The growth of Yellow Bells (Geleznowia verrucosa) seedlings in response to additions of nitrogen, potassium and phosphorus fertiliser

1998 ◽  
Vol 38 (4) ◽  
pp. 385
Author(s):  
R. F. Brennan ◽  
A. M. Crowhurst ◽  
M. G. Webb
Keyword(s):  
Plant Growth ◽  
Western Australia ◽  
Growth Response ◽  
Shoot Growth ◽  
Native Plants ◽  
Dry Weight ◽  
Critical Concentrations ◽  
Phosphorus Fertiliser ◽  
N Fertilisers ◽  
Optimum Production

Summary. Native plants are increasingly grown in Western Australia to produce flowers for export. The nitrogen (N), phosphorus (P) and potassium (K) requirements for optimum production of one of these species, Geleznowia verrucosa (Yellow Bells), was measured for 17-week-old seedlings in a glasshouse experiment reported here. There was a significant (P<0.05) growth response to all levels of N fertilisers. At all levels of P and K, except for the nil K treatments, the lowest level of applied N (20 mg N/kg soil) gave the maximum dry weight of shoots. The dry weight of shoots increased with the addition of P fertiliser to the highest level (160 mg P/kg soil), particularly for the lower levels of applied K (0 and 30 mg/kg soil) and the lowest level of applied N (20 mg/kg soil). Combinations of high levels of P (P160) and N (N80) fertiliser severely depressed shoot growth. When applied at greater than 30 mg K/kg soil, K fertiliser depressed plant growth at all levels of N and P when compared with the lower levels of applied K. At the seedling stage of growth, critical concentrations for deficiency of both N and K were 1.3% in shoots. The critical concentrations for toxicity in whole shoots of Yellow Bells appeared to be about 1.7% for N and about 2.2% for K. Adequate concentrations of N were 1.4–1.5%, while 1.7% K appeared adequate for growth of Yellow Bell shoots.

Yellow lupin (Lupinus luteus) tolerates waterlogging better than narrow-leafed lupin (L. angustifolius) I. Shoot and root growth in a controlled environment

2000 ◽  
Vol 51 (6) ◽  
pp. 701 ◽  
Author(s):  
C. L. Davies ◽  
D. W. Turner ◽  
M. Dracup
Keyword(s):  
Root Growth ◽  
Western Australia ◽  
Shoot Growth ◽  
Dry Weight ◽  
Lupinus Luteus ◽  
Controlled Environment ◽  
Yellow Lupin ◽  
Legume Crop ◽  
Leaf Dry Weight ◽  
Better Than

We studied the adaptation of narrow-leafed lupin (Lupinus angustifolius) and yellow lupin (L. luteus) to waterlogging because yellow lupin may have potential as a new legume crop for coarse-textured, acidic, waterlogging-prone areas in Western Australia. In a controlled environment, plants were waterlogged for 14 days at 28 or 56 days after sowing (DAS). Plants were more sensitive when waterlogged from 56 to 70 DAS than from 28 to 42 DAS, root growth was more sensitive than shoot growth, and leaf expansion was more sensitive than leaf dry weight accumulation. Waterlogging reduced the growth of narrow-leafed lupin (60–81%) more than that of yellow lupin (25–56%) and the response was more pronounced 2 weeks after waterlogging ceased than at the end of waterlogging. Waterlogging arrested net root growth in narrow-leafed lupin but not in yellow lupin, so that after 2 weeks of recovery the root dry weight of yellow lupin was the same as that of the control plants but in narrow-leafed lupin it was 62% less than the corresponding control plants. Both species produced equal amounts of hypocotyl root when waterlogged from 28 to 42 DAS but yellow lupin produced much greater amounts than narrow-leafed lupin when waterlogged from 56 to 70 DAS.

