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999			_c25917 _d25917
003			OSt
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008			140128s9999 xx 000 0 und d
082			_a634.9 _bHAR/GR
100			_aHarikrishnan Nair G
245			_aGrowth and Nodulation Characteristics of Selected Indigenous Tree Legumes
260			_aVellanikkara _bDepartment of Tree Physiology and Breeding, College of Forestry _c1997
502			_bMSc
520	3		_aAn investigation was carried out to study the nodulation characteristics of seven Indigenous/ naturalized tree legumes in Trichur district of Kerala State. The homesteads of five selected panchayats viz. Pananchery, Madakkathara, Nadathara, Puthur and Ollukkara of the district were surveyed to assess the natural nodulation and to collect nodules for isolating Rhizobium.• The response of these tree legumes to . . inoculation with local isolates and commercial cultures of Rhizobium were done by seed inoculation and growing the seedlings in a glass house. In a separate experiment, the soil collected from the base of the nodulating tree were also evaluated as an inoculant. The inoculation studies were laid out in CRD with ten replications. The study revealed that, among the seven tree species investigated, five, viz., Albizia lebbeck L. (Nenmeni vaka) , Dalbergia latifolia Roxb. (Rosewood/Veeti), Erythrina stricta Roxb. (Mullumurukku), Pongamia pinnata (L.) Pierre (Ungu) and Pterocarpus marsupium Roxb. (Venga) were nodulating in their natural stand. In the other two viz., Adenanthera pavonina L. (Manchadi), Tamarindus indica L. (Tamarind) nodules were absent. The largest size nodules were found in the case of E. stricta and the smallest in D. latifolia. Regarding the shape, all nodulating species had round nodules except for A. lebbeck which had coralloid nodules. The Rhizobium isolates obtained from all the species showed growth in YEMA medium within 3-4 days, which indicates that, they are fast growing type. The promising Rhizobium isolate/commercial cultures identified were TAL -169 and DTA1 for D. lallfolia. TAL-749 and ETR, for E. stricta; P0 TR5 and Po TR3 for P. pinnata; GR-H and NBL for A. lebbeck. Inoculation with the various isolates/commercial isolates showed no response in P. marsupium. Soil used as an inoculant to induce nodulation was found to be unsuccessful in all the selected tree legumes.
700			_aAsokan P K (Guide)
856			_uhttp://krishikosh.egranth.ac.in/handle/1/5810140037
942			_2ddc _cTH