BACKGROUND AND AIMS Purple nutsedge (Cyperus rotundus L.) is a major weed of upland crops and vegetables. Recently, a flood-tolerant ecotype evolved as a serious weed in lowland rice. This study attempted to establish the putative growth and physiological features that led to this shift in adaptation. METHODOLOGY Tubers of upland C. rotundus (ULCR) and lowland C. rotundus (LLCR) ecotypes were...

Abstrak. Ekstrak umbi teki terbukti mengandung senyawa yang berpotensi alelopati karena mampu menghambat pertumbuhan gulma bayam duri. Pelarut merupakan faktor penting dalam proses ekstraksi senyawa. digunakan adalah metanol bersifat polar, dapat menarik polar dan nonpolar. Penelitian ini bertujuan untuk mengidentifikasi aktivitas ekstrak pada beberapa konsentrasi terhadap dilakukan di Laborato...

The study was conducted to understand the influence of herbicide on changes in physiology and biochemical properties purple nutsedge weed (Cyperus rotundus L.). Laboratory pot culture were at Department Agronomy, Tamil Nadu Agricultural University, Coimbatore during 2020-21. Glyphosate tested with different concentrations (500, 600, 700, 800, 900 1000 ppm) various soaking duration (6, 12, 24 48...

Field studies were conducted in 2007 and 2008 near Nyssa, OR, and Pasco and Paterson, WA to evaluate yellow nutsedge and broadleaf weed control and potato tolerance to imazosulfuron. No injury symptoms from imazosulfuron were evident on potato at Nyssa, whereas in Washington, imazosulfuron caused some chlorosis of potato foliage ranging from 6 to 15% and , 4% at 6 and 15 d after POST applicatio...