Download or read book Predicting Seed Number in Grain Sorghum Sorghum Bicolor L Moench written by Rasheed Mustapha Olusegun Agunbiade and published by . This book was released on 1984 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Predicting Field Emergence of Grain Sorghum Sorghum Bicolor L Moench written by Sarvesh Paliwal and published by . This book was released on 1989 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterization of Seed Size in Sorghum Bicolor L Moench written by Frederick Robert Miller and published by . This book was released on 1974 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Seed vigour tests for grain sorghum Sorghum bicolor L written by Hendrik Willem Lock and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effect of Seed Vigor Upon Field Performance and Yield of Grain Sorghum Sorghum Bicolor L Moench written by Cilas P. Camargo and published by . This book was released on 1971 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hybrid grain sorghum seeds were aged artifically for 0, 3, 5, 7, and 11 days at 42oC and 100% RH, wich produced high, medium, low and lowest vigor level. Among the various laboratory tests performed, standard germination and field mergence, were the least sensitive in discerning the physiological condition of the seed lots. The speed of germination more accurately differentiated the degree of deterioration of the seed lots and was closety correlated to yield. Adverse effect of planting low vigor seeds was found to be related to plant height, panicle exsertion, anthesis, tillering capacity, length of the panicle, and yield. Less vigours seeds produced plants which were not able to "catch up" to the vigorous ones. These slow growing plants were significantly inferior in panicle exsertion to those produced from more vigorous seeds. Seeds aged for 7 and 11 days had their process of exsertion delayed for about 2 and 3 days, respectively. Anthesis, conseguently, was also significantly retarded. Tillering capacity of plants produced from low vigor seeds was significantly reduced, as well as grain yield. Primary head yield was also significantly reduced about 14% for the more deteriorated seeds, and 12% for the mixed treatment, as compared to the control. Yield reductions of 9, 4, and 3% were also detected in seeds aged for 7, 5, and 3 days, respectively, as compared to the check. Seed moisture content generally increases as the vigor level decreased, indicating that the process of maturation was delayed as a (...).

Download or read book Inheritance of Seed Weight in a Grain Sorghum Sorghum Bicolor L Moench Cross Inheritance of Germination Rate in a Grain Sorghum Sorghum Bicolor L Moench Cross Dosage Effect of Waxy Gene wx on Maltose Production and Degree of Hydrolysis of Three Grain Sorghum Sorghum Bicolor L Moench Varieties and Their F1 Hybrids written by Douglas Miguel Tovar and published by . This book was released on 1976 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Performance Stability Parameters Genetic Effects and Prediction of Performance in Single Three way and Double cross Hybrids of Sorghum Sorghum Bicolor L Moench written by George Anthony Ombakho and published by . This book was released on 1994 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Yield Potential Estimation in Grain Sorghum Sorghum Bicolor L and Effects of Plant Height on Yield Prediction of Corn Zea Mays L written by Shambel Maru Moges and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Some Influences of Seed Dimension on Physiological Quality and Field Performance of Grain Sorghum Sorghum Bicolor L Moench written by Joseph Kipsaat Arap Kemei and published by . This book was released on 1983 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effect of Seed Vigor Levels on Field Performance and Yield of Grain Sorghum sorghum Bicolor L Moench written by Amos Olaitan Ogundipe and published by . This book was released on 1984 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Predicting Crop Phenology written by Tom Hodges and published by CRC Press. This book was released on 1990-12-26 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Predicting Crop Phenology focuses on an analysis of the issues faced in predicting the phenology of crop plants and weeds. It discusses how these issues have been handled by active crop growth simulation model developers and emphasizes areas such as the role of modeling in agricultural research and the roles of temperature, length of day, and water stress in plant growth. This comprehensive text also discusses modeling philosophy and programming techniques in modeling crop development and growth. It presents up-to-date information on phenology models for wheat, maize, sorghum, rice, cotton, and several weed species. Predicting Crop Phenology reviews important data for agricultural engineers, plant physiologists, agricultural consultants, researchers, extension agents, model developers, agricultural science instructors and students.

