scholarly journals Growth of Norway and Sycamore Maple Taxa in Tennessee

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 812F-812
Author(s):  
W.T. Witte ◽  
R.J. Sauve ◽  
P.C. Flanagan
Keyword(s):  
Drip Irrigation ◽  
Height Growth ◽  
Single Plant ◽  
Growth Data ◽  
Sycamore Maple

Commercially available Norway and sycamore maple taxa were established as 10 single-plant replications in a cultivar trial at the TSU–NCRS in 1993 and Spring 1994. Each plant was fertilized regularly and drip irrigation was begun Summer 1993. Vegetation within tree rows was controlled with preemergent and postemergent herbicides, while grassed middles were mowed. Growth data was recorded in Fall 1993 and 1994 and height and caliper increment calculated for the 1994 season. In this group of 29 taxa, 9 cultivars were in the group with most height growth: `Columnare', `Pond', `Deborah', `Crystal', `Parkway', `Columnarbroad', `Schwedleri', `Summershade', and `Fairview'. With some exceptions, cultivars with the most height growth tended to have the most caliper growth, while those with the least height growth tended to have the least caliper growth, with the notable exception of `Columnar'. Data will also be presented on insect and disease ratings.

scholarly journals Growth of Silver Maple and Boxelder Taxa in Tennessee

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 812D-812
Author(s):  
W.T. Witte ◽  
R.J. Sauve ◽  
P.C. Flanagan
Keyword(s):  
Drip Irrigation ◽  
Height Growth ◽  
Early Summer ◽  
Single Plant ◽  
Growth Data ◽  
Acer Saccharinum ◽  
Intermediate Data ◽  
Silver Maple

Several commercially available Acer saccharinum and A. negundo taxa were established with 10 single-plant replications in a cultivar trial at the TSU–NCRS in 1993 and 1994. Each plant was fertilized in spring and early summer with 100 gm 15–15–15 beginning Summer 1993. Drip irrigation was applied as needed beginning Summer 1993. Vegetation within tree rows was controlled with preemergent and postemergent herbicides, while grassed middles were mowed. Growth data were recorded in Fall 1993 and 1994 and height and caliper increment calculated for the 1994 season. In the silver maple group with most height growth were: `Silver Queen', `Skinneri', and `Silver Pyramid'. These differed significantly from a group of four slower growing cultivars. Cultivars with the most height growth also had the most caliper growth. Seedling boxelder grew faster than one accession of `Flamingo', while three other cultivars were intermediate. Data will also be presented on insect and disease ratings.

scholarly journals Growth of Sugar Maple Taxa in Tennessee

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 812E-812
Author(s):  
W.T. Witte ◽  
R.J. Sauve ◽  
P.C. Flanagan
Keyword(s):  
Drip Irrigation ◽  
Related Species ◽  
Acer Saccharum ◽  
Sugar Maple ◽  
Height Growth ◽  
Single Plant ◽  
Growth Data ◽  
Closely Related Species ◽  
Group Of Seven

Commercially available Acer saccharum cultivars, and some closely related species accessions (floridanum, leucoderme, macrophyllum, and nigrum `Greencolumn'), were established as 10 single-plant replications in a cultivar trial at the TSU–NCRS in 1993 and Spring 1994. Plants were regularly fertilized and drip irrigation was begun Summer 1993. Growth data were recorded each fall and height and caliper increment calculated for the 1994 season. In the group with most height growth were: `Bonfire', `Majesty', nigrum `Greencolumn', leucoderme, `Sweet Shadow', `Fairview', and macrophyllum. These, except for `Fairview' and macrophyllum, differed significantly from a group of seven slower growing cultivars. With some exceptions, cultivars with the most height growth tended to have the most caliper growth, while those with the least height growth tended to have the least caliper growth. Data will also be presented on insect and disease ratings.

scholarly journals Fastest Growing Oaks in Species/Cultivars Trials at TSU-NCRS, McMinnville, Tenn.