scholarly journals EFFECTS OF IRRIGATION FREQUENCY ON PLANT GROWTH AND NUTRIENT LEVELS OF PINE BARK MEDIA

HortScience ◽  
1990 ◽  
Vol 25 (8) ◽  
pp. 849c-849
Author(s):  
T.E. Bilderback
Keyword(s):  
Plant Growth ◽  
Shoot Growth ◽  
Chemical Properties ◽  
Dry Weight ◽  
Pine Bark ◽  
Growth Responses ◽  
Irrigation Frequency ◽  
Foliar Tissue ◽  
Physical And Chemical ◽  
And Chemical Properties

Ilex × `Nellie R. Stevens' holly, Rhododendron sp. `Hinodegeri' azalea and Pyracantha coccinea, scarlet firethorn rooted cuttings were potted in • 3.81 containers. Irrigation was applied by Dram rings daily, or every 2,4,or 6 days. Approximately 1000 ml of water were applied at each irrigation. Three container media, including pine bark, and pine bark amended with either Terra-Sorb AG synthetic moisture extender incorporated at 1.2 kg/m3 or Aqua-Gro G wetting agent incorporated at 0.9 kg/m3 plus monthly drenches of 700 ml of 2500 ppm Aqua-Gro L were compared for physical and chemical properties and plant growth responses. Decreasing irrigation decreased pH, increased nutrient leachate levels, and increased foliar tissue levels of N,P,K,Ca,and Fe in holly and azalea. Pyracantha top and root dry weight was reduced at 4 and 6 day irrigation intervals, holly top growth was reduced by 6 day and azalea had greatest shoot growth at 2 day irrigation and was reduced by other irrigation frequencies. Top growth of all 3 species and root growth of pyracantha was reduced in the pine bark treatment.

scholarly journals The growth response of pokem (Setaria italica L.) inoculated with arbuscular mycorrhizal fungi (AMF) from tailings area

2021 ◽  
Vol 8 (4) ◽  
pp. 2873-2880
Author(s):  
S Suharno ◽  
Retno Peni Sancayaningsih ◽  
Endang Sutariningsih Soetarto ◽  
Rina Sri Kasiamdari
Keyword(s):  
Plant Growth ◽  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Growth Response ◽  
Arbuscular Mycorrhizal ◽  
Dry Weight ◽  
Mining Area ◽  
Setaria Italica ◽  
Phosphorus Absorption ◽  
Randomized Design

The purpose of this research was to study the growth response of pokem (Setaria italica), which was inoculated by the arbuscular mycorrhizal fungi (AMF) from the tailings area. The method used in this research was a completely randomized design of factorial pattern. The factors consisted of AMF types (M)(M0: non-mycorrhizal, M1: Claroideoglomus etunicatum BGR, M2: C. lamellosum B1107S, M3: C. etunicatum L3101D), and inoculum density (I) (I: 5 g, II: 10 g per pot of planting media) with 8 replicates. The source of inoculum C. lamellosum B1107S and C. etunicatum L3101D originated from tailings in the gold mining area of Timika. The results showed that inoculation of C. etunicatum L3101D could increase the plant growth better than C. etunicatum BGR and C. lamellosum B1107S. Significant growth occurred on the parameters of the height of the plants, leaf area, dry weight and fresh weight of the plants, relative growth rate, and phosphorus absorption by the plants. The amount of nitrogen tended to decrease with AMF treatment, but it was not significant, whereas K has insiginificantly increased. The propagule density treatment increased plant growth on all parameters. The best growth occurred if the type C. etunicatum L3101D was inoculated with 10 g of propagule per planting media.

scholarly journals Growth Response of 13 Container-Grown Landscape Plants to Uniconazole

1990 ◽  
Vol 8 (3) ◽  
pp. 151-153
Author(s):  
Stuart L. Warren
Keyword(s):  
Growth Response ◽  
Shoot Growth ◽  
Foliar Application ◽  
Foliar Spray ◽  
Dry Weight ◽  
Experimental Plant ◽  
Growth Reduction ◽  
Ligustrum Lucidum ◽  
Shoot Dry Weight ◽  
Landscape Plants

