Response Of Broccoli Research Articles

Response of broccoli, Brassica oleracea var. botrytis to the effect of hybrids and organic fertilizer K-FULV GROWER in some chemical an qualitative characteristics

The experiment was carried out in the greenhouses of the research journal of the College of Agriculture and the Marshes - Dhi Qar University in the Mohiyah area in the city of Nasiriyah during the growth season 2022-2021. The experiment began on 1111 2021 and is dated 110 2 2022. Replicators and two years old. The first factor is the cauliflower cross here, CEZAR and ANAHAR, and the next factor is the Egyptian KFULV GROWT auger taco (11000 1500 1850) km. An experimental unit, and at the end of the experiment, the results of vegetative growth were recorded, and after analyzing the results statistically, the results showed the superiority of the hybrid CEZAR over the hybrid ANAHAR in the Egyptian clash, chlorophyll, phosphorous, potassium, magnesium, and boron. Vitamin C (the rates reached 79.17, 255% and 0.28 00 2.06 49000 001, 1663.79 and 16.74 share 100 upper Uran km from the opening difference concentration 150 are the Arab unit of organic position in the same studied traits, as the results of the statistical analysis showed the presence

Response of broccoli, Brassica oleracea var. botrytis to the effect of hybrids and organic fertilizer K-FULV GROWER in some chemical an qualitative characteristics

Response of broccoli, Brassica oleracea var. botrytis to the effect of hybrids and organic fertilizer K-FULV GROWER in some chemical an qualitative characteristics

Growth and yield response of broccoli to different mulching materials

Growth and yield response of broccoli to different mulching materials

Broccoli yield and dry matter partitioning in response to application of sediment from post-harvest washing of mussels

The response of broccoli (Brassica oleracea L., ‘Arcadia’) yield to application rates of mussel sediment (MS) from post-harvest washing as source of nitrogen (N) was evaluated in a 2 yr (2011–2012) study in Bouctouche, NB, Canada. Treatments in 2011 included a control (no amendment or fertilizer), three rates of MS (28 000, 42 000, and 56 000 L·ha−1 equivalent to 14.7, 22.0, and 29.4 kg N·ha−1) and an inorganic N fertilizer (135 kg N·ha−1). In 2012, all plots were split, with just half of each plot receiving a repeat treatment application. Fertilizer and MS increased total fresh yields by 115% and 29%, respectively, compared with the control, with no significant differences between MS application rates. Total dry matter yield followed the same order as total fresh yield, but only at P < 0.10 in either years. Marketable yield was not affected by treatments in 2011 or by their residual effect in 2012, while it was greater in fertilizer compared with other treatments after 2 yr repeated application. The greatest head compactness and the lowest yellow-eye were measured in fertilizer treatment in both years, while no differences among MS treatments and the control were observed. The effect of treatments on total dry biomass and its partitioning in the broccoli plant was significant (P < 0.05) in both years. Yield and biomass data revealed that 42 000 L MS·ha−1 application rate plus supplemental N sources can be recommended under the soil and climate conditions of the Canadian Maritimes. The concentration of salts in MS is an application rate limiting factor.

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The literature has confirmed the efficacy of sulphur (S) when growing Brassicaceae. However, there are no studies with this nutrient on broccoli. Therefore, the aim of this study was to evaluate the response of broccoli (hybrid Avenger) to sulphur rates applied at top dressing in the presence or absence of organic compost at planting. The experimental design was a randomized complete block, with ten treatments (5 x 2 factorial design) and four repetitions. Treatments consisted of five S (ammonium sulphate) rates (0, 31, 62, 93 and 124 kg ha-1); with organic compost (100 t ha-1) in planting or without organic compost in planting. After harvesting, head fresh matter, head diameter and number of leaves were evaluated. In general, head diameter, head height and fresh matter increased in all treatments by adding organic compost. A quadratic effect was observed for head fresh matter and head height by applying organic compost (100 tha-1), as the maximum values were 620.6 g and 17.2cm at the rate of 66.9 and 49.2 kg S ha-1, respectively. Key words: Brassica oleracea var. italica, fertilization, sulphate.

