Identifying Inbred Lines Capable of Improving Ear and Stover Yield and Quality of Superior Silage Maize Hybrids

The breeding programme on speciality maize with specific traits was established at the Maize Research Institute, Zemun Polje, several decades ago. The initial material was collected, new methods applying to breeding of speciality maize, i.e. popping maize, sweet maize and white-seeded maize, were introduced. The aim was to enhance and improve variability of the initial material for breeding these three types of maize. Then, inbred lines of good combining abilities were developed and used as components for deriving new superior popping maize hybrids, sweet maize hybrids and white-seeded maize hybrids. Breeding was aimed at the increase of the popping volume of new inbred lines and hybrids of popping maize, then at the improvement of quality of popped kernels - flakes, and at yield increasing. Furthermore, the aim was to improve quality of sweet maize for different purposes, industrial processing and consumption as fresh food and also to improve yield and quality of white-seeded maize. As a result of such breeding, 28, 11 and 9 sweet maize, popping maize and white-seeded maize hybrids were released, respectively.

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Урожайність кукурудзи залежно від удобрення та гібриду на темно-сірих опідзолених ґрунтах

Вісник Полтавської державної аграрної академії ◽

10.31210/visnyk2016.04.12 ◽

2016 ◽

pp. 63-65

Author(s):

Л. М. Єрмакова ◽

Є. В. Крестьянінов

Keyword(s):

Mineral Fertilizer ◽

Water Soluble ◽

Resource Potential ◽

Maize Hybrids ◽

Research Results ◽

Yield And Quality ◽

Soluble Fertilizer ◽

Positive Effect ◽

Corn Grain

У статті наведено результати досліджень щодо впливу позакореневого підживлення посівів кукурудзи водорозчинним добривом «Нутрімікс», «Нутрібор» і «Мікро-Мінераліс» на фоні розрахункової норми повного мінерального добрива N158P52K52 (фон) на урожайність та якість зерна кукурудзи. Встановлено, що застосування позакореневого підживлення на фоні основного удобрення має позитивний вплив на продуктивність досліджуваних гібридів кукурудзи. На основі аналізу результатів досліджень виявлено, що оптимізація живлення сприяє більш повному розкриттю ресурсного потенціалу рослин та підвищенню врожайності. The results of studies of the influence of foliar feeding crops of corn water-soluble fertilizer «Nutrimiks», «Nutribor» and «Micro-Mineralis» on background calculation rules N158P52K52 complete mineral fertilizer (background) on the yield and quality of corn grain are presented. It was found that the use of foliar feeding on the background of the main fertilizer has a positive effect on the performance of the studied maize hybrids. Based on the analysis of the research results revealed that optimizing nutrition contributes to more complete disclosure of the resource potential of plants and higher yields.

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Molybdenum fertilization effect on nodulation, yield and quality of green gram grown in the soils of southern agro-climatic zone of Tamil Nadu, India

Legume Research - An International Journal ◽

10.18805/lr.v38i6.6726 ◽

2015 ◽

Vol 38 (6) ◽

Author(s):

R. Velmurugan ◽

P. P. Mahendran

Keyword(s):

Nutritional Quality ◽

Tamil Nadu ◽

Dry Weight ◽

Green Gram ◽

Climatic Zone ◽

Yield And Quality ◽

Stover Yield ◽

Fertilization Effect ◽

Different Soils

A pot experiment was conducted under natural condition with green gram (cultivar CO 6) using twenty bulk soil samples collected from major soil series of Southern agro–climatic zone of Tamil Nadu. Application of graded levels of molybdenum (Mo) at 0, 0.025, 0.050, 0.075 and 0.1 mg kg−1 positively influenced the yield, nodulation characteristics and nutritional quality of green gram crop. The highest number of nodules, dry weight nodules per plant, nodule N concentration and chlorophyll content of leaves were registered at 0.075 mg kg−1 level. Similarly, the seed and stover yield, uptake of N, P, K and Mo by green gram were also increased with molybdenum application up to 0.075 mg kg−1 level beyond which they declined. However, the amount of protein in seed significantly increased with increasing levels of Mo up to 0.1 mg kg−1 level in different soils. Hence, Mo application not only increased the yield but also enhanced the nutritional quality of green gram through effective nodulation.

