Incidencia de la polinizacion anemofila y polinizacion manual suplementaria sobre el tamano del del fruto de kiwi.
1993
Martin P Rodrigo Hernan
Different sources of pollen were used in supplementary hand-pollination of kiwi fruit at Quinta of Tilcoco, VI region, to evaluate: a) the effect of application of imported pollen and a mixture of collected pollen, both with and without talcum, b) pollen quantity and in vitro germination at different maturation periods (3; 6 and 26 hours after obtaining anthers) and, c) The release time of pollen and the effect of the wind pollination on fruit size. The results indicate that with hand-pollination it is possible to increase fruit size by up to 18%. The addition of talcum as a carrier produces a detrimental effect on pollination. Both Matua and Tomuri pollen collected from flowers in "popcorn" stage or first day-flowers maintain their germination after 26 hours of maturation at ambient temperature, with values close to 35%. On the contrary, the imported pollen had a tendency to decrease its germination by about 15% after 26 hours. Imported pollen is more abundant than collected pollen after 3 hours of maturation, equalling the other sources at 6 and 26 hours. The anthers obtained from flowers on the first day of anthesis release a greater quantity of viable pollen than the anthers from the floral white buds. The pollen suspended in the air is collected in greater quantity between 1 p.m and 5 p.m. Wind pollination was responsible for 46% of fruit weight and for 23% of the set seeds.
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