scholarly journals Breeding Potential of Maize Germplasm Line GEMS-0067 for High Amylose Proportion

2021 ◽  
Author(s):  
Nan Han ◽  
Wanchen Li ◽  
Chuanxiao Xie ◽  
Fengling Fu
Keyword(s):  
Starch Content ◽  
Degree Of Polymerization ◽  
Breeding Potential ◽  
Maize Germplasm ◽  
Maize Varieties ◽  
Germplasm Line ◽  
Recessive Mutant ◽  
High Amylose ◽  
Filling Characteristics ◽  
Starch Industry

Maize varieties with high amylose proportion are more valuable for starch industry. The SBEⅡb gene encodes one of the starch branching isozymes (SBEⅠ, SBEⅡa, and SBEⅡb). Its recessive mutant amylose-extender (ae/sbe2b) decreases the total activities of SBEs and increases amylose proportion up to 60%. Here, the breeding potential of introduced germplasm line GEMS-0067 was evaluated by genotyping and phenotyping. The deletion of the ninth exon of the SBEⅡb gene, high amylose proportion, and the typical irregular granules suggested that this germplasm line was derived from the same resource of high amylose line AE11. The gelatinization and thermal properties, and degree of polymerization of starch chain showed its advantages used for high amylose breeding. However, the negative correlation between amylose proportion and starch content, as well as ker-nel filling characteristics should be overcome during breeding process.

Development of Functional Molecular Markers of Sbe I and Sbe IIb for the High Amylose Maize Germplasm Line GEMS-0067

Crop Science ◽  
2013 ◽  
Vol 53 (2) ◽  
pp. 482-490 ◽  
Author(s):  
Tingting Chen ◽  
Lihua Ning ◽  
Xu Liu ◽  
Dezhou Cui ◽  
Hua Zhang ◽  
...  
Keyword(s):  
Molecular Markers ◽  
Maize Germplasm ◽  
Germplasm Line ◽  
High Amylose ◽  
Functional Molecular Markers

Breeding potential of maize germplasm populations to improve yield and predominant heterotic pattern in Northeast China

Euphytica ◽  
2017 ◽  
Vol 213 (9) ◽  
Author(s):  
Hongjun Yong ◽  
Zhenguo Jin ◽  
Li Gao ◽  
Lin Zhang ◽  
Xianjun Liu ◽  
...  
Keyword(s):  
Northeast China ◽  
Breeding Potential ◽  
Maize Germplasm ◽  
Heterotic Pattern

scholarly journals Registration of N547 Maize Germplasm Line

Crop Science ◽  
2002 ◽  
Vol 42 (1) ◽  
pp. 312-312 ◽  
Author(s):  
N.E. D'Croz‐Mason ◽  
J.E. Foster ◽  
S.C. Mason
Keyword(s):  
Maize Germplasm ◽  
Germplasm Line

Registration of Tx770 Maize Germplasm Line

Crop Science ◽  
2004 ◽  
Vol 44 (3) ◽  
pp. 1029-1030
Author(s):  
F.J. Betrán ◽  
A. Bockholt ◽  
F. Fojt ◽  
K. Mayfield
Keyword(s):  
Maize Germplasm ◽  
Germplasm Line

Registration of Maize Germplasm Line Mp716

Crop Science ◽  
2002 ◽  
Vol 42 (2) ◽  
pp. 671-672 ◽  
Author(s):  
W.P. Williams ◽  
F.M. Davis
Keyword(s):  
Maize Germplasm ◽  
Germplasm Line

scholarly journals Physicochemical and Organoleptic Characterization of Flours and Some Food Products Processed from Ten Maize Varieties (Zea mays) Cultivated in Côte d’Ivoire

2020 ◽  
pp. 39-49
Author(s):  
L. A. Akpro ◽  
Deffan K. Prudence ◽  
G. A. Gbogouri ◽  
Louis Ban-Koffi ◽  
K. E. Assemand ◽  
...  
Keyword(s):  
Protein Content ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Starch Content ◽  
Food Products ◽  
Physicochemical Characteristics ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
Organoleptic Characteristics ◽  
Maize Varieties

Objective: The aim of this work was to determine the processing aptitude of maize varieties into food products to be promoted in Côte d’Ivoire. Methodology: Three dishes have been developed from ten maize varieties (MAAN16, PGBR, PGB18, AAA3, KF18, CJB, KO/Na4, KO/Na3, KO/Wa6, and EV99MRP). The sensory criteria used for the acceptability of the food products were the taste, the flavor and the color. Prior to the preparation of maize flour based food, like cakes, cooked flour paste (tôh) and semolina porridge,  the biochemical and physicochemical characteristics (moisture content, fat, protein content, ash content, carbohydrate, total sugar and reducers and pH) and functional characteristics of maize were determined. Hedonic   and descriptive tests were performed   with 30 and 15 panelists respectively. Results: The maize varieties presented good nutritional and technological potentialities because of their high content in essential compounds likely to influence the organoleptic characteristics of the processed food.  The lowest starch content was MAAN16 with 38.58 ± 0.45% dw and the highest was CJB with 71.85 ± 0.56% dw. The lowest protein content is 5.56 ± 0.17% dw at CJB and the highest protein content is 13.66 ± 0.33% dw in KO/Na3. The lowest fat content is 3.87 ± 0.12% dw (in KO/Na4) and the highest is 12.56 ± 0.50% dw (in MAAN16); the lowest carbohydrate level is 63.27 ± 0.01% dw (in MAAN16) and the highest is 74.92± 0.03% dw (in CJB). The acceptability of the cakes, the cooked flour paste and the semolina porridge depended on the maize variety. Foods prepared from maize varieties CJB, KO/Na3, KO/Wa6, MAAN16 and PGBR were the most appreciated by tasters.

