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  • Articles  (14)
  • growth
  • Springer  (14)
  • American Chemical Society
  • 1995-1999  (14)
  • 1995  (14)
  • Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition  (14)
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  • Articles  (14)
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Publisher
  • Springer  (14)
  • American Chemical Society
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  • 1995-1999  (14)
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Topic
  • 1
    Electronic Resource
    Electronic Resource
    Effect of P supply upon seasonal growth and internal cycling of P in Sitka spruce (Picea sitchensis(Bong.)Carr.) seedlings (1995)
    Springer
    Plant and soil 168-169 (1995), S. 313-317 
    Details
    ISSN: 1573-5036
    Keywords: growth ; internal cycling ; partitioning ; phosphorus ; 32P ; Sitka spruce
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The availability of phosphorus in many UK forest soils limits growth of Sitka spruce (Picea sitchensis (Bong.) Carr.). Efficient cycling of P within such systems is therefore necessary for sustained tree growth. Internal cycling of P is an important component of the overall P cycle in forests and the current work aims to quantify the impact of P nutrition on internal cycling and seasonal growth of Sitka spruce. Two-year old seedlings of Sitka spruce were grown in sand culture in the glasshouse for one year. Two treatments were imposed in which trees received either a complete nutrient solution from which P was excluded (-P) or one in which P was applied as labelled 32P (+P). Internal cycling of P was measured directly in plants which had received no P and by difference in those which received 32P. The contrasting P treatments produced an eight-fold difference in P content and a three-fold difference in tree growth between May and October. Root:shoot ratios increased during the growing season from 0.29 to 0.38 and from 0.29 to 0.52 in +P and-P treatments, respectively. In both treatments P was translocated from old shoots to support new shoot growth. P supply did not affect the amount of P remobilised but there was evidence that the rate of remobilisation may have been affected. The partition of remobilised P was affected by current P supply and differed from the partition of current P uptake. Results are compared to those from studies of growth and internal cycling of nitrogen in Sitka spruce.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00029343
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  • 2
    Electronic Resource
    Electronic Resource
    Effects of water and nutrient applications in a Scots pine stand to tree growth and nutrient cycling (1995)
    Springer
    Plant and soil 173 (1995), S. 299-310 
    Details
    ISSN: 1573-5036
    Keywords: atmospheric deposition ; balanced nutrition ; excess NH4 ; growth ; nutrient cycling ; Pinus sylvestris L. ; soil acidification
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract In a Scots pine forest stand, demineralized water and a complete set of nutrients with water were applied to the soil by means of frequent irrigation for four years in order to eliminate water and nutrient shortage of the trees. Apart from this optimization, dissolved (NH4)2SO4 was irrigated at a rate of 120 kg N ha-1 y-1 to create a situation of N excess. Effect of treatments on tree growth and chemical composition of soil water and vegetation were monitored. From the first treatment year onwards basal area growth increased by ca. 35% as a result of the increased water supply. Nutrient applications increased K and P concentrations in pine needles immediately, but growth was enhanced only in the fourth treatment year and coincided with an improved K supply. Most of the applied P and K was retained in the soil, and only 6% was recovered in the vegetation. Tree nutrient status did not respond on Ca and Mg applications, whereas Ca and Mg seepage losses were increased with ca. 5 kg ha-1 y-1. The applied NH4 was mostly retained in the 0–20 cm surface soil and caused a drastic increase of Al in soil solution. Tree growth was stimulated initially by extra NH4, but was hampered after three years obviously because of a decreased P nutrition. The applied base cations were absorped to the soil and the accompanying anions were leached, thus temporarily increasing the acidification of the soil solution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00011468
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  • 3
    Electronic Resource
    Electronic Resource
    Mycorrhizal dependency of banana (Musa acuminata, AAA group) cultivar (1995)
    Springer
    Plant and soil 176 (1995), S. 183-187 
    Details
    ISSN: 1573-5036
    Keywords: banana ; Glomus sp. ; growth ; nutrition ; relative mycorrhizal dependency