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Hybrid and population density affect yield and quality of silage maize in central Alberta

Canadian Journal of Plant Science ◽

10.4141/cjps06024 ◽

2007 ◽

Vol 87 (4) ◽

pp. 867-871 ◽

Cited By ~ 8

Author(s):

D. Stanton ◽

A. W. Grombacher ◽

R. Pinnisch ◽

H. Mason ◽

D. Spaner

Keyword(s):

Zea Mays ◽

Zea Mays L ◽

North Central ◽

Heat Units ◽

Silage Maize ◽

Yield And Quality ◽

Northern Latitudes ◽

Early Maturing ◽

Plant Densities

Four maize (Zea mays L.) hybrids planted at varying plant densities were evaluated for their yield, maturity, and quality across environments in north central Alberta. Given the balance of yield and quality, very early maturing hybrids [2000 corn heat units (CHU)] planted at ~100 000 plants ha-1 are recommended for north central Alberta. Key words: Corn; Zea mays L.; northern latitudes; corn heat units

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Biochemical profiling and its role in physiological quality of maize seeds

Journal of Seed Science ◽

10.1590/2317-1545v40n1172734 ◽

2018 ◽

Vol 40 (1) ◽

pp. 7-15 ◽

Cited By ~ 3

Author(s):

Daniele Nerling ◽

Cileide Maria Medeiros Coelho ◽

Adriele Brümmer

Keyword(s):

Soluble Sugars ◽

Accelerated Aging ◽

Inorganic Phosphorus ◽

Inbred Lines ◽

Total Protein Content ◽

Breeding Programs ◽

Maize Hybrids ◽

Maize Seeds ◽

Physiological Quality

Abstract: Viability and vigor of seeds are physiological attributes influenced by a myriad of factors including the genotype. Biochemical profiling of maize seeds and its correlation with their physiological quality is of crucial importance in breeding programs that the aim is seeds of better quality. The main goal of this study was to analyze the genetic diversity among maize inbred lines and evaluate the biochemical components that have an important role in physiological quality of seeds. The seeds of the inbred lines and hybrids were submitted to viability test, vigor by the accelerated aging and cold tolerance, and biochemical profiling (total protein content, soluble proteins, total phosphorus, phytate, inorganic phosphorus, starch and soluble sugars). The genetic divergence between the inbred lines found, prompt us to conclude that genetic gains may exist in association with physiological quality of maize hybrids. Seeds with higher inorganic phosphorus and soluble sugars presented superior physiological quality than seeds with lower levels of those compounds.

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Yield and Quality of Two Maize Hybrids as Affected by Different Planting Patterns

Journal of Biological Sciences ◽

10.3923/jbs.2001.249.250 ◽

2001 ◽

Vol 1 (4) ◽

pp. 249-250 ◽

Cited By ~ 1

Author(s):

Khalid Iqbal . ◽

Tariq Mahmood . ◽

Muhammad Usman .

Keyword(s):

Maize Hybrids ◽

Yield And Quality

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Yield and quality of silage of maize hybrids

Revista Brasileira de Zootecnia ◽

10.1590/s1516-35982012000600031 ◽

2012 ◽

Vol 41 (6) ◽

pp. 1539-1544 ◽

Cited By ~ 2

Author(s):

Karoline Guedes Araújo ◽

Severino Delmar Junqueira Villela ◽

Fernando de Paula Leonel ◽

Patrícia Monteiro Costa ◽

Leonardo de Oliveira Fernandes ◽

...

