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Book Sorghum Bibliography 1977 80

Download or read book Sorghum Bibliography 1977 80 written by and published by . This book was released on 1984 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book National Agricultural Library Catalog

Download or read book National Agricultural Library Catalog written by National Agricultural Library (U.S.) and published by . This book was released on 1980 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Evaluation of Forage Sorghum Hybrids for Resistance Against Shoot Fly Atherigona Soccata Ronadani and Stem Borer Chilo Partellus Swinhoe

Download or read book Evaluation of Forage Sorghum Hybrids for Resistance Against Shoot Fly Atherigona Soccata Ronadani and Stem Borer Chilo Partellus Swinhoe written by Tarun Verma and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Tropical Pest Management

Download or read book Tropical Pest Management written by and published by . This book was released on 1984 with total page 982 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Economic Impact of Greenbug Resistant Grain Sorghum Varieties

Download or read book Economic Impact of Greenbug Resistant Grain Sorghum Varieties written by Gerard Dharmaratne and published by . This book was released on 1986 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: The greenbug Schizaphis graminum (Rodini), became an important pests of grain sorghum in the late 1960's. To control the pest with a minimum use of insecticides, resistant sorghum hybrids were developed and became available to farmers in 1976. An evaluation of the performance of these greenbug resistant hybrids with respect to the conventional nonresistant hybrids was performed using a sample of 40 grain sorghum farmers in the Texas Blacklands. A production function was estimated using data from 1977-81. Interaction terms between variety and insecticide use indicated a yield reduction of nearly 300 pounds of grain sorghum per acre when insecticides were not applied to nonresistant grain sorghum. The parameter estimate was significant at the 90% level. Estimated yield reduction for resistant hybrids when insecticides were not applied was 193 pounds per acre and was not statistically significant at the 90% confidence level. The acreage of greenbug resistant grain sorghum increased from 1977-81, while acreage of nonresistant sorghum decreased. However, there were no significant differences among the mean yields or the yield variance (at the 95% confidence level) between the two sorghum types. The mean insecticide use was 0.24 applications higher for the nonresistant hybrids than for the resistant hybrids. Economic analysis showed that cultivation of the resistant sorghum using insecticides generated the highest net returns per acre ($82.27). The greenbug resistant grain sorghum produced across the country without use of insecticides had an estimated increase in farmer profits of $53,514 over the production of nonresistant sorghum using insecticides. Considering these differences in the net returns and reduced insecticide applications, the use of greenbug resistant grain sorghum shows an economic and ecological advantage over nonresistant grain sorghum in the Texas Blacklands.

Book Bibliography of Agriculture

Download or read book Bibliography of Agriculture written by and published by . This book was released on 1980 with total page 916 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Biology of Sorghum Shoot Fly Atherigona Soccata Rondani on Its Resistant and Susceptible Forage Sorghum Genotypes

Download or read book Biology of Sorghum Shoot Fly Atherigona Soccata Rondani on Its Resistant and Susceptible Forage Sorghum Genotypes written by Purushotam Kumar Dhawan and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Control of Sorghum Shoot Fly

Download or read book Control of Sorghum Shoot Fly written by M. G. Jotwani and published by . This book was released on 1972 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Factors Associated with Resistance in Sorghum to Shootfly Atherigona Soccata Rondani

Download or read book Factors Associated with Resistance in Sorghum to Shootfly Atherigona Soccata Rondani written by P. Swarna Sree and published by . This book was released on 1991 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Effect of New Insecticides as Seed Dressers on Shootfly Atherigona Soccata Rondani Incidence and Plant Growth Characters of Sorghum Hybrid CSH 5

Download or read book Effect of New Insecticides as Seed Dressers on Shootfly Atherigona Soccata Rondani Incidence and Plant Growth Characters of Sorghum Hybrid CSH 5 written by S. M. Gujar and published by . This book was released on 1986 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Bibliography of Agriculture with Subject Index

Download or read book Bibliography of Agriculture with Subject Index written by and published by . This book was released on 1980 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Studies on the Inheritance of Resistance to Shootfly Atherigona Soccata Rondani of Sorghum

Download or read book Studies on the Inheritance of Resistance to Shootfly Atherigona Soccata Rondani of Sorghum written by A. B. Jeewad Ahmed Saeed and published by . This book was released on 1993 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: