Planting Date Influences on Yield and Fruit Size of Jack-olantern Pumpkins

In northern Indiana, jack-o-lantern pumpkins (Cucurbita pepo) can be planted from late May through June to produce mature fruit for sales associated with Halloween. Field trials were conducted to evaluate the influence of planting date on pumpkin yield and yield components. `Gold Medal' and `Magic Lantern' pumpkins were each seeded on three planting dates (PD) in 2002 (31 May, 10 and 20 June 10) and 2003 (5, 16, and 25 June). Each planting date was harvested between 100 and 110 days after planting. The weight per plant of pumpkins that were completely mature (orange) was greatest for the June 10 planting in 2002 (14.9 kg vs. 12.5 kg for 1st and 12.2 kg for 3rd PD), but did not differ among dates in 2003 (PD1: 10.9 kg, PD2: 10.4 kg, PD3: 9.0 kg). The number of orange pumpkins per plant was lowest for the 20 June 2002 planting (1.63 vs. 1.88 for 1st and 1.91 for 2nd PD) but did not differ among dates in 2003 (PD1: 1.08, PD2: 1.20, PD3: 1.19). The average weight of an orange pumpkin was lowest for the 31 May 200 planting date (7.17 kg vs. 8.35 kg for 2nd and 7.89 kg for 3rd PD) and highest for the 5 June 2003 planting date (10.6 kg vs. 9.07 kg for 2nd and 8.16 kg for 3rd PD). In both years the last planting date produced the least weight per plant, and in 2002 the fewest number, of pumpkins that had begun to turn orange plus fully orange pumpkins. The two cultivars produced similar weight per plant and responded similarly to planting date, but `Gold Medal' produced fewer and larger fruit. No planting date consistently produced the greatest yield or largest fruit.

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Drip Irrigation Effect on Yield and Fruit Size of Jack-o-lantern Pumpkins

HortScience ◽

10.21273/hortsci.41.4.1005c ◽

2006 ◽

Vol 41 (4) ◽

pp. 1005C-1005

Author(s):

Elizabeth T. Maynard

Keyword(s):

Drip Irrigation ◽

Sandy Loam ◽

Fruit Size ◽

Field Trials ◽

Gold Medal ◽

Yield Response ◽

Average Weight ◽

Yield Increase ◽

Soil Water Tension ◽

Planting Method

Benefits of drip irrigation for jack-o-lantern pumpkins (Cucurbita pepo) in the midwestern United States are not documented. Field trials were conducted on a sandy loam soil to compare yield and fruit size of unirrigated pumpkins (NONE) with pumpkins irrigated when in-row soil water tension (SWT) 30 cm deep reached 20 kPa (HIGH) or 60 kPa (MED). The 2004 trial included two planting methods, direct seed (SD) and transplant, and two cultivars, `Gold Medal' (GM) and `Magic Lantern' (ML). GM typically has larger and more vigorous vines than ML. In 2005 the trial included only SD ML. Rainfall June through August totaled 38.4 cm in 2004 and 28.2 cm in 2005. In 2004 HIGH increased yield 13% compared to NONE (42.1 vs. 37.2 t·ha-1). MED (39.0 t·ha-1) did not differ from NONE. Neither planting method nor cultivar influenced the yield response to irrigation. The effect of irrigation on average weight per pumpkin depended on cultivar. In 2004, ML with HIGH averaged 7.76 kg per pumpkin, 16% heavier than NONE at 6.67 kg. MED averaged 7.17 kg. Irrigation did not affect average weight of GM: HIGH, MED and NONE averaged 12.6, 12.8 and 12.3 kg, respectively. For SD ML, combined analysis of 2004 and 2005 data showed an 18% increase in average pumpkin weight for HIGH vs. NONE (7.94 vs. 6.72 kg), but no significant effect of irrigation on yield (33.6, 29.8 and 28.4 t·ha-1 for HIGH, MED and NONE, respectively). Irrigation did not affect the number of pumpkins produced per hectare for either cultivar in either year. Results suggest that compared to no irrigation, maintaining SWT less than 20 kPA with drip irrigation may lead to 1) yield increase on the order of 10% or less, 2) 16% to 18% increase in average pumpkin weight for ML.

