Kentucky Bluegrass Cultivar Root and Top Growth Responses When Grown in Hydroponics

Crop Science ◽  
2002 ◽  
Vol 42 (3) ◽  
pp. 848 ◽  
Author(s):  
K. S. Erusha ◽  
R. C. Shearman ◽  
T. P. Riordan ◽  
L. A. Wit
Keyword(s):  
Kentucky Bluegrass ◽  
Growth Responses

Growth responses of Kentucky bluegrass (Poa pratensis L.) to trinexapac-ethyl applied in spring and autumn

2009 ◽  
Vol 3 (2) ◽  
pp. 186-189 ◽  
Author(s):  
Guangyu Fan ◽  
Xiuju Bian ◽  
Huibin Li ◽  
Zhao Meng ◽  
Shengyao Liu
Keyword(s):  
Poa Pratensis ◽  
Kentucky Bluegrass ◽  
Growth Responses

scholarly journals Growth Responses of Hybrid Bluegrass and Tall Fescue as Influenced by Light Intensity and Trinexapac-ethyl

HortScience ◽  
2015 ◽  
Vol 50 (8) ◽  
pp. 1241-1247 ◽  
Author(s):  
Meghyn Meeks ◽  
Ambika Chandra ◽  
Ben G. Wherley
Keyword(s):  
Tall Fescue ◽  
Festuca Arundinacea ◽  
Poa Pratensis ◽  
Block Design ◽  
Kentucky Bluegrass ◽  
Late Spring ◽  
Healthy Plant ◽  
Growth Responses ◽  
Leaf Elongation ◽  
Turfgrass Quality

Interspecific hybrids between texas bluegrass (Poa arachnifera Torr.) and kentucky bluegrass (Poa pratensis L.) are known to exhibit good heat tolerance, which has aided in their adaptation to the warmer climates of the southern United States, but their tolerance to shade has not been investigated. The objectives of this study were to 1) evaluate the growth responses of interspecific bluegrass hybrids (P. arachnifera × P. pratensis) in comparison with kentucky bluegrasses and a shade-tolerant cultivar of tall fescue (Festuca arundinacea Schreb.) under full sunlight and shaded environments, 2) identify optimum times to evaluate shade tolerance using the selected growth measurements, 3) calculate the minimum daily light requirements to retain acceptable turfgrass quality, and 4) determine if trinexapac-ethyl (TE) applications enhance hybrid bluegrass quality under shade. Two 10-week greenhouse experiments (late spring and early fall) were conducted in Dallas, TX. Within each of three light environments a randomized complete block design was used to accommodate three replications of eight genotypes treated with and without TE (0 or 0.228 kg·ha−1 a.i.). Turfgrass quality, leaf elongation rates, clipping dry weights, and percent green cover were measured. Meaningful comparisons were best during the late spring when daily light integrals (DLI) were optimum for healthy plant growth. Shade-tolerant hybrid bluegrasses (DALBG 1201 and TAES 5654) were identified using turfgrass quality and leaf elongation rates. These genotypes exhibited above-acceptable turfgrass quality in all environments, and a reduced leaf elongation rate similar to the tested dwarf-type tall fescue. DLI requirements of DALBG 1201 and TAES 5654 were ≤4 to achieve acceptable quality. TE applications generally did not improve turfgrass quality of genotypes, although leaf elongation rates were significantly reduced in all environments.

Kentucky Bluegrass Cultivar Root and Top Growth Responses When Grown in Hydroponics

Crop Science ◽  
2002 ◽  
Vol 42 (3) ◽  
pp. 848-852 ◽  
Author(s):  
K. S. Erusha ◽  
R. C. Shearman ◽  
T. P. Riordan ◽  
L. A. Wit
Keyword(s):  
Kentucky Bluegrass ◽  
Growth Responses

Kentucky Bluegrass Growth Responses to Trinexapac-Ethyl, Traffic, and Nitrogen

Crop Science ◽  
2001 ◽  
Vol 41 (6) ◽  
pp. 1871-1877 ◽  
Author(s):  
E. H. Ervin ◽  
A. J. Koski
Keyword(s):  
Kentucky Bluegrass ◽  
Growth Responses

scholarly journals Turfgrass Monoculture, Cool-Cool, and Cool-Warm Season Seed Mixture Establishment and Growth Responses

HortScience ◽  
2004 ◽  
Vol 39 (7) ◽  
pp. 1732-1735 ◽  
Author(s):  
Hassan Salehi ◽  
Morteza Khosh-Khui
Keyword(s):  
Root Growth ◽  
Chlorophyll Content ◽  
Warm Season ◽  
Dry Weight ◽  
Kentucky Bluegrass ◽  
Rooting Depth ◽  
Growth Responses ◽  
Seed Mixture ◽  
Tiller Density ◽  
Seed Mixtures

