Q. The notice is papaya is tropical America
Q. The yellow pigment in papaya is caricaxanthin
Q. Papaya is the richest source of vitamin A next to mango it contains 2020 IU/ 100 g fruit
Q. King of temperate fruit is – Apple
Q. Family of apple is Rosaceae
Q. Mother of all delicious group of cultivars is – red delicious
Q. The king of arid fruit is ber
Q. The commercial propagation method off grape is – hard wood cutting
Q. In India the black soil is mostly fond in – Maharashtra
Q. Red soil is mostly found in – Tamilnadu
Q. The soil which is most suitable for most crops is – sandy loam
Q. Red colour in the red soils is due to presence of various oxides of irons
Q. The vertical section of the soil showing the various layers from the surface to the unaffected parent material is known as – soil profile .
Q. The arrangement of soil particles and their aggregate into certain defined is called – soil structure
Q. Particle density of soil is also known as – true density
Q. Generally the particles density of normal soil is – 2.65 gram/cm3
Q. The bulk density of normal soil is – 1.33 g/cm 3
Q. The formula of porosity of soil is – porosity =100-(bulk density / Particle density )
Q. The certain exchange capacity (CEC) of montmorillonite is – 60-100 me / 100 gm
Q. The first soil classification system was developed by – Russian scientist Dokuchaev (1880)
Q. The U.S classification system the soil orders are – 10
Q. Formula of bulk density is= wt. of soil / volume of solids and pores
Q. Law of minimum was given by – Vn Liebig (1840)
Q. Top most mineral horizon is – A horizon
Q. exchangeable sodium % age is also known as soluble % age
Q. The term pH was introduced by Sorensen (1909)
Q. Energy exchange elements are H & O
Q. K & Na is determined by Flame Photometer
Q. Micro nutrient is also known as – trace element , Oligo -element or spurned elements
Q. Crop logging technique was given by – H. F. Clements
Q. Metal nutrients are – K, fe, Ca, Mg, Mn, Zn, Cu.
Q. Highly mobile nutrients are – N,P,K.
Q. Criteria of essentiality was proposed by Arnon & Stout (1939)
Q. The term fictional nutrient was proposed by – Nicholas (1961)
Q. Moderate mobile nutrient is Zn
Q. FYM contains – 0.5% N , 0.2 % P2O5 & 0.5 % K2O
Q. The P is available at 6-7 pH
Q. Bio fertilizers are – Rhizobium , Azotobacter, Azospirillum , PSB, VAM,BGA, etc.
Q. Approx. 20 gram of rhizobium culture is required to treat one kg seed
Q. One packet of rhizobium culture contains 20 gram of rhizobium culture
Q. Azotobacter is used for – Rice , cotton , s.cane
Q. Azospirillum bio fertilizer used for Sorghum
Q. The cytoplasm and nucleus combinedly called – protoplasm
Q. Cell theory was proposed by M.J. Schleden and Theodo Schwann
Q. The term Lysosomes was first used by Dave in 1955
Q. The main function of Golgi bodies are – packaging of food materials such as protein , lipids etc.
Q. The function of ribosomes are – protein synthesis
Q. The term mitochondria was given by – C Benda (1897)
Q. The simple microscope was invented by – Galileo (1610)
Q. The shortest phase of all mitosis phase is – Anaphase
Q. Meiotic division is also known as reducetional division
Q. The term mitosis was coined by Fleming (1882)
Q. Mitosis occurs in Somatic cells
Q. Segregation occurs during meiosis
Q. The longest mitotic phase is -Prophase
Q. Absorption Spectrum of photosynthesis is blue and red
Q. Action Spectrum of photosynthesis is red and blue
Q. Dark reaction was discovered by Blackman
Q. Dark reaction is also known as – Blackman reaction or C3 – cycle
Q. The main site for dark reaction of photosynthesis is – stroma
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