НОВЫЕ МАТЕРИАЛЫ К ФЛОРЕ ВОРОНЕЖСКОЙ ОБЛАСТИ, "БОТАНИЧЕСКИЙ ЖУРНАЛ"

2012 ◽  
pp. 276-281
Author(s):  
В.А. АГАФОНОВ ◽  
Е.В. РАЗУМОВА ◽  
Б.И. КУЗНЕЦОВ ◽  
В.В. НЕГРОБОВ ◽  
О.В. ПРОХОРОВА
Keyword(s):  
Ipomoea Hederacea

Для территории Воронежской обл. впервые приводятся Astragalus pseudotataricus Boriss., Gagea scythica Artemczuk, Dodartia orientalis L., Ipomoea hederacea (L.) Jacq., Panicum capillare L., Polygonum argyrocoleon Steud. ex G. Kunze, Senecio dubitalis C. Jeffrey et Y. L. Chen, а также данные о новых местонахождениях, охраняемых на федеральном уровне, Fritillaria meleagris L., Orchis militaris L., Orchis coriophora L., не регистрировавшихся в области несколько десятилетий.

Enhancement of Herbicide Activity with an Isoparaffinic Oil Carrier

Weed Science ◽  
1971 ◽  
Vol 19 (6) ◽  
pp. 701-705 ◽  
Author(s):  
R. J. Burr ◽  
G. F. Warren
Keyword(s):  
Acetic Acid ◽  
Cyperus Rotundus ◽  
Setaria Viridis ◽  
Ipomoea Hederacea ◽  
Purple Nutsedge ◽  
Green Foxtail ◽  
Herbicide Activity ◽  
Dichlorophenoxy Acetic Acid ◽  
Agropyron Repens

Several herbicides were tested in the greenhouse on ivyleaf morningglory (Ipomoea hederacea(L.) Jacq.), green foxtail (Setaria viridis(L.) Beauv.), purple nutsedge (Cyperus rotundusL.), and quackgrass (Agropyron repens(L.) Beauv.) to determine the degree of enhancement in activity that could be obtained with an isoparaffinic oil carrier applied at 140 L/ha. The enhancement varied with the herbicide and with the species, ranging from 16-fold enhancement with 2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine (atrazine) and 2-sec-butyl-4,6-dinitrophenol (dinoseb) on ivyleaf morningglory to no enhancement of atrazine activity on purple nutsedge and quackgrass or (2,4-dichlorophenoxy)acetic acid (2,4-D) activity on quackgrass and ivyleaf morningglory. An oil adjuvant was less effective in enhancing dinoseb and 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea (linuron) activity than was the isoparaffinic oil carrier. Also, the isoparaffinic oil carrier emulsified in water was less effective than the undiluted oil in enhancing dinoseb activity on green foxtail, even though equal volumes of the isoparaffinic oil were applied.

Amiben Metabolism and Selectivity

Weed Science ◽  
1968 ◽  
Vol 16 (3) ◽  
pp. 283-288 ◽  
Author(s):  
E. W. Stoller ◽  
L. M. Wax
Keyword(s):  
Cucurbita Pepo ◽  
Soluble Fraction ◽  
Dry Weight ◽  
Species Sensitivity ◽  
Ipomoea Hederacea ◽  
Percentage Composition ◽  
Shoot Dry Weight ◽  
Giant Foxtail ◽  
Setaria Faberii ◽  
Plant Sensitivity

