Influence of Different Vigour Levels on Seed Quality Crop Performance and Yield in Maize (Zea Mays L.) PDF Download
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Author: MANJUNATHA SWAMY K. K
Publisher:
ISBN:
Category :
Languages : en
Pages : 114
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Book Description
Author: MANJUNATHA SWAMY K. K
Publisher:
ISBN:
Category :
Languages : en
Pages : 114
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Book Description
Author: D. Dileep Kumar
Publisher:
ISBN:
Category :
Languages : en
Pages : 97
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Book Description
Author: S. Emmanuel
Publisher:
ISBN:
Category :
Languages : en
Pages : 64
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Book Description
Author: Muhammad Aslam
Publisher: Springer
ISBN: 3319254421
Category : Science
Languages : en
Pages : 79
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Book Description
This book focuses on early germination, one of maize germplasm most important strategies for adapting to drought-induced stress. Some genotypes have the ability to adapt by either reducing water losses or by increasing water uptake. Drought tolerance is also an adaptive strategy that enables crop plants to maintain their normal physiological processes and deliver higher economical yield despite drought stress. Several processes are involved in conferring drought tolerance in maize: the accumulation of osmolytes or antioxidants, plant growth regulators, stress proteins and water channel proteins, transcription factors and signal transduction pathways. Drought is one of the most detrimental forms of abiotic stress around the world and seriously limits the productivity of agricultural crops. Maize, one of the leading cereal crops in the world, is sensitive to drought stress. Maize harvests are affected by drought stress at different growth stages in different regions. Numerous events in the life of maize crops can be affected by drought stress: germination potential, seedling growth, seedling stand establishment, overall growth and development, pollen and silk development, anthesis silking interval, pollination, and embryo, endosperm and kernel development. Though every maize genotype has the ability to avoid or withstand drought stress, there is a concrete need to improve the level of adaptability to drought stress to address the global issue of food security. The most common biological strategies for improving drought stress resistance include screening available maize germplasm for drought tolerance, conventional breeding strategies, and marker-assisted and genomic-assisted breeding and development of transgenic maize. As a comprehensive understanding of the effects of drought stress, adaptive strategies and potential breeding tools is the prerequisite for any sound breeding plan, this brief addresses these aspects.
Author: Najeed Ahmed Khan Nangraj
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659427657
Category :
Languages : en
Pages : 72
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Book Description
This book contain about maize (Zea mays L.) cultivar yield influence by various plant population. Comparing varying levels of plant population density to growth and yield is one measure used to gauge the value of maize cultivars. High plant population always increases competition for growth resources viz. light, moisture and nutrients and thus low grain yield was observed. Each maize cultivar reached a point of maximum yield and harvest index at 70000 plants ha-1; further increase in plant population had non-significant increase in yield. Among the tested maize cultivars, Afgoy had better performance for growth and yield
Author: Amitava Rakshit
Publisher: Springer
ISBN: 9811300321
Category : Science
Languages : en
Pages : 312
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Book Description
Most crop plants grow in environments that are suboptimal, which prevents the plants from attaining their full genetic potential for growth and reproduction. Stress due to abiotic and biotic agents has a significant effect on world food production. Annually, an estimated 15% of global yields are lost, but this figure belies far greater losses for specific food systems and the people whose existence is dependent upon them, particularly in developing countries. Current efforts to mitigate these losses are worryingly over-reliant on the use of sophisticated and costly chemicals /measures with substantial economic and environmental costs, or on the development of efficient and smart crop varieties, which can take decades. What we need is a broad range of safe, robust and equitable solutions for food producers. One under-investigated approach is that of utilizing the crop plant’s innate immune system to resist stress. More specifically, the innate immune system can be sensitized or ‘primed’ to respond more quickly and strongly to protect the plant against stresses. However, a strategy of employing priming in combination with reduced pesticide use can enhance protection, and help to meet commitments to reducing chemical inputs in agriculture. This book discusses in detail different segments of priming in addressing stress factors and traits to increase competitiveness against all odds. Adopting a holistic and systematic approach, it addresses priming to counter climate-change related adverse effects coupled with pest and pathogen related stress on the productivity of crops utilizing natural resources to reap sustainable environmental, economic and social benefits for potential productivity of crops, maintaining synergy between soil, water and plants in ways that mimic nature.
