Yield and Quality of Sorghum Genotypes as Affected by Nitrogen and Water PDF Download
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Author: Larry Gene Balko
Publisher:
ISBN:
Category : Nitrogen fertilizers
Languages : en
Pages : 198
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Book Description
Author: Larry Gene Balko
Publisher:
ISBN:
Category : Nitrogen fertilizers
Languages : en
Pages : 198
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Book Description
Author: Jeongmin Lee
Publisher:
ISBN:
Category : Crops and nitrogen
Languages : en
Pages : 242
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Book Description
Author: Madhulika
Publisher:
ISBN:
Category : Crops and nitrogen
Languages : en
Pages : 376
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Book Description
Author: Cleto Namoobe
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659592485
Category :
Languages : en
Pages : 120
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Book Description
Sorghum is one of the cereal crops grown in most parts of the world for animal feed and human consumption. Its wide range of adaptations makes it to be called a "Camel Crop" and may be a crop for the future especially in drought prone areas as it tends to tolerate water shortage and stress. This booklet highlights some of the effects of nitrogen on sorghum growth, quality and yield. The subject matter covered in this book will help students, farmers and those involved in research to learn more about the influence of various levels of nitrogen on sorghum growth. Dr Cleto Namoobe
Author: Joseph K. Kemei
Publisher:
ISBN:
Category : Crops and nitrogen
Languages : en
Pages : 214
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Author: Goncalo Evangelista de Franca
Publisher:
ISBN:
Category :
Languages : en
Pages : 190
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Book Description
Fifty-four sorghum (Sorghum bicolor (L.) Moench) genotypes were screened for differential response to N by growing plants with 10 mg N/ plant in nutrient solution. The genotypes TX 3934 X GH-8-17, and SC 423 X SC 239 produced the highest amount of dry matter per unit N (H), and SC 110 X SC 120, and SC 150-6 X SC 150-9 (L) produced the low-est amount of dry matter per unit N. Because of this, these genotypes were selected for further study to identify physiological properties that may be associated with differential N nutrition. The physiological properties evaluated in these genotypes were: (1) NO3 uptake rates as affected by time (hours after being put in a new N03 solution), N03 concentration, and plant age; (2) dry matter and N accumulation with plant age;(3) N distribution among plant parts at various plant ages; (4) dry matter produced per unit N; (5) genotype responses to different N levels and N compounds. Differential responses to N were moted among the genotypes screened with low N. The ranges were 131% for dry matter yields, 75% for N contents, 59% for top N/root N ratios, and 34% for dry matter produced per unit N. After an initial slow rate of N03 uptake, N03 absorption was relatively rapid during the next four hours before leveling off or decreasing after six hours in plants 34 days of age or younger; plants older than this showed no differences in N03 uptake. Patterns of N03 uptake with time suggested that uptake was induced by N03 at low concentrations. Differences in N03 uptake rates among (...).
Author: Sory Diallo
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Sorghum (Sorghum bicolor L. Moench) is cultivated as an important food grain in the semi-arid regions of Africa. Processed grain sorghum is traditionally consumed as porridge, couscous, traditional tô or beer. The quality of such foods is highly dependent upon grain characteristics. Sorghum grain quality traits mainly include kernel hardness, kernel weight, kernel size, protein content and kernel color. Grain quality traits are often influenced by environment, genotypes, fertilizer management and their interaction. The objective of this study was to determine the impact of different levels of nitrogen application (0, 45, and 90 kg ha−1) on grain quality of selected sorghum genotypes. The field experiment was conducted at three locations in 2010 (Manhattan, Ottawa, and Hays) and at two locations in 2011 (Manhattan and Ottawa). The experiment was laid in split plot randomized complete bloc design and replicated four times. The main plots were assigned to three N regimes: control (0 kg N ha−1), half recommended rate (45 kg N ha−1) and recommended rate (90 kg N ha−1). The subplots were assigned to twelve genotypes (six hybrids and six inbred lines). Plot size was 6.1 m x 3.0 m with a row spacing of 0.75 m. After harvest, grain quality traits (hardness, weight, diameter and protein content) were evaluated using standard procedures and the data subjected to statistical design using SAS. There were significant effects of genotype for most grain quality traits across both locations in Manhattan. Inbred lines SC35 and SC599 had maximum hardness at all locations while hybrid 95207, had the lowest hardness for all locations. Also, Inbred lines SC35 and Tx340 had maximum protein content at all the locations. While hybrids 95207, 26056, 23012 had the lowest protein content. Genotypes Tx430, SC35, had higher hardness and with higher protein content were classified as high quality. We conclude that application of N (45 or 90 kg ha−1) significantly improved grain protein, but not other quality traits. There are opportunities to improve grain protein through fertilizer management and plant breeding.
Author: Chalachew Endalamaw
Publisher:
ISBN: 9783330058408
Category :
Languages : en
Pages : 160
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Book Description
Author: Frankie Jih-Mjn Sung
Publisher:
ISBN:
Category : Nitrogen fertilizers
Languages : en
Pages : 102
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Book Description
Author: Kyle M. Linders
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Nitrogen is an essential nutrient required for growth and development in plants. Insufficient nitrogen availability can reduce vegetative growth and grain yield. However, nitrogen is a costly input for farmers, is energy intensive to manufacture, and runoff of excess nitrogen fertilizer impacts water quality. Compared to its close relative, maize, sorghum has much greater resilience to nitrogen and water deficit, and heat stress, allowing sorghum to be grown with fewer inputs and on marginal land. Variation in total biomass accumulation and grain yield between sorghum accessions, as well as between nitrogen conditions, can be largely explained by differences in vegetative growth and inflorescence architecture traits. Previous genome-wide association studies (GWAS) in sorghum have identified genetic markers associated with genes known to play roles in controlling growth and development. However, these studies have typically been conducted using field trials with “optimal” nitrogen application conditions. A set of 345 diverse inbred lines from the Sorghum Association Panel (SAP) were grown under both standard nitrogen application (N+) and no nitrogen application (N-) treatments, and a range of biomass and inflorescence-related traits were phenotyped, including plant height, lower and upper stem diameter, rachis length, lower and upper rachis diameter, and primary branch number. Stem volume, an approximation of biomass, was calculated from the directly measured traits. Stem volume was, on average, 10.48% higher for genotypes in nitrogen fertilized blocks, than for genetically identical plants in no nitrogen application blocks. Within individual treatment conditions, between 58.1% and 90.7% of the total variation for the measured and calculated traits could be explained by genetic factors. Genome-wide association studies were conducted to identify genetic markers associated with these traits in order to better understand the genetic factors involved in nitrogen stress response for potential use in breeding improved sorghum varieties.