Abstract Uniconazole, an experimental plant growth regulator, was applied as a foliar spray and a medium drench to 13 and 7 species, resp. Shoot dry weight was determined at 60, 90, and 120 days after treatment. Sixty days after treatment, shoot dry weight of no species was affected by uniconazole. At 90 and 120 days, shoot dry weight of all species, except golden privet (Ligustrum × vicaryi), Russian-olive (Elaeagnus angustifolia), and waxleaf privet (Ligustrum lucidum), decreased with increasing rates of uniconazole, regardless of method of application. Degree of growth reduction varied by species, rate, and method of application. For most species, uniconazole was effective in suppressing growth for 120 days. Generally greater reduction of shoot growth resulted from drench application compared to foliar application.

scholarly journals Utilization of MSW for Nursery Container Stock Production

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 794B-794
Author(s):  
Bert T. Swanson ◽  
James B. Calkins
Keyword(s):  
Plant Growth ◽  
Physical Properties ◽  
Plant Height ◽  
Growth Response ◽  
Dry Weight ◽  
First Year ◽  
Species Specific ◽  
Specific Species ◽  
Blue Chip

Five composted Municipal Solid Waste (MSW) (garbage) products and a composted manure were evaluated as container growing media components on eight woody and herbaceous plants. Plant growth response to the different composts and to the quality of compost used was species-specific. Media UM Manure 100 provided the greatest increase in plant height across all species during the first year. However, only one species, V. lentaga, actually ranked number one in UM Manure 100. J.h. `Blue Chip' and A. tuberosa both grew the tallest in Control I. The remaining five species grew tallest in five different media. Therefore, several amended media can provide increased plant height for specific species; however, the top three media for plant height across all species were: #1 UM Manure 100, #2 Prairieland 50, and #3 Pennington 50. Plant height was the lowest in Recomp 100 media. Pennington 50 provided the greatest increase in plant volume. Media producing the highest plant dry weights across all species were: #1 Prairieland 50, #2 Pennington 50 and #3 UM Manure 50. Plants grown in Recomp 100 had the lowest plant dry weight. Media physical properties such as media drainage and aeration were affected by amendment quality and quantity.

Plant Growth Response to Several Allelopathic Chemicals

Weed Science ◽  
1983 ◽  
Vol 31 (3) ◽  
pp. 293-298 ◽  
Author(s):  
Nancy L. Shettel ◽  
Nelson E. Balke
Keyword(s):  
Growth Response ◽  
Shoot Growth ◽  
Dry Weight ◽  
Amaranthus Retroflexus ◽  
Panicum Miliaceum ◽  
Weed Species ◽  
Crop Species ◽  
Proso Millet ◽  
Redroot Pigweed ◽  
Shoot Dry Weight

Salicylic acid,p-hydroxybenzoic acid, caffeine, hydroquinone, and umbelliferone were evaluated in the greenhouse for their effects on shoot dry-weight accumulation of several crop and weed species. With the exception of caffeine, all the chemicals reduced shoot growth in oats (Avena sativaL. ‘Goodfield’). Chemicals applied preplant incorporated, preemergence, or postemergence were effective, depending upon the rate of chemical. When applied preplant incorporated at rates as high as 56.0 kg/ha, most of the chemicals reduced growth of corn (Zea maysL. ‘B73 × Mo17′), soybean [Glycine max(L.) Merr. ‘Corsoy’], velvetleaf (Abutilon theophrastiMedic.), redroot pigweed (Amaranthus retroflexusL.), and wild proso millet (Panicum miliaceumL.). Exceptions were caffeine on corn and soybean and hydroquinone on soybean. At 11.2 kg/ha the chemicals inhibited the weed species more than the crop species. Postemergence applications of caffeine and hydroquinone inhibited growth of the weed species more than the crop species. Hydroquinone at 1.1 kg/ha inhibited redroot pigweed, but rates as high as 11.2 kg/ha did not inhibit soybean. These experiments show that growth of agronomically important crops and weeds can be inhibited differentially by allelopathic chemicals.