HortScience ◽  
1996 ◽  
Vol 31 (4) ◽  
pp. 660f-660
Author(s):  
W.T. Witte ◽  
R.J. Sauve ◽  
P.C. Flanagan
Keyword(s):  
Drip Irrigation ◽  
Growth Increment ◽  
Height Growth ◽  
Single Plant ◽  
Growing Seasons ◽  
Species Hybrids

Eighty-one accessions of oak species, hybrids, and cultivars from commercially available sources were established at TSU-NCRS in Fall 1993 and Spring 1994, using 10 single-plant replications in a randomized complete block. Drip irrigation was begun on a regular basis May 1994, and plants were fertilized regularly. Height and diameter was recorded Fall 1994 and 1995. Fastest growing oaks in order of cm height growth increment over the two growing seasons were nigra, phellos, texana nuttalli, cerris, macrocarpa, falcata pagodaefolia, macrocarpa `Maximus', acutissima, austrina, shumardii, muehlenbergi, falcata, robur fastigiata, lyrata, virginiana, palustris, acutissima `Gobbler', glandulifera, macrocarpa `Ashworth', gambelli ×macrocarpa, alba. Most evergeen oaks did not survive Winter 1995–96, and data will be reported on winterkill.

scholarly journals Growth of Red Maple Taxa in Tennessee

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 812G-812
Author(s):  
W.T. Witte ◽  
R.J. Sauve ◽  
P.C. Flanagan
Keyword(s):  
Acer Rubrum ◽  
Height Growth ◽  
Red Maple ◽  
Single Plant ◽  
Growth Data ◽  
Slow Growing

Commercially available Acer rubrum and A. freemanii taxa were established as 10 single-plant replications in a cultivar trial at the TSU–NCRS in 1992 and Spring 1993. Plants were fertilized regularly and drip-irrigated as needed beginning Summer 1993. Growth data were recorded each fall and height and caliper increment calculated for the 1994 season. Ten cultivars were in the group with most height growth: `Armstrong', `Autumn Blaze', `Schlesingeri', `Olson', `Morgan', `Scarlet Red', `Embers', `Indian Summer', `Scarsen', and `October Glory'. These all differed significantly from a group of 11 slow-growing cultivars. With some exceptions, cultivars with the most height growth tended to have the most caliper growth, while those with the least height growth tended to have the least caliper growth. Data will also be presented on insect and disease ratings.

scholarly journals Elm Growth and Japanese Beetle Damage on Selected Cultivars

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 812C-812
Author(s):  
W.T. Witte ◽  
R.J. Sauve ◽  
P.C. Flanagan
Keyword(s):  
Drip Irrigation ◽  
Height Growth ◽  
Single Plant ◽  
Japanese Beetle ◽  
Annual Increment ◽  
Poor Growth ◽  
Beetle Damage ◽  
Heavy Infestation

Ten single plant replications of 11 taxa were planted 6 May 1994, fertilized regularly, and maintained under drip irrigation. Japanese beetle damage became apparent in mid-June. Sevin SL at 1 qt/100 gal was applied with a tractor-mounted mist blower on 22 June, and 7 and 19 July. Data on Japanese beetle populations were recorded using an arbitrary scale of 0 (no beetles) to 10 (heavy infestation). Damage on each tree was recorded using an arbitrary scale of 0 (no damage) to 10 (completely skeletonized). The annual increment in height and caliper growth was recorded for each tree in Fall 1994. Ulmus japonica and U. glabra `Pendula' had the most height growth (>60 cm increment) but were not significantly different from most other accessions, while NA 60070, U. crassifolia, and NA 60071 had significantly slower growth than the former group(<25 cm increment). Japanese beetles fed first on U. carpinifolia `Variegata', NA 60071, and 60070, skeletonizing most of the new growth before the first Sevin application, resulting in the most damage. This may have resulted in poor growth of the USDA/NA selections in 1994.

