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CORRELACIóN ENTRE PROPIEDADES ANATóMICAS, RESISTENCIA A FLEXIóN ESTáTICA Y ENERGíA REQUERIDA PARA EL CORTE DE LA CA?A DE AZúCAR (Saccharum officinarum L.)
González Sánchez,Hugo Alberto; Toro Betancur,Alejandro; álvarez Mejía,Fernando; Cortés Marín,Elkin Alonso;
Revista Facultad Nacional de Agronomía, Medellín , 2008,
Abstract: the microstructure, anatomical structure, bending resistance and the energy required to cut stems of three varieties of sugar cane cultivated in the valle del cauca ( colombia ), were studied in order to have useful data for the development of cutting blades. microestructural and anatomical characterization tasks were performed by optical microscopy ( om), and scanning electron microscopy (sem). the physical and mechanical properties were determined after adaptation of astm standards (which were developed for wood), while the consumption of energy during cutting was evaluated by using a modified charpy type impact pendulum. the fibers and silica particles showed different geometry and distribution in the stems of the three studied varieties, and a relation was established between the microstructure of the stems and the energy required to cut them in the modified charpy pendulum. generally speaking, cutting the internodes required higher specific energy than cutting the nodes, and the use of blades with cutting angle of 20° led to lower levels of energy consumption. also, a relation of proportionality between the effective cross-sectional area of fibers (atef) and the specific energy consumed in cutting, as well as between the flexibility coefficient and the modulus of elasticity in bending were found.
STUDIES ON THE MYCOFLORA IN THE RHIZOSPHERE OF SUGARCANE (SACCHARUM OFFICINARUM L.).  [cached]
RB Deshmukh*, SS Dange, PV Jadhav, SS Deokule and NA Patil
International Journal of Bioassays , 2013,
Abstract: The rhizosphere mycoflora of two varieties of sugarcane (Saccharum officinarum L.) was studied qualitatively and quantitatively from sugarcane plantation in Baramati tehsil. Two sugarcane varieties viz. CO 86032 and CO 0265 were investigated. With age activities of fungi increased. When near maturity the number of colonies declined. Isolated fungi from both rhizosphere and non rhizosphere soil were dominated by Aspergillus, Alternaria, and Rhizopus. Fungi including Fusarium spp., and dark sterile mycelia were present in higher frequencies on root surfaces than in the surrounding soils. Although the results were slightly varying the number and the type of fungal colonies in both the varieties were nearly same.
DIVERGENCE ANALYSIS AND ASSOCIATION OF SOME ECONOMICAL CHARACTERS OF SUGARCANE (SACCHARUM OFFICINARUM L.)  [cached]
Shehzad A. Kang,Muhammad Noor,Farooq A. Khan,Frasat Saeed
Journal of Plant Breeding and Genetics , 2013,
Abstract: The experiment was carried out in the Department of Plant Breeding and Genetics, University of Agriculture, Faisalabad to examine the genetic variability and contribution of some morphological characters for cane yield and sucrose %age. Eleven varieties of sugarcane (Saccharum officinarum L.) were evaluated for correlation, metroglyph analysis and divergence analysis. Data on various economic important traits like plant height, cane height, number of tillers /plant, number of leaves/plant, leaf area, cane diameter, cane weight, dry matter contents, juice contents, sucrose value and brix value was recorded. The results pertaining to analysis of variance elucidated highly significant differences among the accessions for all the traits except number of leaves/plant and considerable range of variability. Correlations among various traits were computed and found that association of brix value with cane diameter, leaf area, dry matter contents and sucrose value was positive and significant at genotypic level and positive but highly significant at phenotypic level. Correlation of brix value with number of leaves, cane weight and beggas weight was positive but significant at genotypic and non- significant at phenotypic level. Metroglyph analysis showed that eight clusters had been made with different index scores. Divergence analysis showed that genetic dissimilarity was highest between No.46 and SPF-232 and was lowest among SPSG-26 and COJ-84. Brix value had the highest contribution to genetic divergence followed by cane height and cane weight due to genetic dissimilarity among the genotypes for these traits. The cane diameter and sucrose value had no contribution to the total genetic divergence due to genetic similarity among the genotypes.
HPLC microfractionation of flavones and antioxidant (radical scavenging) activity of Saccharum officinarum L.
