Inter- and Between-row Spacing on Yield and Quality of a Pumpkin Interspecific Hybrid

2016 ◽  
Vol 23 (2) ◽  
pp. 151-157
Author(s):  
M. Amani ◽  
J. A. Olfati ◽  
M. Esfahani
2016 ◽  
Vol 7 (1) ◽  
pp. 112 ◽  
Author(s):  
Jamal-Ali Olfati ◽  
Mohammad-Bagher Mahdieh-Najafabadi ◽  
Mohammad Rabiee

Garlic is primarily grown for its cloves used mostly as a food flavoring condiment. Previous studies carried out on plant density indicate its direct influence on yield. Plant density depends on the genotype, environmental factors, cultural practices, etc. This study was established to determine the effects of different between-row spacing on growth, yield, and quality of four local accession of garlic. It was laid out on two-factorial Randomized Complete Block Design with three replications during two years. Four local accession of garlic (Langroud, Tarom, Tabriz and Hamedan) were culture in three between-rows spacing (15, 25 and 35 cm) during two years. The results of two cultivated years were different. Plant density changed when garlic cultured with different between row spacing. In present research plant yield increased when the lower between row spacing and high plant density were used but the yield improvement occurring at increased plant stand is offset by the reduction in bulb size and some quality indices such as total phenol and antioxidant which severely affects quality and market value, when garlic is produced for fresh market.


2017 ◽  
Vol 2 (2) ◽  
pp. 064
Author(s):  
Wiji Safitri ◽  
Endang Sulistyaningsih ◽  
Benito Heru Purwanto ◽  
Stephen Harper

Nitrogen was a key component for increasing yield and quality of vegetables like shallots. The growth and development of plants were influenced by nitrogen form. Common plants preferred nitrate for growth, but the enormity preference varies within plant species and other environmental factors. The purpose of this experiment was to study the effect of ammonium:nitrate ratio in sandy soil to growth and yield of shallot (Allium cepa L. Aggregatum group). The experiment had been conducted in August-October 2015 in the sandy land on Samas Beach, Bantul, Yogyakarta, Indonesia. The research was arranged in a Split-Plot design. The main plot was the source of nitrogen (NH4+; NO3-; NH4+: NO3- 1:1; NH4+: NO3- 1:2; and NH4+: NO3- 2:1) and the subplot was cultivars (Crok Kuning, Tiron, and Bima Brebes). Each subplot covered an area of 2.5 m² (2.5 m x 1 m) with three blocks as replications. Shallot bulbs were planted in sixth-row, spacing 20 cm between rows and 15 cm within rows. The dose was applied according to the recommendation of BPTP (urea 200 kg ha-1, ZA 250 kg ha-1, SP-36 150 kg ha-1, and KCl 150 kg ha-1) 144.5 kg N ha-1. Ammonium:nitrate ratio influenced shallot growth in sandy soil through number of leaves at maximum vegetative phase and its leaf area. The NH4+: NO3- 1:2 ratio gave the best result in dry weight of leaves following bulb dry weight than other ratio. Nevertheless, ammonium:nitrate ratio had no significant influence on bulb dry weight (ton ha-1).


Author(s):  
V. Stroyanovskyi ◽  

Goal. To substantiate the technology of growing fennel in Lisste. Crop accounting was performed by continuous submerged threshing. Methods. The yield was brought to 100% purity and standard humidity according to the method described by V.O. Moiseychenko and V.O. Yeshchenko. Mathematical data processing was performed according to the method of B.A. Dopehova. Results. The article highlights the results of studies of technological factors influence (sowing time, seeding rates, row spacing, growth regulators and terms of their application) on the yield and quality of fennel seeds when grown in the Western Forest-Steppe. Indicators of yield and content of essential oil in seeds depending on the studied factors are given. According to the research results, on average over the years of research the yield of fennel seeds at 1.56 t / ha was obtained by sowing at the level of thermal regime of the soil 6–80C in a wide row at 45 cm by seeding rate of one million sprouting seeds per hectare. Among the studied agents Vermiyodis was the best when used for seed treatment, and the agent Humifield – for the treatment of vegetative plants, the yield on these variants exceeded the control by: 0.28 and 0.30 t / ha, respectively. The maximum content of essential oil in the same variants of experiments was determined. In addition, calculations have been made which show that the maximum conditional oil yield of 60 kg / ha was observed in the variant of sowing in the first term with a row spacing of 45 cm and the sowing rate of one million sprouting seeds per hectare. The use of growth regulators helped to increase the conditional yield of essential oil by 4.5–11.6 kg / ha. Conclusions. Тo ensure the yield of fennel seeds at the level of 1.56-1.8 t / ha, the content of essential oil in the seeds - in the range of 6.26-6.36% in the Western Forest-Steppe, we offer sowing at the level of soil thermal regime 6-80C in a wide row at 45 cm sowing rate of one million such seeds per hectare, in the phase of plant stems - spraying crops growth regulator Humifield at the rate of 100 g / ha, dissolved in 250 liters of water.


