Illinois bundleflower (Desmanthus illinoensis (Michx.) Macmillan) has potential as a grain and forage legume for the American Midwest. Inoculant-quality rhizobia for this legume have been identified but not previously characterized. Rhizobia trapped from 20 soils in the natural range of the Illinois bundleflower had characteristics that placed them overwhelmingly within the species Rhizobium gi...

Two peaks of ethylene production occur during the development of cotton fruitz (Gossypium hirsutum L.). These periods precede the occurrence of young fruit shedding and mature fruit dehiscence, both of which are abscission phenomena and the latter is generally assumed to be part of the total ripening process. Detailed study of the dehiscence process revealed that ethylene production of individu...

The nature of the interaction between the black pecan aphid, Melanocallis caryaefoliae (Davis) (Hemiptera: Aphididae), and the chlorosis it causes to foliage of its pecan [Carya illinoinensis (Wangenh.) K. Koch)] host is poorly understood. Laboratory experiments were conducted on the settling behavior of the black pecan aphid, when provided chlorotic pecan leaf discs resulting from previous bla...

Vegetation control with herbicides is a common practice in pecan [Carya illinoinensis (Wangenh.) K. Koch] orchards that benefits both non-bearing and bearing trees. However, the appropriate size for the vegetation-free area surrounding bearing trees had not been resolved. Vegetation-free circles centered on the Tree 0, 0.9, 1.8, 3.7, and 7.3m in diameter were established at planting and tree pe...

Abstract Hickories (Carya Nutt.) include multiple stately, native trees that offer ornamental features and site adaptability. Immense interest exists in effectively producing these trees, however, due to their lag-phase shoot growth strong development of a taproot with minimal fibrous-root branching, exhibit resistance standard growing techniques are purportedly difficult transplant successfull...

The stand structure of shagbark hickory (Carya ovata) and soil properties in an extremely fragmented woodlot were examined in northeastern Illinois. The goal of this preliminary study was to examine the effect of extreme forest fragmentation (in a golf course environment) on the structure of oak-hickory remnants and the impact of golf course management on soil properties associated with these r...

An investigation on fatty acid, triacylglycerol, tocopherol, and xanthophyll contents thermal properties of pecan (Carya illinoinensis) kernel oils from two cultivars was carried out. The main acids were oleic followed by linoleic palmitic acids. predominant triacylglycerols OOL, OOO, OLL (where O stands for oleoyl L linoleoyl). Pecan oil is a rich source tocopherols, mainly γ-tocopherol. Two x...