Download or read book Grain Sorghum Field Emergence and Seed Vigor Tests written by C.E. Detoni and published by . This book was released on 1997 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: Poor emergence of sorghum [(Sorghum bicolor (L) Moench] affects the stand and potential yields. The major objective of this research was to find correlations among field emergence data and laboratory seed vigor tests. Thirty-two and 30 hybrids of sorghum were planted at three Virginia locations in 1995 and 1996, respectively. Field emergence was subsequently compared with results from laboratory tests that included: 1) standard germination; 2) osmotic-stress using polyethylene glycol 8000 (mw); 3) heat-shock using 2 hr at 50o.C stress; 4) electrical conductivity of steep water of germinating seeds; and 5) seed mass. Field emergence of grain sorghum differed among hybrids years and locations. Mean emergence across years and locations was 67.5%, whereas mean germination in the laboratory was 87.8%. There were interaction between hybrid and loction and between hybrid and year. Germination under optimal conditions (standard germination test) and with osmotic or heat-shock stress differed among hybrids. Regression analyses showed a weak correlation between laboratory germination (with or without stress) and field emergence in both years. The fresh weight of seedlings whether from standard germination or stress tests also differed among hybrids in both years, and the associations with field emergence were weakly correlated in 1996. Hybrids showed significant differences in radicle length when grown under laboratory stress in both years following standard germination. There was weak correlation with field emergence and radicle length following heat-shock treatment in 1996. The measurement of electrical conductivity in the seed steep water showed significant differences among hybrids. A weak correlation with field emergence was seen in 1996. Conductivity values per gram of seed and per cm2 of seed area revealed differences among hybrids. The correlation of these parameters with field emergence was higher than conductivity per seed. Seed mass varied among hybrids in both years, but was no correlation between seed mass and emergence. Of the laboratory parameters examined, germination proved to be the most consistent predictor of variations in field emergence of sorghum hybrids.

Download or read book Variation in Seed Specific Gravity in Sorghum Sorghum Bicolor L Moench written by Alcira Susana Goggi and published by . This book was released on 1990 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Relationships of Seed Size and Density to Seed Quality in Sorghum Sorghum Bicolor L Moench written by Joseph E. Cortes and published by . This book was released on 1987 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Seed Density and Quality Relationships in Sorghum Sorghum Bicolor L Moench written by Songboon Wattiranggoon and published by . This book was released on 1989 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Variation in Seed Specific Gravity in Sorghum Sorghum Bicolor L Moench written by A.S. Goggi and published by . This book was released on 1990 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seeds of seven hybrid and open pollinated sorghum cultivars were separated with sucrose density solutions into four specific gravity (SG) classes for studies on the effects of seed SG on field performance. The seeds were planted at different densities to provide three levels of competition: "normal" planting density; one high and one low SG seeds in the same hill; and single seeds in widely spaced hills, no competition. There were no differences among the high, medium-low and unseparated (control) seed SG treatments for emergence, vegetative and reproductive development for the normal density plantings. Yield, however, was significantly lower for plants of the unseparated (control) seeds as compared to the SG separated seeds. When high and low SG seeds were planted in the same hill, emergence of the high SG seeds was higher and they produced more vigorous plants that produced more tillers, matured earlier and yielded more as compared to those from low SG seeds. In the case of high and low SG seeds planted at non-competitive spacing, emergence, plant height, number of tillers and yield were higher and the number of days to panicle exsertion and anthesis were fewer for the plants from the high SG seeds as compared to those from the low SG seeds. Priming of high SG seeds did not enhance plant performance above the level of the high SG unprimed seeds. Seed SG was greatly affected by the degreee of weathering and immaturity. As the degree of weathering or immaturity increased, the percentages of seeds in the two highest SG classes sharply declined, while those for the two lowest SG classes sharply increased. Seeds from the intense weathering treatments exhibited cavitation and profuse fungal growth in the placental sac area and in the embryo. Similar cavitation was observed in seeds from the immaturity treatments. Differences in the speed of germination among the unweathered, mature, high SG seeds appeared to be related to differences in permeability of the pericarp to water and/or oxygen.

Download or read book Effect of Weathering on Sorghum sorghum Bicolor L Moench Seed Quality written by Ahmed A. Aziz and published by . This book was released on 1980 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: