(MAY-2010) Answer: Tapetum. Pollinating agents were not mentioned. Match the following: (MAY-2010) Answer: Question 4. Plants with imperfect flowers can be easily bred for color, to increase food yields and build resilience, or to breed out diseases. Books. An external agent is required for this. 5.Mention the pollinating agent of an inflorescence of small dull coloured flowers with well exposed stamens and large feathery stigma. Cross-pollination requires pollinating agents such as water, wind, or animals, and increases genetic diversity. They cannot reach the stigma by themselves. Animals are attracted to flowers by ... As mentioned earlier, following compatible pollination, the pollen grain germinates on … Flowering, Floral Biology and Pollination in Coconut Flowering: In a bearing palm, every leaf axil can produce a Spadix or infloresence which under normal conditions various from 12 to 15 annually. Some did not mention traits of the PA morph at all (Atkinson and Upson, 2006; Ohba, 2006), while others considered the PA inflorescence to be a male inflorescence resulting from the abortion of female flower clusters (Lu et al., 1999; Li et al., 2005) or a compound structure of … Physics. a) catkin. : :The inflorescence develops within a strong, tough, pointed toubje sheath called spathe, which after full development splits from top to bottom and releases […] Give any one characteristic of pollen grains produced by such flowers. Bees, ... inflorescence to make them conspicuous. Name the pollinating agents fo flowers like maize and wheat. Because imperfect flowers are either male or female, they breed by cross-pollinating. Microsporangium is generally surrounded by four wall layers. 1.An inflorescence in which flowers arise from different point but reach at same point is known as. d) forming large number of fruits ... Name Email * Message * Thanks for visiting this site.Enjoy Biology ADVERTISEMENTS: Read this article to learn about the pollination in plants: self pollination and cross pollination with respective advantages and disadvantages! ANIMAL POLLINATING AGENTS- Majority of flowering plants use a range of animals as pollinating agents. In mustard raceme inflorescence is present here, the flowers are borne in acropetal order. Pollen grains are immobile. Cross-pollination occurs when pollen is transferred from one flower to another flower on the same plant, or another plant. He made no mention of bringing in pollinators to the crop. Give any two favourable features of such a flower. [Delhi 2009] Ans. Copy the picture given above and mark the following: The transfer of pollen grains from the anther to the stigma is called pollination. b) spadix ... attracting insects for cross pollination. When the pollen of the flower is transferred to the stigma of the same flower, it is called self-pollination. There are basically two types of pollination- Biotic and Abiotic.Biotic Pollination is through the insects, some birds and animals, etc. Give any one characteristic of … Bakhtadze (1932) stated that bees are the chief pollinating agents of tea, but that there were not enough bees present in his area to effect complete pollination of all the flowers. Imperfect flowers, which have only one gender of sex organ, are the most common among angiosperms. Question 3. It can […] Give any two favourable features of such a flower. Name the layer which nourishes developing pollen grains. NCERT DC Pandey Sunil Batra HC Verma Pradeep Errorless. Mention the pollinating agent of an inflorescence of small dull-coloured flowers with well-exposed stamens and large feathery stigma. Name the pollinating agents fo flowers like maize and wheat.

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