General agriculture pointers -8 ✓

 

• A specific way adopted by the communicator to effectively convey his message so that it is understood by the maximum number of the audience is called Treatment of Message.
• A substance used for artificial rain stimulation is AgI (Silver Iodide) / Dry Ice.
• A system of tillage in which organic residues are not inverted into the soil and are used as a protective cover against erosion and evaporational losses of soil moisture is known as Conservation Tillage or Stubble Mulch Tillage.
• A systematic display of models, specimens, charts, real objects, and any informative materials is referred to as an Exhibition.
• A tall pea plant (DD) and a tall pea plant (Dd) have what in common? Their Phenotype.
• A technique to rejuvenate unproductive and senile cashew trees is called Top Working.
• A thin layer of meristematic cells located between phloem and xylem is known as Cambium.
• A time-based market basically for perishable goods is termed as a Short Period Market.
• A transgenic plant containing genes from both potato and tomato plants is known as Pomato.
• A typical climacteric fruit is the Banana.
• A shade-loving leafy vegetable is Water Leaf.
• A sheet of paper with a pictorial slogan, which is utilized to attract mass attention for a single idea, is called a Poster.
• A single cross (A x B) x OP (Open Pollinated) variety is referred to as a Double Top Cross.
• A single DNA molecule condensed into a compact structure in vivo by complexing with accessory histones or histone-like proteins is known as a Chromosome.
• A single gene affecting more than one character or governing multiple traits is called Pleiotropy.
• A single practice demonstration used to show the method of sowing is known as a Method Demonstration.
• A situation in which a crop needs more of a given nutrient yet has shown no deficiency symptoms is referred to as Hidden Hunger.
• A small published book consisting of 24 to 48 pages is known as a Bulletin.
• A soil having more sodium salt, a pH greater than 8.5, and 15 ESP (Exchangeable Sodium Percentage) is called Alkali Soil.
• A soil with a pH value of 4.7 can be termed as Acidic.
• A statement of situation, objectives, problems, and solutions is referred to as a Programme.
• Origin of bajra is Africa.
•  Bajra is sensitive to - water logging and Acidic soil 
•  The largest producer state of cotton in India is -Gujarat 
•  Bad opening of balls is known as - Tirak  
• In cotton , the maturity of fibre is judged by – Arealometer 
• Which type of incompatibility is found in mango - Gametophytic  
• Mango variety , most suitable for high density planting is Amarpali
•  Mango inflorescence contains , which type of flowers - male and hermaphrodite
•  The off season mango variety is - Niranjan  
• The only mutant cultivarr of mango is – Rosica 
• Magnifera contains about 41 species.
• The regular bearing varieties of mango are - Neelum , Banglora , pairi, etc. 
• Mosambi a sweet orange cultivar was introduced from - Mozambique  
• The edible portion of citrus fruits is -Juicy placental hairs  
• The first record of the name grape fruit in Jamaica was in – 1814
• The Banana breeding was first stared at - Imperial college of tropical agriculture in Trinidad (1922).
•  Banana Breeding was stared in India in 1949 at Central Banana Research station , aduthurai (TN).
• Banana can be stored at - 13 C and 85 % RH 
• Banana initiate flowering 9-12 months after Planting  
• The yellow pigment in papaya is caricaxanthin.  
• Papaya is the richest source of vitamin A next to mango it contains 2020 IU/ 100 g fruit 
• King of temperate fruit is - Apple 
•  Family of apple is Rosaceae 
•  Mother of all delicious group of cultivars is - Red delicious  
• The king of arid fruit is Ber.
• The commercial propagation method off grape is - hard wood cutting                            
•  In India the black soil is mostly found in - Maharashtra 
•  Red soil is mostly found in – Tamilnadu 
• The soil which is most suitable for most crops is - sandy loam 
•  Red colour in the red soils is due to presence of various oxides of irons  
• The vertical section of the soil showing the various layers from the surface to the unaffected parent material is known as - soil profile . 
• The arrangement of soil particles and their aggregate  into certain defined is called - Soil structure  
•  Particle density of soil is also known as - true density 
•  Generally the particles density of normal soil is - 2.65 gram/cm3 
•  The bulk density of normal soil is - 1.33 g/cm 3 
•  The formula of porosity of soil is - porosity =100-(bulk density / Particle density ) 
• The certain exchange capacity (CEC) of montmorillonite is - 60-100 me / 100 gm 
• The first soil classification system was developed by - russion scientist Dokuchaev (1880)
• The U.S classification system the soil orders are – 10 
•  Formula of bulk density is= wt. of soil / volume of solids and pores 
•  Law of minimum was given by - Vn Liebig (1840) 
• Top most mineral horizon is - A horizon 185. exchangeable sodium %age is also known as soluble %age 
• The term pH was introduced by Sorensen (1909) 
•  Energy exchange elements are H & O 
• K & Na is determined by Flame Photometer.  
• Micro nutrient is also known as - trace element , Oligo -element or spurned elements.
• Bulk method was first used by- Nelson Ehle in 1908
•  The modification of bulk method is - Single seed descent  
• In pure line Theory ,Johannsen was working on- Princess variety of Rajma  
• Mass Pedigree Method was proposed by- Harrington in 1937 
• The oldest method of selection is - mass Selection 
•  Progeny test was developed by -Louis de Vilmorin  
• Progeny Test is also known as - Vilmorin isolation principle  
• Single seed Descent method applied for the first time in oat in 1965 by – Graphius
•  The term recurrent selection was coined by -Hull in1945 
• The use of synthetic varieties for commercial cultivation was first suggested in maize by-Hayes and Garber , 1919
•  Synthetic varieties are maintained by-open Pollination 
• A synthetic variety can be developed from-Inbreeds, clones and open pollinated varieties . 
• The general or basic concept in the development of synthetic varieties is - Exploitation of hybrid vigour 
• The concept of disruptive mating and selection was developed by - Mather (1953) and Thody (1958)
•  The Concept of dialled selective mating system was originally develped by - jonsen in 1970 
• The hetrosis is also known as - Hybrid vigour 
•  The term heterosis was first used by - Shull in 1914      
•  Dominance theory was proposed by - Devenport  in 1908