The plant is self-sterile hence cross-pollination occurs. Since Q had stigma exposed to receive pollen grains from other plants. P was covered hence pollen grains from the other plant could not land on the stigma preventing cross-pollination, hence no fertilization.
johnmulu answered the question on May 9, 2017 at 07:02
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Date posted: May 9, 2017. Answers (1)
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Date posted: May 9, 2017. Answers (1)
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Date posted: May 9, 2017. Answers (1)
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Date posted: May 9, 2017. Answers (1)
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Date posted: May 9, 2017. Answers (1)
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Date posted: May 9, 2017. Answers (1)
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Date posted: May 9, 2017. Answers (1)
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Date posted: May 9, 2017. Answers (1)
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Date posted: May 9, 2017. Answers (1)
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Date posted: May 9, 2017. Answers (1)
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Date posted: May 9, 2017. Answers (1)
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Date posted: May 8, 2017. Answers (1)
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Date posted: May 8, 2017. Answers (1)
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Date posted: May 8, 2017. Answers (1)