Found inside – Page 15Readings were taken in the seedling and adult stages on plants incubated at temperatures of 65-700 F. and 80-850 F , with the following races : 11 ... Found inside – Page 49In conclusion , it might be stated in a general way that there is a wider temperature range for infection of seedling plants by rust than of plants in the heading stage . This is especially true of the higher temperatures . The temperatures at which ... Found inside – Page 11Comparing now Tables VII and VIII we see that weeks possessing a mean daily temperature of 17.4° C. and with five to ... 21 plants each — 15 healthy plants and 6 plants inoculated with rust about to sporulate when the experiment was set up. Found inside – Page 23The variable factors are temperature and precipitation , and relatively minor ... of phenological development of the host plants and produce significant ... Found inside – Page 18-15that primary inoculum of this rust comes from central Nepal. ... The average minimum temperatures in the plains during December-February are between 7° and ... Found inside – Page 294294 On Mildew , Blight , or Rust . ... is the cause of mildew or rust , and for plant ; that the uncongenial temperature the following reasons :thereby ... Found inside – Page 34Kochman JK (1979) The effect of temperature on development of soybean rust. Australian Journal of Agricultural Research 30: 273–277. Kuchler F, Duffy M, ... Found inside – Page 328Like the Dutch Rules ' developed for late blight of potato ( 46 ) in the Netherlands or ' Temperature - Humidity Rules ' for England conditions ( 1 ) , Nagarajan and Singh ( 31 ) formulated ' Indian Stem Rust Rules ' . Accordingly , these rules ... Found inside – Page 114RH 30, delay in planting time from 15 September to 30 November 1985, ... losses in early sown crops are attributed due to high temperature (> 15 °C), ... Found inside – Page 175Multiple regression equation for rust disease intensity versus weather parameter Multiple regression equation - 74 . ... 97 Y = Disease severity , X , = Max . temperature , X2 = Min . temperature , X3 = Max . relative humidity , X4 = Min . relative ... Found inside – Page 324temperature (22–23 °C) for 1 month could not germinate (X.M. Chen unpublished data). ... rust pathogen, high temperatures may limit pathogen growth in plant ... Found inside – Page 33Following this period , temperatures were favorable for rust infection and development throughout the remainder of the growing season . Found inside – Page 377(1984) also detected temperature-sensitive genes conferring high-temperature resistance to yellow rust in wheat. Vanderplank (1982) quoted several cases ... Found inside – Page 632... Common leaf rust on roses growing favored by temperatures of 64 ° to 70 ° F . in areas with cold winters have those At 75 ° both are noticeably lower . Found inside – Page 1130... inoculation with average temperature range of 30 / 32 ° C and inoculum concentration of 107 cells / ml , 449 fusiform rust : a composite of aeciospores ... Found inside – Page 124Effects of duration , frequency , and temperature of leaf wetness periods on soybean rust . Plant Dis . 73 : 117-122 . 7. Bromfield , K. R. , Melching , J. S. , and Kingsolver , C. H. 1980 . Virulence and aggressiveness of Phakopsora pachyrhizi ... Found inside – Page 340Each spore is capable of infecting a healthy plant and producing successive generations of spores in about 10 to 15 ... The leaf or brown rust ( P. recondita ) has better tolerance to high temperature and a very wide temperature range for its ... Found inside – Page 142.1 Plant material All experiments were conducted with spring barley ... Furthermore it has an excellent resistance against mildew and leaf rust (Weiß ... Found inside – Page 181range of temperatures , are summarized in Table 1. ... LENGTH OF EXPOSURE TO INOCULUM ON THE INCIDENCE OF WHITE RUST OF WATER SPINACH Temperature ( ° C ) % plants infected after exposure to inoculum for : 2 h 4 h 6h 8 h ... Found inside – Page 76growth at 34°C. Again the temperature range that favors oak powdery ... There are Table 5.2 Rust spore types and their associated sporulation temperature. Found inside – Page 148Glasshouse temperatures were in the range 20-30°C. The experimental unit consisted of a pot (13 cm diam.) ... The trifoliate leaves of the Siratro plants were inoculated as, in preliminary studies, the rust did not establish well on the primary ... Found inside – Page 15the 23 hours the temperature was below 14 ° F. For 4 hours the temperature was below ... Ten days after freezing , records were taken on plant condition . Found inside – Page 61Unlike wheat stem rust (Puccinia graminis tritici) and linseed rust (M. lini), the teleutospores of this rust withstand the summer heat in the plains of ... Found inside – Page 99The arbitrary sub-division is complicated even further because the kind and amount of infection on a wheat variety can vary greatly with a change in temperature. Therefore, in all rust identification studies, constant temperature greenhouses ... Found inside – Page 41Brown rust Leaf rust Puccinia recondita (Roberge ex Desmazières, 1857) Anchusa and Echium spp.; some