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Seven banana cultivars (Musa acuminata, AAA group) were inoculated with two species of vesicular arbuscular mycorrhizal (VAM) fungi (Glomus mosseae and Glomus macrocarpum) in a greenhouse experiment. Inoculated plants had generally greater shoot dry weight and shoot phosphorus concentrations compared to the noninoculated plants. A great variation in dependency on mycorrhizal colonization was observed among the banana cultivars. Cv. Williams showed the highest relative mycorrhizal dependency (RMD) and cv. Poyo the lowest. For all the cultivars studied, inoculation with G. macrocarpum resulted in the highest RMD values. Both root dry weight and root hair length or density of the noninoculated plants were inverserly correlated with the RMD values of cultivars.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00017688
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  • 4
    Electronic Resource
    Electronic Resource
    Possible interference of fertilization in the natural recovery of a declining sugar maple stand in southern Quebec (1995)
    Springer
    Plant and soil 168-169 (1995), S. 471-480 
    Details
    ISSN: 1573-5036
    Keywords: fertilization ; growth ; maple decline ; nutrient status
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract A five year study was conducted in a 100–120 year old even-aged sugar maple stand in southern Quebec (46°07′N 73° 56′W; 305 m altitude) to explore the effect of different fertilization formulations aimed at 1) correcting the most common nutrient deficiencies observed in declining maple stands (K and Mg), 2) decreasing soil acidity, and 3) simulating enrichment with atmospheric N. Seven fertilizer mixtures were applied in the spring of 1987: 400 kg ha-1 of K2SO4, CaCO3, CaMg(CO3)2, (NH4)2SO4, complete fertilizer (“Maplegro”) and 800 kg ha-1 of an equal mixture of K2SO4+CaCO3 or K2SO4+CaMg(CO3)2. The site was divided into twenty-four 25×25 m plots and treatments including control were replicated three times. Leaves and soils (organic and mineral) were sampled in 1987, 1988 and 1991. Trees were cored at 1.2 m to measure their response in diameter growth. The application of K2SO4+CaMg(CO3)2 was the only treatment that significantly increased (+13%) the average growth rate over the five year period after fertilization. The application of (NH4)2SO4, “Maplegro”, CaMg(CO3)2 and K2SO4 reduced growth relative to the control for the five year period by 29, 24, 20 and 12 %, respectively. Positive and negative effects on growth can be explained mainly in terms of changes in leaf K. Both the application of Maplegro and (NH4)2SO4 increased soil P availability. Overall, the rate of growth showed a cubic pattern of change over the 5 year period with peaks in 1988 and 1991. Trees in control plots went from a limiting foliar status of Ca and Mg, and surplus N in 1987 to a surplus of Ca and Mg, and lower N concentration in 1991. Our results suggest that nutrient deficiencies observed at our site were associated with a disturbance of the biogeochemical cycle of nutrients rather than soil nutrient depletion.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00029359
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  • 5
    Electronic Resource
    Electronic Resource
    Plant nutrition and growth: Basic principles (1995)
    Springer
    Plant and soil 168-169 (1995), S. 15-20 
    Details
    ISSN: 1573-5036
    Keywords: growth ; nutrition ; reference values ; relative addition/uptake/growth rate ; steady-state
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Strictly controlled experiments with plants, acclimatized under steady-state conditions and grown for a sufficiently long time period to get reliable and representative measurements, are necessary to obtain plant responses in precise terms (reference values). It is then possible to reproduce and compare experimental results with a high accuracy and to establish fundamental plant properties in an unambiguous and unifying terminology. Two kinds of growth determining factors can be distinguished: 1) Mass transport, i.e. variables that express flux rates of carbon and mineral nutrients in relation to plant size and requirements (relative addition and uptake rates). These factors influence the relative growth rate, one at a time (Liebig's law of the minimum). 2) Factors that influence the mass transports, i.e. non-elemental resources, e.g. light and water availability, and modulators, e.g. genome, nutrient status and temperature. These factors interact in orthogonal relationships with each other and can be specified in normalized terms when the optimum value is known.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00029309
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  • 6
    Electronic Resource
    Electronic Resource
    Response of “criollo” maize to single and mixed species inocula of arbuscular mycorrhizal fungi (1995)
    Springer
    Plant and soil 176 (1995), S. 101-105 
    Details
    ISSN: 1573-5036
