Download or read book The response of two sunflower varieties to nitrogen fertilizer April 1996 written by Tlhaloganyo O. Ofentse and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on 1982 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Morphological differences between high and low yielding hybrids of sunflower; A study of the morphological characters of sunflower achenes in relation to their emergence under adverse conditions; The effects of ethephon on dormant seeds of cultivated sunflower (Helianthus annuus L.); Pathways of yields elaboration in sunflower under various water stresses; The behaviour of some sunflower genotypes (Helianthus annuus L.) under various flooding regimes; Tolerance of sunflower hybrids to competition among plants; Growth analysis irrigated sunflower at two plant populations; Estimation of leaf area on sunflower plants; Photosynthesis in sunflower leaves: RUBP carboxylates properties activities and quantitative determination; Effects of defoliation during seed filling of sunflower plants; Evolution for biosynthesis during the cycle of development of sunflower, and assimilates partition among organs and constituents; The sunflower roots activity in the field; Effect of daylength in the time of inflorescence initiation and rate of post-initiation development in two early sunflower cultivars; Yield and harvest index of sunflower cultivars: influence of duration and water stress; Determination of physiological nad harvest maturity in sunflower; Effect of physiological maturation on quantitative characters of sunflower varieties and hybrids; Growth and development of sunflower in a semi-arid environment; Determination of regional strategies for sunflower production; Effect of early spring planting of sunflower on yield in Iraq; Oil content oi oilseed sunflower (Helianthus annuu L.) hybrids grown in Texas, USA; Effect of the planting date of sunflowers on the agronomic characteristics and on the quantity and quality of oil; A technique for selecting sunflower genotypes with temperature-stable linoleic acid synthesis; Water requirement of sunflower in a semi-arid environment; Effect of irrigation on water use pattern in sunflower root zone; Influence of plant population on phasic development, growth, yield and water use of irrigated sunflower in a semi-arid environment; The response of sunflower to strategies of irrigation; Salinity and sunflower agronomy in Egypt; Effect of sodium chloride on the lipid composition of sunflower oil; Nitrogen nutrition of sunflower with special reference to nitrogen stress; Effect of nutritional and cultural treatments on seed production on winter grown sunflower; The response of irrigated sunflower cultivars to nitrogen fertilizer; Studies of the uptake of soil and fertilizer nitrogen by sunflower using 15-N techniques; Interactions between moisture supply, N and P, in the performance of an open-pollinated and a hybrid sunflower variety in a semi-arid environment; Differential response to two sunflower cultivars to boron fertilization; Effect of phosphorus and nitrogen fertilization levels on the yield and oil content of sunflower (Helianthus annuus L.); Pollination studies in hybrid sunflower seed production; Sunflower hollow seededness and nitrogen fertilization in relation to harvest time; Effect of achene (seed) size on subsequent growth and development of hybrid sunflower (Helianthus annuus L.); Behaviour of NS sunflower hybrids harvested at different seed moistures; Evaluation of losses in the harvesting of sunflower; Maturity and seed quality in sunflower: physiobiochemical assessment through accelerated ageing; Irrigated sunflower production from the red-brown soils of Northern Victoria; Irrigated sunflower in the Ord River Valley; Potential for pest management in sunflowers in Australia; Insect and mite pests of Queensland sunflowers; Seasonal abundance of the Rutherglen bug (Nysius vinitor) on sunflowers and weeds in N.E. Victoria; Effect of moisture stress on damage to sunflowers by Rutherglen bug (Nysius vinitor); Sunflower seed yield as influenced by pollination and insect pests; Effect6 of maldison (malathion) ULV) on sunfloer insects; Phytomelanin: development and role in hybrid resistance of Homoeosoma electellum larvae (Lepidoptera: Pyrallidae); The control of alternaria blight of sunflowers in Eastern Australia; Some factors affecting the incidence and importance of sunflower rust in Australia; Investigations into increased rust (Puccinia helianthi) intensity on some hybrid sunflower cultivars grown in Queensland; Occurrence of sunflower diseases in Portugal in the last four years (1978 - 1981); White blister and petiole blight of sunflowers caused by Albugo tragopogonis; Stemphylium sp. the agent of reddish-brown spot on sunflowers stem; Further studies on the sunflower disease caused by Diaporthe (Phomopsis) helianthi and possibilities of breeding for resistance; A leaf spot disease of sunflower caused by Septoria sp.; The distribution, and incidence of charcoal rot of sunflower in Eastern Australia; Effect os stand density on the occurrence of charcoal rot and oil yield of some sunflower hybrids; Methods of studying the