Plant Breeding With the addition of pollen may fail to germinate on the stigma, there are several mechanisms responsible for self-incompatibility in higher plants. Which one of the following is/are? a) A male gamete that enters the embryo sac may fail to unite with the egg cell. b) Pollen tube growth in the style may be inhibited to the extent that pollen fails to reach the ovary. c) Pollen tubes of sufficient length may fail to penetrate the ovule. d) All of the above Refer: “Objective PLANT SCIENCE At a Glance” Deepak Kumar Verma, Bavita Asthir, Dinesh Narayan Bharwaj, Santanu Swain and S. S. Verma, (2014) Scientific Publishers India. ISBN: 978-81-7233-888-6. scientificpub/productdetail.php?bid=592&bcid=80 https://researchgate.net/publication/259268338_Objective_PLANT_SCIENCE_At_a_Glance
Posted on: Sat, 23 Aug 2014 09:28:47 +0000
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