Absorption and metabolism of 14C-3-amino-2,5-dichlorobenzoic acid (amiben) by six plant species were investigated for correlation with species sensitivity. Plant sensitivity was determined from amiben concentrations required to give 50% reduction of radicle extension of germinating seedlings and shoot dry weight of 10-day-old plants (I50). The I50 values showed that soybean (Glycine max (L.) Merr., squash (Cucurbita pepo L.), and ivyleaf morningglory (Ipomoea hederacea (L.) Jacq.) were tolerant, cucumber (Cucumis sativus L.) was intermediate and giant foxtail (Setaria faberii Herrm.) and velvetleaf (Abutilon theophrasti Medic.) were susceptible. Neither the amount of amiben absorbed, the transport to shoots, the concentration of radioactivity soluble in methanol, nor the distribution of radioactivity among amiben, N-(3-carboxy-2,5-dichlorophenyl)-glucosylamine (hereinafter referred to as N-glucosyl amiben), and an unidentified amiben conjugate (amiben-X) was associated with species sensitivity in 11-day-old plants. In seedling tissues, neither the concentration of methanol-soluble nor methanol-insoluble radioactivity correlated with sensitivity. Highly significant correlations between the log percentage composition of amiben, amiben-X, and N-glucosyl amiben in the methanol-soluble fraction of seedlings and log I50 for radical elongation were obtained; the correlations were negative for amiben and amiben-X but positive for N-glucosyl amiben.

Penetration, Translocation, and Metabolism of Acifluorfen Following Pretreatment with Mefluidide

Weed Science ◽  
1984 ◽  
Vol 32 (5) ◽  
pp. 691-696 ◽  
Author(s):  
Barbara J. Hook ◽  
Scott Glenn
Keyword(s):  
Glycine Max ◽  
Abutilon Theophrasti ◽  
Ipomoea Hederacea ◽  
Nitrobenzoic Acid ◽  
Physiological Processes

The penetration, translocation, and metabolism of acifluorfen {5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoic acid} in ivyleaf morningglory [Ipomoea hederacea(L.) Jacq. ♯3IPOHE], velvetleaf (Abutilon theophrastiMedic. ♯ ABUTH), common cocklebur (Xanthium pensylvanicumWallr. ♯ XANPE), and soybean [Glycine max(L.) Merr.] were studied. An application to plants of 0.3 kg ai/ha mefluidide {N-[2,4-dimethyl-5-[[(trifluoromethyl)sulfonyl] amino] phenyl] acetamide} 0, 3, 5, or 7 days prior to treatment with14C-acifluorfen often altered one or more of the physiological processes under study. Pretreatment of ivyleaf morningglory with mefluidide 3, 5, or 7 days prior to application of14C-acifluorfen increased penetration of14C and decreased metabolism of acifluorfen, while translocation was unaffected. All mefluidide treatments increased penetration of14C-acifluorfen into velvetleaf, while the 3-, 5-, and 7-day pretreatments decreased acifluorfen metabolism. Penetration of acifluorfen into common cocklebur was unaffected by pretreatment with mefluidide. However, the 7-day mefluidide pretreatment of common cocklebur increased translocation of14C into the upper leaves and decreased acifluorfen metabolism. Penetration and translocation of the radiolabel from14C-acifluorfen in soybean was unaffected by pretreatment with mefluidide. Metabolism of acifluorfen by soybean was decreased by the 0-day mefluidide treatment but was unaffected by the 3-, 5-, or 7-day mefluidide pretreatment.

Uptake, Translocation, and Herbicidal Effect of Diphenamid

Weed Science ◽  
1970 ◽  
Vol 18 (6) ◽  
pp. 692-696 ◽  
Author(s):  
J. Deli ◽  
G. F. Warren
Keyword(s):  
Cell Division ◽  
Plant Growth ◽  
Avena Sativa ◽  
Shoot Growth ◽  
Inhibitory Effect ◽  
Root Tip ◽  
Metabolic Inhibitor ◽  
Ipomoea Hederacea ◽  
Root And Shoot Growth ◽  
The Difference

Root application ofN,N-dimethyl-2,2-diphenylacetamide (diphenamid) caused reduction of root and shoot growth of oats (Avena sativaL., var. Jaycee) seedlings. Shoot application did not affect plant growth, but studies with labeled diphenamid showed that diphenamid will enter also through the shoot. In ivyleaf morningglory (Ipomoea hederaceaL.), a considerable amount of label was translocated from the roots to the shoots, but not in oats seedlings. The difference in tolerance between these two species (oats susceptible, morningglory resistant) may lie in the ability of morningglory to translocate diphenamid out of the roots into the shoots faster than oats. The inhibitory effect of diphenamid was restricted to the site of uptake. Reduction in shoot growth of treated plants was the result of the limited root system and it was not a direct effect of diphenamid. Diphenamid was 10 times as toxic to oats as its metabolites. Oats seedlings inhibited by diphenamid for up to 5 days, and then placed in water recovered from the diphenamid caused inhibition. The resumed root growth appeared to be normal. The amount of uptake of14C-labeled sucrose by excised roots treated with 10−5M diphenamid was equal to that in untreated roots; however, more sugar was incorporated into the untreated roots than the treated roots. It appears that diphenamid is a reversible metabolic inhibitor; it inhibits cell division in the root tip perhaps by limiting utilization of substrates in the cells.

