Effects of plant spacing on broccoli yield and hollow stem in Alaska

1991 ◽  
Vol 71 (2) ◽  
pp. 579-585 ◽  
Author(s):  
Marilyn Griffith ◽  
Donald E. Carling
Keyword(s):  
Key Words ◽  
Brassica Oleracea ◽  
High Latitude ◽  
Maximum Yield ◽  
High Latitudes ◽  
Plant Spacing ◽  
Single Plant ◽  
Fresh Market ◽  
Head Weight ◽  
Brassica Oleracea L

The potential to produce broccoli (Brassica oleracea L. spp. Italica Plenck 'Green Valiant' and 'Emperor') at high latitudes was evaluated by measuring yield, head size and incidence of hollow stem in plantings at two sites and eight spacings. The maximum yield of individual heads for fresh market was obtained at a spacing of 45 × 30 cm using single plant transplants. At this spacing, yields for Green Valiant and Emperor were 18.3 and 15.0 MT ha−1, respectively. Broccoli heads small enough to be used for processing were obtained at a spacing of 45 × 40 cm using two plants per transplant plug with yields of 21.4 MT ha−1 for Green Valiant. These yields were compared with published studies and it was concluded that there was no effect of latitude on broccoli yields or head weights. The incidence of hollow stem was low in Alaska and occurred in Green Valiant planted at wide spacings. Only plants that produced heads with the largest mean weights and mean diameters exhibited hollow stem. The use of multiple plants per transplant plug decreases mean head weight and diameter and reduces the incidence of hollow stem. Key words: Alaska, Brassica oleracea, broccoli, high latitude, hollow stem, yield

scholarly journals Yield and quality of early cabbage (Brassica oleracea L. var. capitata) in response to within-row plant spacing

2007 ◽  
Vol 89 (1) ◽  
Author(s):  
Dragan ŽnidarČiČ ◽  
Nina Kacjan-MarŠiĆ ◽  
Jože Osvald ◽  
Tomaž Požrl ◽  
Stanislav Trdan
Keyword(s):  
Brassica Oleracea ◽  
Plant Spacing ◽  
Yield And Quality ◽  
Brassica Oleracea L

BREEDING OF GREEN CURDED CAULIFLOWER (BRASSICA OLERACEA L., BOTRYTIS GROUP) FOR FRESH MARKET AND FREEZING

1998 ◽  
pp. 403-410
Author(s):  
. ◽  
M. Schiavi ◽  
G. Vitelli ◽  
A. Maestrelli ◽  
E. Forni ◽  
...  
Keyword(s):  
Brassica Oleracea ◽  
Fresh Market ◽  
Brassica Oleracea L

scholarly journals Effect Of Plant Spacings On The Performance Of Hybrid Cabbage (Brassica Oleracea Var. Capitata) Varieties

1970 ◽  
Vol 36 (3) ◽  
pp. 495-506 ◽  
Author(s):  
M Moniruzzaman
Keyword(s):  
Brassica Oleracea ◽  
Agricultural Research ◽  
Pooled Analysis ◽  
Research Station ◽  
Plant Spacing ◽  
Head Weight ◽  
Hill District ◽  
Hybrid Variety ◽  
Head Height ◽  
Early Harvest

A field experiment on cabbage (Brassica oleracea var. capitata) comprising two plant spacings viz. 60 × 40 cm and 60 × 45 cm and ten hybrid cabbage varieties viz. Green Rich, Green-621, Green Coronet, Summer Warrior, Rare Ball, Atlas- 70, Southern treasure, Laurels, K-K Cross and K-S Cross was conducted during 15 October to 12 February of 2005-07 at the Agricultural Research Station, Raikhali, Rangamati Hill District to find out the optimum plant spacing and suitable cabbage variety(s). The wider spacing of 60 × 45 cm resulted in significantly maximum number of folded leaves and head weight (without unfolded leaves) in comparison to closer spacing of 60 × 30 cm. The variety Green Coronet showed the highest plant height, number of unfolded leaves, length of the biggest loose leaf, widest leaf, head height, and head weight (with unfolded leaves).This variety took the highest duration (119 days), while Green- 621 took the lowest duration for harvest (105 days). Although Green Coronet grew vigorously, it did not produce the highest head yield. All the varieties had good head compactness except Laurels and Green Coronet which had medium and less compactness, respectively. The combination of 60 × 30 cm spacing with variety Southern Treasure and K-S cross produced the highest head diameter, but wider spacing of 60 × 45 cm accompanied by Southern Treasure produced the highest head weight without unfolded leaves followed by K- K Cross in both the years. The pooled analysis showed the highest marketable head yield (73.32 t/ha) in the combination of 60 x 40 cm spacing with K- K Cross, which was closely followed by Southern Treasure (71.71 t/ha) and Laurels (71.56 t/ha). The variety Green-621 was found suitable for early harvest with reasonable yield (67.82 t/ha). Keywords: Cabbage; Brassica oleracea var. Capitata; hybrid variety; spacing; head yield; Rangamati. DOI: http://dx.doi.org/10.3329/bjar.v36i3.9277 BJAR 2011; 36(3): 495-506

