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The duration of the flowering period and the fraction of open flowers over time were defined as functions of growing degree-days for 5 almond cultivar...
Read more7 cv. of perennial ryegrass, which originated from countries having contrasting winter climates and with a range of heading dates, were grown in simul...
Read moreSeed input, changes in the seed bank and seedling recruitment of Onopordum were monitored over 1 year at three contrasting sites (pasture, oat crop an...
Read morePopulations of Dactylis glomerata were sampled along 2 transects in S. France both of which began near the Mediterranean coast, one going 80 km N. to ...
Read moreThe survival of cocksfoot (D. glomerata) swards and their changes in carbohydrate content were investigated on loamy clay soil in Corsica, France. Fiv...
Read moreH. rufa was the only herbaceous plant to prosper under annual burning in derived savana in N.W. Costa Rica. Under favourable conditions it could be &g...
Read moreA growing number of restoration projects require large amounts of seeds. As harvesting natural populations cannot cover the demand, wild plants are of...
Read moreKnowledge of the regulatory effects of the crop canopy on weed seed germination is necessary to understand fully the behaviour of weed seed banks duri...
Read moreYear-to-year variation in the risk of spring frost damage during the 20th century was examined with reference to variation in the date when a fixed th...
Read moreThe effects of defoliation of the malvaceous tropical weed Sida acuta by an introduced biological control agent, the chrysomelid Calligrapha pantherin...
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