Influence of Planting Date on Growth of Ivyleaf Morningglory (Ipomoea hederacea) in Cotton (Gossypium hirsutum)

Weed Science ◽  
1986 ◽  
Vol 34 (6) ◽  
pp. 906-910 ◽  
Author(s):  
Paul E. Keeley ◽  
Robert J. Thullen ◽  
Charles H. Carter
Keyword(s):  
Gossypium Hirsutum ◽  
Planting Date ◽  
Seed Plant ◽  
Viable Seed ◽  
Ipomoea Hederacea ◽  
Total Crop ◽  
First Time

Ivyleaf morningglory [Ipomoea hederacea(L.) Jacq. # IPOHE], planted in 1984 and 1985 the first of each month from April through August, began emerging in cotton (Gossypium hirsutumL. ‘Acala SJ-2’) 1 week after planting. Morningglory, at a density of 1 plant/2 m of row, emerging in April and May became so competitive to cotton by harvest in September that the total crop was lost. June plantings, although less competitive than earlier plantings, still reduced yields by 11%. Later plantings did not reduce yields of cotton. Morningglory plantings that produced seed (April through July) began flowering within 7 weeks, and viable seed was collected for the first time 9 weeks after planting. Ivyleaf morningglory plants that emerged in April and May produced about 11 000 seed/plant by cotton harvest. This compared to 3000 and 93 seed/plant for morningglory that emerged in June and July, respectively. The earliest that morningglory might be expected to produce seed in cotton planted in early April would be late May to early June, and morningglory emerging as late as the first of July could produce some seed by cotton harvest.

scholarly journals Evidence for competition and cooperation among climbing plants

2010 ◽  
Vol 278 (1714) ◽  
pp. 1989-1996 ◽  
Author(s):  
Jay M. Biernaskie
Keyword(s):  
Inbred Line ◽  
Relative Efficiency ◽  
The Other ◽  
Ipomoea Hederacea ◽  
Common Mean ◽  
Climbing Plants ◽  
Competition And Cooperation ◽  
Below Ground ◽  
Mixed Groups ◽  
Sibling Groups

A plant's best strategy for acquiring resources may often depend on the identity of neighbours. Here, I ask whether plants adjust their strategy to local relatedness: individuals may cooperate (reduce competitiveness) with kin but compete relatively intensely with non-kin. In a greenhouse experiment with Ipomoea hederacea , neighbouring siblings from the same inbred line were relatively uniform in height; groups of mixed lines, however, were increasingly variable as their mean height increased. The reproductive yield of mixed and sibling groups was similar overall, but when adjusted to a common mean height and height inequality, the yield of mixed groups was significantly less. Where this difference in yield was most pronounced (among groups that varied most in height), mixed groups tended to allocate more mass to roots than comparable sibling groups, and overall, mixed groups produced significantly fewer seeds per unit mass of roots. These results suggest that, from the group perspective, non-kin may have wasted resources in below-ground competition at the expense of reproduction; kin groups, on the other hand, displayed the relative efficiency that is expected of reduced competitiveness.

Inbreeding depression and selfing rate of Ipomoea hederacea var. integriuscula (Convolvulaceae)

2005 ◽  
Vol 92 (11) ◽  
pp. 1871-1877 ◽  
Author(s):  
H. M. Hull-Sanders ◽  
M. D. Eubanks ◽  
D. E. Carr
Keyword(s):  
Inbreeding Depression ◽  
Selfing Rate ◽  
Ipomoea Hederacea
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