Browsing by Author "Mathur, R.K."

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    Comparative performance of different oil palm hybrid combinations in Cauvery delta region of Tamil Nadu
    (2016) Sumathi, T.; Rajendran, R.; Mathur, R.K.; Maheswarappa, H.P.
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    EVALUATION OF OIL PALM HYBRIDS FOR PRECOCITY IN KONKAN CONDITIONS OF MAHARASHTRA
    (2016-01) Maheswarappa, H.P.; Gawankar, M.S.; Haldankar, P.M.; Mathur, R.K.; Mahadkar, U.M.; Arul Raj, S.
    Oil palm hybrids of Dura X Pisifera, were evaluated under Konkan conditions of Mahar'ashtra for three year's from 2013 to 2015. Significant var'iation for number of leaves, weight of bunch and yield of fresh fruit bunch (FFB) was recorded. Among the hybrids NRCOP4 and NRCOP-5 registered minimum height (2.4 m) during the year 2015 and maximum sex ratio above 50 percent. The average sex ratio for' population was 49.2 per cent. The hybrid NRCOP-2, NRCOP-8 and NRCOP-5 had more number of female flowers than male flowers. There was significant variation among hybrids for leaf production and for FFB yield. The hybrid NRCOP-2 r'ecorded highest yield during 2015 (12.8 t/ha-I) and average of7.3 tonnes per hectare over the years. Among the r'emaining hybrids NRCOP-l (9.7 t/ha-l), NRCOP-8 (9.6 t/ha-I) and NRCOP-9 (9.5 t/ha-I) were also found promising for FFB yield during 2015, Three years average perfor'mance exhibited that NRCOP-2 was most pr'omising hybr'id followed by NRCOP-8, NRCOP-9, NRCOP-6 and NRCOP-7 under Konkan agro-c1imatic conditions of Maharashtra.
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    Initial performance of ten oil palm cross combinations under three agro-climatic conditions in India
    (2016) Sanjeevraddi G. Reddi; Gawankar, M.S.; Maheswarappa, H.P.; Madhavi Latha, P.; Mathur, R.K.
    yielding new oil palm cross combinations, a field experiment was conducted in different agro-climatic regions of India viz., Zone No-10 Southern Plateau and Hills (Gangavathi, Karnataka), Zone No-12 Western Coastal Plains and Ghats (Mulde, Maharashtra) and Zone No-11 Eastern Coastal Plains and Hills (Vijayarai, Andhra Pradesh) involving ten cross combinations of tenera oil palm (NRCOP 1-10). The data from three locations over two years indicated that, significantly higher annual rate of leaf production per palm was recorded in NRCOP-6 (21.7) compared to NRCOP-3 and it was on par with other hybrid combinations. Significantly higher sex ratio was recorded with NRCOP-4 (63.1%) compared to NRCOP-1 (54.6%) and NRCOP-6 (54.8%) and was on par with other hybrid combinations.The hybrid cross combination, NRCOP-4 recorded significantly higher fresh fruit bunches (FFBs) yield 12.5 t ha-1 compared to NRCOP-1, NRCOP-3, NRCOP-7 and NRCOP-9 and it was on par with remaining hybrids and a similar result in bunch weight and number of bunches per palm was recorded. Pooled data on FFB yield for 2013-15 indicated that the hybrid combination NRCOP-4 which recorded higher FFB yield (12.6 t ha-1) at Gangavathi and at Vijayarai (22.6 t ha-1) have better prospects for adaptation under Tungabhadra command area and coastal region of Andhra Pradesh. For Konkan region of Maharashtra, the hybrid NRCOP-8 recorded the highest FFB yield.