Development and Performance Evaluation of Rainwater Harvester for Drip Irrigation of Juvenile Citrus Orchard

2009 ◽  
Vol 62-64 ◽  
pp. 213-220
Author(s):  
S.O. Afolayan ◽  
K. Ogedengbe ◽  
I.B. Adeoye ◽  
O.O. Olufunmi ◽  
T. Ajetunmobi
Keyword(s):  
Drip Irrigation ◽  
Growth Parameters ◽  
Irrigation System ◽  
Block Design ◽  
Poultry Manure ◽  
Farming Systems ◽  
Educational Background ◽  
Base Line ◽  
Growth Data ◽  
Systems Research

Water crisis is assuming a more explosive and dangerous phenomenon due to stiff competition and demand between domestic use and agricultural activities. Farmer friendly and affordable indigenous water harvesting structure was developed and evaluated for the Farming systems research citrus expansion orchard at the National Horticultural Research Institute, Ibadan. The structure, made of bamboo materials and polyethylene sheets was constructed to harvest rainstorm and stored in plastic reservoirs between September and October 2007. The aim was to apply the water for drip irrigation of young citrus seedlings during the dry months of November until the on-set of rainfall. Six thousand litres of water were harvested. Drip irrigation system was connected to the rainstorm harvester to facilitate application of water to the young citrus seedlings planted at 7m by 5m spacing. Water application at the drip rate of 2.4 l/hr was done in split-plot fitted into randomized complete block design at one, twice and thrice per week with three replications under four fertilizer sources (poultry, horse, cow manures and urea fertilizer). Base line growth data for citrus at the initial watering stage stands at 139 for number of leaves, 83.5 cm for plant height, and 12.3 mm for stem diameter. Watering thrice per week under poultry manure was found to produce the best growth parameters. Generally, the structure was discovered to be cost effective, water saving, adoptable and affordable by farmers with little or no maintenance or educational background.

Probabilities of small-gap capture by sugar maple saplings based on height and crown growth data from felled trees

2005 ◽  
Vol 35 (3) ◽  
pp. 643-655 ◽  
Author(s):  
William G Cole ◽  
Craig G Lorimer
Keyword(s):  
Sugar Maple ◽  
Initial Conditions ◽  
Tree Height ◽  
Height Growth ◽  
Stochastic Simulations ◽  
Gap Formation ◽  
Growth Data ◽  
Stochastic Variation ◽  
Single Tree ◽  
Advance Regeneration

We simulated the probability that Acer saccharum Marsh. saplings in single-tree gaps would reach the overstory before lateral gap closure. The model was calibrated with height and crown growth data from destructively sampled trees that ranged from 1 to 27 m tall. Each of the major initial conditions and growth processes was evaluated separately to determine its effect on gap-capture probabilities. Factors such as sapling height at the time of gap formation, continued height growth of border trees, and stochastic growth variation had pronounced effects on the outcome. Stochastic variation generally increased chances of sapling success by delaying closure times in some of the gaps and allowing some saplings to grow at above-average rates. In stochastic simulations with continued (asymptotic) border-tree height growth, probabilities of successful gap capture ranged from <20% of saplings 1–2 m tall to 35%–86% for saplings 7–8 m tall. The results suggest that some saplings may be able to capture gaps after one gap event, but probabilities are low for small saplings and for all saplings in small and medium gaps. Based on the mechanisms simulated here, most of the larger single-tree gaps (78 m2) are captured by advance regeneration more than 4 m tall.

scholarly journals EXPOSURE TO CHILLING TEMPERATURES REDUCES GROWTH AND YIELD OF `SUPERSTAR' MUSKMELON

HortScience ◽  
1994 ◽  
Vol 29 (7) ◽  
pp. 734a-734
Author(s):  
W.D. Scott
Keyword(s):  
Leaf Area ◽  
Significant Interaction ◽  
Dry Weight ◽  
Field Studies ◽  
Growth And Yield ◽  
Single Plant ◽  
Growth Data ◽  
Flower Number ◽  
Chilling Temperatures ◽  
Plastic Containers

Greenhouse and field studies were conducted using research coolers to expose 4 week old `Superstar' muskmelons, planted into 1 liter plastic containers, to chilling temperatures. Temperatures of 1, 5, & 9 °C were arranged in factorial combination with lengths of exposures 6, 12, & 24 hours and number of exposures 1, 3, & 5. In the Greenhouse studies single plant experimental units were allowed to grow for 2 weeks following application of the chilling treatments, then growth data was taken. In field studies, exposed muskmelons were planted into 8 plants/plot units when all plants had received chilling treatments. Leaf area and plant dry weight of `Superstar' melons were significantly reduced by both the interaction of temperature and length of exposure and times exposed and temperature, with dramatic reductions in leaf area occurring at 24 hours of exposure or 5 times exposed at 1 °C. A significant interaction was found between times exposed or length of exposure and temperature on vine length, flower number and type measurements taken 4 weeks after chilled transplants were established in the field. Additionally, fruit number and mean melon weight were reduced by ether exposure to 10C, exposure of 24 hours or 3 times exposed.