The response of broccoli (Brassica oleracea convar. italica) varieties on foliar application of selenium: uptake, translocation, and speciation

A model small-scale field experiment was set up to investigate selenium (Se) uptake by four different varieties of broccoli plants, as well as the effect of Se foliar application on the uptake of essential elements for plants calcium (Ca), copper (Cu), iron (Fe), potassium (K), magnesium (Mg), manganese (Mn), phosphorus (P), sulfur (S), and zinc (Zn). Foliar application of sodium selenate (Na2SeO4) was carried out at two rates (25 and 50 g Se/ha), and an untreated control variant was included. Analyses of individual parts of broccoli were performed, whereby it was found that Se in the plant accumulates mainly in the flower heads and slightly less in the leaves, stems, and roots, regardless of the Se rate and broccoli variety. In most cases, there was a statistically significant increase of Se content in all parts of the plant, while there was no confirmed systematic influence of the addition of Se on the changing intake of other monitored elements. Selenization of broccoli leads to an effective increase in the Se content at a rate of 25 g/ha, whereas the higher rate did not result in a substantial increase of Se content compared to the lower rate in all varieties. Therefore, the rate of 25 g/ha can be recommended as effective to produce broccoli with an increased Se content suitable for consumption. Moreover, Se application resulted in an adequate increase of the main organic compounds of Se, such as selenocystine (SeCys2), selenomethionine (SeMet), and Se-methylselenocysteine (Se-MeSeCys).

Response of broccoli to organic amendments and accumlation of heavy metals in it

No abstract available DOI: http://dx.doi.org/10.3329/bjsr.v25i1.13045 Bangladesh J. Sci. Res. 25(1): 1-10, 2012

Postharvest quality response of broccoli florets to combined application of 1-methylcyclopropene and modified atmosphere packaging

Broccoli is rich in health-promoting compounds such as ascorbic acid and glucosinolates. However, amount of such compounds inevitably decrease along with the storage. This study was conducted to investigate the effects of 1-methylcyclopropene (1-MCP) and Modified Atmosphere Packaging (MAP) treatments alone or in combination on postharvest life and quality of broccoli heads during cold storage. MAP and 1-MCP+MAP significantly reduced weight loss, delayed surface color changes and chlorophyll breakdown, maintained visual quality, ascorbic acid, total phenol, soluble solid contents and titratable acidity compared with control as well as 1-MCP treatment. In 1-MCP plus MAP treated florets, approximate 47% and more chlorophyll and 24% more total phenol contents were found compared to control florets. 1-MCP plus MAP application better performed in maintaining the quality of broccoli florets during 28-day-storage. Overall results revealed that combined treatment can be recommended for commercial broccoli storage at 0 °C.

Azotobacter Soil Amendment Integrated with Cow Manure Reduces Need for NPK Fertilizers in Sprouting Broccoli

ABSTRACT Nutrient removal by crops from soil sometimes exceeds replenishment with fertilizers, causing a negative balance of nutrients in soils and ultimately resulting in multi-nutrient deficiencies. A field experiment was conducted during summer season of 2003 and 2004 at Lahaul and Sapiti, India, situated in high hill dry temperate zone to investigate the response of broccoli (Brassica oleracea var. italica L.) to integrated nutrient management using organic manure and Azotobacter along with synthetic fertilizers. There were 12 treatments; i.e., three levels of an NPK synthetic fertilizer (50, 75, 100%) integrated with two levels each of cow manure (CM; 10 and 20 Mt·ha−1) and inoculation with Azotobacter (seedling dipped in culture and no inoculation) in combination. Marketable head yield increased linearly with increasing application of 10 to 20 Mt·ha−1 of CM in combination with increasing levels of NPK fertilizers and Azotobacter inoculation. Integration of Azotobacter with the recommended practice (100% NPK + 20 Mt·ha−1 of CW) produced the highest marketable head yield over the recommended practice of 20 Mt·ha−1 CM + 100% NPK. Moreover, this treatment combination resulted in maximum leaf width, apical and lateral curd weight along with total yield/plant in both years and maximum net returns with a benefit:cost ratio of 3.49. Integration of Azotobacter with 75% NPK and 20 MT·ha−1 of CM gave marketable head yield similar to the 100% recommended dose of NPK, resulting in the net saving of 25% NPK fertilizers. Nutrient uptake in plant tissues and nutrient build-up in soil followed almost similar trends. An application of 100% NPK + Azotobacter inoculation+20 Mt·ha−1 of CM provided the highest increase in the contents of organic C and available N, P, and K, 36, 32, 79, and 19%, respectively, over their initial status in the soil. About 31, 8.4, and 12.5 kg·ha−1 of N, P, and K, respectively, can be saved in broccoli production if CM at 20 Mt·ha−1 and Azotobacter are used in combination with synthetic fertilizers.