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Black Polyethylene Mulch Doubled Yield of Fresh-market Field Tomatoes

HortScience ◽

10.21273/hortsci.27.7.787 ◽

1992 ◽

Vol 27 (7) ◽

pp. 787-789 ◽

Cited By ~ 16

Author(s):

Aref Abdul-Baki ◽

C. Spence ◽

R. Hoover

Keyword(s):

Field Experiments ◽

Total Yield ◽

Fruit Size ◽

Fruit Weight ◽

Planting Date ◽

Trickle Irrigation ◽

Fresh Market ◽

Planting Dates ◽

Early Production ◽

Polyethylene Mulch

Field experiments were conducted to a) maximize total yield of fresh-market field tomato (Lycopersicon esculentum Mill.) cultivars using black polyethylene mulch (BPM), and b) increase fruit size and yield during the last 5 weeks of the production period by reducing the number of synthate sinks per plant through eliminating all flowers that appeared during this period. Unmulched treatments under trickle irrigation and multiple applications of soluble fertilizer yielded an average of 43 t·ha-1 for `Sunny' and `Pik-Rite' over the two planting dates. With BPM, total yield increased by 95% to 84 t·ha-1. Although total yield increases due to BPM over the control were highly significant in both cultivars and over the two planting dates, yield increases were higher for the early than for the optimum planting date. BPM also significantly increased early production of `Pik-Rite' but not `Sunny', and the increase in early production was more pronounced for the optimum than the early planting date. Sink reduction during the last 5 weeks of the growing season had no effect on yield or fruit weight during that period.

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Optimum Planting Dates for Intercropping Cucumber, Squash, and Muskmelon with Strawberry

HortTechnology ◽

10.21273/horttech.18.4.656 ◽

2008 ◽

Vol 18 (4) ◽

pp. 656-659 ◽

Cited By ~ 3

Author(s):

Bielinski M. Santos ◽

Camille E. Esmel ◽

Silvia Slamova ◽

Elizabeth A. Golden

Keyword(s):

Cucumis Sativus ◽

Cucumis Melo ◽

Cucurbita Pepo ◽

Field Trials ◽

Planting Dates ◽

Air Temperatures ◽

Summer Squash ◽

Cucumber Yield

Three separate field trials were conducted to determine the most appropriate planting dates for intercropping cucumber (Cucumis sativus), summer squash (Cucurbita pepo), and muskmelon (Cucumis melo) with strawberry (Fragaria ×ananassa), and their effect on ‘Strawberry Festival’ strawberry yields. ‘Straight Eight’ cucumber, ‘Crookneck’ summer squash, and ‘Athena’ muskmelon were planted every 15 days from 25 Jan. to 23 March. None of the three intercropped species affected strawberry yield up to 60 days before the end of the season on 25 March. Cucumber yield responded quadratically to planting dates, rapidly increasing from 25 Jan. to 23 Feb. and declining afterward. Warmer temperatures favored summer squash yield, with the highest yields when planted on 23 Feb. or later. Muskmelon yields decreased as air temperatures increased, and the best planting dates were between 25 Jan. and 9 Feb. In summary, cucumber and summer squash seemed to be favored by planting under warmer temperatures, whereas muskmelon thrives under cooler weather.

