Download or read book A Bibliography of the Sugarcane Borer Diatraea Saccharalis Fabricius 1887 1980 written by and published by . This book was released on 1981 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Agricultural Reviews and Manuals written by and published by . This book was released on 1981 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Resistance of Tropical Maize to Fall Armyworm Spodoptera Frugiperda J E Smith and Sugarcane Borer Diatraea Saccharalis F written by Clair H. Hershey and published by . This book was released on 1978 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: CIMMYT's program for developing resistance to the sugarcane borer has based primarily on screening under natural infestation in an unreplicated insect nursery. To test the effectiveness of that system, the 10 least damaged and 10 most damaged fmilies (based on insect nursery data from 1975 to 1976) from each of 10 CIMMYT population were grown from remnant seed and tested for resistance in 1977 at Poza Rica, Veracruz. Six populations were artificially infested at silking with newly hatched sugarcane borer larvae; the others received only natural infestation. For eight of the 10 populations, the gropu of 10 families selected as most resistent had a lower mean percent damaged internodes than the susceptile group.These means were significatntly different (5% level) for only two of the populations. artificial infestation was effective in increasing dmage as compared to natural infestation only ofr three of the six infested population (mean increase of 7.7% damaged internodes). This was apparently due to low levels of only about 10 to 15 larvae infested per plant. The variation among population for percent damaged internodes was relatively small, with a range of only 24.1% for Cogollero to 33,4% for Antigua X Veracruz 181 (Pedigree selections.) Genetic varation among families was to a large degree masked by a high environmental variability. For three populations additional damage evaluations were made, including number of tunnels per plant, tunnel length per plant, number of tunnels per damaged internode (...).

Download or read book Progress Report written by and published by . This book was released on 1968 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Elements of Integrated Control of Sorghum Pests written by Food and Agriculture Organization of the United Nations. Plant Protection Service and published by Food & Agriculture Organization of the UN (FAO). This book was released on 1979 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rodenticides written by World Health Organization and published by Nicholson. This book was released on 1979 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Agriculture written by and published by . This book was released on 1976 with total page 1732 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the International Sorghum Entomology Workshop written by Vrinda Kumble and published by . This book was released on 1985 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Plant Breeding Abstracts written by and published by . This book was released on 1998 with total page 1648 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Circular written by United States. Department of Agriculture and published by . This book was released on 1941 with total page 718 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Pan American Tomato written by Edgar John Udine and published by . This book was released on 1941 with total page 718 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book 11th International Congress of Plant Protection written by Edwin D. Magallona and published by . This book was released on 1987 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Agrindex written by and published by . This book was released on 1986 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Field Infestation by Insects that Injure Rice in Storage written by W. A. Douglas and published by . This book was released on 1941 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Agriculture written by and published by . This book was released on 1991-10 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reducing Power Waste in Operating Cotton Gins written by Victor Leo Stedronsky and published by . This book was released on 1941 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sugar Journal written by and published by . This book was released on 1999 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: