30 Questions
What did Alphonse de Candolle attach great importance to in determining the place of origin of cultivated plants?
Presence of wild relatives
What did Alphonse de Candolle classify the plants of economic importance into?
Six classes
Who was Alphonse de Candolle?
Swiss botanist
What did Alphonse de Candolle attempt to solve regarding cultivated plants?
Mystery about the ancestral form, region of domestication, and history
What type of plants did Alphonse de Candolle specifically focus on in his classifications?
Plants of economic importance
What did Alphonse de Candolle's work involve in relation to cultivated plants?
Classifying plants and investigating their history
What is the primitive form of food that is still consumed by the toothless, both old and young?
Gruel or porridge
What is a rather recent innovation in the context of food mentioned in the text?
Making or leavened bread
Which type of flour is widely consumed by those fasting during the nine days of navratras?
Buckwheat (kuttu flour)
What are the attributes contributing to the prominence of cereals as food plants?
Great adaptability, ease of handling, good nutritive value
What percentage of protein do cereals contain, according to the text?
7-10%
What is the main reason for the prominence of cereals as food plants?
Good nutritive value
What was the global production of ramie in 2012, and which country accounted for the largest share?
The world production of ramie in 2012 was 154,435 tonnes, of which China accounted for 150,000 tonnes, with a share of 96.8%.
Explain the potential uses of ramie beyond the textile industry, as mentioned in the passage.
Apart from its usefulness in the textile industry, ramie is said to be an excellent source of paperstock for the building industry, a substitute for rabbit fur in felt hats, a gum equivalent to gum arabic, and the tops and leaves provide a source of poultry and stock feed rich in vitamins.
According to the passage, what is the primary challenge in exploiting ramie commercially?
Despite the claims of ramie's potential uses, the passage states that it remains to be seen whether the plant can really be exploited commercially, as the extraction process involves many difficulties.
Describe the morphology of the ramie plant, as mentioned in the passage.
The ramie plant consists of a number of tall, slender stems (0.9-2.44 m), originating from a perennial rootstock.
What is the significance of the statement "It has been said that for long cotton will be replaced by ramie"?
The statement suggests that ramie may potentially replace cotton as a primary textile fiber in the future, due to its perceived advantages or desirable properties.
Based on the information provided, which countries or regions are mentioned as minor producers of ramie?
The other minor producing nations mentioned are India, Thailand, Malaysia, Vietnam, Queensland (Australia), Mauritius, the Cameroons, the West Indies, Colombia, and southern parts of the United States and Europe.
What is the distinguishing characteristic between American upland short-staple cotton and American upland long-staple cotton?
The staple length, with short-staple ranging from 16 to 27 mm and long-staple ranging from 28 to 38 mm.
Describe the typical morphological features of G. hirsutum plants.
Small shrubs or trees with few vegetative branches, large cordate hairy leaves that are 3-5 lobed, white or pale yellow flowers that turn pink/red on the second day, and large rounded green smooth bolls with few oil glands.
How does the appearance of G. hirsutum bolls differ from that of G. barbadense?
Unlike G. barbadense, the bolls of G. hirsutum are usually green and smooth with few oil glands.
What is the significance of the 'fuzzy white coating' mentioned in the passage?
It refers to the seed coat of G. hirsutum, which is covered overall with a fuzzy white coating.
Based on the information provided, in which regions is upland cotton (G. hirsutum) primarily cultivated?
Apart from the cotton belt of the southern United States, upland cotton is cultivated in large parts of China, Turkey, Greece, Uzbekistan, Pakistan and Australia.
Describe the distinguishing floral characteristic of G. hirsutum compared to an unnamed species.
The flowers of G. hirsutum are usually without a purple spot at the base, unlike the unnamed species being compared.
What is the primary reason for the diminished use of natural dyes in modern times?
The widespread availability and lower cost of synthetic dyes.
Explain the role of plants in purifying the atmosphere, as described in the passage.
Plants assimilate carbon dioxide and release oxygen through photosynthesis, helping to purify the air.
How do trees in regions with low rainfall contribute to improving the climate, according to the passage?
They absorb water from deep underground and release it into the atmosphere.
Describe the emotional significance of flowers, as stated in the passage. Provide an example.
Flowers can convey varying emotions like love, worship, and sorrow, often more effectively than words. For example, giving flowers can express love.
According to the passage, how have florists, landscape gardeners, and nurserymen contributed to making our environment more pleasing?
Through planned planting and their efforts in gardening and landscaping.
Explain the significance of plants in the fields of art and poetry, as described in the passage.
The detail and beauty of plants provide inspiration for artists and poets.
Test your knowledge on the diminishing use of natural dyes in various industries such as textiles, leather, paints, and food coloring. Explore the reasons behind the decline in the use of natural dyes and their impact on different sectors.
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