Why auto pollination Cannot happen in Sunflower?
Sunflowers require a pollinator (bees) to move pollen from one flower to another. Unlike corn and other crops, very little pollination is accomplished by wind. Sunflower pollen is heavy and stick and most of it ends up on the leaves of the plant during windy days.
Is Cotton wind pollinated?
Cotton is self-pollinating and does not need pollination to set a crop. The flowers open as white blooms in the morning with pollination occurring within four hours, and fertilization within the flower occurring 12 to 24 hours later.
What type of pollination occurs in Sunflower?
Sunflower: Sunflower is pollinated by insects i.e. entomophily so the modifications seen in it are to attract insects such as large and bright colored flowers that insects can easily see.
Is safflower self pollinated or cross pollinated?
Safflower is basically self-pollinated but bees or other insects are generally necessary for optimum fertilization and maximum yield. If anther dehiscence occurs before the style elongates, the stigma pushes through the mass of pollen, becomes coated with pollen and gets self-fertilized.
What is the difference between Chasmogamous and Cleistogamous?
Chasmogamous flowers have their anthers and stigma exposed, whereas cleistogamous flowers are closed and do not open at all. E.g. Oxalis, Viola and Commelina produce both cleistogamous and chasmogamous flowers.
Is sugarcane wind pollinated?
Sugarcane is a cross-pollinating species although selfing occurs at low levels. Although sugarcane flowers often have reduced male fertility they are rarely male sterile. Sugarcane pollen is very small and wind dispersed.
How is sorghum pollinated?
Sorghum is primarily self-pollinated, meaning that a sorghum plant will accept pollen from its own flowers. Sorghum can also accept pollen from other sorghum plants (cross-pollination) by means of wind or insect transfer (note the bee on the sorghum head in Fig. 3).
Which type of pollination occurs in Lotus?
The lotus flower is bowl shaped and nectarless with an obvious cantharophily syndrome (i.e. beetle pollinated), having a large chamber enclosed by petals and a large number of stamens, and releasing odours.
What type of pollination occurs in maize?
Maize is predominantly cross pollinated. Wind pollination (Anemophily) is the general rule. Pollination by insects also takes place to certain extent.
Do pollinators like safflower?
Bees Really Connect with Safflowers! Honey bees love safflowers, says Extension apiculturist Eric Mussen of the UC Davis Department of Entomology and Nematology. That they do. Safflower fields literally buzz with bees foraging on the blossoms.
Is groundnut cross pollinated?
About 1.0 to 3.9% cross-pollination has been reported to take place naturally. Several bee species have been found to be the pollinators in out-crossing of groundnuts. Fertilization is completed within 6 hours of pollination. flowers withering simultaneously (5 to 6 hours).
What is cleistogamy pollination?
Cleistogamy is a phenomenon where plants show self-pollination. The word cleistogamy means ‘closed marriage’. The flowers which show cleistogamy are known as cleistogamous flowers. It is well known in the grass family, such as peas, peanuts and pansy.
What is chasmogamous and example?
Chasmogamous flowers belong to angiosperms. Some of the chasmogamous flowers include sunflower, Hibiscus, Viola, beans, peas and commelina flowers. Chasmogamy is a type of pollination that occurs only in chasmogamous flowers.
Which of the following plants produce S chasmogamous and cleistogamous flowers?
So, the correct answer is ‘Commelina’.
Is sorghum a self-pollinated or cross-pollinated?
Sorghum is normally self-pollinated but some florets are protogyny resulting in cross pollination averaging about 6%. So, it is classified as often cross- pollinated. The amount of natural cross pollination varies from 0.6 to 50 per cent in different varieties and places.