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188 Influence of Planting Date on Strawberry Growth and Development in the Low Desert

HortScience ◽

10.21273/hortsci.34.3.474e ◽

1999 ◽

Vol 34 (3) ◽

pp. 474E-474

Author(s):

M.A. Maurer ◽

K. Umeda

Keyword(s):

Field Study ◽

Growth And Development ◽

Fruit Size ◽

Planting Date ◽

The Other ◽

Growth And Yield ◽

Planting Dates ◽

Fruit Number ◽

Significant Difference ◽

Strawberry Cultivars

A field study was designed to determine the effect of planting date and cultivar on growth and yield of strawberries in the low desert. The study was conducted at the Univ.of Arizona, Citrus Agricultural Center, near Waddell. Treatments included two strawberry cultivars (Camarosa and Chandler) and three planting dates 20 Aug. and 8 and 22 Oct. 1997. There was no significant difference in fruit yield between cultivars. However, fruit number was significantly greater for `Chandler', and, therefore, fruit size was smaller than `Camarosa.' Yield was significantly higher for strawberries planted 20 Aug., with nearly four times the yield compared to the other planting dates. Results of this study suggest summer planting of strawberries in the low desert to produce economically viable yields.

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EFFECT OF PLANT SPACING AND PLANTING DATE ON YIELD OF ANNUAL STRAWBERRY SYSTEM IN NEW JERSEY

HortScience ◽

10.21273/hortsci.27.6.636g ◽

1992 ◽

Vol 27 (6) ◽

pp. 636g-637

Author(s):

Joseph A. Fiola

Keyword(s):

New Jersey ◽

Fruit Quality ◽

Size Range ◽

Fruit Size ◽

Planting Date ◽

Plant Spacing ◽

Planting Dates ◽

Row Covers ◽

Date Fruit ◽

High Range

High density strawberry planting systems have increased yield and fruit quality, and allow greater production on small acreage. To adapt the system to New Jersey conditions, replicated plantings of `Chandler', `Tribute', and `Tristar' were established at 3 spacings and two planting dates (9/9, 9/15) in 1989, and two plant spacings and two planting dates (8/14, 9/7) in 1990. Plants were propagated as plugs from runner tips. The plantings were covered with floating row covers (polypropylene) in December, covers were removed in early April at 5% bloom. In 1990, `Chandler' yield increased as density increased, and decreased with later planting date. Fruit quality was very good; saleable % was over 90%. Size ranged from 8 to 21 g., and averaged from 12 to 17 g. for the various treatments. `Tribute' responded similar to `Chandler' but `Tristar' yield at 12″ was not significantly different than 6″, but greater than 9″. Size ranged from 9 to 19 g., and averaged from 10 to 14 g.; saleable % was over 85%. In 1991, 2 spacings (6″, 12″) and 2 planting dates (8/24, 9/7) were tested. The earlier planting date was superior to later; yields were not different between the 6″ and 12″ treatments (yield range: 3.8-5.4 T/A). Size was superior at wider spacing; day-neutral fruit size was small (avg fruit size range: 7.7-11.2g; high range: 10.1-17.4g).

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Effect of Planting Date and Peanut Cultivar on Epidemics of Late Leaf Spot in Georgia

Plant Disease ◽

10.1094/pdis-06-18-0954-re ◽

2019 ◽

Vol 103 (5) ◽

pp. 990-995 ◽

Cited By ~ 3

Author(s):

Brian S. Jordan ◽

Albert K. Culbreath ◽

Timothy B. Brenneman ◽

Robert C. Kemerait ◽

Katherine L. Stevenson

Keyword(s):

Leaf Spot ◽

Seed Treatment ◽

Field Trials ◽

Planting Date ◽

Organic Production ◽

Linear Functions ◽

Potential Utility ◽

Plant Populations ◽

Planting Dates ◽

Late Leaf Spot

Field trials were conducted in 2015 and 2016 in Tifton, GA to determine the effects of planting dates (24 and 27 April, 4, 11, 19, and 26 May 2015; and 11, 18, and 25 April and 2, 9, and 16 May 2016), peanut (Arachis hypogaea) cultivar (Georgia-06G and Georgia-12Y), and seed treatment (nontreated and treated with azoxystrobin, fludioxonil, and mefenoxam) on epidemics of late leaf spot (Nothopassalora personata), plant populations, and peanut yield. Final severity and AUDPC of late leaf spot increased with later planting dates in both years. For most planting dates in 2015 and the final planting date in 2016, final leaf spot severity and AUDPC were lower for Georgia-12Y than for Georgia-06G. Seed treatment increased plant populations for the 27 April and 4 May planting dates in 2015 and across all other treatments in 2016. Yields were higher for Georgia-12Y than for Georgia-06G in both years. In 2015, yields of both cultivars decreased according to linear functions of day of year of planting date, but there was no effect of planting date on yield in 2016. The combination of early planting with Georgia-12Y shows potential utility for management of leaf spot in situations such as organic production where fungicide use is minimal.

