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Author: G. Shiva Prasad
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659241673
Category :
Languages : en
Pages : 156
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Book Description
Rice (oryza sativa L.) is the most important staple food crop for more than 60% of the global population and forms the cheapest source of food and energy. Rice occupies 44.80 million ha area with 99.180 million tones production which is 42.4% of total food grains and productivity of 2214 kg/ha, In Andhra Pradesh it is grown in an area of 43.75 lakh ha is under rice cultivation with a production of 14.210 lakh tones and productivity of 3248 kg/ha. Rice yields are low in Telangana region during rabi season. In Telangana region the low temperature vary from 8oC to 16o C starting from December to first fortnight of February. optimum day temperature before heading is 31o-32o C and optimum night temperature is 21o-22o C and in the period for 15 days after heading vary from 8o to 16oC. Even after about three decades of the release of variety Tella hamsa. It is ruling variety for its cold tolerance during seedling stage and no other varieties developed are able to replace it. To develop cold tolerant rice varieties and to increase the present levels of heterosis for yield and utilize genetically divergent parents for inter and intra sub-specific crosses in rice.
Author: G. Shiva Prasad
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659241673
Category :
Languages : en
Pages : 156
Get Book Here
Book Description
Rice (oryza sativa L.) is the most important staple food crop for more than 60% of the global population and forms the cheapest source of food and energy. Rice occupies 44.80 million ha area with 99.180 million tones production which is 42.4% of total food grains and productivity of 2214 kg/ha, In Andhra Pradesh it is grown in an area of 43.75 lakh ha is under rice cultivation with a production of 14.210 lakh tones and productivity of 3248 kg/ha. Rice yields are low in Telangana region during rabi season. In Telangana region the low temperature vary from 8oC to 16o C starting from December to first fortnight of February. optimum day temperature before heading is 31o-32o C and optimum night temperature is 21o-22o C and in the period for 15 days after heading vary from 8o to 16oC. Even after about three decades of the release of variety Tella hamsa. It is ruling variety for its cold tolerance during seedling stage and no other varieties developed are able to replace it. To develop cold tolerant rice varieties and to increase the present levels of heterosis for yield and utilize genetically divergent parents for inter and intra sub-specific crosses in rice.
Author: International Rice Research Institute
Publisher: Int. Rice Res. Inst.
ISBN: 9711040182
Category : Plants
Languages : en
Pages : 138
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Book Description
Author: Pranab Basuchaudhuri
Publisher: CRC Press
ISBN: 1482245175
Category : Science
Languages : en
Pages : 212
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Book Description
Rice is the staple food for more than half of the world's population, yet cold temperatures during the cropping period cause a significant loss of yield. To cope with the world's increasing population, it is necessary to develop high yielding rice varieties that are tolerant to abiotic stress conditions, such as drought, salinity, and cold. This book provides a clear understanding of cold stress in rice in the hopes that it will provide insight to the subject for further research so that rice plants may be grown efficiently in cold regions with high productivity.
Author: International Rice Research Institute
Publisher: Int. Rice Res. Inst.
ISBN: 9711041480
Category : Technology & Engineering
Languages : en
Pages : 956
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Book Description
Regional Perspective. Rice production in Africa: an overview. Rice in eastern and southern Africa: the role of international testing . Varietal improvement research in rice for Africa. Potential rice varieties for East Africa. High yielding varieties technology project for rice in tropical Africa. Insect pests and diseases of rice in Africa. National Rice Research And Production. Rice production in Kenya. Key research areas on irrigated rice in Kenya. Rice in Tanzania. The status of rice production, consumpuon, and research in Zimbabwe. , Rice research in Zimbabwe. The Zina year rice project in Madagascar. Rice in Malawi. Country report for Zambia with emphasis on activities and constraints to rice production. A review of rice research in Zambia past, present, and future prased. Recommendations. Monitoring tour in Zambia and Tanzania.
