EFFECT OF TEMPERATURE AND LIGHT ON SEED GERMINATION OF TWO ECOTYPES OF <i>PORTULACA OLERACEA</i> L.

SUMMARY The effect of various temperature and light conditions on the germination of freshly harvetesd and 1‐year‐old seeds of obovate leaf and narrowly obovate leaf ecotypes of Portulaca oleracea L. is reported. These plants are common weeds of moist cultivated fields in the Upper Gangetic Plain. F... View More