scholarly journals Planting Date and Cultivar Affect Melon Quality and Productivity

HortScience ◽  
2006 ◽  
Vol 41 (7) ◽  
pp. 1559-1564 ◽  
Author(s):  
Robert J. Dufault ◽  
Ahmet Korkmaz ◽  
Brian K. Ward ◽  
Richard L. Hassell
Keyword(s):  
South Carolina ◽  
Cucumis Melo ◽  
Planting Date ◽  
Harvest Date ◽  
Internal Quality ◽  
Planting Dates ◽  
Late Planting ◽  
Potential Market ◽  
Honeydew Melon

Extending the production season of melons (Cucumis melo L.) by using very early and late planting dates outside the range that is commercially recommended will increase the likelihood of developing a stronger melon industry in South Carolina. The objective of this study was to determine if early (February) transplanted melons or later (June through July) planting dates are effective in extending the production season of acceptable yields with good internal quality of the melon cultivars: Athena, Eclipse, and Sugar Bowl and Tesoro Dulce (a honeydew melon). Melons were transplanted in Charleston, S.C., in 1998, 1999, and 2000 on 12 and 26 Feb., 12 and 26 Mar., 9 and 23 Apr., 7 and 21 May, 4 and 18 June, and 2 July and required 130, 113, 105, 88, 79, 70, 64, 60, 60, 59, and 56 days from field transplanting to reach mean melon harvest date, respectively. Stands were reduced 67%, 41%, and 22% in the 12 and 26 Feb. and 12 Mar. planting dates, respectively, in contrast to the 26 Mar. planting date but ≤15% in all other planting dates. Planting in February had no earliness advantage because the 12 and 26 Feb. and 12 and 26 Mar. planting dates, all reached mean melon harvest from 19 to 23 June. Comparing the marketable number of melons produced per plot (averaged over cultivar) of the standard planting dates of 12 and 26 Mar. indicated decreases of 21%, 32%, 36%, 36%, 57%, 57%, and 54%, respectively with the planting dates of 9 and 23 Apr., 7 and 21 May, 4 and 18 June, and 2 July. The most productive cultivar of all was `Eclipse', which yielded significantly more melons per plot in all 11 planting dates followed by `Athena' (in 8 of 11 planting dates), `Tesoro Dulce' (7 of 11 planting dates), and `Sugar Bowl' (2 of 11 planting dates). In our study, any planting date with melon quality less than the USDA standard of “good internal quality” or better (Brix ≥9.0) was considered unacceptable because of potential market rejection. Therefore, the earliest recommended planting date with acceptable yield and “good internal quality” was 12 Mar. for all cultivars; the latest planting dates for `Athena', `Eclipse', `Tesoro Dulce', and `Sugar Bowl' were 4 June, 18 June, 7 May, and 9 Apr., respectively. With these recommendations, the harvest season of melons lasted 40 days from 24 June to 3 Aug. for these four cultivars, which extended the production season an additional 2 weeks longer than the harvest date of last recommended 21 May planting date.

scholarly journals 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

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.

scholarly journals Planting Date and Cultivar Effects on Soybean Yield, Seed Quality, and Phomopsis sp. Seed Infection

Plant Disease ◽  
2003 ◽  
Vol 87 (5) ◽  
pp. 529-532 ◽  
Author(s):  
J. A. Wrather ◽  
D. A. Sleper ◽  
W. E. Stevens ◽  
J. G. Shannon ◽  
R. F. Wilson
Keyword(s):  
Seed Quality ◽  
Significant Negative Correlation ◽  
Planting Date ◽  
Seed Infection ◽  
Planting Dates ◽  
Breeding Programs ◽  
Group Iii ◽  
Phomopsis Seed Decay ◽  
Seed Decay

Incidence of Phomopsis seed decay is frequently high and quality low in seed from early-maturing maturity group III and IV soybean cultivars planted in early to mid-April in the southern United States. Cultivars resistant to this disease have not been available until the recent release of germ plasm lines SS 93-6012 and SS 93-6181. Our objective was to determine the effects of planting dates with these lines and one Phomopsis seed decay-susceptible soybean cultivar, Asgrow 3834, on seed infection by Phomopsis spp. and on yield and the correlation between percentage of Asgrow 3834 infected with Phomopsis spp. and seed quality. Generally, yields averaged over years were significantly greater for mid-April than mid-June plantings, and yields of cultivars were similar within a planting date. Soybean lines SS 93-6012 and SS 93-6181 were highly resistant to Phomopsis seed decay compared with the susceptible cultivar, Asgrow 3834. There was a significant, negative correlation between germination of seed from mid-April plantings of Asgrow 3834 and percentage of these seed infected with Phomopsis spp. Moreover, there were significant correlations between fatty acid composition of Asgrow 3834 seed and the percentage of these seed infected with Phomopsis spp. This altered composition of fatty acids may be responsible for reduced quality of oil derived from seed infected with this fungus. Phomopsis seed decay-resistant soybean lines SS 93-6012 and SS 93-6181 should be useful in breeding programs focused on developing high-yielding cultivars resistant to this disease.

scholarly journals Effect of planting date on the incidence of eggplant aphid, Aphis gossypii Glover and yield of eggplant

2012 ◽  
Vol 39 (2) ◽  
pp. 187-194
Author(s):  
M. Matiur Rahman ◽  
Pankoj Kumar Sarker ◽  
Bidhan Chandra Das
Keyword(s):  
Aphis Gossypii ◽  
Planting Date ◽  
Aphid Population ◽  
Planting Dates ◽  
Plant Yield ◽  
Late Planting ◽  
Aphis Gossypii Glover ◽  
Crops Yield

Impact of planting dates on Aphis gossypii Glover infestation and yields of eggplants was studied in the field. The aphid population was very low (4.75-31.05 aphids/plant) on the first planted crops. Yield of first planting dates were higher (1.56-3.58 kg/plant), however; aphid population on the successive late planting crops gradually increased and reached to peaks at third planting dates (15.51- 96.46 aphids/plant). Yield of eggplant gradually decreased on successive late planting crops and lowest yield recorded for third planting crops (1.06-1.88 kg/plant).DOI: http://dx.doi.org/10.3329/bjz.v39i2.10585 Bangladesh J. Zool. 39(2): 187-194, 2011   

scholarly journals Effect of Planting Date and Cultivar Maturity in Edamame Quality and Harvest Window

2021 ◽  
Vol 11 ◽  
Author(s):  
David Moseley ◽  
Marcos Paulo da Silva ◽  
Leandro Mozzoni ◽  
Moldir Orazaly ◽  
Liliana Florez-Palacios ◽  
...  
Keyword(s):  
The United States ◽  
Planting Date ◽  
Harvest Date ◽  
Timely Manner ◽  
Phenological Stages ◽  
Planting Dates ◽  
Harvest Dates ◽  
Key Factor ◽  
Harvest Strategy ◽  
The Impact

Edamame is a food-grade soybean [Glycine max (L.) Merr.] that is harvested immature between the R6 and R7 reproductive stages. To be labeled as a premium product, the edamame market demands large pod size and intense green color. A staggered harvest season is critical for the commercial industry to post-harvest process the crop in a timely manner. Currently, there is little information to assist in predicting the optimum time to harvest edamame when the pods are at their collective largest size and greenest color. The objectives of this study were to assess the impact of cultivar, planting date, and harvest date on edamame color, pod weight, and a newly minted Edamame Harvest Quality Index combining both aforementioned factors. And to predict edamame harvest quality based on phenological stages, thermal units, and planting dates. We observed that pod color and weight depended on the cultivar, planting date, and harvest date combination. Our results also indicated that edamame quality is increased with delayed planting dates and that quality was dependent on harvest date with a quadratic negative response to delaying harvest. Maximum quality depended on cultivar and planting and harvest dates, but it remained stable for an interval of 18–27 days around the peak. Finally, we observed that the number of days between R1 and harvest was consistently identified as a key factor driving edamame quality by both stepwise regression and neural network analysis. These research results will help define a planting and harvest strategy for edamame production in Arkansas and the United States Mid-South.

scholarly journals Effects of planting time on growth, development and productivity of maize (Zea mays L.)

2018 ◽  
Vol 1 (1) ◽  
pp. 43-50
Author(s):  
Jiban Shrestha ◽  
Manoj Kandel ◽  
Amit Chaudhary
Keyword(s):  
Growth And Development ◽  
Crop Production ◽  
Disease Incidence ◽  
Grain Filling ◽  
Planting Date ◽  
Crop Modeling ◽  
Planting Dates ◽  
Late Planting ◽  
Maize Growth ◽  
Growth Development

Planting date plays important role in the growth, development and yield of maize. Optimum planting date has becomes a prime importance for higher crop production. The plant establishment as well as pest and disease incidence are affected by planting dates. Crop varieties respond differently to planting dates. Early or late planting dates on maize causes an array of morpho-anatomical, physiological and biochemical changes in plants, which affect plant growth and development and such changes may lead to a drastic reduction in yield. Maize growth and development involves numerous biochemical reactions which are sensitive to variance in weather parameters as affected by planting dates. Delayed planting dates affect traits namely anthesis silking interval, photosynthesis, physiological maturity and dry matter production due to reduction in cumulative interception of photosynthetically active radiation (PAR). Late planting dates cause higher non-structural carbohydrate concentration in stems at mid-grain filling stages due to low temperature exposure of crop limiting kernel growth and photosynthesis. The adverse effects of delayed planting dates can be mitigated by forecasting optimum planting dates through crop modeling experiments. This article summarizes various effects of planting dates on maize growth, development and yield parameters. This information may be useful for maize growers and researchers.

EFFET DES DATES DE PLANTATION SUR LES POMMES DE TERRE CULTIVEES EN SAISONS COURTES

1981 ◽  
Vol 61 (2) ◽  
pp. 417-424
Author(s):  
R. RIOUX ◽  
H. GENEREUX ◽  
J. GOSSELIN
Keyword(s):  
Solanum Tuberosum ◽  
Solanum Tuberosum L ◽  
Total Yield ◽  
Planting Date ◽  
Tuber Size ◽  
Tuber Growth ◽  
Potato Tubers ◽  
Planting Dates ◽  
Chipping Quality

The effect of planting dates on growth and quality of potato tubers (Solanum tuberosum L.) grown on a wet and cold soil was studied. Ninety days after planting, total yield was higher in plots planted in mid-June than in those planted at the end of May. However, 110 days after planting, yield was higher with the earlier planting dates. Yield at 130 day s after planting was not significantly different from yield at 110 days after planting. Tuber growth ended on 15 Sept. in 1975 and on 30 Sept. in 1974 and 1976. Percentage of tubers 70 mm and more in size was four times higher at 110 than at 90 days after planting for cv. Kennebec at the first planting date. Increase in tuber size was lower for cvs. Norland and Netted Gem and for all other planting dates. In spite of a low increase of specific gravity, chipping quality decreased as harvest was delayed. Percentage of tubers bearing Rhizoctonia sclerote increased as harvesting was delayed.

COMPOSITIONAL TRAITS OF SOYBEAN SEEDS AS INFLUENCED BY PLANTING DATE IN INDIA

2006 ◽  
Vol 42 (1) ◽  
pp. 19-28 ◽  
Author(s):  
VINEET KUMAR ◽  
ANITA RANI ◽  
VIMAL PANDEY ◽  
PURVI MANDE ◽  
G. S. CHAUHAN
Keyword(s):  
Fatty Acid Composition ◽  
Trypsin Inhibitor ◽  
Oil Content ◽  
Planting Date ◽  
Soybean Seeds ◽  
Oleic Acid Content ◽  
Seed Traits ◽  
Planting Dates ◽  
Late Planting ◽  
One Year

Information on the influence of date of planting on protein, oil and fatty acid composition of soybean seeds is meagre, whilst similar studies on lipoxygenase isozymes and trypsin inhibitor contents are lacking. A field experiment was conducted with nine Indian genotypes and three planting dates (spread over 23 days) to study the influence of planting dates on these seed traits. Results based upon a one-year study indicated that oil content declined with delays in planting. Oleic acid content increased from the first to third planting, while the reverse trend was observed for linolenic acid. Lipoxygenase-1 activity was reduced by delayed plantings. Protein content was the lowest and trypsin inhibitor content was the highest for the second planting. However, no differences were observed for protein and trypsin inhibitor contents between the first and third planting. Significant interactions. observed between genotype and planting date for most of the seed compositional characters suggest that the influence of late planting is genotype-dependent.

scholarly journals Duração do ciclo e danos por altas e baixas temperaturas em gladíolo em função da época de plantio

2018 ◽  
Vol 24 (2) ◽  
pp. 163-173
Author(s):  
Natalia Teixeira Schwab ◽  
Nereu Augusto Streck ◽  
Lilian Osmari Uhlmann ◽  
Camila Coelho Becker ◽  
Bruna San Martim Rolim Ribeiro ◽  
...  
Keyword(s):  
Low Temperatures ◽  
Field Experiments ◽  
Planting Date ◽  
Developmental Cycle ◽  
Market Demand ◽  
Planting Dates ◽  
Adverse Conditions ◽  
High And Low Temperatures ◽  
Santa Maria

The planting date is an important factor affecting the developmental cycle and quality of final product. Indications from the literature are that gladiolus is a species that can be cultivated throughout the year, but in some periods, adverse conditions may occur, reducing the quality of the flower. Two field experiments (Experiment 1: August 2011 to July 2012 and Experiment 2: August 2012 to July 2013) were conducted in Santa Maria, RS, Brazil, to quantify the influence of planting dates on the duration of the developmental cycle and on the quality of flower stems in gladiolus, identifying possible damages by high and low temperatures in the final product. It is concluded that it is possible to cultivate gladiolus throughout the year, but the duration of gladiolus cycle is higher when planting is carried out in periods of low temperatures, and this is important for scheduling the planting date, mainly for meeting specific market demand (commemorative dates). Extreme temperatures (above 35 ºC and below 0 ºC) reduce the commercial flowers quality and even cause the death of plants.

scholarly journals Planting Dates and Nutrition Management Regimes Impact Positively on Bulb Size, Quality and Yield of Rain-fed Onion

2019 ◽  
Vol 6 (1) ◽  
pp. 44-51
Author(s):  
Isaac Kwahene ADDAI ◽  
Joseph X. KUGBE
Keyword(s):  
Fertilizer Application ◽  
Northern Region ◽  
Planting Date ◽  
Fresh Weight ◽  
Planting Dates ◽  
Nutrition Management ◽  
Planting Material ◽  
Management Regimes ◽  
Cropping Seasons

 Bulb size, appropriate time of planting and sufficient growth nutrients may determine the quality of seeds and productivity of onion. Studies were conducted during the cropping seasons of year 2015 and 2016 to assess the effects of planting date and nutrients management regimes on bulb size, quality and yield of rain-fed onion using seeds of variety Prema as planting material. Three levels of transplanting dates namely early transplanting (N1)), transplanting of seedlings two weeks after early transplanting (N2), and transplanting of seedlings four weeks after early transplanting (N3) were factorially combined with the following six fertilizer application regimes: F1 (no fertilizer application), F2 (application of 375 kg/ha of NPK 23:10:10), F3 (application of 10 t/ha fertisoil compost), F4 (application of 187.5 kg/ha of NPK 23:10:10 plus 5 t/ha of fertisoil compost), F5 (application of 125 kg/ha of NPK 23:10:10  plus 6.6 t/ha of fertisoil compost) and F6 (application of 250 kg/ha of NPK 23:10:10 plus 3.3 t/ha of fertisoil compost). Seedlings from the above treatment combinations were planted using RCBD in three onion growing communities in the Northern Region of Ghana. At harvest, bulbs were sorted into three groups (large, medium and small bulbs). Results from the studies indicated that in each group of bulb size, N1 x F4 plants produced the highest bulb fresh weight and bulb diameter. Plants from these regimes also produced the highest bulb quality and bulb yield. Farmers should nurse onion seeds early, latest by first week of June in the rainy season, so as to transplant seedlings by first week of July and apply 187.5 kg/ha of 23:10:10 NPK plus 5 t/ha fertisoil compost for improved bulb sizes in the study area.

scholarly journals Greening of potato tubers after harvest: effect of planting date and cultivar

2020 ◽  
Vol 9 (7) ◽  
pp. e105973971
Author(s):  
Vlandiney Eschemback ◽  
Aline Marques Genú ◽  
Jackson Kawakami
Keyword(s):  
Climatic Factors ◽  
Planting Date ◽  
Potato Cultivars ◽  
Southern Brazil ◽  
Light Conditions ◽  
Potato Tubers ◽  
Planting Dates ◽  
Yield And Quality ◽  
And Storage

The different potato planting dates in southern Brazil have different climatic factors that affect the yield and quality of the tubers produced. The objective of this work was to test the effect of planting date and potato cultivars on the postharvest greening of tubers. The treatments consisted of three planting dates (October, December, and February) and three potato cultivars (Agata, BRS Clara, and BRS F63 Camila). It was observed that the tubers harvested in February were less susceptible to greening, probably due to the higher physiological maturity of the tubers produced in this planting date. Tubers of cv. BRS Clara had lower greening than the tubers of the other cultivars. In addition to the light conditions, the cultivar and storage air temperature are also important factors that affect greening rates. Care must be taken with these factors to avoid losses of tubers by greening.

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