Author(s): T. Sarkar and S. K. Sarkar

Abstract: The experiment was carried out on 11 guava genotypes, with various sorts of crosses used to decipher the reproductive biology, including intervarietal compatibility. Pollen grains of various types germinated in vitro, according to microscopic analysis. The 10 per cent sugar concentration resulted in the highest pollen germination in all the 11 guava genotypes. Pollen grain germination decreased as the sucrose concentration in the solution increased, except in the Lucknow-49 variety, where pollen grain germination increased to 1.79 per cent by increasing the sucrose percentage from 10 to 15% and then decreased as the sucrose concentration was increased further. The maximum fruit set (87.72%) was recorded under open pollination, Self pollination can also result in fruit set, however cross pollination results in a larger fruit set and yield. The intervarietal crosses revealed that the incompatibility between varieties is relatively low. The hybrid between Baruipur and Khaja resulted in enormous, high-quality fruits.

DOI: 10.22271/09746315.2022.v18.i1.1538

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