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Volume 6, Issue 1, February Issue - 2018, Pages:116-123

Authors: E.G.O. Ogidi*, I. K. Okore, and J.C. Dike
Abstract: Numerical analysis of some quantitative nutrient soil-plant content and bud take in Hevea brasiliensis (HB) were carried out in 2014 and 2015 at Rubber Research Institute of Nigeria Sub-station Akwete, Abia State, Nigeria. Further, effect of different fertilizer doses and bud wood age on soil - plant nutrient absorption and Hevea budding success was also investigated during this study. Three doses of N.P.K (20:10:10) fertilizer (0, 100, and 150 kg/ha) were applied to five bud wood garden of different ages  (2, 5, 10, 15 and 20 years)  in a factorial pattern with three replicates in late October 2014. Budding activities and transplanting were carried out in 2015. Result of study revealed that bud wood age and NPK fertilizer significantly (P < 0.05) increased bud stick length, bud take percentage and sprouting. Significant positive correlations (P < 0.01) were reported between soil calcium and magnesium, soil organic matter and total nitrogen, available phosphorous, exchangeable potassium; leaf nitrogen, calcium and phosphorous contents. Percentage bud take showed positive effect with soil organic carbon, total nitrogen, exchangeable calcium, leaf calcium and nitrogen content. Four Principal components (PC) had eigen values greater than one and contributed 99.6 % of the total variation among the studied parameters. PC1 contributed 69.30%, whereas PC2, PC3 and PC4 contributed 14.84 %, 9.11 % and 6.35 % respectively of the total variation. Accordingly, PC1 was loaded with soil organic carbon, total nitrogen, available phosphorous, exchangeable potassium, calcium, magnesium, leaf nitrogen and calcium contents and were most discriminative. Hence, appropriate selection based on PC1 parameters will enhance Hevea brasiliensis budding programme in southeastern Nigeria.  
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