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Planting dates and seedling age of red cabbage during the spring season in Uzbekistan

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/939/1/012035 ◽

2021 ◽

Vol 939 (1) ◽

pp. 012035

Author(s):

M M Adilov ◽

B A Rustamov ◽

M E Amanova ◽

A S Rustamov

Keyword(s):

Unit Area ◽

Planting Date ◽

Comparative Assessment ◽

Average Weight ◽

Vegetable Crops ◽

Planting Dates ◽

Red Cabbage ◽

Number Of Leaves ◽

Set Up ◽

The Postponement

Abstract The importance of red cabbage for expanding the range of vegetable crops in Uzbekistan is highlighted in this paper. The results of three-year (2018-2020) studies on the comparative assessment of the effectiveness of three spring planting dates (March 5-9, 13-16 and 25-27) at three seedling ages (70, 60 and 50 days) at each planting date were presented. It was revealed that the later the seeds are sown to obtain seedlings for spring culture, the faster the seedlings appear and the more the seedlings form leaves. With the postponement of the timing of planting seedlings, the survival rate of seedlings increases. It has been established that the later the seedlings are planted, the higher the temperatures are the growth of plants and the formation of heads. The most unfavorable temperature conditions are formed when the seedlings are planted on March 25-27, which causes a delay at the beginning of the formation of heads of cabbage, an increase in the number of leaves of a root rosette, a decrease in the setting and average weight of heads of cabbage and their marketability. The best indicators of head set-up, their average weight and marketability, yield per unit area are provided when planting on March 14-16, 70 and 60-day old seedlings. Planting seedlings on March 25-27, seedlings of any age, due to the formation of heads of cabbage at excessively high temperatures, delays the flow of products, reduces the setting, average weight and marketability of heads of cabbage and significantly reduces the yield per unit area. It is recommended for a spring culture to plant on March 14-16 with 70 and 60-day old seedlings and not allow planting at the end of March.

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Effect of planting date and density on calendula and peppermint herbs

JOURNAL OF ADVANCES IN AGRICULTURE ◽

10.24297/jaa.v1i1.4241 ◽

2014 ◽

Vol 1 (1) ◽

pp. 25-29

Author(s):

Rahim Mohammadian ◽

Behnam Tahmasebpour ◽

Peyvand Samimifar

Keyword(s):

Mutual Effect ◽

Dry Weight ◽

Planting Date ◽

Mass Reduction ◽

Flower Number ◽

Planting Dates ◽

Randomized Design ◽

Significant Difference ◽

Completely Randomized Design ◽

Total Maximum

A factorial experiment was conducted with a completely randomized design to evaluate the effects of planting date and density on calendula herbs and peppermint. It had 3 replicates and was done in Khosroshahr research farm, Tabriz in 2006. Under studied factors were: 3 planting dates (10 May, 25 May and 10 June) in 4 densities (25, 35, 45, 55) of the plant in square meters. The results of variance a nalysis showed that there was 1% probability significant difference between the effects of planting date and bush density on the leave number, bush height and the bush dry weight. But the mutual effect of the plant date in mentioned traits density was insignificant. Regarding the traits mean comparison, the total maximum dry weight was about the 55 bush density in mm. Also, the bush high density in mm causes the bush growth and its mass reduction. When there is the density grain, the flower number will increase due to bush grain in surface unit. Overall, we can conclude that 10 June planting and 45 bush density in mm is the most suitable items and results in favored production with high essence for these crops.