    Keywords: arbuscular mycorrhiza ; “criollo” ; growth ; inoculation ; maize ; mycorrhizal ; native ; phosphorus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract We tested the effect of two single species inocula and a mixed inoculum of the native population of arbuscular mycorrhizal (AM) fungi on the growth response of “criollo” maize (Zea mays L.). To determine the inocula that produced the highest response on maize growth, we conducted a greenhouse experiment at 3 levels of P fertilization (0, 40 and 80 kg ha−1). Inoculation with Glomus mosseae (Nicolson and Gerdemann) Gerd. and Trappe (LMSS) produced the greatest shoot growth rates at the two lowest P fertilization levels. Inoculation with Acaulospora bireticulata Rothwell and Trappe (ABRT) and the native population (NP) resulted in similar shoot growth rates at all P levels. These rates were higher than the non-mycorrhizal control rate at the lowest P level but lower than the control at the highest P level. Also, ABRT and NP had significantly lower shoot growth rates than the inoculation treatment with G. mosseae at all P levels. The non-mycorrhizal control had the lowest growth rate at the lowest P level but its growth rate increased linearly with increased P fertilization. Inoculation with G. mosseae and A. bireticulata produced similar colonization rates which were lower than the native population colonization rate. There was no correlation between colonization and shoot growth rates.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00017680
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  • 7
    Electronic Resource
    Electronic Resource
    Scarification, fertilization and herbicide treatment effects on planted conifers and soil fertility (1995)
    Springer
    Plant and soil 168-169 (1995), S. 513-522 
    Details
    ISSN: 1573-5036
    Keywords: growth ; nutrient availability ; Pinus strobus ; Picea glauca ; site preparation ; soil organic carbon
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The influences of soil surface modification (blade scarification and plastic mulching), fertilization and herbicide application on soil nutrient and organic carbon content and tree growth and foliar nutrient status were examined after seven years in a study located within the Great Lakes-St. Lawrence forest region of Canada. Plots had been planted with white pine (Pinus strobus L.) and white spruce (Picea glauca [Moench] Voss) seedlings. Light (PAR), soil moisture and temperature were monitored and recorded throughout the growing season. Forest floor and soil mineral (0–20 cm layer) samples were collected from all experimental plots, except those which had plastic mulching. Foliar samples were collected in autumn and analysed for N, P and K and storage compounds. Seedling mortality was 20% higher in unscarified plots. Combined silvicultural treatments increased productivity as much as 14 times, but scarification reduced soil carbon and nutrient capital 2–3 fold. Herbicide application reduced soil carbon by at least 20 %. Foliar nutrient, protein, starch and lipid contents in autumn were little affected by treatment. The future management of such stands in Canada probably will include more shelterwood harvesting and crop rotations, silvicultural systems that are more closely aligned with natural forest succession.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00029364
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  • 8
    Electronic Resource
    Electronic Resource
    Effects of elevated CO2 and nitrogen on nutrient uptake in ponderosa pine seedlings (1995)
    Springer
    Plant and soil 168-169 (1995), S. 535-545 
    Details
    ISSN: 1573-5036
    Keywords: CO2 ; global change ; growth ; nitrogen ; nutrition ; Pinus ponderosa ; soil nutrients
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract This paper reports on the results of a controlled-environment study on the effects of CO2 (370, 525, and 700 μmol mol-1) and N [0, 200, and 400 μg N g soil-1 as (NH4)SO4] on ponderosa pine (Pinus ponderosa) seedlings. Based upon a review of the literature, we hypothesized that N limitations would not prevent a growth response to elevated CO2. The hypothesis was not supported under conditions of extreme N deficiency (no fertilizer added to a very poor soil), but was supported when N limitations were less severe but still suboptimal (lower rate of fertilization). The growth increases in N-fertilized seedlings occurred mainly between 36 and 58 weeks without any additional N uptake. Thus, it appeared that elevated CO2 allowed more efficient use of internal N reserves in the previously-fertilized seedlings, whereas internal N reserves in the unfertilized seedlings were insufficient to allow this response. Uptake rates of other nutrients were generally proportional to growth. Nitrogen treatment caused reductions in soil exchangeable K+, Ca2+, and Mg2+ (presumably because of nitrification and NO3 - leaching) but increases in extractable P (presumably due to stimulation of phosphatase activity). The results of this and other seedling studies show that elevated CO2 causes a reduction in tissue N concentration, even under N-rich conditions. The unique response of N is consistent with the hypothesis that the efficiency of Rubisco increases with elevated CO2. These results collectively have significant implications for the response of mature, N-deficient forests to evevated CO2.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00029366
