soyabean
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SYSTEMATICS Scientific Name: Glycine max.
Family : leguminoseae
Chromosome No. : 2n = 2x = 40
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TAXONOMY. Botanical name :Glycine max.
Order :Fabales
Family :Fabaceae
Sub-family :Faboideae
Genus Glycine
Tribe :Phaseoleae
Sub-tribe :Faboideae
Species :max
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INTRODUCTION
Soybean is the major legume crop of the
World in terms of total production.
Soybean seeds contain 40% protein and
20% oil on dry basis.
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ORIGIN This crop originated in china and is
currently grown in 35 countries of the world.
United states is the largest producers followed by Brazil, China, and Argentina.
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USES OF SOYBEAN1. SOYBEAN MEAL
A.FEED.
Poulatry feed; livestock feeds; fish food.
B.SOYFLOUR.
(1)Edible uses.
Bakery ingredents; noodles; meat products, confections.
(2) Industrial uses:
Adhesive, plywood, insecticidal spray, texture paints, nutrients, antibiotics ,beer and ale.
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Contd….. 2. SOYBEAN OIL.
A.EDIBLE USES.
Cooking oils; coffee whiteners creamers.
B.TECHNICAL USES.
Disinfectants; electrical insulation; insecticides; pesticides; fungicides; herbicides; soaps.
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Contd….It is most popularly used in china in the
name of soy foods such as tofu, miso, temph,etc.
To the chinese, the soybean was know as “meat of the fields”.
Because it produces about three times more protein than rice, wheat, or maize.
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Contd….The plant serves as good souce of
nitrogen by fixing about 50kg per hectare.
It has become the major source of edible vegetable oils.
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CYTOLOGYGlycine is the only genus where species
have diploid chromosome number of 40 and 80 but not 20.
The large number of chromosomes, small size,and similarity of the chromosome have often discouraged cytological investgation in soybean.
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RELATED SPECIES OF SOTBEAN.
A.SUBGENUS GLYCINE.
Glycine clandestine.
G.tomentella
B.SUBGENUS SOJA.
G.soja
G.max
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FLORAL BIOLOGY
Soybean belongs to family legumioseae and it is highly self pollinated.
Soybean has perfect flower consistig of calyx,
Corolla, pistil and stamens.
There are 5sepals, green,hairy sepals.
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Contd…The corolla begins to emerge
from the sepals.
The are five petals,one standard, two keel and two wing petals.
The keel petals encloses the pistal and the stamen.
Stamens are 10 in number and diadelphous,nine are united to form a tube around the ovary and the tenth is free.
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Contd…
The pistle has a single ovary with generally two or three ovules,a long style and stigma.
The stigma is slightly hairy and covered by the Keel.
Fruit is a legume.
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SELFING AND CROSSING TECHNIQUES
Equipments required.
Dissecting forceps.
Needles.
Paper clips.
Cover bags.
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Selfing Soybean is
predominantly a self pollinated crop.In order to ensure complete selfing,the inflorence is enclosed in a bag. The bagging material used is paper bag.
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Anthesis
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Starts in morning around 6 am and
continues till 11 am.
Maximum flower opening – 11am to 5 pm.
STEPS FOR EMASCULATION
Select the the inflorescence containing young buds for emasculation.
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CONT…Remove the immature
buds.
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Contd…Remove the calyx
with the help of forceps.
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Contd…
Remove the corolla by grasping with a forceps above the calyx scar and lifting them upward.
Contd…..Remove all the diadelphous stamens with
the help of forceps or needle.
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STEPS OF POLLINATION.
Pollination is done in the next morning. Collect all the pollen from the male parent by removing organs with the forceps when the anthers are matured.
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Contd…..
Anthers are gently brushed on the stigma untill the pollen is clearly visible on it.
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Contd…
Bag the pollinated infloroscence.
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Contd… Attach the tag with the following information.
Objective.
Date of emasculation.
Date of pollination
Name of the breeder
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Research centers. AICRP on soybean headquater located in G.B.
PANT university of agriculture was shifted to Indore with the establishment of NRC on soybean at Indore in 1986.
INTERNATIONAL SOYBEAN PROGRAMME(INTSOY).
It was stated in 1973 and sponsored by United states Agency for international development is a programme of the University of Illonois at urbana-champaign.
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Cont… Progamme activities:
Research
Testing and breeding programmes.
Publications
Regional and international conferences.
Training courses and study programme.
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Sources of soybean seeds. Directorate of soybean : Indore.
National seed project : Bangalore and Dharwad.
Activities :crop breeding , crop protection , crop production.
Varieties grown in B’LORE NSP:
MAUS -2, KARUNE, MACS-450,KB -79,HARDEE,KHSB-2.
JS-335,JS-93-05.
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