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Nitrogen Demand of Cut Chrysanthemums in Relation to Shoot Height and Planting Date

HortScience ◽

10.21273/hortsci.33.3.523c ◽

1998 ◽

Vol 33 (3) ◽

pp. 523c-523

Author(s):

Siegfried Zerche

Keyword(s):

Dry Matter ◽

Plant Density ◽

Plant Biomass ◽

N Uptake ◽

Planting Date ◽

Dry Matter Accumulation ◽

Planting Dates ◽

Shoot Height ◽

Climate Conditions ◽

Growing Period

Refined nutrient delivery systems are important for environmentally friendly production of cut flowers in both soil and hydroponic culture. They have to be closely orientated at the actual nutrient demand. To solve current problems, express analysis and nutrient uptake models have been developed in horticulture. However, the necessity of relatively laborious analysis or estimation of model input parameters have prevented their commercial use up to now. For this reason, we studied relationships between easily determinable parameters of plant biomass structure as shoot height, plant density and dry matter production as well as amount of nitrogen removal of hydroponically grown year-round cut chrysanthemums. In four experiments (planting dates 5.11.91; 25.3.92; 4.1.93; 1.7.93) with cultivar `Puma white' and a fixed plant density of 64 m2, shoots were harvested every 14 days from planting until flowering, with dry matter, internal N concentration and shoot height being measured. For each planting date, N uptake (y) was closely (r2 = 0.94; 0.93; 0.84; 0.93, respectively) related to shoot height (x) at the time of cutting and could be characterized by the equation y = a * × b. In the soilless cultivation system, dry matter concentrations of N remained constant over the whole growing period, indicating non-limiting nitrogen supply. In agreement with constant internal N concentrations, N uptake was linearly related (r2 = 0.94 to 0.99) to dry matter accumulation. It is concluded that shoot height is a useful parameter to include in a simple model of N uptake. However, in consideration of fluctuating greenhouse climate conditions needs more sophisticated approaches including processes such as water uptake and photosynthetically active radiation.

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Impact of Row Spacing and Planting Date on the Canopy Environment, Abundance of Lesser Cornstalk Borer and Other Arthropods, and Incidence of Aflatoxigenic Fungi in Peanuts

Peanut Science ◽

10.3146/i0095-3679-24-1-12 ◽

1997 ◽

Vol 24 (1) ◽

pp. 52-59

Author(s):

S. D. Stewart ◽

K. L. Boweri ◽

T. P. Mack ◽

J. H. Edwards

Keyword(s):

Climatic Conditions ◽

Planting Date ◽

Row Spacing ◽

Planting Dates ◽

Canopy Development ◽

Late Planting ◽

Elasmopalpus Lignosellus ◽

Soil Temperatures ◽

Lepidoptera Pyralidae ◽

Wide Row Spacing

Abstract Three row spacings and two planting dates for peanuts, Arachis hypogaea L., were examined in 1993 and 1994 to determine the influence of the canopy environment on lesser cornstalk borer, Elasmopalpus lignosellus (Zeller) (Lepidoptera: Pyralidae), other arthropods, and alflatoxigenic fungi. Climatically, 1993 and 1994 were disparate years. Decreasing row spacing increased relative leaf area and light interception by the canopy but, compared to difference between planting dates or years, had a relatively small impact on soil temperatures and relative humidity within the canopy. Late planting produced smaller plants, retarded canopy development, and reduced yield in both years, but especially in 1993 when it was hot and dry. The wide row spacing did not yield as well as twin and normal row spacings in either year. Lesser cornstalk borer damage and aflatoxin concentration were higher in the late planting than in the early planting of 1993, but were unaffected by row spacing. Fewer predatory arthropods were caught as row spacing decreased in both beat and pitfall samples, but planting date had variable effects. Prevailing climatic conditions and planting date appeared to be more important in influencing the canopy environment and pest densities than was row spacing.

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