Vila, Fabiana C.;Colombo, Renata;Lira, Tatiana O. de;Yariwake, Janete H.;
Journal of the Brazilian Chemical Society , 2008, DOI: 10.1590/S0103-50532008000500014
Abstract: the antioxidant activity of sugarcane (saccharum officinarum l.) juice towards dpph reagent was determined (ec50) and the main compounds with radical scavenging activity in juice and leaves extracts were identified by hplc-uv/pad analysis combined with hplc microfractionation monitored by tlc using β-carotene and dpph as the detection reagents. in sugarcane leaves, luteolin-8-c-(rhamnosylglucoside) (1) was the most important compound with radical scavenging activity; in sugarcane juice, the flavones diosmetin-8-c-glucoside (2), vitexin (3) schaftoside (9), isoschaftoside (10) and 4',5'-dimethyl-luteolin-8-c-glucoside (11) were the most relevant compounds. the content of juice flavonoids (0.241 ± 0.001 mg total flavonoids/ml juice), comparable to other food sources of flavonoids, suggest the potential of sugarcane as a dietary source of natural antioxidants. however, the low antioxidant ability of sugarcane juice (ec50 = 100.2 ± 2.6 g l-1) also points to the need for further studies about the dietary intake of sugarcane flavonoids and its effects on human health.
Realtionship between Yield and Yield Contributing Traits in Sugarcane (Saccharum officinarum L.)  [PDF]
Riaz Noor Panhwar,Haji Khan Keerio,Mubashir Ahmed Khan,Muhammad Aslam Rajpute
Journal of Applied Sciences , 2003,
Abstract: A investigation was undertaken to assess the interrelationship of cane yield and its traits in sugarcane at National Sugar Crops Research Institute, farm Thatta, during 2000-2001. It was observed that cane girth, number of internodes per plant, cane height and millable canes m-2 were positively and highly significantly correlated with cane yield, the regression coefficients for these traits on cane yield were also positive. Multiple correlation and partial regression analysis indicated that cane girth, number of internodes per plant, cane height and millable canes m-2 should be considered in selecting high yielding strains.
Comparative Growth and Yield Performance of Different Cultivars of Sugarcane (Saccharum officinarum L.)  [PDF]
M. Ayub,A.Tanveer,M. Adil Choudhry,M.R. Khalid
Journal of Biological Sciences , 2001,
Abstract: Growth and yield performance of different varieties of sugarcane viz., L-118, BF-166, CO-1321, CP-57-614, HF-152, HF-150, HF-147, BF-162, CO-975 and CP-75-300 was evaluated under field conditions. The growth characteristics like millable canes, cane length, cane diameter and weight per cane varied significantly among the cultivars. The cultivar CP-57-614 produced significantly higher cane yield (110 t ha 1) than all other varieties. The lowest cane yield (51 t ha 1) was obtained from CP-75-300. BF-162 gave the highest sucrose content (19.78%) and commercial cane sugar (13.64%). Keeping in view quality and yield the variety CP-57-614 proved better than rest of the varieties.
Evaluation of Some Sugarcane (Saccharum officinarum L.) Extracts for Immunostimulatory and Growth Promoting Effects in Industrial Broiler Chickens
Mian Muhammad Awais and Masood Akhtar*
Pakistan Veterinary Journal , 2012,
Abstract: Present paper describes the immunostimulatory and growth promoting effects of some sugar cane extracts (SCEs) in broiler chickens. Aqueous extract (AE) from sugar cane (Saccharum officinarum) juice and ethanolic extract (EE) from bagasse were used to demonstrate their effects on lymphoproliferative responses to Phytohemagglutinin-P (PHA-P) and Concanavalin-A (Con-A); antibody response to sheep red blood cells (SRBCs); growth rate and feed conversion ratio (FCR) in experimental chickens as compared to control. Results showed significantly higher (P<0.05) in vitro and in vivo lymphoproliferative responses to Con-A and PHA-P, respectively in chickens administered with SCEs as compared to those in control group. Further, significantly higher (P<0.05) lymphoproliferative responses were detected in chickens administered with EE as compared to chickens administered with AE. Anti-SRBC total Igs, IgG and IgM titers were significantly higher (P<0.05) in chickens of experimental groups administered with SCEs as compared to those of control group; whereas titers were comparable among the experimental groups. The organ-body weight ratios of lymphoid organs were statistically similar in experimental and control groups. Both the experimental groups administered with SCEs showed better FCR and significantly higher (P<0.05) weight gains as compared to control. In conclusion, oral administration of SCEs showed immunostimulatory effects in broiler chickens and resulted in improved feed utilization and decreased amount of food needed for unit gain in body weight.