scholarly journals Growth Index and Disease Ratings of 55 Crape Myrtle Cultivars in Tennessee

HortScience ◽  
1996 ◽  
Vol 31 (4) ◽  
pp. 660d-660
Author(s):  
W.T. Witte ◽  
M.T. Windham ◽  
R.J. Sauve ◽  
P.C. Flanagan
Keyword(s):  
Powdery Mildew ◽  
New Orleans ◽  
Drip Irrigation ◽  
Baton Rouge ◽  
Growth Index ◽  
Growing Season ◽  
World's Fair ◽  
Single Plant ◽  
Mean Width

Fifty-five accessions of commercially available crape myrtle cultivars were established with 10 single-plant replications during Fall 1993 and Spring 1994. Drip irrigation began on a regular basis May 1994 and plants were fertilized regularly. In contrast to the 1994 growing season with heavy powdery mildew infestation, little powdery mildew occurred in 1995. Mean growth index (GI = centimeter height + centimeter mean width) was calculated for each cultivar in Fall 1994 and 1995. Fastest growth occurred in `Tuskegee' and `Biloxi' (GI = 276, 246, respectively), followed by a group including `Tonto', `Comanche', `Choctaw', `Hardy Lavender', `Natchez', `Potomac', and `Tuscarora' (GI = 185 to 227). Slowest growth occurred in the group including `Pecos', `Seminole', `Baton Rouge', `Petite Orchid', `Bourbon Street', `Cherokee', `Monink Pink', `Moned Red', `Delta Blush', `Low Flame', `New Orleans', `Monow', and `World's Fair' (GI = 5 to 53). Data will be presented on powdery mildew ratings and physiological injury sustained during Winter 1995–96.

POTENSI PERTUMBUHAN PURWOCENG DENGAN TEKNIK IRIGASI TETES, NUTRIENT FILM TECHNIQUE (NFT) DAN PENANAMAN DI LAHAN TERBUKA

2018 ◽  
Vol 16 (2) ◽  
pp. 175-181
Author(s):  
Eni Sumarni ◽  
Loekas Soesanto ◽  
Noor Farid ◽  
Hanif Nasiatul Baroroh
Keyword(s):  
Plant Height ◽  
Drip Irrigation ◽  
Growth Data ◽  
Pests And Diseases ◽  
Circulating Water ◽  
Randomized Design ◽  
Nutrient Film Technique ◽  
Production Study ◽  
Open Land ◽  
Number Of Branches

The low yield and quality of purwoceng on conventional planting in open land can be overcome by the application of hydroponic technology in the greenhouse. Hydroponic technology in greenhouses allows controlled control of plants, more planned harvests and reduces pests and diseases. The results of a hydroponic purwoceng production study using drip and NFT irrigation techniques have been carried out separately. The results of the purwoceng production study using the hydroponic nutrient film technique (NFT) show that purwoceng is sensitive to circulating water. Withered purwoceng plants in the NFT system reach 40%. further studies are needed on the hydroponic technique of drip irrigation, NFT and in open land on the growth and development of purwoceng plants. The purpose of the research was to get the effect of drip irrigation, NFT and open land on the growth of plant height and the number of branches of purwoceng plants in the dry season. Experiment using a completely randomized design (CRD) with 3 replications. The micro-climate inside and outside the greenhouse observed includes air temperature and air humidity. Growth data were analyzed by F test and continued with DMRT test at 5% level. The growth variables observed included plant height and number of branches. Purwoceng production using drip irrigation systems, NFT systems and open land has different effects on purwoceng growth. Drip irrigation in the greenhouse produces the highest plant height and number of branches compared to the NFT technique and in open land. Purwoceng planting with drip irrigation shows the highest yield, which is 14 branches. The number of branches of purwoceng plants in open land reaches an average of 6.9. The NFT technique produces the lowest (3,9 branches).

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