Turfgrass seeds can be sown individually, in mixes, or overseeded to provide green color and uniform surfaces in all the seasons. This investigation was conducted to compare different turfgrass species and their seed mixtures. In this research, the turfgrasses—perennial ryegrass (Lolium perenne L. `Barball'), kentucky bluegrass (Poa pratensis L. `Merion'), common bermudagrass (Cynodon dactylon [L.] Pers.), and strong creeping red fescue (Festuca rubra L. var. rubra `Shadow')—in monoculture or in mixtures of 1:1 (by weight) and a 1:1:1:1 (by weight) and two sport turfgrasses—BAR 11 (Barenbrug Co.) and MM (Mommersteeg Co.)—were used. The seeds were sown in March and October (spring and fall sowing) in 1998 and 1999. The experiments were conducted in a split-split block design with year as main plot, sowing season as subplot, and turfgrass types as subsubplot. The turfgrasses were compared by measuring visual quality, chlorophyll index after winter and summer, rooting depth, verdure and/or root fresh and dry weight, tiller density, and clippings fresh and dry weight. Fall sowing was superior to spring sowing and resulted in greater root growth, clipping yield, and chlorophyll content. Poa+Cynodon seed mixture was the best treatment and had high tiller density, root growth, and chlorophyll content. Lolium and Festuca monocultures, and Poa+Festuca and Cynodon+Festuca seed mixtures were not suitable with regard to low tiller density, sensitivity to high temperatures, low root growth, and low tiller density, respectively. The cool-warm-season seed mixture (Poa+Cynodon) can be used alternatively in overseeding programs in the areas with soil and environmental conditions similar to this research site.

MICROPROPAGATION OF CHICKPEA FROM SHOOT TIP AND NODE SEGMENT

2018 ◽  
Vol 24 (2) ◽  
Author(s):  
J. D. BARSHILE
Keyword(s):  
Shoot Tip ◽  
Root Induction ◽  
Multiple Response ◽  
Ms Medium ◽  
Growth Responses ◽  
Rapid Multiplication ◽  
Micro Propagation ◽  
G 12 ◽  
Better Than

Present investigation was undertaken to standardize technique for in vitro micro-propagation of chickpea( Cicer arietinum ) cultivar Vishwas (Phule G 12). Micropropagation method for chickpea was established and this method enabled much more efficient propagation of plants. The present work was aimed at evolving a protocol for rapid multiplication of chickpea using micropropagation technique. Explants from shoot tip and node segment were cultured on MS medium supplemented with different concentrations of BAP and Kinetin (1.0 to 2.5 mg/l) and their growth responses like shooting were elucidated. The maximum multiple response was observed with 2 mg/l concentration of BAP from both types of explant. The highest number of shoots (12.5 ± 0.3) was achieved on MS medium with 2 mg/l BAP using node segments. The medium supplemented with 2 mg/l of BAP was found better than all other concentrations. Individual shoots were transferred to IBA and IAA (1.0-1.5 mg/l) for root induction. MS medium supplemented with 2 mg/l of IBA proved better for rooting. Rooted plantlets were successfully hardened in greenhouse and established in the pot.

ALTERNATIVE P-FERTILISERS FOR NORTHLAND SOILS

1986 ◽  
pp. 229-232
Author(s):  
P.W. Shannon
Keyword(s):  
Phosphate Rock ◽  
Growth Responses ◽  
Triple Superphosphate ◽  
Rock Phosphates ◽  
Distribution Costs ◽  
Phosphate Retention ◽  
Sechura Phosphate Rock ◽  
Local Product ◽  
Application Frequency ◽  
Chatham Rise Phosphorite

Increasing material, processing, and distribution costs have raised superphosphate prices to a point where many farms cannot support the costs of meeting maintenance phosphate requires men& Alternatives to superphosphate, particularly those that have lower processing costs and contain more P, may offer a solution to the problem provided they are agronomically as effective. Phosphate rock may indeed be such an alternative. Preliminary results from a series of five trials in Northland show that on soils of moderate P fertility, with low phosphate retention (PR) and high pH (5.9.6.0), initial pasture growth responses to rock phosphates are smaller than those from single or triple superphosphate. On one soil of higher PR and lower pH, the differences in yield between the rock-phosphates and the super. phosphates were smaller. Of the rock phosphates tested, Sechura and North Carolina (unground and ungranulated) tended to be more effective than ground and granulated Chatham Rise phosphorite. The effect on production of applying fertilisers once every three years, as opposed to annual applications is being investigated using triple superphosphate and Sechura phosphate rock. After two years, production levels appear largely unaffected by differences in application frequency. A comparison of locally-produced superphosphate with a reference standard showed that both performed similarly, indicating that the local product was of satisfactory quality.

Comparison of Growth Responses of 2-Day-Old Pigs to Streptomycin, Aureomycin, and Crude APF, Alone and in Combination with B12

1952 ◽  
Vol 11 (1) ◽  
pp. 97-102 ◽  
Author(s):  
B. E. Sheffy ◽  
R. H. Grummer ◽  
P. H. Phillips ◽  
G. Bohstedt
Keyword(s):  
Growth Responses
Sign in / Sign up

Export Citation Format

Share Document