The Response of Broccoli and Cabbage to Soils with Different Fertilization Histories

The purpose of this study was to investigate the growth, nitrogen (N) uptake and distribution, nitrate nitrogen (NO3(superscript -)-N) content of broccoli and cabbage as affected by different fertilizers, grown in soils with different fertilization histories. The field used in this study is located in Chi-san, at the Kaohsiung District Agricultural Improvement Station, in Southern Taiwan. The soils in this study were subjected to long-term studies, and were treated with organic fertilizer only (OF), chemical fertilizer only (CF), or a combination of organic and chemical fertilizers (IF), all of which were applied continuously. After transplantation, broccoli and cabbage plants were harvested at 75 and 70 days, respectively. The plants were separated into roots, leaves (wrapper leaves for cabbage), and heads. After drying to a constant weight at 65℃, the dry weight, nitrate N, total N, and insoluble N were determined, respectively. The results showed that the growth and N uptake of broccoli and cabbage from the OF-treated plot were the same or even higher than those from the CF and IF plots. The N use efficiency (NUE) for the OF plot was also higher. The NO3(superscript -)-N concentrations of both the entire broccoli and cabbage that received OF treatment were lower than those which received CF treatment. The total N and soluble N concentrations of organic fertilizer-treated broccoli were lower than those of the chemical fertilizer-treated ones; the reverse was true for cabbage. In conclusion, after 11 years of applying organic fertilizer and establishing the soil fertility, the crop yield of OF treatment, in which the application of N fertilizer was based on the mineralization capacity, can be as high as or higher than that of CF treatment, resulting in lower NO3(superscript -)-N concentrations in the plants.

The response of late storage cabbage and broccoli to applications of sulphur and calcium

Sulphur may become deficient in intensive vegetable production systems that rely on chemical fertilizers. Yield of cole crops in response to sulphur fertilization has not been evaluated under Ontario conditions. Since calcium is linked to clubroot disease and tipburn, the sulphur fertilizer source is an important consideration. Rates of sulphur and calcium were compared for effects on yield using Novacal (a prilled calcium sulphate product), calcium nitrate and potassium sulphate for 3 yr for cabbage and 2 yr for broccoli on both sand and loam soils. There appeared to be no difference in yield from fertilizer source of sulphur or calcium. Applications of sulphur increased yield of Huron late storage cabbage averaged over years and soil with a mathematical maximum occurring at 55 kg S ha-1. Soil tests indicated levels of approximately 13–19 µg g-1 for sulphur prior to treatment. Yield of cabbage increased proportionately to calcium application averaged over 3 yr. No effect of treatment was observed on broccoli. Thus, soil levels of sulphur were probably limiting for late cabbage but not for broccoli. Sulphur shortage or deficiency appears to exist for late storage cabbage grown in Ontario. Lack of response of broccoli and no calibrated soil test for either element suggest that crops have to be evaluated individually under field conditions for sulphur fertilizer requirements. Key words: Cabbage, broccoli, calcium, sulphur, nutrition, yield

Effect of Temperature and Cultivar on the Response of Broccoli and Collard (Brassica oleracea) to Oxyfluorfen

Growth chamber studies were conducted to investigate the effect of temperature, cultivar, and leaf wax content on the response of broccoli and collard to oxyfluorfen. Broccoli cultivars grown under cool temperatures (15/10 C) were more susceptible to preemergence (PRE) application of oxyfluorfen, and broccoli and collard cultivars grown at cool temperatures were more susceptible to postemergence (POST) application of oxyfluorfen than cultivars grown under warm temperatures (25/20 C). Differences between the tolerant cultivar ‘Pinnacle’ and the susceptible cultivar ‘Packman’ in response to PRE oxyfluorfen application were more distinct at warm temperatures than at cool temperatures. Although the broccoli and collard cultivars used in the POST study varied in leaf wax content, differences in wax content did not appear to be as important as other genetic factors in the differential response to POST oxyfluorfen application between cultivars.

Heat Shock Response of Brassica oleracea L. (Broccoli)

The response of broccoli ( Brassica oleracea var. Italica ) to rapid changes in temperature has been examined by labelling proteins in vivo . Time course analysis using both one and two-dimensional gel electrophoresis reveals that rapid changes in protein synthesis occur when leaf material is subjected to temperature stress. One-dimensional gel analysis demonstrates at least 14 polypeptides are preferentially synthesized at 37 °C when compared to 20 °C. Two-dimensional gel analysis of these in vivo labelled proteins demonstrate that many of these 14 proteins induced at 37 °C are resolved into more components which are isoelectric variants of the same molecular weight protein. There are upwards of 30 proteins induced at 37 °C visible on two-dimensional gels, and based on comparison with heat-induced proteins from other plants, we have identified these proteins in broccoli as heat shock proteins.