POLLINATION SYSTEMS OF SYMPATRIC IPOMOEA HEDERACEA AND I. PURPUREA AND THE SIGNIFICANCE OF INTERSPECIFIC POLLEN FLOW

1985 ◽  
Vol 72 (1) ◽  
pp. 32-43 ◽  
Author(s):  
Jon M. Stucky
Author(s):  
В.А. АГАФОНОВ ◽  
Е.В. РАЗУМОВА ◽  
Б.И. КУЗНЕЦОВ ◽  
В.В. НЕГРОБОВ ◽  
О.В. ПРОХОРОВА
Keyword(s):  

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.


1983 ◽  
Vol 122 (1) ◽  
pp. 147-151 ◽  
Author(s):  
Keith D. Waddington
Keyword(s):  

2021 ◽  
Vol 108 (4) ◽  
Author(s):  
Julieta Genini ◽  
Paulo R. Guimarães ◽  
Marlies Sazima ◽  
Ivan Sazima ◽  
Leonor Patrícia Cerdeira Morellato

Weed Science ◽  
1971 ◽  
Vol 19 (6) ◽  
pp. 701-705 ◽  
Author(s):  
R. J. Burr ◽  
G. F. Warren

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.


2020 ◽  
Vol 126 (5) ◽  
pp. iv-v
Author(s):  
Klaus Lunau ◽  
Sarah Gerten
Keyword(s):  

This article comments on: Zhe Chen, Yang Niu, Chang-Qiu Liu and Hang Sun, Red flowers differ in shades between pollination systems and across continents, Annals of Botany, Volume 126, Issue 5, 9 October 2020, Pages 837–848, https://doi.org/10.1093/aob/mcaa103


Evolution ◽  
2001 ◽  
Vol 55 (2) ◽  
pp. 260 ◽  
Author(s):  
Peter E. Smouse ◽  
Rodney J. Dyer ◽  
Robert D. Westfall ◽  
Victoria L. Sork
Keyword(s):  

1976 ◽  
Vol 54 (22) ◽  
pp. 2530-2535 ◽  
Author(s):  
Fred R. Ganders

Stigmatic pollen loads were analyzed from naturally pollinated pin and thrum form flowers of Amsinckia douglasiana and A. vernicosa var. furcata. Pin stigmas captured more total pollen than thrum stigmas. Pins experienced either net self-pollination or random pollination. Thrum stigmas experienced significant disassortative pollination. Comparing pollen loads from intact and emasculated thrum flowers of A. douglasiana indicated that self-pollination and geitonogamy were relatively unimportant in the pollination of the thrum form. The level of disassortative pollination of A. vernicosa var. furcata does not appear to be high enough to account for the level of disassortative mating observed by progeny testing, suggesting that this species may possess an incomplete stylar self-incompatibility system such as has been reported in A. grandiflora.


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