Panicum

Continuous labeling—laboratory Defoliation N levels shading Green panic (Panicum mcmmum) 56... 

A final, highly specialized procedure for monitoring carbon flow in plants involves the use of "CO . The use of this positron gamma-emitting isotope of C, with a half-life of 20.3 min, allowed several physiological parameters of my-corrhizal and non-mycorrhizal plants of Panicum coloratum to be measured simultaneously in real time (82). However, the technical problems associated with using "COi, particularly the ability to produce i.sotopes of carbon, and with handling this short half-life are likely to limit this approach to specialised facilities. 

H. V. A. Bushby, I. Vallis. and R. J. K. Myers, Dynamics of C in a pasture grass (Panicum maximum var. Trichoglume)-soil. sy.stem. Soil Biol. Biochem. 24 381 (1992). 

Large crabgrass and fall panicum rated 31 days after planting, cRated 49 days after planting. 

Panicum maximum, dried leaves p-Hydroxyphenylacetic acid 74... 

Common millet Panicum miliaceum L., barnyard grass E. crus-galli (L.) P. Beauv., bristly foxtail Setaria verticillata (L.) P. Beauv., redroot pigweed Amaranthus retroflexus L. 

It is possible that the resistance of certain plants to this chemical may reduce its effectiveness in the future, as the more susceptible weeds are killed and the resistant ones multiply. In Hawaii, Panicum repens was not killed even at 80 pounds per acre. Digitaria, nut grass, and Bermuda grass show some resistance in Puerto Rico. On one farm treated with CMU at 4 pounds per acre, almost pure stands of D. sanguinalie have appeared in some areas. 

Wunderlich, B. (1973)."Macromolecular Physics," Vol. 1. Academic Press, New York, NY. Yanez, G. A., Walker, C. E., and Nelson, L. A. (1991). Some chemical and physical properties of proso millet (Panicum milliaceum) starch. J. Cereal Sci. 13, 299-305. 

Migliore L, BrambiUa G, CozzoUno S, Gaudio L (1995) Effect on plants of sulphadimethoxine used in intensive farming (Panicum mdiaceum, Pisum sativum and Zea mays). Agric Ecosyst Environ 52 103-110... 

Table II. Inhibition of root growth of Panicum miliaceuiii (PC50) under the influence of 31...

Stringheta, P.C., Bobbio, P.A., and Bobbio, F.O., Stability of anthocyanic pigments from Panicum melinis. Food Chem., 44, 37, 1992. 

Case 38,—Millet starch—Panicum miliaceum— exhibiting the polygonal form they measure 9 thou-... 

O. pungens, Ollochloa nodosa, Panicum aquaticum, P. clandesti-num, P. distichum, P. hallii, P. incomtum, P. indicum, P. patens,... 

Sridhar, R. and Lakshminarayana, G. (1994). Contents of total lipids and lipid classes and composition of fatty acids in small millets Foxtail (Setaria italica), Proso (Panicum mili-aceum), and finger (Eleusine coracana). Cereal Chem. 71, 355-359. 

Kern, A.D., W.F. Meggitt, and D. Penner (1975). Uptake, movement, and metabolism of cyanazine in fall panicum, green foxtail, and com. WeedSci., 23 277-282. 

Thompson Jr. L.(1972a). Metabolism of chloro-s-triazine herbicides by Panicum and Setaria. Weed Sci., 20 584-587. 

In some triazine-resistant species where resistance is due to more rapid metabolism of the herbicide, the weeds develop resistance gradually and may be only slightly resistant. This is especially true with some of the monocot or grass weeds that are already partially inherently resistant to atrazine (Thompson et al. 1971 Gressel et al., 1982, 1983). DePrado et al. (1995) found that fall panicum has the capacity for rapid detoxification, which is slightly greater in plants from fields that have been repeatedly treated with atrazine. 

DePrado, R., E. Romera, and J. Menendez (1995). Atrazine detoxification in Panicum dichotomiflorum and target site in Polygonum lap-athifolium. Pestic. Biochem. Physiol., 52 111. 

Fall panicum Guineagrass Winter annual broadleaves Common sunflower... 

Broadleaf panicum Morningglories Annual grasses (crabgrass, junglerice, goosegrass) Pigweeds... 

Foxtails Pigweeds Itchgrass Annual grasses (Texas panicum... 

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