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Book Effects of Aging on Germinability  Field Emergence  Conductivity and Volatile Aldehydes of Soybean  Glycine Max  L   Merrill  Seeds

Download or read book Effects of Aging on Germinability Field Emergence Conductivity and Volatile Aldehydes of Soybean Glycine Max L Merrill Seeds written by Mary G. McBroom and published by . This book was released on 1985 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book The Effect of Seed Size and Temperature on Germination  Emergence  and Growth of Soybeans  Glycine Max  L   Merrill

Download or read book The Effect of Seed Size and Temperature on Germination Emergence and Growth of Soybeans Glycine Max L Merrill written by Joseph Robert Overholt and published by . This book was released on 1974 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Evaluation of an Eletrical Conductivity Method for Rapidly Estimating Germination and Assessing Deterioration of Soybean  Glycine Max  L   Merrill  Seed

Download or read book Evaluation of an Eletrical Conductivity Method for Rapidly Estimating Germination and Assessing Deterioration of Soybean Glycine Max L Merrill Seed written by M. C. Miranda and published by . This book was released on 1981 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary objectives of these studies were to evaluate the effectiveness of the Agro-Sciences, Inc., Automatic Seed Analyzer (ASA-610) for predicting the germination of soybean seed lots and for detecting and monitoring deterioration of the seed. Ina comparison of predicted germination (PG) and standard germination (SG) percentages for 101 lots of soybean seed, PG was within + ou - 10% of SG for slightly over 60% of the lots. Since over and under-estimates of SG occurred with about equal frequency, use of the ASA-610 for assessing the quality of inconing soybean seed lots would result-on the average - in acceptance of lots of unacceptable quality, or discard of lots with acceptable quality in four out of every 10 cases. Conditioning the seed lots by various methods to increase seed moisture content to 13 +% generally increased the PG percentage but did not improve its accuracy in predicting SG unless the PG of non-conditioned seed underestimated SG. In cases where PG overestimated SG, conditioning of the seed before analysis with the ASA-610 substantially decreased the accuracy of the PG percentage; The ASA-610 was generally most accurate in predicting the germination of high quality seed lots, i. e., lots with SG percentagens above 90%. It was least accurate in predicting the germination of lots with SG below 80%. Use of the ASA-610 to detect and monitor the progress of seed deterioration produced much more meaningful and consistent results. The progress of deterioration resulting from different periods of field weathering and accelerated aging was reflected in increasing current flow values of the seed steep water. This was most evident when the current flow values for the individual seeds in a lot were plotted as a population conductivity profile.

Book Agronomy News

Download or read book Agronomy News written by and published by . This book was released on 1985 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sept.-Oct. issue includes list of theses and dissertations for U.S. and Canadian graduate degrees granted in crop science, soil science, and agronomic science during the previous academic year.

Book Evaluation of an Electrical Conductivity Method for Rapidly Estimating Germination and Assessing Deterioration of Soybean  Glycine Max  L   Merrill  Seed

Download or read book Evaluation of an Electrical Conductivity Method for Rapidly Estimating Germination and Assessing Deterioration of Soybean Glycine Max L Merrill Seed written by Miriana C. De Miranda and published by . This book was released on 1981 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Effect of Environment and Planting Date on Soybean  Glycine Max  L   Merrill  Seed Composition

Download or read book Effect of Environment and Planting Date on Soybean Glycine Max L Merrill Seed Composition written by Christopher L. Ray and published by . This book was released on 2005 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Evaluation of an Electrical Conductivity Method for Rapidly Estimating Germination and Assessing Deterioration of Soybean  Glycine Max  L  Merrill  Seed

Download or read book Evaluation of an Electrical Conductivity Method for Rapidly Estimating Germination and Assessing Deterioration of Soybean Glycine Max L Merrill Seed written by Miriana Cerovich de Miranda and published by . This book was released on 1981 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Some Effects of temperature on germination of soybeans  Glycine max  L   Merrill  as related to cultivar and seed vigor

Download or read book Some Effects of temperature on germination of soybeans Glycine max L Merrill as related to cultivar and seed vigor written by Carl Wayne Jordan and published by . This book was released on 1975 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Some Effects of Temperature on Germination of Soybeans  Glycine Max  L   Merrill  as Related to Cultivar and Reed Vigor

Download or read book Some Effects of Temperature on Germination of Soybeans Glycine Max L Merrill as Related to Cultivar and Reed Vigor written by Carl Wayne Jordon and published by . This book was released on 1975 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Effects of Short Periods of Accelerated Aging on Soybean  glycine Mas  l   Merrill  Seeds

Download or read book Effects of Short Periods of Accelerated Aging on Soybean glycine Mas l Merrill Seeds written by Petrus Bulan and published by . This book was released on 1993 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seeds of Braxton and Dare soybean cultivars were germinated after stored with or without drying it at 30 C following accelerated aging (AA) in high moisture level (approx. 100% RH) at 40 C for 0, 12, 24, 36, 48, 60 and 72 hour periods. germination of seeds of both cultivars periods had the greatest effect on seed of germination. The beneficial effects of these short periods of AA on grmination performance of soybean seeds were brief and dissipated or become negative when the aged seeds were stored for any appreciable period. The harmful effects of aging was evident at 0 day for the 72 hr. AA period and increased rapidly as planting was delayed after the aging treatment. [Author's abstract].

Book Aged Soybean  Glycine Max  L   Merrill  Seeds

Download or read book Aged Soybean Glycine Max L Merrill Seeds written by Soja Sekharan and published by . This book was released on 2005 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: The physiology of seed deterioration was studied with accelerated and naturally aged soybean (Glycine max (L.) Merrill) seeds. Accelerated aged (AA) seeds of "Flint" were aged for 0, 24, 48, 72 and 96 h at 41 and 43°C and 100% relative humidity. Seedling vigor analyses for vigor index and growth were analyzed with scanned images of 3d-old seedlings. Embryonic and cotyledonary tissues from 3d-old seedlings were used for mitochondrial isolation and specific enzyme activity studies. In cotyledonary tissues, respiratory activities were lower than embryonic tissues. Antioxidant activities of glutathione peroxidase were at high levels in accelerated aged embryonic tissues. Increased oxygen uptake measurements with reduced b-nicotinamide adenine dinucleotide and reduced oxidation with succinate as substrates indicated respiratory capacities of isolated mitochondria. Oxygen uptake with both these substrates was higher in embryonic mitochondria than from cotyledons. These studies emphasize that specific enyme activities in mitochondria increased in embryonic tissues and decreased in storage tissues of soybean seeds subjected to AA treatment. Transmission electron microscopy of the ultra-structure of mitochondria from embryonic tissues of aged seeds indicated damage to inner membranes. Seedling vigor was studied with an automated imaging technique called the Seedling Vigor Imaging System (SVIS®). Following AA, the aged seeds of "Flint" were treated with a seed coating fungicide, Rival® [Captan N-Trichloromethylthio-4-cyclohexene-1,2-dicarboximide)], to reduce storage fungal infection. Germination, dead seed percentages and SVIS® parameters such as growth, vigor index and uniformity were highly significant for AA duration, temperature and Rival® treatment. Independent experiments with "Kottman" seeds were tested with SVIS® for seedling vigor effects on standardized germination testing protocols such as alternating temperatures of 20-30°C and 25°C, water content in germination papers and time of scan. Intra- and inter-seed lot variability of seed lots was also evaluated. These studies emphasize that mitochondrial activities differ in tissues of aged seeds and SVIS® could be used for seedling vigor testing in soybean.

Book The Effect of Soybean  Glycine Max  L   Merrill  Seed Quality on Field Performance

Download or read book The Effect of Soybean Glycine Max L Merrill Seed Quality on Field Performance written by Visanu Boonying and published by . This book was released on 1974 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: Estudo foi conduzido para avaliar a influencia do vigor e tamanho da semente de soja e seu desempenho no campo. O tamanho da semente foi classificado em grande, media e pequena com separacao manual. Sementes visivelmente doentes foram selecionadas de cada classe de tamanho. As sobras foram consideradas nao doentes. Os testes de avaliacao de laboratorio foram: padrao de germinacao, crescimento da raiz, resposta da aceleracao da idade, condutividade e absorcao de umidade.