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Responses Of Grain Sorghum To Profile And Temporal Dynamics Of Soil Water In A Semi Arid Environment
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Book Synopsis Responses of Grain Sorghum to Profile and Temporal Dynamics of Soil Water in a Semi-arid Environment by : Jourdan Margaret Bell
Download or read book Responses of Grain Sorghum to Profile and Temporal Dynamics of Soil Water in a Semi-arid Environment written by Jourdan Margaret Bell and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Development of efficient irrigation strategies is a priority for producers faced with water shortages. Managed deficit irrigation attempts to optimize water use efficiency (WUE) by synchronizing crop water use with reproductive stages. Soil water use and yield of grain sorghum [Sorghum bicolor (L.) Moench], on a Torrertic Paleustoll in the Texas High Plains, USA, were evaluated during the 2010 to 2012 growing seasons under three sprinkler irrigation strategies: full (FI), deficit (DI), and managed deficit irrigation (MDI). Soil water contents were measured weekly at 0.20-m intervals from 0.10 to 2.30 m depth using a neutron moisture gage. Irrigation for the FI treatment was scheduled when root zone water (0 to 1.6 m) was depleted to 50% of the potential plant available water (PPAW). The DI treatment was irrigated at 50% of FI. The MDI treatment was irrigated at 75% of FI between growing point differentiation and half-bloom, 50% of FI after half-bloom, and less than DI prior to growing point differentiation. Fully irrigated sorghum grain yields averaged 3.7 Mg ha−1 greater (p
Book Synopsis Response of Grain Sorghum to Variable Water Supply Under High and Normal Irrigation Frequencies by : Jose Maria Faci
Download or read book Response of Grain Sorghum to Variable Water Supply Under High and Normal Irrigation Frequencies written by Jose Maria Faci and published by . This book was released on 1978 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Responses of Grain Sorghum to Varying Irrigation Area Freqency by : R. J. K. Myers
Download or read book Responses of Grain Sorghum to Varying Irrigation Area Freqency written by R. J. K. Myers and published by . This book was released on 1984 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sorghum Science written by R. K. Maiti and published by . This book was released on 1996 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sorghum is one of the five important cereal crops of the world and is used by millions in the semi-arid tropics and also as animal feed in many developed countries. The sorghum grain has excellent yields in the semi-arid tropics under several biotic and abiotic constraints. A good knowledge of sorghum plants and their mechanisms of adaptation in harsh environments will help in the formulation of efficient breeding programmes.
Book Synopsis Response of Cotton, Grain Sorghum and Potatoes to Irrigation at Variable Soil Water Potentials by : Travis Dale Miller
Download or read book Response of Cotton, Grain Sorghum and Potatoes to Irrigation at Variable Soil Water Potentials written by Travis Dale Miller and published by . This book was released on 1978 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Grain Sorghum Production with Different Nutrients, Populations and Irrigation Frequencies by : H. D. Fuehring
Download or read book Grain Sorghum Production with Different Nutrients, Populations and Irrigation Frequencies written by H. D. Fuehring and published by . This book was released on 1974 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Grain Sorghum Response to Water Supply and Environment by : Jonathan Broeckelman
Download or read book Grain Sorghum Response to Water Supply and Environment written by Jonathan Broeckelman and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Sorghum [Sorghum bicolor (L.) Moench] has greater drought resilience than many other crops, producing food in the most stressful environments. Sorghum is a reasonable crop choice for farmers working with limited-water supply. The objective of this study was to compare sorghum hybrids differing in yield strategies under varying water supply environments. Yield, biomass, grain harvest index (HI), and yield components (seed number and seed weight) were compared in both rainfed and irrigated situations. Field experiments were established in 2014 and 2015 at Topeka, Scandia, Hutchinson, Garden City, and Tribune, KS. Three sorghum hybrids (Pioneer 85Y40, Pioneer 84G62, and Dekalb 53-67) with different yield potentials at varying water supply were studied. Hybrids 85Y40 and 84G62 tended to have greater yields than hybrid 53-67 when the environment's average yield level was greater than 8.5 Mg haˉ1. The opposite scenario where hybrid 53-67 had greater yields than the other two hybrids tended to occur for environments yielding less than 8.5 Mg haˉ1. Both biomass and HI were significantly correlated with grain yield (r values of 0.62 and 0.32 respectively), with biomass having an overall stronger correlation than HI in all environments. In yield group 3 (8.5 Mg haˉ1), biomass was much more strongly correlated (r=0.85) to yield than in the yield groups 1 and 2 (9.5 Mg haˉ1 and 8.5-9.5 Mg haˉ1 with r values of 0.35 and 0.52 respectively) suggesting that biomass production is of utmost importance for yield production in drought prone environments. Harvest index on the other hand had a much stronger correlation with yield in group 1 (r=0.62) when compared to group 2 and 3 (r 0.13 and 0.36 respectively) showing the importance of not only biomass, but also of HI to maximize yield in high yielding environments. Hybrids 85Y40 and 84G62 had larger HI values relating to the yield trends in the highest yielding environments. Seed number had a stronger correlation with yield (r=0.77) than seed weight (r=0.37) supporting the importance of increasing seed number to improve yield in sorghum.