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  • 9
    Electronic Resource
    Electronic Resource
    Indentification of Acetobacter diazotrophicus, Herbaspirillum seropedicae and Herbaspirillum rubrisubalbicans using biochemical and genetic criteria (1995)
    Springer
    Plant and soil 172 (1995), S. 271-277 
    Details
    ISSN: 1573-5036
    Keywords: Acetobacter ; Herbaspirillum ; growth ; identification ; PCR ; sugarcane
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Nitrogen-fixing Acetobacter diazotrophicus, Herbaspirillum seropedicae and Herbaspirillum rubrisubalbicans colonize sugar cane, and are thought to be capable of supplying high levels of fixed nitrogen to this plant. Eight A. diazotrophicus, two H. seropedicae and four H. rubrisubalbicans isolates were identified and compared by complementary biochemical and genetic methods. Utilization of carbon sources and antibiotic resistance patterns allowed differentiation of A. diazotrophicus from Herbaspirillum species. In order to distinguish strains within A. diazotrophicus species, the polymerase chain reaction was employed, using a Rhizobium meliloti dctA primer under low stringency hybridization conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00011329
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  • 10
    Electronic Resource
    Electronic Resource
    Wheat genotypes differ in Zn efficiency when grown in chelate-buffered nutrient solution (1995)
    Springer
    Plant and soil 176 (1995), S. 307-316 
    Details
    ISSN: 1573-5036
    Keywords: chelate ; deficiency ; genotypic differences ; growth ; screening ; Triticum ; zinc
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Ten Triticum aestivum and two Triticum turgidum conv. durum genotypes were grown in chelate-buffered nutrient solution at Zn supplies ranging from deficient to sufficient (free Zn activities from 2 to 200 pM, pZn from 11.7 to 9.7). The critical level of Zn ion activity in solution for healthy growth of wheat plants was around 40 pM. Genotypes differed in the growth response: those classified as Zn-efficient suffered less reduction of shoot growth and did not change the rate of root growth at a Zn supply quite deficient for Zn-inefficient genotypes. Root growth of Zn-inefficient genotypes increased at deficient Zn supply. The shoot/root ratio was the most sensitive parameter of Zn efficiency; Zn-efficient genotypes showed less reduction in the ratio when grown at deficient compared to sufficient Zn supply. Classification of wheat genotypes into Zn-efficient and Zn-inefficient groups after screening in chelate-buffered nutrient solution corresponded well with classification obtained in field experiments on Zn-deficient soil.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00011795
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  • 11
    Electronic Resource
    Electronic Resource
    Performance of ponderosa pine seedlings under four herbicide regimes in northeast Oregon (1995)
    Springer
    New forests 10 (1995), S. 123-131 
    Details
    ISSN: 1573-5095
    Keywords: broadcast application ; cost effectiveness ; growth ; hexazinone ; spot application ; survival
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The herbicide, hexazinone, was applied four ways over ponderosa pine, 2–0 seedlings planted in northeast Oregon. The four treatments were two broadcast applications, a single broadcast application, a large spot application, and a small spot application. Seedling survival and growth were monitored for five growing seasons. Results indicate that survival more than doubled with either large or small spot applications compared to no application, and either one or two broadcast applications can increase survival an additional 30% over spot applications. Differences in stem volume were substantial, with two broadcast applications yielding more than twice the volume of a single broadcast treatment and more than five times the volume of seedlings treated with spot applications. Trees in small spots were still three times bigger than surviving seedlings in the control. These results are consistent with the concept of competition threshold. Management implications were considered in terms of cost of established seedlings. Although broadcast applications cost more per acre than spot applications, gains in seedling survival, growth and quality offset the additional cost and translate into lower established seedling costs. The cost effectiveness of broadcast applications also may be seen in the elimination of replanting or in-planting requirements and increases in long-term growth potential of the established trees.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00033402