Author: Tahira Begum
Publisher:
ISBN:
Category :
Languages : en
Pages : 79
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Book Description
Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 1052
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Book Description
Author: A. Solaimalai
Publisher: CRC Press
ISBN: 1000176959
Category : Technology & Engineering
Languages : en
Pages : 454
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Book Description
Maize is one of the versatile emerging crops with wider adaptability under varied agro-climatic conditions. Globally, maize is known as queen of cereals because it has the highest genetic yield potential among the cereals. It is cultivated on nearly 150 m/ha in about 160 countries having wider diversity of soil, climate, biodiversity and management practices that contributes 36 % (782 m/t) in the global grain production. The United States of America (USA) is the largest producer of maize contributes nearly 35 % of the total production in the world. It is the driver of the US economy. This book talks about the improvement, production, protection and post harvest technology of the maize crop. Note: T& F does not sell or distribute the Hardback in India, Pakistan, Nepal, Bhutan, Bangladesh and Sri Lanka.
Author: Shabir Hussain Wani
Publisher: Springer Nature
ISBN: 3031216407
Category : Technology & Engineering
Languages : en
Pages : 338
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Book Description
Maize is one of the most generally grown cereal crops at global level, followed by wheat and rice. Maize is the major crop in China both in terms of yield and acreage. In 2012, worldwide maize production was about 840 million tons. Maize has long been a staple food of most of the global population (particularly in South America and Africa) and a key nutrient resource for animal feed and for food industrial materials. Maize belts vary from the latitude 58° north to the latitude 40° south, and maize ripens every month of the year. Abiotic and biotic stresses are common in maize belts worldwide. Abiotic stresses (chiefly drought, salinity, and extreme temperatures), together with biotic stresses (primarily fungi, viruses, and pests), negatively affect maize growth, development, production and productivity. In the recent past, intense droughts, waterlogging, and extreme temperatures have relentlessly affected maize growth and yield. In China, 60% of the maize planting area is prone to drought, and the resultant yield loss is 20%–30% per year; in India, 25%–30% of the maize yield is lost as a result of waterlogging each year. The biotic stresses on maize are chiefly pathogens (fungal, bacterial, and viral), and the consequential syndromes, like ear/stalk rot, rough dwarf disease, and northern leaf blight, are widespread and result in grave damage. Roughly 10% of the global maize yield is lost each year as a result of biotic stresses. For example, the European corn borer [ECB, Ostrinianubilalis (Hübner)] causes yield losses of up to 2000 million dollars annually in the USA alone in the northern regions of China, the maize yield loss reaches 50% during years when maize badly affected by northern leaf blight. In addition, abiotic and biotic stresses time and again are present at the same time and rigorously influence maize production. To fulfill requirements of each maize-growing situation and to tackle the above mentions stresses in an effective way sensibly designed multidisciplinary strategy for developing suitable varieties for each of these stresses has been attempted during the last decade. Genomics is a field of supreme significance for elucidating the genetic architecture of complex quantitative traits and characterizing germplasm collections to achieve precise and specific manipulation of desirable alleles/genes. Advances in genotyping technologies and high throughput phenomics approaches have resulted in accelerated crop improvement like genomic selection, speed breeding, particularly in maize. Molecular breeding tools like collaborating all omics, has led to the development of maize genotypes having higher yields, improved quality and resilience to biotic and abiotic stresses. Through this book, we bring into one volume the various important aspects of maize improvement and the recent technological advances in development of maize genotypes with high yield, high quality and resilience to biotic and abiotic stresses