reaction of some cultivars and wild species of sunflower to infection by Sclerotinia sclerotiorum (Lib) de Bary; Field inoculation of sunflower for Sclerotinia sclerotiorum basal stalk rot and virulence of isolates from various hosts; Coniothyrium minitans as a treatment for sclerotinia wilt of sunflowers; The use of high frequency microwaves on sclerotia to control inoculum of Sclerotinia sclerotiorum; Use of the enzyme-linked immunosorbest assay (Elisa) for the detection of downy mildew (Plasmopara halstedii) in sunflower; Resistance to a new race of sunflower downy mildew; A new race of Verticillium dahliae; Models for potential status of infection: some aspects of the functioning of the climate x plant x pest system; Models for potential status of infection: application to sunflower-botrytis; A model for the development of grey mould (Botrytis cinerea) in sunflower heads; Losses caused in sunflowers by birds in Hungary; Pest status of parrot species on sunflowers in northern N.S.W.; An innovation in the control of galahs, Cacatua roseicapilla, and sulphur-crested cockatoos, Cacatua galerita, in sunflower; The economics of chemical dessication and mechanical drying as methods of reducing bird damage in sunflower; Very early combine harvesting of sunflower to avoid bird depredation; Allelopathic activity of cultivated sunflowers; Post-emergence weed control in sunflower; Information concerning the effect of cultivation as a complement for weed control; Utilization of wild Helianthus annuus in germplasm development; Cluster analysis of wild Helianthus annuus accessions; Variability on oil content in seed pf Helianthus spp.; Variation in oil and quality of wild annual sunflower (Helianthus annuus L.) populations in a uniform environment; Variability in the composition of higher fatty acids in oil of sunflower inbreds with different oil contents in seed; Variability in protein and amino acid contents in different sunflower inbreds; Investigations into seedset in sunflowers; Effect of isolation bags on seedset in sunflowers; Effect of stigmatic manipulation of pollination and seedset in sunflowers; The inheritance of drought tolerance in sunflower; Inheritance of plant height and leaf number in diallel crossing of sunflower inbreds; Inheritance of trichome characteristics in sunflower, Helianthus spp.; Genetic implications in transfering fertility restorer genes to a new genetic background in sunflower Helianthus annuus L.); Correlations for important agronomic characters between parent lines and F1 hybrids of sunflower; Relationships among traits of inbreds and hybrids of sunflower; Maternal and embryo effects on the oleic and linoleic acid contents of sunflower oil; Maternal and paternal effects on the oil content of cypsela in F1 seed; Genetic effect of days to flowering in sunflower (Helianthus annuus L.) under short day regimes; Epistatic gene action in sunflower - a caution to sunflower geneticists and breeders; Use of multivariate techniques in a breeding programme to assit selection of sunflower inbreds and hybrids; Stratified masal selection on sunflower as breeding method for synthetic varieties for forage or grain; Selection of sunflower plants containing high linoleic acid and its agronomic significance; Selection in sunflowers for resistance to Rutherglen bug (Nysius vinitor); Chemically induced mutations in sunflower; Genetic advances by mass selection in the oil percentage of sunflower (Helianthus annuus L.); Performance of early maturing hybrids in Manitoba, Canada; Sunflower variety evaluation, Coonabarabran, NSW, Australia; Evaluation of sunflower hybrids in international trial plantings; Plant breeder's rights and varieties registration in France; An objective description of sunflower for varietal registration, plant variety protection and other purposes; Oil quality analyser; TBHQ in sunflower oil; Utilization of sunflower oil in making plastic fat products for edible uses by miscella interesterification process; Plant oils as a fuel for diesel engines: experiences with sunflower oil; Energy farming update: the bio-oil option?; Lysine availabity in sunflower meals for pigs and chiks; What will the market place expect from sunflower?.
Download or read book Nitrogen in Agriculture written by Takuji Ohyama and published by BoD – Books on Demand. This book was released on 2021-09-29 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen is the most important nutrient in agricultural practice because the availability of nitrogen from the soil is generally not enough to support crop yields. To maintain soil fertility, the application of organic matters and crop rotation have been practiced. Farmers can use convenient chemical nitrogen fertilizers to obtain high crop yields. However, the inappropriate use of nitrogen fertilizers causes environmental problems such as nitrate leaching, contamination in groundwater, and the emission of N2O gas. This book is divided into the following four sections: “Ecology and Environmental Aspects of Nitrogen in Agriculture”, “Nitrogen Fertilizers and Nitrogen Management in Agriculture”, “N Utilization and Metabolism in Crops”, “Plant-Microbe Interactions”.