2002 ◽  
Vol 12 (3) ◽  
pp. 410-415 ◽  
Author(s):  
Anusuya Rangarajan ◽  
Betsy Ingall ◽  
Michael Orfanedes ◽  
David Wolfe

Early-planted fresh market sweet corn (Zea mays) is prone to nonuniform ear length and quality due to uneven germination in cool soils. Growers compensate by reducing in-row spacing at seeding, to increase final plant stand. This risk management strategy was suspected to be reducing quality of early-planted sweet corn, based upon buyer feedback. Four experiments were conducted in upstate New York, to examine the effects of in-row spacing and cultivar on early-planted sweet corn ear yield, length and uniformity. Cultivars examined included `Temptation' (4 years), `Sweet Symphony' (3 years) and `Seneca Spring' (2 years). In-row spacings tested ranged from 6 to 9 inches (15.2 to 22.9 cm), using a 30-inch (76.2-cm) between-row spacing. In-row spacing and cultivar influenced marketable yield, husked ear weight and length of early-planted corn, but the extent varied by year. Despite improvements in individual ear weight and length at wider in-row spacing, marketable yield was usually higher at more narrow spacings. Increases in ear weight at wider spacings were usually associated with increases in weight of the outer, green husk. Average ear length of a cultivar varied between 0.2 and 0.6 inches (0.5 to 1.5 cm) in response to spacing. If ears longer than 7 inches (17.8 cm) were desired, 40% to 60% of ears satisfied this criteria if harvested from plants grown at 8-inch (20.3-cm) in-row spacing or a plant population of 26,000 plants/acre (64,200 plants/ha). Ear weight and length of `Seneca Spring' was not as affected by the in-row spacing treatments compared to the other two cultivars, perhaps due to the small size of this cultivar. Selection of smaller sized sweet corn cultivars for planting at high plant populations (6-inch in-row spacing) may reduce the variation in ear weight under challenging early season conditions. For cultivars with similar growth characteristics and maturities of `Temptation' and `Sweet Symphony,' a minimum in-row spacing of 8 to 9 inches or a plant population of 23,200 to 26,000 plants/acre (57,300 to 64,200 plants/ha) was recommended to minimize variation in ear yield and quality from first bareground plantings in the northeastern United States.


HortScience ◽  
1999 ◽  
Vol 34 (3) ◽  
pp. 518D-518
Author(s):  
D.C. Sanders ◽  
W.R. Jester

During 2 years, `Takinogawa Long' gobo was seeded with two, three, or four rows per 1.5-m bed at in row spacings of 7.5, 15, 21.5, and 30 cm. Total and marketable yield increased with in-row spacing and marketable yield increased with row number, with greatest yields occurring at 15 cm regardless of row number. Average root weight and yield of forked roots were not affected by row number but increased with in row spacing. Similarly, percent forked roots decreased with more rows per bed. The 15-cm in-row spacing had the greatest yield, but also the greatest weight of culled roots, but none of the populations affected percentage culls. In another study, in-row subsoiling (SS) and in-row banded phosphorus (P) were evaluated. Marketable yield was increased by both SS and P but did not interact. P increased average root weight. Neither SS or P affected forked root yield or cull root yield, but SS decreased forked roots and increased cull production.


1977 ◽  
Vol 17 (84) ◽  
pp. 135 ◽  
Author(s):  
GA Constable

Field experiments were done in three successive seasons to determine the effects of cultivar and row spacing on growth, yield and quality of cotton. Narrow rows had a higher early season LAI than wide rows, but differences in LAI between row spacings disappeared by the peak flowering stage. Hopicala and Deltapine 16 had a higher LAI than Riverina Poplar and Super Okra M8. Narrow rows produced 28 per cent more fruiting points than wide rows, but this was not reflected as a consistent increase in yield, as fruit shedding was greater and boll size was smaller in narrow rows than in wide rows. Narrow rows yielded 44 per cent more than wide rows in 1972-73 but 7 per cent less in 1973-74 and 1 per cent less in 1974-75. Earlier crop maturity was obtained with narrow rows in all cultivars in 1974-75 and Hopicala only in 1972-73. Deltapine 16 and Super Okra M8 had the highest average yield at both row spacings, with Super Okra M8 having the highest yield at the first pick. No fibre properties were consistently affected by row spacing. Cultivar differences were as expected with the early maturing cultivar Riverina Poplar having the shortest fibres and the later maturing cultivar Hopicala having the greatest fibre strength.


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