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Seed Quality Enhancement : Principles and Practices

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Seed Quality Enhancement : Principles and Practices

K. Vanangamudi , S. Kalaivani , M. Vanangamudi , G. Sastry , A. Selvakumari & P. Srimathi

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Seed is the source of future plants or foods, is the storage place of culture of history, is the first link in the food chain, is the ultimate symbol of food security. Seed is the source of life. Seeds are basic in crop production. No agricultural practice can improve a crop beyond the limits set by the seed. Quality seed is the key for successful agriculture, which demands each and every seed should be readily germinable and produce a vigorous seedling ensuring high yield. Care with the seed and joy with the harvest and Good seed doesn t cost it always pays are the popular adage which enlightens the importance of the quality seed. The farmers always very much interested in the best seed management practices which are safe, environmentally sound and scientifically proven technologies. Understandably, in view of the importance of quality seeds in Agriculture, both as a product and as a means of establishing a crop, most attention at all levels of investigation has been directed to crop seeds. Since seed is a biological entity, deterioration beyond harvest is inevitable. The consequences of low quality seeds are poor germination, low and delayed emergence and weak growth leading to poor field stand and ultimately reflecting on reduced yield. Low productivity could be attributed broadly to use of poor quality seeds. At present to overcome this, several seed enhancement techniques are available for quality upgradation. It has two goals; one is related to seed designing and other to seed functioning. The rationale for pre-sowing seed enhancement techniques is to mobilize the seeds own resources and to augment them with external resources to get maximum improvement in field stand establishment and yield. To achieve this, several physical, physiological and biochemical treatments are available at present to give value addition to seeds. Physiological seed treatments that improve seed performance are based primarily on seed hydration and dehydration. Among several non physiological seed treatments, coating or pelleting can also indirectly improve seed germination, stand establishment and crop productivity.

1 Seed Quality Enhancement - G. Sasthiri & S. Kalaivani

2 Classification of Seed Quality Enhancement Treatments - S. Kalaivani,  A. Selvakumari & R. Revathi

3 Dormancy and Pretreatments - M. Djanakiraman, & Mallika Vanangamudi

4 Dormancy Breaking Treatments in Rice, Wheat, Oats, Cotton, Groundnut, Sunflower, Pulses, Bhendi and Gourds - S. Vincent, A. Selvakumari & S. Kalaivani

5 Seed Fortification - P. Srimathi & S. Sumathi

6 Seed Hardening  - R. Jerlin & S. Sumathi

7 Seed Priming - R. Umarani & R. Vigneshwari

8 Fluid Drilling - V. Manonmani & V. Vijayalakshmi

9 Dry Permeation - V. Manonmani & J. Srinivasan

10 Pregermination- P. Tamilkumar & R. Vigneshwari

11 Seed Pelleting - J. Renugadevi & M. Jayanthi

12 Seed Pelleting and Aerial Seeding - V. Sivakumar, R. Anandalakshmi, Rekha R. Warrier, B. Gurudev Singh  & K. Subramanian

13 Polymer Seed Coating- A. Bharathi & J. Srinivasan

14 Seed Colouring- P. Natesan & V. Vijayalakshmi

15 Special Treatments for Seed Upgradation: IDS, PREVAC, Specific Gravity Seperation and NIR  - V. Sivakumar,  S. Kalaivani & R. Revathi

16 Electric Seed Treatment - G. Sasthri, S. Sakthivel & S. Magheswaran

17 Magnetic Seed Treatment- S. Sakthivel, K. Natarajan & S. Magheswaran

18 Irradiation Treatment- S. Lakshmi, S. Sakthivel & S. Mageshwaran

19 Protective Seed Treatment - M.R. Srinivasan, K. Prabakar, D. Sharana Basava Reddy, M. Rajesh & J. Srinivasan

20 Biofertilizer Seed Treatment- K. Kumutha & S. Poonguzhali

21 Biocontrol Agents Seed Treatment- S. Kalaivani & M. Prabhu

22 Botanical Seed Treatment- P.R. Renganayaki & S. Sumathi

23 Midstorage Correction Treatment- P.R. Renganayaki & A. Sripunitha

24 Seed Quality Enhancement in Tree Crops- P. Tamilkumar & S. Sumathi

25 Indian Seed Industry and Seed Trade- V. Sakthirama & R. Dhivya

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