Yield responses of mulla mulla (Ptilotus exaltatus Nees.) seedlings to additions of nitrogen, potassium and phosphorus fertiliser

2000 ◽  
Vol 40 (6) ◽  
pp. 867 ◽  
Author(s):  
R. F. Brennan ◽  
M. G. Webb ◽  
A. M. Crowhurst
Keyword(s):  
Shoot Growth ◽  
Critical Concentration ◽  
Dry Weight ◽  
Nutritional Requirement ◽  
Soil Potassium ◽  
Phosphorus Fertiliser ◽  
Phosphorus And Potassium ◽  
Yield Responses ◽  
Nitrogen Phosphorus ◽  
Growth Of Seedlings

Native plants are increasingly being grown in Western Australia to produce flowers for export and the nutritional requirement of some of these species is not known. The nitrogen, phosphorus and potassium requirements for optimum growth of seedlings of one such species, Ptilotus exaltatus Nees., were measured in the glasshouse experiment reported here. There was a significant (P<0.05) growth response to nitrogen fertilisers over the range 20–80 mg N/kg soil. At all amounts of phosphorus and potassium, except for the nil-phosphorus treatments, the largest amount of applied nitrogen (80 mg N/kg soil) gave the maximum dry weight of shoots. The dry weight of shoots increased with the addition of phosphorus fertiliser up to 40 mg P/kg soil, particularly with 60 mg potassium and 80 mg N/kg soil. The addition of 160 mg P/kg soil and 120 mg K/kg soil depressed shoot growth at 80 mg N/kg soil. Potassium fertiliser increased plant growth at amounts up to about 60 mg K/kg soil. At the seedling stage of growth, critical concentration in shoots for deficiency was about 1.5% for potassium, and 0.9% for phosphorus. Adequate concentrations in shoots were about 1.7–2.7% for potassium, and 1.0–1.6% for phosphorus.

scholarly journals Effects of Compost Amended Container Media on Ornamental Plant Growth

HortScience ◽  
2004 ◽  
Vol 39 (4) ◽  
pp. 750C-750
Author(s):  
Mark T.F. Highland* ◽  
Daniel C. Sclar ◽  
Elaine R. Ingham ◽  
Karen L. Gartley ◽  
James E. Swasey
Keyword(s):  
Plant Growth ◽  
Growth Response ◽  
C:N Ratio ◽  
Dry Weight ◽  
Control Treatment ◽  
Growth Responses ◽  
Growing Media ◽  
E Coli ◽  
Plant Growth Response ◽  
The Relationship

Compost has great potential for use in horticulture; however, the relationship between compost feedstock materials and resultant compost characteristics must be well understood. Research examining plant growth response from the addition of compost to container growing media is limited. This research had two parts: the first part examined the relationship between compost feedstock materials and resultant mature compost characteristics. The second part investigated plant growth responses when compost replaced the peat component of container growing media. Two feedstock treatments were aerobically composted in turned windrows. Compost characteristics examined include pH, EC, C:N Ratio, Solvita Maturity, and several biological characteristics (total and active bacteria, total and active fungi, protozoa, spore forming bacteria, E. coli O157:H7, and total coliformic bacteria). To examine plant growth response, compost was substituted for peat (from 0%-40% by total volume) in container growing media. Crops tested were Antirrhinum majus `Rocket White', Viola × wittrockiana `Crown Azure', Oriental Hybrid Lilium `Siberia', and Chrysanthemum × grandiflorum `Yellow Kodiak'. Quantitative plant growth response measurements (shoot fresh and dry weight, percent root necrosis, flower number, and flower size) were recorded and compared by treatment. Despite initial feedstock differences between the two compost treatments, both resulted in similar compost biology and species richness. Coliformic bacteria and E. coli O157:H7 levels were below detection limits in final compost. Choice of compost feedstock materials had a significant effect on the chemical characteristics of the finished product. Compost replacement for peat resulted in plant growth greater than or equal to those of the control treatment.