Book Synopsis Evapotranspiration and Soil Moisture-fertilizer Interrelations with Irrigated Grain Sorghum in the Southern High Plains by : Marvin Eli Jensen
Download or read book Evapotranspiration and Soil Moisture-fertilizer Interrelations with Irrigated Grain Sorghum in the Southern High Plains written by Marvin Eli Jensen and published by . This book was released on 1965 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Optimal Grain Sorghum Irrigation Strategies in a Dynamic, Stochastic Environment by : Luis R. Zavaleta
Download or read book Optimal Grain Sorghum Irrigation Strategies in a Dynamic, Stochastic Environment written by Luis R. Zavaleta and published by . This book was released on 1978 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Soil Water Dynamics Under Different Planting Geometries in Corn and Sorghum Under Dryland Conditions by : Partson Mubvumba
Download or read book Soil Water Dynamics Under Different Planting Geometries in Corn and Sorghum Under Dryland Conditions written by Partson Mubvumba and published by . This book was released on 2010 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Grain Sorghum Research written by and published by . This book was released on 1971 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Root Development and Water Relations of Grain Sorghum in the Early Growth Stages by : Jose Romero Corcetti Purcino
Download or read book Root Development and Water Relations of Grain Sorghum in the Early Growth Stages written by Jose Romero Corcetti Purcino and published by . This book was released on 1980 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Relacao da agua com o desenvolvimento da raiz do sorgo granifero nos primeiros estagios de crescimento. O trabalho procurou determinar a resposta das plantas jovens a mudanca de conteudo de umidade do solo e reducao da densidade de crescimento da raiz. Sob estas condicoes o desenvolvimento do sistema da raiz, crescimento da folha, area da folha e potencial de agua na folha foram estudados. A possibilidade do estagio sensitivo, no qual o desenvolvimento da raiz da planta pode causar stresse hidrico sem levar em conta o conteudo de agua no solo causando um minimo de potencial de agua na folha seguido por uma recuperacao gradual foi explorado.
Book Synopsis Selected Water Resources Abstracts by :
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1989 with total page 878 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Response of Cotton, Grain Sorghum and Wheat to Environmental Temperature, Available Water and Experimental Farming Systems, Texas A & M University Research and Extension Center at Dallas by : Hans Brawand
Download or read book Response of Cotton, Grain Sorghum and Wheat to Environmental Temperature, Available Water and Experimental Farming Systems, Texas A & M University Research and Extension Center at Dallas written by Hans Brawand and published by . This book was released on 1978 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Adaptation of Grain Sorghum in the Semi-arid Tropics by : L. J. Wade
Download or read book Adaptation of Grain Sorghum in the Semi-arid Tropics written by L. J. Wade and published by . This book was released on 1993 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characterization of Grain Sorghum for Physiological and Yield Traits Associated with Drought Tolerance by :
Download or read book Characterization of Grain Sorghum for Physiological and Yield Traits Associated with Drought Tolerance written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Grain sorghum (Sorghum bicolor L. Moench) is the fourth most important cereal crop grown throughout the semi-arid regions of the world. It is a staple food crop in Africa and Asia, while it is an important feed crop in the United States (US). More recently it is increasingly becoming important as a potential bioenergy feedstock crop around the world. The state of Kansas is the largest producer of grain sorghum in the US and contributes 40% of the total production. Drought is one of the major environmental factors limiting sorghum production in the semi-arid regions of the US, Asia and Africa. It is estimated that global crop losses due to drought stress exceed $10 billion annually. In crop production, drought stress can be classified into pre- or post-flowering. Even though the world collections of sorghum contain over 35,000 accessions, the genetic base currently used in breeding programs is very small (about 3%). Thus, it is important to identify diverse breeding lines for crop improvement. The diversity (association) panel consisting of 300 sorghum lines from all over the world was assembled for trait evaluation and association mapping. In this research these lines were grouped into the five major races (Figure 1) and 10 intermediate races of sorghum. The objectives of the research are to: (i) quantify the performance of the diversity panel under field conditions in Kansas, (ii) identify critical physiological traits affected by drought at both pre- and post-flowering stages of sorghum development, (iii) identify the most sensitive stage to drought stress during the reproductive phase of sorghum development and, (iv) test the feasibility of using a chlorophyll fluorescence assay (CVA) as a tool for identifying stay-green lines in grain sorghum during early stages of crop development. Field experiments were conducted in 2006 and 2007 in two locations in Kansas (Manhattan and Hays) under rain fed and irrigated conditions for the association panel. Objectives (iii) and (iv) were achieved with controlled environment experiments conducted in the greenhouse at the agronomy department, Kansas State University in 2006 and 2007. Results showed that there was large genetic variability among and within different races in the diversity panel for growth, physiological traits and yield components. Some genotypes showed yield stability across the different environments that were investigated. Drought significantly decreased seed number and harvest index across genotypes and races. In grain sorghum the period prior to flowering (panicle initiation) was the most sensitive stage to drought stress, in terms of its effect on seed-set, during reproductive development. A cell viability assay showed that there were significant differences in the loss of cell viability between leaf sample of stay green and non-stay green genotypes when leaf samples are collected in the morning and subjected to high respiratory demand. Therefore the chlorophyll fluorescence assay has potential as a tool for stay green trait screening at early stages of growth in grain sorghum.
Author :Hyderabad) International Symposium on Agrometeorology of Sorghum and Millet in the Semi-Arid Tropics (1982 ; ICRISAT Publisher : ISBN 13 : Total Pages :322 pages Book Rating :4.:/5 (763 download)
Book Synopsis Agrometeorology of Sorghum and Millet in the Semi-arid Tropics by : Hyderabad) International Symposium on Agrometeorology of Sorghum and Millet in the Semi-Arid Tropics (1982 ; ICRISAT
Download or read book Agrometeorology of Sorghum and Millet in the Semi-arid Tropics written by Hyderabad) International Symposium on Agrometeorology of Sorghum and Millet in the Semi-Arid Tropics (1982 ; ICRISAT and published by . This book was released on 1984 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
