fabioclass

CLASSIFICATION OF FRUITS 2





Classification of fruits: Fruits may be classified as simple, foot-pound, and aggregate. Simple fruits are those formed from a flower with a monocarpous pistil. Examples are beans, lemon and mango. Compound/multiple fruits are formed from an inflorescence or bunch whose fruitlets are fused together to form a , jingle large fruits. Examples are pineapple and jack fruit. Aggregate joints are formed from a single flower with an apocarpous pistil, carpel constitutes a fruiterer. An example is kolanut.
Again fruits can also be divided into two: fleshy and dry fruits.
(i) Fleshy or succulent fruits: This group includes:
1. Berry: This has a fleshy pericarp with hard seeds which are embedded in the fleshy and pulpy endocarp. Examples are tomato and guava.





2. Hesperiditrm: This class of fruit is made up of distinct chambers of separated sheets of endocarp. The epicarp and mesocarp are fused together to form the skin. Seeds are embedded in each chamber. Examples are orange, lemon, lime, tangerine.
3. Drupe: Phis coasists of a thin epicarp. fleshy or fibrous mesoearp and a stony or hard endocarp surrounding the see Examples are mango, coconut and palm fruit.
4. Pome: This consists of an outer covering and a fleshy edible part which are formed by the swelling of the receptacle. Examples are pear and apple.
5. Sorosis: This is a fleshy multiple false fruit which develop from a dense inflorescence. Every part of each flower forms part of the fruit while the peduncle swells to form the core. Example
are pineapple and Jack fruit.


DIAGRAM
Figure 2.4.2a: Internal Structure of Orange (Hesperidium)



DIAGRAM
Figure 2.4.2b: Internal Structure of Coconut (Drape)

DIAGRAM





(ii) Dry fruits: These are fruits which have hard, dry pericarp. They include:
1. Legume: This has one carpel which can split along two edges. Examples are cowpea, groundnut.
2. Capsule: This has many joined carpels which split along all suctures from base to the apex. Examples are okro, cotton.
3. Caryopsis: This is a simple dry one seeded fruit which does not split open (indehiscent). Examples are maize, guinea corn, millet and other cereals.
4. Nut: This has a hard pericarp which can be broken or cracked. Examples are cashew nut, walnut, almond.
Advantages of sexual or seed propagation
1. It is very easy to practice. That is seeds can be carried conveniently to the farm
2. It brings about easy multiplication of pfarrt population.
3. Well stored seeds can remain viable for a long time.
4. It is a sure way to start a disease free crop.
5. It can be used to improve crops through cross-breeding.

Disadvantages of sexual or seed propagation
1. Some crops take long time to mature and fruit when planted by seeds. Example is orange.
2. Some seeds are lost in the soil during propagation because of termites, rats and hare.
3. It is difficult to grow crops that are seedless with this method
N:br /> Seed treatment before sowing:
1. Pre-soak the seeds. This is to allow some very hard secdi to absorb water that will aid germination.
2. Scarification is carried out to loosen the surface of the seeds for easy emergence of the radical and plmule.
3. Chemical dressing of seeds. This is done so that disease organisms do not affect the seeds. It is also to prevent pests from destroying the seeds.




2. Asexual or vegetative propagation
This involves the use of parts of plant in multiplying the plant, parts of plant such as roots, stem and leaves can be used instead of seeds.

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Agricultural biology topics


HERE YOU WILL FIND EVERY AVAILABLE TOPICS ABOUT AGRICULTURAL SCIENCE AND BIOLOGY. AND THE LINKS TO THEIR VARIOUS SOURCES.
1. DEVELOPMENT OF AGRICULTURE
2. IMPORTANCE OF AGRICULTURE
3. SUBSISTENCE AGRICULTURE
4. COMMERCIAL AGRICULTURE
5. PROBLEM OF AGRICULTURAL DEVELOPMENT
6. SOLUTIONS TO POOR AGRICULTURAL DEVELOPMENT
7. AGRICULTURAL LAWS AND REFORMS
8. ROLES OF GOVERNMENT IN AGRICULTURAL DEVELOPMENT
9. AGRICULTURAL POLICIES
10. PROGRAM PLANNING IN AGRICULTURE
34.
FORESTRY
35. WILDLIFE CONSERVATION
36. FACTORS AFFECTING LAND AVAILABILITY
37. TOPOGRAPHY
38. SOIL
39. BIOLOGICAL FACTORS
40. SOCIAL-ECONOMIC FACTORS
41. ENVIRONMENTAL FACTORS AFFECTING AGRICULTURAL PRODUCTION
42. CLIMATIC FACTORS AFFECTING AGRICULTURAL PRODUCTION
43. TEMPERATURE
44. RAINFALL
45. WIND
46. SUNLIGHT
47. SOLAR RADIATION
48. BIOTIC FACTOR AND AGRICULTURAL PRODUCTION
49. PESTS
50. BIRDS
51. DISEASES
52. SOIL MICRO-ORGANISMS
53. SOIL PH
54. ROCK FORMATION
55. IGNEOUS ROCK
56. SEDIMENTARY ROCKS
57. METAMORPHIC
58. SOIL AND ITS FORMATION
59. FACTORS OF SOIL FORMATION
60. LIVING ORGANISM
61. PARENT MATERIALS
62. SOIL FORMATION TOPOGRAPHY
63. PROCESS OF SOIL FORMATION
64. WEATHERING
65. PHYSICAL WEATHERING
66. CHEMICAL WEATHERING
67. PRESSURE
68. WATER
73. BIOLOGICAL WEATHERING
74. CHEMICAL AND BIOLOGICAL COMPOSITION OF THE SOIL
75. SOIL WATER
76. MICRO AND MACRO NUTRIENTS
77. SOIL MICRO ORGANISM
78. PROPERTIES OF SOIL
79. SOIL STRUCTURE
80. SANDY SOIL
81. CLAY SOIL
82. LOAMY SOIL

83. SOIL TEXTURE
84. IDENTIFICATION OF SOIL TYPES THROUGH EXPERIMENTS
85. RETENTION OF WATER BY VARIOUS SOIL TYPES
86. DETERMINATION OF SOIL PH REACTION
87. COLORIMETRIC DETERMINATION OF SOIL PH LEVEL
88. PH SOIL TEST
89. PLANT NUTRIENTS
90.
MACRO NUTRIENTS IN GENERAL
112.
THE MAINTENANCE OF SOIL FERTILITY
113. CROP ROTATION
114. APPLICATION OF ORGANIC MANURES
115. FARM YARD MANURE
116. APPLICATION OF INORGANIC MANURE

117. LIMING
118. FARMING PRACTICES
119. BUSH BURNING
120. CLEARING

121. FERTILIZER APPLICATION
122. ORGANIC MANURING
123. FARM YARD MANURE

124. HUMUS
125. COMPOST
126. CROP ROTATION
133. FARM POWER AND MACHINERY
134. SOURCES OF FARM POWER
135. HUMAN SOURCE
149.
PLOUGHS
142.
FIELD MACHINES
157.
PLANTERS
164.
SIMPLE FARM TOOLS
165. AGRICULTURAL MECHANIZATION
166. THE CONCEPT OF MECHANIZATION

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