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Cytological investigations of hybrid plants of nicotiana alata and nicotiana debney obtained by in vitro pollination of ovules



Cytological investigations of hybrid plants of nicotiana alata and nicotiana debney obtained by in vitro pollination of ovules



Bulletin de la Societe des Amis des Sciences et des Lettres de Poznan Serie D Sciences Biologiques 21: 79-84



The development of male and female gametophytes were studied in hybrid plants of N. alata .times. N. debneyi (2n = 33). Numerous meiotic abnormalities were observed during the early stages of megasporogenesis and not one fully formed embryo sac was found. In anthers meiosis was also abnormal and 2-celled pollen grains never developed. Microspores were of various size and shape; they degenerated early.

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