other Boraginaceae. Leaves. Temperature preference ... Found inside – Page 204The period required for sporulation (urediniospores) in black stem rust of wheat is found to be 5 days at 24°C. If the temperature is lowered to 0°C, ... Found inside – Page 17size as those on plants grown in the treatment , oat - line , and rust - race greenhouse . ... producing zinc , and copper and manganese , the rust infection of the oat plants , and temperature - sensitive reaction was showed no within - treatment ... Found inside – Page 145Other coating types are being exploited , to protect stacks and gas scrubbing plant for example , but these are beyond the immediate scope of this paper . ... ash deposition on surfaces ; associated corrosion rates then accelerate quite narkealy with further reductions in metal temperatures . ... Analysis of the corrosion products revealed mainly goethite ( rust ) with significant quantities of water soluble iron ... Found inside – Page 45reactions to adult plant reactions . Deviations from the general methods described are given under the individual experiments . Effect of Temperature on Host Development , Severity of Rust Infection , Incubation Period , and Time Required for ... Found inside – Page 227Relation of rust incidence to climatic conditions . Temperature , relative humidity , and precipitation data for 1975-76 from a weather station of the ... Found inside – Page 262Cloudy weather, with high humidity and low temperatures is conducive for rust attack. Wheat plant requires about 25–30°C optimum average temperature at the ... Found inside – Page 17Uredlospores Urediospore production ag affected by temperature was noted on 50 ribes plants on each of which approximately eight leaves were inoculated with blister rust . These plants were of the following species : 37 bushes Ribes ... Found inside – Page 400The increase in temperature favors pests like coffee berry borer and fungus like leaf rust. Leaf rust disease has caused considerable decrease in yield of ... Found inside – Page 42A. Candida and 45 days old highly susceptible Pusa bold {Brassica juncea). plants raised in 25 cm earthen pots at the ... Sporangial suspension from a single isolated mature pustule of white rust was made in 10 ml tap water in a 100 ml ... Daily record of minimum and maximum temperature and relative humidity was kept. Found inside – Page 52James H. Rust. Turbine efficiencies usually vary from 0.75 to 0.85 for nuclear power plants and 0.8 to 0.9 for fossil - fueled ... ( 3 ) Heat Exchangers The process of transferring heat results in an irreversibility because temperature differences are ... Found inside – Page 24... of resistance is complete , following rust infections , is through manipulation of the sensitivity of expression of the Sre gene to temperature . Found inside – Page 45and Oat Stem Rust and Oat Crown Rust We return here to temperatures likely to prevail in fields in which disease can occur in a susceptible variety, ... Found inside – Page 112119-69 Genes , Larvae , Oulema melanopus , Plant breeding , Plant genetics ... 2104-69 COMANDRA RUST DAMAGE TO PONDEROSA PINE IN OREGON AND WASHINGTON . Found insideThe Response Of Plants To Rising Levels Of Atmospheric Carbon Dioxide Edgar R. Lemon ... temperature, impact on plant productivity or light. Found inside – Page 569The variety lumillo was not genetically pure for rust resistance , and , as a consequence , a very small number of plants ... As has already been stated , all the experiments were carried out at both a high ( 75 ° F. ) and a low temperature ( 60 ° F. ) ... Found inside – Page 137Dlac . roletanco , ( continued ) Dlacan resistance , ( continued ) Fusarium oxysporum 1.sp.copae , plant breeding ... association , Puccinia graminis 1.sp.tritici stern rust , plant breeding genes , linkage temperature , Acyrthosiphon pisum ... Found inside – Page 91B , Fusiform - rust cankers on 1–0 slash ( left ) and longleaf pine seedlings ... When , at a given temperature , the host plant germinated and grew rapidly ... Found inside – Page 85APPENDIX A MODEL SEED - EXTRACTING PLANT FOR LODGEPOLE PINE CONES The ideal seed ... With proper adjustment of temperatures , these principles should apply ... Found insideLIST OF TABLES Table Title Page 1 Effect of fusarium root rot and common rust on the growth and transpiration of corn plants 67 2 69 3 74 4 Effect of fusarium root rot and , common rust on the uptake of soil - applied 14c - carbofuran and ... Found inside – Page 315Tollenaar and Houston ( 15 ) concluded that a mean daily temperature between 18.4 ° C and 22.3 ° C was lethal to stripe rust under field conditions at Davis ... Found inside – Page 718YARwooD, C.E.: Crop value and disease. Plant Disease Reptr. 46, 755–757 (1962). YARWOOD, C.E.: Predisposition to mildew by rust infection, heat, abrasion, ... Therefore, in All rust identification studies, constant temperature greenhouses... Found inside – Page 18-15that inoculum... A given temperature, the host plant germinated and grew rapidly... Found inside – Page 632... Common rust! Severity, X, = Max range 20-30°C of duration, frequency, and of... 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