
Susan Irwine ◽  
Joanna Patton ◽  
Neil Chapman
Keyword(s):  
Grass Seed

Herbicides and Their Effect on the Yield of Grass Seed 1

1965 ◽  
Vol 57 (6) ◽  
pp. 633-634 ◽  
Author(s):  
Dwight V. Peabody ◽  
H. M. Austenson
Keyword(s):  
Grass Seed

Effects of Nitrogen Fertilization and Rate and Method of Seeding on Grass Seed Yields in Pennsylvania 1

1955 ◽  
Vol 47 (12) ◽  
pp. 559-563 ◽  
Author(s):  
Roderic E. Duller ◽  
J. S. Bubar ◽  
H. R. Fortmann ◽  
H. L. Carnahan
Keyword(s):  
Nitrogen Fertilization ◽  
Grass Seed ◽  
Seed Yields

scholarly journals Effects of Irrigation and Nitrogen Fertilization on Seed Yield, Yield Components, and Water Use Efficiency of Cleistogenes songorica

Agronomy ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 466
Author(s):  
Qibo Tao ◽  
Mengjie Bai ◽  
Cunzhi Jia ◽  
Yunhua Han ◽  
Yanrong Wang
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Seed Yield ◽  
Yield Components ◽  
Perennial Grass ◽  
Yield Component ◽  
Path Coefficient ◽  
Grass Seed ◽  
Significant Difference ◽  
Use Efficiency

Irrigation and nitrogen (N) are two crucial factors affecting perennial grass seed production. To investigate the effects of irrigation and N rate on seed yield (SY), yield components, and water use efficiency (WUE) of Cleistogenes songorica (Roshevitz) Ohwi, an ecologically significant perennial grass, a four-year (2016–2019) field trial was conducted in an arid region of northwestern China. Two irrigation regimes (I1 treatment: irrigation at tillering stage; I2 treatment: irrigation at tillering, spikelet initiation, and early flowering stages) and four N rates (0, 60, 120, 180 kg ha−1) were arranged. Increasing amounts of both irrigation and N improved SY, evapotranspiration, WUE, and related yield components like fertile tillers m−2 (FTSM) and seeds spikelet−1. Meanwhile, no significant difference was observed between 120 and 180 kg N ha−1 treatments for most variables. The highest SY and WUE was obtained with treatment combination of I2 plus 120 kg N ha−1 with four-year average values of 507.3 kg ha−1 and 1.8 kg ha−1 mm−1, respectively. Path coefficient and contribution analysis indicated that FTSM was the most important yield component for SY, with direct path coefficient and contribution coefficient of 0.626 and 0.592. Overall, we recommend I2 treatment (three irrigations) together with 120 kg N ha−1 to both increase SY and WUE, especially in arid regions. Future agronomic managements and breeding programs for seed should mainly focus on FTSM. This study will enable grass seed producers, plant breeders, and government program directors to more effectively target higher SY of C. songorica.

Effect of method and time of application of nitrogen fertiliser on yield and quality of seed of creeping red fescue

2000 ◽  
Vol 80 (4) ◽  
pp. 809-811 ◽  
Author(s):  
N. A. Fairey ◽  
L. P. Lefkovitch
Keyword(s):  
Seed Production ◽  
Seed Yield ◽  
Seed Quality ◽  
Early Spring ◽  
Festuca Rubra ◽  
Grass Seed ◽  
Red Fescue ◽  
Time Of Application ◽  
Vigorous Plant ◽  
Tiller Density