Download or read book Fertilizer Abstracts written by and published by . This book was released on 1971 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Niger Guizotia Abyssinica L f Cass written by Getinet Alemaw and published by Bioversity International. This book was released on 1996 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Indian Journal of Agricultural Sciences written by and published by . This book was released on 2001 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Managing Cover Crops Profitably 3rd Ed written by Andy Clark and published by DIANE Publishing. This book was released on 2008-07 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cover crops slow erosion, improve soil, smother weeds, enhance nutrient and moisture availability, help control many pests and bring a host of other benefits to your farm. At the same time, they can reduce costs, increase profits and even create new sources of income. You¿ll reap dividends on your cover crop investments for years, since their benefits accumulate over the long term. This book will help you find which ones are right for you. Captures farmer and other research results from the past ten years. The authors verified the info. from the 2nd ed., added new results and updated farmer profiles and research data, and added 2 chap. Includes maps and charts, detailed narratives about individual cover crop species, and chap. about aspects of cover cropping.
Download or read book Agronomy Abstracts written by and published by . This book was released on 1995 with total page 1348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes abstracts of the annual meetings of the American Society of Agronomy; Soil Science Society of America; Crop Science Society of America ( - of its Agronomic Education Division).
Download or read book Field Crops and Vegetables written by United States. Bureau of the Census and published by . This book was released on 1942 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soils and Fertilizers written by and published by . This book was released on 1997-07 with total page 1258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Climate Smart Agriculture written by Samiha Ouda and published by Springer Nature. This book was released on 2022-01-01 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book tackles the main feature of water-smart, soil-smart and crop-smart practices and their integration to sustainably enhance food production. The book includes some insights on the implications of using climate-smart practices in irrigated and rain-fed agriculture, and suggests approaches to eradicate the negative effects of water scarcity, climate variability and climate change. The book reviews the most important crops resilient to climate variability and their resistance to other biotic and abiotic stresses, and contains the existing practices in Egypt that achieved the three pillars of climate-smart agriculture
Download or read book Handbook of Plant Nutrition written by Allen V. Barker and published by CRC Press. This book was released on 2016-04-19 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt: The burgeoning demand on the world food supply, coupled with concern over the use of chemical fertilizers, has led to an accelerated interest in the practice of precision agriculture. This practice involves the careful control and monitoring of plant nutrition to maximize the rate of growth and yield of crops, as well as their nutritional value.
Download or read book Indian Journal of Agronomy written by and published by . This book was released on 1997 with total page 774 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soilless Cultivation through an Intensive Crop Production Scheme Management Strategies Challenges and Future Directions written by Nikos Tzortzakis and published by Frontiers Media SA. This book was released on 2020-05-28 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nutrient Use Efficiency in Plants written by Malcolm J. Hawkesford and published by Springer. This book was released on 2014-11-14 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nutrient Use Efficiency in Plants: Concepts and Approaches is the ninth volume in the Plant Ecophysiology series. It presents a broad overview of topics related to improvement of nutrient use efficiency of crops. Nutrient use efficiency (NUE) is a measure of how well plants use the available mineral nutrients. It can be defined as yield (biomass) per unit input (fertilizer, nutrient content). NUE is a complex trait: it depends on the ability to take up the nutrients from the soil, but also on transport, storage, mobilization, usage within the plant, and even on the environment. NUE is of particular interest as a major target for crop improvement. Improvement of NUE is an essential pre-requisite for expansion of crop production into marginal lands with low nutrient availability but also a way to reduce use of inorganic fertilizer.
Download or read book Water wise Rice Production written by B. A. M. Bouman and published by Int. Rice Res. Inst.. This book was released on 2002 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plant Responses to Drought Stress written by Ricardo Aroca and published by Springer Science & Business Media. This book was released on 2012-10-12 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive overview of the multiple strategies that plants have developed to cope with drought, one of the most severe environmental stresses. Experts in the field present 17 chapters, each of which focuses on a basic concept as well as the latest findings. The following major aspects are covered in the book: · Morphological and anatomical adaptations · Physiological responses · Biochemical and molecular responses · Ecophysiological responses · Responses to drought under field conditions The contributions will serve as an invaluable source of information for researchers and advanced students in the fields of plant sciences, agriculture, ecophysiology, biochemistry and molecular biology.
