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Question : Which is correct about Viola ? |
| Answer» <html><body><p>Commonly called common pansy<br/>Bears <a href="https://interviewquestions.tuteehub.com/tag/two-714195" style="font-weight:bold;" target="_blank" title="Click to know more about TWO">TWO</a> types of flowers, chasmogamous and <a href="https://interviewquestions.tuteehub.com/tag/cleistogamous-7312094" style="font-weight:bold;" target="_blank" title="Click to know more about CLEISTOGAMOUS">CLEISTOGAMOUS</a><br/><a href="https://interviewquestions.tuteehub.com/tag/produce-1167752" style="font-weight:bold;" target="_blank" title="Click to know more about PRODUCE">PRODUCE</a> assured seed-set even in the absence of pollinators<br/>All of the above</p>Solution :`**` Some plants such as Viola (common pansy), Oxalis and Commelina produce two types of flowers-Chasmogamous flowers which are similar to flowers of other species with exposed anthers and stigma, and cleistogamous flowers which do not <a href="https://interviewquestions.tuteehub.com/tag/open-586655" style="font-weight:bold;" target="_blank" title="Click to know more about OPEN">OPEN</a> at all. <br/> `**` In such flowers, the anthers and stigma lie close to each other. When anther dehisce in the flower bud, pollen grains come in contact with stigma to effect <a href="https://interviewquestions.tuteehub.com/tag/pollination-1158325" style="font-weight:bold;" target="_blank" title="Click to know more about POLLINATION">POLLINATION</a>. <br/> `**` Cleistogamous flowers are invariable autogamous as there is no chance of cross-pollen landing on the stigma. <br/> `**` Cleistogamous flowers produce assured seed-set even in absence of pollinators.</body></html> | |