Six trials were conducted on commercial seed fields of creeping red fescue (Festuca rubra L. var. rubra) in the Peace region to evaluate the sensitivity of seed production to the method and time of application of N fertiliser. In each trial, 68 kg ha−1 N was applied using three methods (surface-broadcast, granular, ammonium nitrate 34-0-0; foliar/soil spray of 28-0-0 solution N; soil-injected 28-0-0 solution N) at each of three times (fall, early spring, late spring). No statistically significant (P = 0.05) interaction, or main effect, of method and time of N were revealed for seed yield, fertile tiller density or for several seed quality characteristics. Seed yield varied greatly among trials (142 to 1240 kg ha−1) and averaged 566 kg ha−1. The results indicate that there is considerable flexibility in the method and time of application of N fertiliser for seed production of creeping red fescue in the Peace region, provided it is applied before the commencement of vigorous plant growth in the spring. Key words: Creeping red fescue, Festuca rubra L., nitrogen fertility, grass seed production, grass seed quality

Endophyte in New Zealand ryegrass pastures, an overview

1999 ◽  
Vol 7 ◽  
pp. 1-9
Author(s):  
H.S. Easton
Keyword(s):  
New Zealand ◽  
Adverse Effects ◽  
Environmental Influences ◽  
Pest Resistance ◽  
Plant Age ◽  
Grass Seed ◽  
Neotyphodium Lolii ◽  
Grassland Productivity ◽  
Different Parts

Ryegrass pastures in New Zealand are usually infected with the ryegrass endophyte (Neotyphodium lolii). The endophyte provides protection from invertebrate attack, discourages overgrazing by livestock and perhaps confers other advantages enhancing ryegrass persistence. The endophyte lifecycle is completed within the plant, and transmission is uniquely through the grass seed. Within the plant, the endophyte synthesises a range of compounds, some of which have been identified as responsible for known endophyte effects on pasture invertebrates and on livestock. The concentrations of these compounds vary in different parts of the plant, with plant age and in response to environmental influences. While endophyte has wellknown adverse effects on livestock (reviewed elsewhere in this volume), it contributes positively to grassland productivity in New Zealand. Keywords: endophyte, Lolium, Neotyphodium lolii, pest resistance, ryegrass

Estimation of Future Native Grass Seed Demand for Restoring Oil and Gas-Energy Sprawl in West Texas, USA

2020 ◽  
Vol 38 (4) ◽  
pp. 237-245
Author(s):  
Forrest S. Smith ◽  
Jon Paul Pierre ◽  
Michael H. Young ◽  
Dale A. Devitt
Keyword(s):  
Oil And Gas ◽  
Native Grass ◽  
Grass Seed ◽  
West Texas

Problems of amenity grass seed production in New Zealand

1980 ◽  
Vol 1 ◽  
pp. 26-30
Author(s):  
L. Corkill ◽  
W. Rumball
Keyword(s):  
New Zealand ◽  
The Netherlands ◽  
Seed Production ◽  
Direct Selection ◽  
Usual Practice ◽  
Grass Seed ◽  
Breeding Management ◽  
Selection For ◽  
Seed Yields ◽  
Selection Of

The problems of seed production of amenity grasses in New Zealand are considered from two aspects - (a) increasing seed potential by breeding; (b) achieving that potential by good management as practised in the Netherlands, (a) In terms of breeding, the strategies to increase seed yield depended to some degree on the species concerned. With browntop it was necessary to discard about two-thirds of the most promising genotypes because of poor heading, but the remaining genotypes flowered freely and in unison, and gave good seed yields. With fescue even the best original plants were sparsely heading, so direct selection for prolificacy has been needed. This was also carried out for perennial ryegrass, as well as selection of early-heading genotypes to avoid infection by stem rust. (b) It is suggested that areas for seed of amenity grasses in New Zealand should be used for seed production only rather than for both forage and seed as is the usual practice. Techniques used in the Netherlands could serve as guidelines to procedures. The implications of low seeding rates, good weed control, high fertilizer applications and minimum cutting or grazing in promoting strong individual plants capable of high seed yields are discussed. Keywords: Amenity grass, seed production, New Zealand, breeding, management, Netherlands, Agrostis tenuis, Festuca rubra, Lolium perenne

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