scholarly journals Ornamental Grass Growth Response to Three Shade Intensities

2000 ◽  
Vol 18 (1) ◽  
pp. 18-22
Author(s):  
James T. Cole ◽  
Janet C. Cole
Keyword(s):  
Plant Growth ◽  
Plant Height ◽  
Growth Response ◽  
Dry Weight ◽  
Imperata Cylindrica ◽  
Harvest Time ◽  
Root Dry Weight ◽  
Growing Seasons ◽  
Pennisetum Alopecuroides ◽  
Grass Growth

Abstract Growth of perennial quaking grass (Briza media L.), ‘Red Baron’ Japanese bloodgrass (Imperata cylindrica (L.) Beauv. ‘Red Baron’), river oats (Chasmanthium latifolium (Michx.) Yates), ‘Hameln’ dwarf fountain grass (Pennisetum alopecuroides (L.) Spreng. ‘Hameln’), and ‘Big Blue’ monkeygrass (Lirope muscari (Decne.) L.H. Bail. ‘Big Blue’) in 0%, 30%, or 60% shade was evaluated in container and in-ground experiments conducted over two growing seasons. Shade intensity did not affect plant height of any species grown in containers in 1997 or those grown in the ground that were planted and harvested in 1998. In 1997, width of containerized perennial quaking grass increased and width of containerized dwarf fountain grass decreased with increasing shade. In 1998, width of containerized Japanese bloodgrass increased and width of containerized dwarf fountain grass decreased with increased shade. Container-grown river oats shoot and root dry weight increased with shade intensity in 1998. Root to shoot (R/S) ratio decreased linearly with shade intensity for containerized river oats in 1997. Height of in-ground Japanese bloodgrass was not affected by shade intensity at any harvest time; however, height of perennial quaking grass increased and height of river oats and monkeygrass decreased as shade intensity increased regardless of harvest time. Few differences in plant width among shade treatments occurred for in-ground plants. Shoot dry weights for in-ground plants generally decreased with increasing shade intensity. Climatic differences may account for the variability in plant growth between the two years of the study.

Effect of rhizobacteria strains on the induction of resistance in barley genotypes against Cochliobolus sativus

2020 ◽  
Vol 13 (2) ◽  
pp. 83-92 ◽  
Author(s):  
A. Adam
Keyword(s):  
Plant Growth ◽  
Pseudomonas Putida ◽  
Growth Parameters ◽  
Disease Incidence ◽  
Dry Weight ◽  
Cochliobolus Sativus ◽  
Resistance Level ◽  
Wet Weight ◽  
Number Of Leaves ◽  
Barley Genotypes

SummaryEnhancement of the resistance level in plants by rhizobacteria has been proven in several pathosystems. This study investigated the ability of four rhizobacteria strains (Pseudomonas putida BTP1 and Bacillus subtilis Bs2500, Bs2504 and Bs2508) to promote the growth in three barley genotypes and protect them against Cochliobolus sativus. Our results demonstrated that all tested rhizobacteria strains had a protective effect on barley genotypes Arabi Abiad, Banteng and WI2291. However, P. putida BTP1 and B. subtilis Bs2508 strains were the most effective as they reduced disease incidence by 53 and 38% (mean effect), respectively. On the other hand, there were significant differences among the rhizobacteria-treated genotypes on plant growth parameters, such as wet weight, dry weight, plant height and number of leaves. Pseudomonas putida BTP1 strain was the most effective as it significantly increased plant growth by 15-32%. In addition, the susceptible genotypes Arabi Abiad and WI2291 were the most responsive to rhizobacteria. This means that these genotypes have a high potential for increase of their resistance against the pathogen and enhancement of plant growth after the application of rhizobacteria. Consequently, barley seed treatment with the tested rhizobacteria could be considered as an effective biocontrol method against C. sativus.

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