scholarly journals Rzadkie gatunki flory kalcyfilnej w zbiorowiskach segetalnych na terenie województwa lubelskiego

2014 ◽  
Vol 69 (1) ◽  
pp. 11-22
Author(s):  
MAŁGORZATA HALINIARZ ◽  
JAN KAPELUSZNY

Celem badań była dokumentacja stanowisk rzadkich gatunków kalcyfilnej flory segetalnej na terenie woj. lubelskiego. W pracy przedstawiono wyniki badań terenowych prowadzonych w latach 2005–2010 na polach zlokalizowanych na glebach rędzinowych. Każdą agrocenozę, w której stwierdzono występowanie gatunku uznanego za rzadki i zagrożony wyginięciem, traktowano jako odrębne stanowisko. Z grupy rzadkich taksonów kalcyfilnych w zbiorowiskach segetalnych na terenie woj. lubelskiego stwierdzono występowanie: Adonis aestivalis, Anagallis foemina, Anchusa arvensis, Anthemis tinctoria, Bromus secalinus, Camelina microcarpa, Cerinthe minor, Chaenorrhinum minus, Conringia orientalis, Consolida regalis, Erysimum cheiranthoides, Euphorbia exigua, Fumaria vaillantii, Lathyrus tuberosus, Melampyrum arvense, Melandrium noctiflorum, Muscari comosum, Neslia paniculata, Odontites verna, Salvia verticillata, Sherardia arvensis, Silene dichotoma, Stachys annua, Thlaspi perfoliatum, Valerianella dentata, Valerianella rimosa, Veronica agrestis, Veronica polita. Gatunki te zarejestrowano w 54 miejscowościach.

Weed Science ◽  
1984 ◽  
Vol 32 (6) ◽  
pp. 751-756 ◽  
Author(s):  
David R. Pike ◽  
Jimmy F. Stritzke

A study was conducted at two locations to evaluate the effects of cheat (Bromus secalinusL. ♯3BROSE) competition on four seeding rates (4.5, 9.0, 13.5, and 22 kg/ha) of alfalfa (Medicago sativaL. ‘Riley’). Three stages of first harvest (early bud, early bloom, and late bloom) were imposed on fall-planted alfalfa, with and without cheat overseeding, to determine the effects of harvest stage on alfalfa yield and quality. Cheat infestations significantly decreased alfalfa production and forage quality. Increasing the seeding rate of alfalfa only partially offset these losses. Harvesting early helped minimize the effect of cheat competition. First-harvest protein yield of forage was significantly decreased by, cheat overseeding. Total protein yield at first harvest was not affected by cutting stage but did increase with the two higher seeding rates of alfalfa.


1997 ◽  
Vol 11 (1) ◽  
pp. 30-34
Author(s):  
Jeffrey A. Koscelny ◽  
Thomas F. Peeper

Seven field experiments were conducted in Oklahoma to compare efficacy and wheat response to currently registered cheat suppression or control herbicide treatments. Chlorsulfuron + metsulfuron premix (5:1 w/w) at 26 g ai/ha applied PRE controlled cheat 20 to 61%, increased wheat grain yields at two of seven locations, and decreased dockage due to cheat at five of seven locations. Chlorsulfuron + metsulfuron at 21 g/ha tank-mixed with metribuzin at 210 g/ha, applied early fall POST, controlled cheat 36 to 98% and increased wheat yield at four of seven locations. Metribuzin applied POST in the fall at 420 g/ha controlled cheat 56 to 98% and increased wheat yields at five of seven locations. Both POST treatments decreased dockage at all locations.


1991 ◽  
Vol 5 (4) ◽  
pp. 707-712 ◽  
Author(s):  
Jeffrey A. Koscelny ◽  
Thomas F. Peeper ◽  
John B. Solie ◽  
Stanley G. Solomon

Field experiments were conducted in Oklahoma to determine the effects of winter wheat seeding date and cheat infestation level on cultural cheat control obtained by increasing winter wheat seeding rates and decreasing row spacing. Seeding rate and row spacing interactions influenced cheat density, biomass, or seed in harvested wheat (dockage) at two of three locations. Suppressive effects on cheat of increasing wheat seeding rates and reduced row spacings were greater in wheat seeded in September than later. At two other locations, increasing seeding rate from 67 to 101 kg ha–1or reducing row spacings from 22.5 to 15 cm increased winter wheat yield over a range of cheat infestation levels.


1990 ◽  
Vol 4 (2) ◽  
pp. 306-313 ◽  
Author(s):  
Kenneth L. Ferreira ◽  
Thomas F. Peeper ◽  
Francis M. Epplin

Field experiments were conducted to determine the influence of winter wheat seeding date and forage removal on the efficacy of cheat control herbicides, forage and grain yields, and net returns to land, overhead, risk, and management for the various cheat control strategies. Economic analysis showed that net returns were higher when wheat was seeded during the traditional seeding period (October) than when either seeded early (September) for increased forage production or delayed (November) for cultural cheat control. Some herbicides were economically beneficial at two of three locations where the initial cheat population exceeded 170 plants/m2.


Weed Science ◽  
1985 ◽  
Vol 33 (2) ◽  
pp. 250-252
Author(s):  
Phillip W. Stahlman

The methyl ester of diclofop {2-[4-(2,4-dichlorophenoxy)phenoxy] propanoic acid} mixed with soil at 1, 2, and 3 ppmw reduced the growth ofBromusspecies in the greenhouse as follows: downy brome (Bromus tectorumL. ♯ BROTE) more than Japanese brome (Bromus japonicusThunb. ex Murr. ♯ BROJA) more than cheat (Bromus secalinusL. ♯ BROSE). The decrease in herbicide effect (decay) over time was described better using a second-order equation than a first-order equation. Plant response-herbicide dose relationships were described best with a cubic polynomial equation.


1996 ◽  
Vol 41 (4) ◽  
pp. 1187-1189 ◽  
Author(s):  
Zhen-Huan Lei ◽  
Shoji Yahara ◽  
Toshihiro Nohara ◽  
Tai-Bao Shan ◽  
Jin-Zhe Xiong

Planta Medica ◽  
2001 ◽  
Vol 67 (4) ◽  
pp. 369-370 ◽  
Author(s):  
Zhen-Huan Lei ◽  
Akihiko Kuniyasu ◽  
Bao-Shin Tai ◽  
Hitoshi Nakayama ◽  
Toshihiro Nohara

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