Description : Azolla increases soil fertility for – (1) maize cultivation (2) wheat cultivation (3) barley cultivation (4) rice cultivation
Last Answer : (4) rice cultivation Explanation: The nitrogen-fixing capability of Azolla has led to it being widely used as a biofertiliser for increasing the productivity of rice fields. When rice paddies ... can be inoculated with Azolla., which then quickly multiplies to cover the water, suppressing weeds.
Description : The smallest flowering plant is - (1) Wolffia (2) Lemma (3) Azolla (4) Ficus
Last Answer : (1) Wolffia Explanation: Wolffia is a genus of 9 to 11 species which include the smallest flowering plants on Earth. Commonly called watermeal or duckweed, these aquatic plants resemble specks of ... together in pairs or form floating mats with related plants, such as Lemna and Spirodela species.
Description : The second stage of hydrosere is occupied by plants like (a) Azolla (b) Typha (c) Salix (d) Vallisneria.
Last Answer : (d) Vallisneria.
Description : The biofertilizers are (a) Anabaena and Azolla (b) cow dung, manure and farmyard waste (c) quick growing crop ploughed under soil (d) none of these.
Last Answer : (a) Anabaena and Azolla
Description : Farmers have reported over 50% higher yields of rice by using which of the following biofertilizer? (a) Cyanobacteria (b) legume-Rhizobium symbiosis (c) Mycorrhiza (d) Azolla pinnata
Last Answer : (d) Azolla pinnata
Description : Which of the following fern is an excellent biofertilizer? (a) Marsilea (b) Pteridium (c) Azolla (d) Salvinia
Last Answer : (c) Azolla
Description : Which aquatic fern is used to increase the yield in paddy crop? (a) Azolla (b) Salvinia (c) Marsilea (d) Isoetes
Last Answer : (a) Azolla
Description : Which of the following is the pair of biofertilizers? (a) Azolla and BGA (b) Nostoc and legume (c) Rhizobium and grasses (d) Salmonella and E.coli
Last Answer : (a) Azolla and BGA
Description : Which one of the following plants are used as green manure in crop fields and in sandy soils? (a) Crotalaria juncea and Alhagi camelorum (b) Calotropis procera and Phyllanthus niruri (c) Saccharum munja and Lantana camara (d) Dichanthium annulatum and Azolla nilotica
Last Answer : (a) Crotalaria juncea and Alhagi camelorum
Description : A free living nitrogen-fixing cyanobacterium which can also form symbiotic association with the water fern Azolla is (a) Tolypothrix (b) Chlorella (c) Nostoc (d) Anabaena.
Last Answer : (d) Anabaena.
Description : A nitrogen-fixing microbe associated with Azolla in rice fields is (a) Spirulina (b) Anabaena (c) Frankia (d) Tolypothrix.
Last Answer : (b) Anabaena
Description : A water-fern, which is used as a green manure in rice fields, is (a) Salvinia (b) Mucor (c) Aspergillus (d) Azolla
Last Answer : (d) Azolla
Description : Which aquatic fern performs nitrogen fixation? (a) Azolla (b) Nostoc (c) Salvia (d) Salvinia
Description : Which of the following is used as Biofertilizer? a) Rhizobium b) Blue-green algae c) Azolla d) All of these
Last Answer : d) All of these
Description : Which of the following organisms is used as a biopesticide ? (l) Azolla (2) Anabaena (3) Rhizobium (4) Trichoderma
Last Answer : (4) Trichoderma
Description : Azolla pinnata is a). a fern b). an algae c). a gymnosperm d). an angiosperm
Last Answer : a). a fern
Description : Besides providing N Azolla is used for weed control in a). Wheat b). Rice c). Castor d). Linseed
Last Answer : b). Rice
Description : A nitrogen-fixing microbe associated with Azolla in rice fields is (1) Tolypothrix (2) Spirulina (3) Anabaena (4) Frankia
Last Answer : (3) Anabaena
Description : Azolla increases soil fertility for (1) maize cultivation (2) wheat cultivation (3) barley cultivation (4) rice cultivation
Last Answer : rice cultivation
Description : The smallest flowering plant is : (1) Wolffia (2) Lemma (3) Azolla (4) Ficus
Last Answer : Wolffia
Description : Where can I purchase edible herbs, seeds, whatnot?
Last Answer : That should be *sells these kind of things.
Description : Seed capital assistance ___________. A. a long-term assistance. B. initial assistance C. a help for the purchase of seeds. D. a short-term assistance.
Last Answer : B. initial assistance
Description : Sugarcane plants are usually propagated by vegetative means because - (1) they do not produce seeds (2) it is possible to maintain genetic quality (3) the incidence of disease may be reduced
Last Answer : (1) they do not produce seeds Explanation: Vegetative reproduction is a form of asexual reproduction in plants. It is a process by which new individuals arise without production ... propagation include cutting, vegetative apomixis, layering, division, budding, grafting and tissue culture.
Description : India’s wheat yield revolution in the 1960s was possible primarily due to (a) hybrid seeds (b) increased chlorophyll content (c) mutations resulting in plant height reduction (d) quantitative trait mutations.
Last Answer : (d) quantitative trait mutations.
Description : Sugarcane plants are usually propagated by vegetative means because (1) they do not produce seeds (2) it is possible to maintain genetic quality (3) the incidence of disease may be reduced
Last Answer : they do not produce seeds