Economic Assessment of Sugarcane (Saccharum officinarum L.) through Intercropping  [PDF]
Abdul Rehman, Rafi Qamar, Jamshaid Qamar
Journal of Agricultural Chemistry and Environment (JACEN) , 2014, DOI: 10.4236/jacen.2014.33B004
Abstract:

Sugarcane has pronounced importance to provide sugar for more than half of the global population. World population is enhancing day-by-day and production land is in the worst situation. The cultivated land is diminishing rapidly due to urbanization, road construction, and land deterioration. This crisis demands alternate research to raise crop productivity and maximize the economic returns per unit land for feeding the gigantic population. Sugarcane is a long duration crop and gave late net economic return. Intercropping in sugarcane received much attention and need to properly manage for getting higher net return from same unit area. It is becoming popular among farming community due to resourcefully utilization of land. Intercropping has the potential to inspire the farmers to get maximum economic return per acre per annum. For intercropping, wheat, gram, soybean, and potato were used as an intercrop in September-sown sugarcane. Triple row strip planting geometry of sugarcane with four intercropped (SC + Wheat, SC + Gram, SC + Soybean, and SC + Potato) and check with sole SC was used. Sugarcane was planted during September 2011- 12 and 2012-13 at research area University College of Agriculture, University of Sargodha, Pakistan. Randomized complete block design with three replications were used. Results showed that number of millable cane, cane diameter; unstripped and stripped cane yield and crop growth rate was significantly higher in sole sugarcane when compared with different intercrop in 2011-12 while trend was same in 2012-13. Cane diameter and un-stripped cane yield were statistically at par of intercrops SC + Soybean and SC + Potato while stripped cane yield of Sole SC and SC + Potato was statistically at par in 2012-13. In both the year of study, intercrops gave higher land equivalent ratio and net return over sole sugarcane planted while sole sugarcane gave maximum benefit cost ratio compared with other intercrops.

Genetic maps of Saccharum officinarum L. and Saccharum robustum Brandes & Jew. ex grassl
Guimar?es, Claudia T.;Honeycutt, Rhonda J.;Sills, Gavin R.;Sobral, Bruno W.S.;
Genetics and Molecular Biology , 1999, DOI: 10.1590/S1415-47571999000100024
Abstract: genetic analysis was performed in a population composed of 100 f1 individuals derived from a cross between a cultivated sugarcane (s. officinarum `la purple') and its proposed progenitor species (s. robustum `mol 5829'). various types (arbitrarily primed-pcr, rflps, and aflps) of single-dose dna markers (sdms) were used to construct genetic linkage maps for both species. the la purple map was composed of 341 sdms, spanning 74 linkage groups and 1,881 cm, while the mol 5829 map contained 301 sdms, spanning 65 linkage groups and 1,189 cm. transmission genetics in these two species showed incomplete polysomy based on the detection of 15% of sdms linked in repulsion in la purple and 13% of these in mol 5829. because of this incomplete polysomy, multiple-dose markers could not be mapped for lack of a genetic model for their segregation. due to inclusion of rflp anchor probes, conserved in related species, the resulting maps will serve as useful tools for breeding, ecology, evolution, and molecular biology studies within the andropogoneae.
Genetic maps of Saccharum officinarum L. and Saccharum robustum Brandes & Jew. ex grassl  [cached]
Guimar?es Claudia T.,Honeycutt Rhonda J.,Sills Gavin R.,Sobral Bruno W.S.
Genetics and Molecular Biology , 1999,
Abstract: Genetic analysis was performed in a population composed of 100 F1 individuals derived from a cross between a cultivated sugarcane (S. officinarum `LA Purple') and its proposed progenitor species (S. robustum `Mol 5829'). Various types (arbitrarily primed-PCR, RFLPs, and AFLPs) of single-dose DNA markers (SDMs) were used to construct genetic linkage maps for both species. The LA Purple map was composed of 341 SDMs, spanning 74 linkage groups and 1,881 cM, while the Mol 5829 map contained 301 SDMs, spanning 65 linkage groups and 1,189 cM. Transmission genetics in these two species showed incomplete polysomy based on the detection of 15% of SDMs linked in repulsion in LA Purple and 13% of these in Mol 5829. Because of this incomplete polysomy, multiple-dose markers could not be mapped for lack of a genetic model for their segregation. Due to inclusion of RFLP anchor probes, conserved in related species, the resulting maps will serve as useful tools for breeding, ecology, evolution, and molecular biology studies within the Andropogoneae.
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