In some other species, the anther and stigma are placed at different position. Describe any two devices in a flowering plant which prevent both autogamy and geitonogamy. Flowering plant have developed many devices to discourage self-pollination to encourage cross-pollination. In some species, pollen release and stigma recepitivity are not synchronized. List three devices, which flowering plant have developed to discourage self pollination? This is known as outbreeding. This process is known as budding. Pink flower = female flower; Blue flower = male flower; Bicolored flower = bisexual/hermaphrodite flower. The first two plants show the dioecious condition in which male and female flowers are borne on separate plants while the fourth plant exhibits monoecy, where male and female flowers are borne on the same plant. Continued self pollination lead to inbreeding depression. Because the majority of flowering plants produce hermaphrodite flowers and are likely to come in contact with the stigma of the same flower. The continued self-pollination leads to chances of inbreeding depression. continued self pollination leads to inbreeding depression list three devices which flowering plants have developed to discourage self pollination - - TopperLearning.com | bhl4jvqll Self-pollination is common and more likely to happen in the case of hermaphrodite flowers but a successive series of self-pollination affects negatively and causes inbreeding depression. asked Dec 7, 2018 in Biology by kajalk (77.6k points) cbse; class-12; 0 votes. 1. Thus plants are adapted to promote cross-pollination. Three inbreeding techniques in flowering plant are :- Emasculation- It is technique that involves removal of anthers from the flower buds before it splits apart in bisexual flowers. Continuous self-pollination results in inbreeding depression. 1 answer. This also results in homozygous genes. Plant species were classified pertaining to the nourishment of organisms into three categories: (i) autotroph, plant that makes its own food, (ii) hemiparasite and parasite, partial or total parasite that obtains its nourishment from a living plant and (iii) insectivore, plant that obtains partially its … This is done by enclosing the emasculated flowers in muslin, oil, paper or polythene bag. Explain any two devices by which autogamy is prevented in flowering plants. explain any three inbreeding devices in flowering plant. In order to avoid self-pollination,cross-pollination is encouraged in plants as follows : a. Make a list of any three outbreeding devices that flowering plants have developed and explain how they help to encourage cross-pollination. The main aim is to prevent self- pollination and is done with the help of forceps. Concept: Pre-fertilisation - Structures and Events - Pollination. 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