TOLERANCE OF BRUSSELS SPROUTS TO HIGH BORON LEVELS

1987 ◽  
Vol 67 (1) ◽  
pp. 205-207 ◽  
Author(s):  
UMESH C. GUPTA ◽  
J. A. CUTCLIFFE ◽  
RENALD CORMIER
Keyword(s):  
Key Words ◽  
Brassica Oleracea ◽  
Leaf Tissue ◽  
Field Studies ◽  
Eastern Canada ◽  
Brussels Sprouts ◽  
Application Rates ◽  
High Boron ◽  
Brassica Oleracea L

Boron application rates as high as 8 and 16 kg ha−1 were not toxic to Brussels sprouts (Brassica oleracea L. ssp. gemmifera). These rates resulted in leaf tissue B levels of 123 and 161 μg g−1 and of 7.6 and 9.1 μg HWS B g−1 soil, respectively. Rates of 8–16 kg B ha−1 would, however, be seriously toxic to many crops. It is therefore strongly recommended that rates of B applied to Brussels sprouts should not exceed 2 kg ha−1. Such B applications should eliminate B deficiency in most crops and would not pose a threat of B toxicity to crops grown in the following year. Key words: Eastern Canada, Brussels sprouts yields, field studies, boron

scholarly journals Effect of plant density on the growth, development and yield of brussels sprouts (Brassica oleracea L. var. gemmifera L.)

2014 ◽  
Vol 67 (4) ◽  
pp. 51-58 ◽  
Author(s):  
Victor Alekseevich Turbin ◽  
Artem Siergiejevicz Sokolov ◽  
Edyta Kosterna ◽  
Robert Rosa
Keyword(s):  
Brassica Oleracea ◽  
Plant Density ◽  
Maximum Yield ◽  
Important Variable ◽  
Marketable Yield ◽  
Brussels Sprouts ◽  
Head Formation ◽  
Stalk Diameter ◽  
Growth Development ◽  
Brassica Oleracea L

Plant density is an important variable for achieving maximum yields and uniform vegetable maturity. Optimal plant density can be achieved by establishing appropriate distances both between the rows as well as in the rows of plants. The experiment was carried out between 2010–2012 at the experimental field of the Crimean Agrotechnological University in Simferopol, Ukraine. The experiment was established as randomised blocks with four replications. This study aimed to determine the effect of plant density on the growth, development and yield of Brussels sprouts. Increasing the area per plant resulted in a shortening of the time to the beginning of head formation, technical maturity and harvest. In all study years, increasing the distance between plants caused an increase in leaf assimilation area, stalk diameter and the number of heads per plant, however, the height of plants was lower. The most favourable parameters characterising marketable yield were found at an area per plant of 0.56 m<sup>2</sup>, however, the maximum yield from 1 ha (determining the profitability of the cultivation) was found at an area of 0.49 m<sup>2</sup> per plant.

Effect of nitrogen and potassium on the yield and quality of irrigated Brussels sprouts (Brassica oleracea L. var. gemmifera) cvv. Roger and Oliver grown in South Australia

1996 ◽  
Vol 36 (7) ◽  
pp. 877 ◽  
Author(s):  
CMJ Williams ◽  
NA Maier ◽  
MJ Potter ◽  
GG Collins
Keyword(s):  
Brassica Oleracea ◽  
Sandy Loam ◽  
Total Yield ◽  
Maximum Yield ◽  
South Australia ◽  
Sprinkler Irrigation ◽  
Yield Response ◽  
Brussels Sprouts ◽  
Silty Loam ◽  
Brassica Oleracea L

