Search

Copyright of Nova Scientia is the property of Nova Scientia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Mexicana de Ciencias Agrícolas is the property of Instituto Nacional de Investigaciones Forestales, Agricolas y Pecuarias and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Mexicana de Ciencias Agrícolas is the property of Instituto Nacional de Investigaciones Forestales, Agricolas y Pecuarias and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Energy production from sorghum bioethanol is a way to help decrease climate change and environmental degradation. The objective of this work was to evaluate the agronomic characteristics associated to bioethanol production in experimental genotypes of sweet sorghum. During 2013 and 2014, seventeen sweet genotypes were evaluated in two locations, this locations are situated in northeastern Mexico, under a complete block randomly design with three replications. The three experiments were executed in Estacion Cuauhtemoc, Tamaulipas, in dryland; and two in Marin, Nuevo León, under irrigation. Experimental hybrid Potranca x Keller (p=0.05) presented the highest values (kg/ha) in: biomass weight (52 125), stem (39 650), panicle (4550), leaf (7700), juice (14 125), and bioethanol (2157 l/ha); it surpassed to the most productive control (Keller) in: 35,7, 32,5, 63,2, 41,6, 32,5, and 36,8%, respectively. It bloomed 6.8 days earlier than variety control. Experimental variety 17-1-1-1 had a minor foliar incidence of diseases in comparison to Keller. In addition, it presented agronomic characteristics similar to control in: biomass weight (44 375 kg/ha), stem (35 438 kg/ha), panicle (2488 kg/ha), leaf (6400 kg/ha), juice (11 750 kg/ha), plant dry weight (19 113 kg/ha), stem dry weight (14 888 kg/ha), bioethanol production (1929 l/ha), °Brix (15,2), days to flowering (80,8) and plant height (224 cm). [ABSTRACT FROM AUTHOR]

Copyright of Agrociencia is the property of Colegio de Postgraduados and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The objective of this work was to identify the molecular and phenotypic variability among maize populations Pinto Amarillo and Liebre in Nuevo Leon, Mexico. The phenotypic characterization experiment was established in spring 2009. The variables registered were plant height, days to male and female flowering, number of rows per ear, kernels per row of ears, length and diameter of the corn ear. For the molecular characterization of the 30 populations, the seeds were planted in February 2010 in pots with peat-moss. At 30 days after planting all the leaves were collected and used in AFLP. A cluster analysis was conducted using UPGMA method. Three groups were identified; twelve populations of Pinto Amarillo and three of Liebre. The landraces within each group were associated more to races of maize more than to location. [ABSTRACT FROM AUTHOR]

The objective of the study was to determine if the introgression of exotic sorghum lines increases the variability in the size of the glume and in the percent of uncovered grains. The sorghum population NESC7 (P1) was formed during four agricultural cycles (2005-2007) with an introgression cycle, and beginning on the fifth agricultural cycle (2008), the genetic variability for these traits was estimated in the 120 half-silb and 110 self-sib families. The methodology of incomplete block design was used at two locations, the Faculty of Agronomy at the University of Nuevo Leon (FAUANL) in Marín Nuevo Leon and INIFAP in Río Bravo, Tamaulipas. The introgression of exotic lines with smaller glume size and reduced grain cover into the population NESC7 (P1) reduced the size of the (13%), increased the percentage of uncovered grain (28%), and increased the proportion of both characteristics in the additive variance (5% and 1%), the heritability in a narrow sense of 22 % and 1% and higher response to selection (4% y 0.3%). [ABSTRACT FROM AUTHOR]

The objective of the study was to evaluate the agronomic performance of A, B isogenic lines and R grain sorghum lines which restore androfertility of sorghum for grain production. This work was performed during the spring-summer 2010 in Marin Nuevo Leon under drip irrigation. Days to flowering, seed yield per plant, brix degrees and weight of 1000 seeds were measured. The statistical analysis with the benchmark test of averages with independent samples was realized in A, B sorghum lines to days to flowering, seed yield per plant, brix degrees and weight of 1000 seeds. In R lines the analysis of variance and DMS (P<0.05%) test was performed. A an B lines were not completely isogenic; there are A and R lines that may be crossed to produce commercial sorghum grain seed. B and R lines might be used as varieties and A, R parental lines planting splits were defined to produce hybrid sorghum seed. [ABSTRACT FROM AUTHOR]

Charcoal rot caused by Macrophomina phaseolina (MP) is the most important disease that limits sorghum dryland production in northern Tamaulipas, Mexico. Grain yield losses caused by MP are approximately 30%. The objective of this study was to evaluate the response of experimental and commercial hybrids to MP and identify MP tolerant progenitors. Experimental hybrids RB-118 x 435 and RB-27 x 437 showed MP tolerance and grain field similar to commercial checks Pioneer 82G63, Pioneer 84G62, RB-Patrón, Asgrow Z- 400, RB-3030, and DK-47, and greater than Asgrow-Ámbar. Progenitor females that produced tolerant MP hybrids were LRB-118 and R-27, and males Tx-435 and Tx-437. [ABSTRACT FROM AUTHOR]