Keyword(s):

Maize Hybrids ◽

Yield And Quality

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Relationship between Delayed Leaf Senescence (Stay-Green) and Agronomic and Physiological Characters in Maize (Zea mays L.)

Agronomy ◽

10.3390/agronomy11020276 ◽

2021 ◽

Vol 11 (2) ◽

pp. 276

Author(s):

Nadia Chibane ◽

Marlon Caicedo ◽

Susana Martinez ◽

Purificación Marcet ◽

Pedro Revilla ◽

...

Keyword(s):

Leaf Senescence ◽

Dry Matter ◽

Grain Filling ◽

Inbred Lines ◽

Kernel Weight ◽

Stay Green ◽

Delayed Senescence ◽

Yield And Quality ◽

Stover Yield ◽

The Impact

Stay-green (SG) is a term used to describe genotypes that have delayed leaf senescence as compared to reference genotypes. SG could be favorable for grain yield, silage yield and quality, double exploitation (grain for feed and stover for bioenergy), stress resistance, etc. However, some studies show contradictory results regarding the influence of senescence or SG in the uptake and remobilization of nutrients and the yield and moisture of stover and grain. This experiment is aimed to study the impact of senescence in grain and stover yield and moisture in inbred lines of maize and assess the potential of SG genotypes for double exploitation. We also study the influence of senescence in the uptake of N and remobilization of dry matter and N from stover to grain. We evaluated 16 maize inbred lines with contrasting expression of senescence in the field at two locations in Galicia in 2017. We confirmed that SG is functional, meaning that the SG genotypes maintained photosynthesis activity for a lengthy period. Coordinated with a delayed senescence, the grain filling of the SG genotypes was 9 days longer than NSG genotypes. SG genotypes took up more N after flowering, although the remobilization of N and, in general, of dry matter from stover to kernels was less efficient. However, the higher uptake compensated the poor remobilization, and the final effect of SG on the N content of the kernels was favorable. SG was also favorable for kernel weight and the kernels of SG genotypes were 20% heavier than for NSG. The stover yield was also higher in the SG genotypes, indicating a potential of SG for breeding for double purpose (grain for feed and stover for bioenergy).

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The effects of short and long shading, applied during different stages of growth, on the development, productivity and quality of forage maize (Zea mays L.).

Netherlands Journal of Agricultural Science ◽

10.18174/njas.v31i2.16951 ◽

1983 ◽

Vol 31 (2) ◽

pp. 101-124

Author(s):

P.C. Struik

Keyword(s):

Cell Wall ◽

Cell Walls ◽

Field Experiments ◽

Zea Mays L ◽

Vegetative Development ◽

Forage Maize ◽

Stages Of Growth ◽

Yield And Quality ◽

Stover Yield

In 2 field experiments, shading which differed in duration and date of initiation was applied to normal stands of forage maize cv. LG11. Short shading during vegetative development affected leaf area, plant ht., stem thickness and reproductive development but final effects on DM yield and quality were small. Short shading during silking drastically reduced ear size and final ear yield. Although the deleterious effect on ear yield was partly compensated for by higher stover yield, productivity was low after the shading tents were removed. Digestibility was also greatly reduced because production of total DM was affected more than production of partly indigestible cell walls. Short shading soon after silking curtailed cell-wall formation more than DM production and crop digestibility was not adversely affected. Reduction in DM production remained large especially in the ear because of grain abortion. Shading after grain set stimulated the depletion of short carbohydrates in the stover and slowed down the decrease in the cell wall content of the whole crop. Crops shaded for long periods yielded more than expected on the basis of the short treatments. Long shading treatments lasted until final sampling and the earlier a long treatment was initiated, the greater the reduction in yield. The same was true for whole-crop digestibility, except in the earliest shading treatment in which poor vegetative development accompanied poor ear development. (Abstract retrieved from CAB Abstracts by CABI’s permission)

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