Author: Virgilio Cedro Andaya
Publisher:
ISBN:
Category :
Languages : en
Pages : 320
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Book Description
Author: Michael Allan Zenon Hornitzky
Publisher:
ISBN: 9781741511536
Category : Bees
Languages : en
Pages : 18
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Book Description
Nosema apis causes one the most important diseases of honey bees but is mostly overlooked by beekeepers as there are no characteristic obvious symptoms of disease it is known as 'the silent killer'. The repercussions of infection with this parasite are equivalent to the losses caused by all of the other diseases, including the more easily diagnosed brood diseases. This study consists of a literature review outlining the different facets of N. apis infections, including a section on the methodology for counting N. apis spores in adult honey bees, and a survey of honey bee colonies to determine the prevalence and severity of N. apis under Australian conditions.
Author: Stephen J Banta
Publisher: World Scientific
ISBN: 981447116X
Category : Technology & Engineering
Languages : en
Pages : 954
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Book Description
The Rice Genetics Collection of past symposia and other selected literature contains nearly 4,400 pages of searchable information on rice genetics and cytogenetics published by the IRRI and its partners since 1964. In addition to the five genetics symposia held at 5-year intervals since 1985, the collection contains classic publications that kicked off significant reporting on these subjects in the early 1960s. This collection is a comprehensive and historical documentation on the subject of rice genetics, spanning 45 years of research and scholarly work.Held in 1985 and published the following year, Rice Genetics I contains 77 chapters from various contributors on topics dealing with rice genetic research, including systematics and evolution; varietal diversity and reproductive barriers; karyotype, polyploids, and trisomics; linkage maps; genetics of morphological and physiological traits; genetics of stress tolerance, disease resistance, insect resistance, and quantitative traits; cytoplasmic male sterility and fertility restoration; mutagenesis; tissue and cell culture; and genetic engineering.
Author: Jauhar Ali
Publisher: Springer Nature
ISBN: 3030665305
Category : Technology & Engineering
Languages : en
Pages : 507
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Book Description
This book is open access under a CC BY 4.0 license. By 2050, human population is expected to reach 9.7 billion. The demand for increased food production needs to be met from ever reducing resources of land, water and other environmental constraints. Rice remains the staple food source for a majority of the global populations, but especially in Asia where ninety percent of rice is grown and consumed. Climate change continues to impose abiotic and biotic stresses that curtail rice quality and yields. Researchers have been challenged to provide innovative solutions to maintain, or even increase, rice production. Amongst them, the ‘green super rice’ breeding strategy has been successful for leading the development and release of multiple abiotic and biotic stress tolerant rice varieties. Recent advances in plant molecular biology and biotechnologies have led to the identification of stress responsive genes and signaling pathways, which open up new paradigms to augment rice productivity. Accordingly, transcription factors, protein kinases and enzymes for generating protective metabolites and proteins all contribute to an intricate network of events that guard and maintain cellular integrity. In addition, various quantitative trait loci associated with elevated stress tolerance have been cloned, resulting in the detection of novel genes for biotic and abiotic stress resistance. Mechanistic understanding of the genetic basis of traits, such as N and P use, is allowing rice researchers to engineer nutrient-efficient rice varieties, which would result in higher yields with lower inputs. Likewise, the research in micronutrients biosynthesis opens doors to genetic engineering of metabolic pathways to enhance micronutrients production. With third generation sequencing techniques on the horizon, exciting progress can be expected to vastly improve molecular markers for gene-trait associations forecast with increasing accuracy. This book emphasizes on the areas of rice science that attempt to overcome the foremost limitations in rice production. Our intention is to highlight research advances in the fields of physiology, molecular breeding and genetics, with a special focus on increasing productivity, improving biotic and abiotic stress tolerance and nutritional quality of rice.
Author:
Publisher: Int. Rice Res. Inst.
ISBN: 9711040018
Category :
Languages : en
Pages : 182
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Book Description
Author: Sant Singh Virmani
Publisher: Springer Science & Business Media
ISBN: 3642851150
Category : Technology & Engineering
Languages : en
Pages : 199
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Book Description
Rice is the most important food crop of the developing world and the demand for it is growing. Provided here is a concise account of hybrid breeding in rice, a newly deployed breeding approach to increase the yield. Research on heterosis, male sterility systems, outcrossing mechanisms, disease/insect management, and grain quality considerations in hybrid rice are reviewed. The book contains a wealth of useful information for practicing hybrid rice breeders, seed producers, researchers, and students of plant breeding.