scholarly journals Genetic Variation for Biofortifying The Maize Grain

2016 ◽  
Vol 4 (8) ◽  
pp. 684 ◽  
Author(s):  
Gönül Cömertpay ◽  
Faheem Shehzad Baloch ◽  
Halil Erdem
Keyword(s):  
Starch Content ◽  
Principal Component ◽  
Mineral Elements ◽  
Quality Traits ◽  
Maize Breeding ◽  
Mineral Contents ◽  
Maize Germplasm ◽  
Geographical Regions ◽  
Maize Landraces ◽  
Maize Grain

The maize germplasm variation is valuable for breeders to develop elite hybrids with increased mineral contents in the maize grain to eliminate mineral malnutrition, which is referred as HIDEN HUNGER. Therefore, we aimed to determine mineral element diversity of maize landraces collected from different geographical regions of Turkey. There was huge diversity for all mineral traits and other quality traits. Turkish maize landraces showed high variation for Zn (17-41.34 mg kg-1), Fe (13.52-29.63 mg kg-1), Cu (0.77-3.34 mg kg-1), Mn (5.68-14.78 mg kg-1), Protein (6.6-11.6%), starch content (73.3-80.0%), oil content (3.15-4.7%) and thousand grain weight (177.0-374.9g). There were significant positive and negative associations among mineral elements and quality traits. The principal component analysis differentiated some maize landraces from the rest, and these diverse landraces could be used in the maize breeding program with biofortification purpose.

EVALUATION OF EXPERIMENTAL VARIETIES FROM RECURRENT SELECTION FOR STRIGA RESISTANCE IN TWO EXTRA-EARLY MAIZE POPULATIONS IN THE SAVANNAS OF WEST AND CENTRAL AFRICA

2007 ◽  
Vol 43 (2) ◽  
pp. 183-200 ◽  
Author(s):  
B. BADU-APRAKU ◽  
M. A. B. FAKOREDE ◽  
A. FONTEM LUM
Keyword(s):  
Recurrent Selection ◽  
Random Mating ◽  
Central Africa ◽  
Primary Objective ◽  
Striga Hermonthica ◽  
Yield Potential ◽  
High Yield ◽  
Maize Germplasm ◽  
Resistant Varieties ◽  
Maize Varieties

A breeding programme for resistance to Striga hermonthica in maize (Zea mays) was initiated in Côte d'Ivoire in 1994. Two extra-early populations, white (TZEE-W Pop STR) and yellow (TZEE-Y Pop STR), were formed from diallel crosses of the best adapted extra-early maturing maize germplasm in the West and Central African subregion. In an effort to improve the populations for Striga resistance, TZEE-W Pop was crossed to inbred 1368 STR (Tzi 3 STR), and TZEE-Y Pop to 9450 STR (Tzi 25 STR). The resulting F1 populations were carried through two backcross (BC) generations. S1 lines were developed from the BC2 and subjected to two cycles of random mating to generate TZEE-W Pop STR C0 and TZEE-Y Pop STR C0. These two populations were subjected to three cycles of S1 recurrent selection under artificial Striga infestation and several experimental varieties were extracted from the different cycles of the selection programme. The original populations (C0), improved populations, and experimental varieties were evaluated in two experiments under Striga-infested and Striga-free conditions. The primary objective was to determine the effectiveness of S1 recurrent selection in developing Striga-resistant extra-early maize varieties. Results of the performance tests showed that the populations were good sources of Striga-resistant varieties with high-yield potential under both Striga-infested and Striga-free conditions. The results have also confirmed the effectiveness of inbreeding, selection and hybridization, as well as the backcross breeding methods, as tools for the development of extra-early populations, synthetic varieties and inbred lines.

The required characteristics of ensiled crops used as a feedstock for biogas production: a review

2011 ◽  
Vol 28 (2) ◽  
pp. 85-96 ◽  
Author(s):  
Pavel Kalač
Keyword(s):  
Anaerobic Digestion ◽  
Biogas Production ◽  
Starch Content ◽  
Maize Silage ◽  
High Quality ◽  
Cobalt Nickel ◽  
Maize Varieties ◽  
Biogas Plants ◽  
Low Nitrogen ◽  
Biological Nature

The required characteristics of ensiled crops used as a feedstock for biogas production: a reviewMaize and grass silages are the main feedstock for anaerobic digestion in agricultural biogas plants. High-quality silage is necessary for high methane yields. Grasses should be cut and ensiled at leafy stages, until full heading, prior to an extensive lignification. Late ripening maize varieties should be harvested towards full ripening due to the increasing starch content in grains, and early to medium ripening varieties at the end of waxy ripeness. The substrate availability for methanogens is improved by fine chopping. Pretreatment processes of a thermal, chemical or biological nature attempting to disrupt lignocellulosic matter are economically demanding, including the application of enzyme hydrolysing structural polysaccharides. Application of lactic acid bacteria inoculants at ensiling seems to have an insignificant effect on methane yields. Some micronutrients necessary for methanogens growth are often deficient in the silages and particularly cobalt, nickel and iron should be supplemented. Maize silage has too low nitrogen content for methanogens growth. The high acidity of silage needs to be partially neutralised prior to anaerobic digestion.

Registration of Maize Germplasm Line Mp715

Crop Science ◽  
2001 ◽  
Vol 41 (4) ◽  
pp. 1374-1375 ◽  
Author(s):  
W.P. Williams ◽  
G.L. Windham
Keyword(s):  
Maize Germplasm ◽  
Germplasm Line
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