underplanting rattan in rubber planttions - Kerala Forest Research ...

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In the second method of planting, the stakes were positioned at about one and ahalf meter away from a rubber tree on the same side (Fig. 2). Since harvesting ofmature rattan is cumbersome and needs lot of space, only alternate rows wereplanted with rattan. In this type of planting also a minimum of 6 m space wasleft between two rattan seedlings.O X X` O X X O X X O X X O XO X X O X X O X X O X X O XO X X O X X O X X O X X O XX-Rubber; O- RattanFig. 2. Diagrammatic chart showing the alternate row plantingof rattan in rubber plantationsAs the rubber plantation where the present study was conducted was wellmaintained and regularly tapped, weed growth was minimal. However, a spotweeding was carried out for the ease of planting work. Pits of size 45 cm x 45 cmx 45 cm were taken in May, along with the pre-monsoon showers, and plantingwas carried out immediately.Periodic growth monitoring was carried out and observations on survival,production of leaves, flagellum, and height of rattan were made and datagathered from all the species planted. Comparison of the growth and fieldperformance of different rattan species was also made.5
3. RESULTS AND DISCUSSION3.1. Raising of seedlings in nurseryIt was observed that flowering and fruiting was a regular phenomenon inrattan and every year a mature female rattan plant produced enormousquantity of fruits (Fig. 3). In species likeC. hookerianus flowering and fruitingoccurred even twice a year; during April -May and September - November. Maturityof the fruits could be ensured by thegolden yellow colour attained while stillremaining attached to the mother plant.As in the case of any other forest trees,seeds should be collected from maturerattan plants. Usually the fruiting branchis cut and the fruits are separated out.The fruit/seed characteristic features likefruit weight/seed weight etc has beengiven in Table 2.Fig. 3. Fruits of rattanTable 2. The fruit/seed characteristics of different rattan species used in nurserySl. No.Species selectedNumber offruit/kgNumber ofseeds/kgNumber of Seedrequired for 1m 2Seeds required(in Kg) for sowingin 15m 2 (standardnursery bed)Fruits to becollected (in Kg)for gettingsufficient seedsfor sowing in 15m 2 (standardnursery bed)1. Calamus hookerianus 1600 4980 115 1725 5.4002. Calamus karnatakensis 1590 4818 119 1785 5.4303. Calamus pseudorivalis Wildlings from the Andaman and Nicobar Islands4. Calamus pseudotenuis 1557 4714 122 1830 5.5505. Calamus rotang 1850 4002 144 2160 4.6656. Calamus thwaitesii 271 852 676 10140 31.8756
Page 1: KFRI Research Report No. 245 ISSN 0
Page 4 and 5: CONTENTSAbstract ..................
Page 6 and 7: K1. INTRODUCTIONerala is one of the
Page 8 and 9: 2. MATERIALS AND METHODS2.1. Study
Page 12 and 13: Fresh seeds (Fig. 4) always gave hi
Page 14 and 15: Seedlings of 12 to 15 months were f
Page 16: 3.3.2. Height growth of seedlings i
Page 19: 3.3.4. Development of flagellumThe
Page 23: 7. REFERENCESLakshmana, A.C. (1993)

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