This study was conducted to assess the effects of nitrogen (N) and potassium (K) on the yield and size distribution of Brussels sprouts (Brassica oleracea L. var. gemmifera) grown with sprinkler irrigation in the Mt Lofty Ranges, South Australia. The cultivars grown were Oliver and Roger which are early and mid season types, respectively. Yields of swollen axillary buds or Brussels sprouts were assessed over 4-7 harvests. Five rates of N (0, 125, 250, 375, 600 kg/ha) with 3 rates of K (0, 150, 300 kg/ha) were applied over 8 side-dressings during the 7-8-month cropping period in randomised block experiments. Four experiments were conducted during 1992-93 (sites 1 and 2) and 1993-94 (sites 3 and 4) on silty loam, loam and sandy loam soils. The effect of N and K on sprout colour was determined at sites 3 and 4. Thiocyanate concentrations in sprouts and the bitterness of sprouts, from the nil and highest K treatment, and from plants in the crop adjacent to the experimental area, were determined for sites 1 and 2. In 3 of the 4 experiments, applied N significantly (P<0.001) increased total yield of sprouts harvested. Yield increases due to applied N ranged from 51 to 78%. At site 1 (cv. Oliver), there was no yield response to applied N but at sites 2 and 4 (cv. Roger) and site 3 (cv. Oliver), 319, 377 and 383 kg N/ha, respectively were required for 95% maximum yield. At responsive sites, application of N significantly increased both yield of sprouts at all harvests except harvest 1, and yield of 20-<30 and 30-<40 g sprouts, which are the preferred size ranges. Increasing rates of N significantly (P<0.05) increased yield of 240 g or large sprouts at all 3 responsive sites. The effect of applied N on sprout colour was inconsistent. At site 4, application of N significantly (P<0.001) increased the mean colour rating of sprouts, in contrast, at site 3 the effect was not significant (P>0.05). At both sites, mean colour ratings decreased during the harvest period irrespective of N applied. Total yield, size and colour of sprouts were not significantly (P>0.05) affected by rate of applied K at any site. It was concluded that extractable K concentrations of 140-260 mg/kg in the surface (0-15 cm) soils were adequate and not limiting yield. At site 1, thiocyanate concentration in sprouts and sprout bitterness increased significantly (P<0.001) when the highest rate of K2SO4 was applied. At site 2, which had received higher rates of sulfate-based fertilisers in previous years, the effect was not significant (P>0.05). This finding suggests that application of high rates of K2SO4 to Brussels sprouts should be avoided to ensure bitterness does not adversely affect the marketability of sprouts.

Tronchuda cabbage (Brassica oleracea L. var. costata DC) leaf free amino acid profile

Planta Medica ◽  
2008 ◽  
Vol 74 (09) ◽  
Author(s):  
BM Silva ◽  
AP Oliveira ◽  
DM Pereira ◽  
C Sousa ◽  
RM Seabra ◽  
...  
Keyword(s):  
Amino Acid ◽  
Brassica Oleracea ◽  
Free Amino Acid ◽  
Free Amino ◽  
Amino Acid Profile ◽  
Tronchuda Cabbage ◽  
Brassica Oleracea L

Pengaruh teknik pengolahan terhadap kandungan beta-karoten pada brokoli (Brassica oleracea L.)

2019 ◽  
Vol 2 (2) ◽  
pp. 133
Author(s):  
Mario Febrianus Helan Sani ◽  
Setyowati Setyowati ◽  
Sri Kadaryati
Keyword(s):  
Brassica Oleracea ◽  
Brassica Oleracea L

Latar Belakang: Beta-karoten merupakan salah satu isomer karoten yang bisa ditemukan pada sayuran berwarna hijau tua atau kuning tua (seperti wortel dan brokoli). Brokoli merupakan sayuran yang memiliki kandungan beta-karoten yang cukup tinggi, yaitu 623 IU/100 gram. Namun, proses pengolahan brokoli menjadi hidangan dapat menurunkan kandungan beta-karotennya. Tujuan: Mengetahui pengaruh teknik pengolahan terhadap kandungan beta-karoten pada brokoli. Metode: Jenis penelitian ini adalah observational di laboratorium. Penelitian ini menggunakan rancangan acak sederhana dengan dua kali pengulangan dan satu unit percobaan. Teknik pengolahan yang dilakukan adalah merebus, mengukus, dan menumis. Brokoli mentah digunakan sebagai kontrol. Penelitian dilakukan pada bulan Februari–Maret 2017. Analisis kadar beta-karoten dilakukan di Laboratorium Chem-mix Pratama Yogyakarta dengan metode spektrofotometri. Hasil: Kadar beta-karoten tertinggi terdapat pada brokoli mentah diikuti dengan brokoli yang ditumis, dikukus dan direbus. Persen penurunan kadar beta-karoten yang direbus, dikukus dan ditumis dibandingkan dengan brokoli mentah masing-masing sebesar 45,87%, 33,52% dan 22,25%. Ada penurunan kadar beta-karoten yang signifikan setelah direbus, ditumis, maupun dikukus dibandingkan dengan brokoli segar (p<0,05). Kesimpulan: Kadar beta-karoten pada brokoli mengalami penurunan setelah dilakukan pengolahan dengan cara direbus, dikukus, dan ditumis. Merebus mengakibatkan penurunan kadar betakaroten terbanyak dibandingkan dengan kedua proses lainnya.

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