K. R. Solanki , N. L. Kackar , S. K. Jindal

Abstract

In Prosopis cineraria (L.) Mac bride technique on air layering was developed successfully at Central Arid Zone .Research institute, Jodhpur. 100 per cent success was achieved in the twigs of 15 mm diameter treated with Seradix B 3 clay and covered with clay during the month of july and August. Profuse ischolar_maining and better establishment was observed in twigs or around 15 mm diameter.For best results, attempting air layering in July, detaching from mother tree in September and transplanting in field in the month of November would be useful under arid conditions.

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A. K. Chakravarty , N. L. Kackar

Abstract

Lasiurus sindicus Henr. popularly known as Sevan grass in the arid zone of Rajasthan was observed to exhibit least variation in morphological and physiological characters in its native habitat. Some growth forms were, however, isolated on the basis of their forage yield. The collection Nos. 317, 318, 319 and 353 recorded comparatively higher fora ge production out of 13 such collections. The collection No. 319 indicated bigger leaf size, greater height, more tillers and maximum basal diameter per plant as compared to other collections. The species was found to be advanced genetically.

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A. K. Chakravarty , N. L. Kackar

Abstract

Panicum antidotale Retz, popularly known as Gramna in the desert areas of Rajasthan exhibits very little variation of morphological characters in its native habitat. Variations were however observed in plant habitat. Tiller number, basal diameter and herbage yield of plants. The collection Nos. 330, 335, 336, 346, 621 and 622 were isolated on the basis of these characters and they may provide germ plasm to evolve suitable types for maximum herbage yield under arid and semi arid conditions. It has been further observed from the trials of 13 selected collections at Jodhpur and Pali for 4 years that the collection Nos. 29, 297, 330 and 340 have better growth and herbage production under arid condition of Jodhpur and the collection Nos. 335, 337 and 341 indicated better performance under semi arid condition of Patli.

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