Studies of quality seed production and vegetative multiplication in Guinea Grass cv. CO1 (Punicum maximum Jacq.)

Registration ID: IJNRD_226107

Published ID: IJNRD2407500

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Aman Kumar, Mousmi Syed, Mahipat Singh, Manish Verma

Guinea grass, Panicles, Physiological maturity, Seed yield, vigour

A experiment was conducted at Organic Research Farm, Karguanji, Department of Seed Science and Technology, Institute of Agricultural Sciences, Bundelkhand University, Jhansi (U.P.) during kharif season, 2023-24. The experimental material was grown in a Randomized Block Design with three replications.Plant to plant and row to row distance was kept 45 cm. and 15 cm. respectively. All the recommended agronomical practices were adopted to ensure good performance of Crop. Sufficient number of panicles were selected randomly and tagged at 50 per cent flowering. Then, the panicles were collected at random from the field at weekly intervals upto 6weeks (W 1 to W 6). The following seed quality estimations were performed to study the development and maturation for assessing the physiological maturity.An investigation was conducted to study the pattern of development and maturation under seed to seed method for fixing physiological maturity of seed. The results indicated that the panicle length reached its maximum value at second and fifth weeks after 50 percent flowering in seed to seed methods respectively.The panicle fresh weight was maximum, at first week after 50 per cent flowering in seed to seed method and there after it decreased.The panicle moisture content which was maximum immediately after flowering decreased with maturity. This was associated with an increase in dry weight of panicle which was maximum at fifth and sixth weeks after 50 percent flowering respectively in seed to seed method.The number of filled seeds and seed recovery percentage was maximum at fifth week in seed to seed method.The fresh weight of seed after reaching its maximum weight at third and fourth weeks respectively in seed to seed method decreased in later stages of ripening processes.A decrease in fresh weight was closely associated with a loss in moisture content of the maturing seed which reached the minimum of 37.0 and 35.4 percent respectively in seed to seed method at physiological maturity. The seed reached its maximum dry weight at third and fourth weeks after 50 percent flowering in seed to seed method.The shattering loss was more after physiological maturity i.e., at fifth and sixth weeks after 50 per cent flowering respectively in seed to seed method.The developing seed started to germinate at three weeks after 50 percent flowering under seed to seed method and reached the maximum germination at fifth and sixth weeks respectively.The seedling vigour in terms of root and shoot length, dry matter and vigour index attained its maximum values only at fifth and sixth weeks, respectively in seed to seed method.The results of tiller wise seed quality studies revealed that the number of rachii/ panicle and panicle length, fresh and dry weight were more in the first formed (T1) tillers compared to last formed tillers under seed to seed method. Similar trend was also observed for seed characters such as seed fresh and dry weight and germination and seedling vigour which decreased with late tillering. The seeds from T6 did not germinate in the methods.

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Aman Kumar, Mousmi Syed, Mahipat Singh, & Manish Verma (July-2024). Studies of quality seed production and vegetative multiplication in Guinea Grass cv. CO1 (Punicum maximum Jacq.). INTERNATIONAL JOURNAL OF NOVEL RESEARCH AND DEVELOPMENT, 9(7), g11-g19. https://ijnrd.org/papers/IJNRD2407500.pdf

Volume 9 Issue 7, July-2024

Pages : g11-g19

Paper Reg. ID: IJNRD_226107

Published Paper Id: IJNRD2407500

Research Area: Engineering

Author Type: Indian Author

Country: -, -, India

Published Paper PDF: https://ijnrd.org/papers/IJNRD2407500.pdf

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Journal Name: INTERNATIONAL JOURNAL OF NOVEL RESEARCH AND DEVELOPMENT(IJNRD)

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