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  • 12
    Electronic Resource
    Electronic Resource
    Heterosis and the metabolism of gibberellin A20 in sorghum (1995)
    Springer
    Plant growth regulation 16 (1995), S. 271-278 
    Details
    ISSN: 1573-5087
    Keywords: gibberellins ; growth ; heterosis ; hybrid vigor ; metabolism ; Sorghum bicolor
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The correlation between gibberellin (GA) metabolism and growth rate was investigated using two Sorghum bicolor inbred lines, Hegari and AT×623, and their heterotic F1 hybrid. Previous studies have demonstrated that this hybrid is taller and has substantially greater shoot dry weights and leaf areas than either parental inbred. [3H]GA20 was applied to the leaf whorl of seedlings and after 24 hours, plants were harvested and separated into roots, shoot cylinders containing the apical meristems, and leaf blades. Chromatographic analyses of metabolites indicated the conversions of [3H]GA20 to [3H]GA1,8 and 29. The conversion of [2H]GA20 to [2H]GA1 was demonstrated by gas chromatography-selected ion monitoring (GC-SIM). Putative glucosyl conjugates of all of the [3H]GAs were also produced and GA8 was identified by GC-SIM following enzymic cleavage of the putative [3H]GA8 glucosyl conjugate fraction. Comparing the genotypes, [3H]GA20 metabolism was more rapid in the shoot cylinders of the hybrid than in the shoot cylinders from inbreds. In the hybrid samples, there was a three-fold increase in the putative conjugate(s) of [3H]GA1 which was the principal metabolite, and increased production of [3H]GA8 and the putative conjugates of [3H]GA29 and [3H]GA8. Conversely, levels of the remaining precursor, [3H]GA20, and its putative conjugate(s) were reduced in the hybrid. The rate of GA20 metabolism was thus positively correlated with growth rate across these sorghum genotypes. This correlation supports a promotive role of GA in the regulation of shoot growth and in the expression of heterosis (hybrid vigor) in sorghum.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00024786
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  • 13
    Electronic Resource
    Electronic Resource
    Underplanting oil palm with cocoa in Ghana (1995)
    Springer
    Agroforestry systems 30 (1995), S. 289-299 
    Details
    ISSN: 1572-9680
    Keywords: bunch weight ; blackpod ; underplanting ; growth ; yield
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Mature oil palms at the Oil Palm Research Institute at Kusi, Ghana were underplanted with cocoa to study the feasibility of mixed cropping of the two crops under West African conditions. The oil palm trees used in this trial were planted in 1970 and had achieved maximum canopy formation. Three triangular spacings of the oil palms used were 8.7, 9.9 and 10.5 m. The cocoa was underplanted in June 1988 at a spacing of 2.4 m triangular using mixed hybrids. There were no significant differences in oil palm yield between plots with cocoa and the controls. There was no appreciable damage to the cocoa trees from falling palm fronds and fruits during harvesting or pruning. Cocoa seedling growth and yield were significantly better under the oil palm spaced at 9.9 or 10.5 m triangular than under oil palm space at 8.7 m triangular.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00705215
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  • 14
    Electronic Resource
    Electronic Resource
    Influence of paclobutrazol on growth and yield of Brassica carinata A.Br. (1995)
    Springer
    Plant growth regulation 16 (1995), S. 121-127 
    Details
    ISSN: 1573-5087
    Keywords: Brassica carinata ; growth ; paclobutrazol ; yield
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Foliar spraying of Brassica carinata (cv. PC 5) with paclobutrazol (PP 333) at 5, 10 and 20 μg ml-1 concentrations, reduced plant height significantly and modified the canopy structure by enhancing the number of branches (primary, secondary and tertiary) and the angle of insertion of primary branches on the main axis. The seed yield per plant also increased mainly due to increase in the number of siliquae per plant. Paclobutrazol increased total dry matter of plants and partitioning coefficients. The leaves in paclobutrazol-treated plants exhibited higher chlorophyll content, and they remained intact on plants for longer than the controls. The seeds from paclobutrazol-treated plants had higher levels of proteins, strarch and total soluble sugars but less total seed oil content.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00029532
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