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Anatomy and surface ultrastructure of the galls induced on oak leaves by the insects – Neuroterus numismalis (Ol.) and Cynips (Diplolepis) quercusfolii L. – were investigated using a scanning electron microscope (SEM) and a light microscope (LM). The observations in SEM and in LM enabled a detailed description of these galls and comparison of their structure with that of the typical oak leaf. In N...
The reproductive development of tomatillo (husk tomato) was investigated in the conditions of central Poland. The developmental cycle of tomatillo in Poland lasts 20-23 weeks, including 6 weeks in a greenhouse or a tunnel and is longer than in Mexico (15 weeks). The plant grows well in Poland and is fruiting aboundantly.The cv. Rendidora B1 was early fruiting and sensitive to drought so it should...
In a commerical orchard of 18-year-old trees, 1250 fruits were chosen for observation. The majority of them abscised during the first weeks after anthesis. Afterwards, the abscission gradually descreased, however, in the meantime three additional waves of more intensive shedding occurred which were best visible when the Relative Abscission Rate (RAR) was calculated. The peaks in the RAR curve were...
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