Sanitary state of yellow lupine (Lupinus luteus L.) in different agricultural conditions
2012
Tomasz P. Kurowski | Tadeusz Bieniaszewski | Edyta Jaźwińska
In 1999-2001 the effect of sowing method and plant density on the sanitary state of three cultivars of yellow lupine protected with fungicides against diseases was investigated. In spring of 2000 the seedlings on the experimental fields generally withered, which was most likely caused by the applied herbicide, however in 1999 and 2001 seedling black leg (complex of fungi) was reported. The plants germinating from the seeds sown in points were clearly less attacked by pathogens evoking seedling black leg than those sown in rows. The most serious disease of yellow lupine was antracnose (Colletotrichum gloeosporioides). It occurred in all experimental years and its intensity increased during vegetation period. Cultivars of lupine used to the experiment were attacked by Colletotrichum gloeosporioides in a different degree, however, the injury index was mainly determined by weather conditions and the lupine development phase. The applied fungicides significantly limited the development of lupine antracnose. The effect of sowing method and varied plant density on disease intensity was varied.
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