Peranan Cendawan Mikoriza Arbuskular dalam Meningkatkan Daya Adaptasi Bibit kelapa Sawit terhadap Cekaman kekeringan pada media tanah Gambut Bekas Hutan

Kartika, Elis (2010) Peranan Cendawan Mikoriza Arbuskular dalam Meningkatkan Daya Adaptasi Bibit kelapa Sawit terhadap Cekaman kekeringan pada media tanah Gambut Bekas Hutan. In: Semirata BKS-PTN Wilayah Barat Bidang Ilmu Pertanian, 23-25 Mei 2010, Universitas Bengkulu.

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Abstract

In a long dry season, oil palm that planted in peat soil will experience drought stress. Drought stress is one of the main limiting factors in growth, nutrient uptake and yield of oil palm. One of the alternatives to overcome this drought stress problem on many plants is through inoculation with AMF. This research was conducted to observe the adaptabilty of oil palm seedling inoculated with AMF on drought stress in peat of used forest soils. The experiment on this soil type was arranged in a Factorial Completely Randomized Design with two factors. The first factor was AMF inoculation (M0= without AMF and M1 = inoculation of AMF) and the second factor was drought stress levels (available water 100%, 75%, 50% and 25%). This result indicated that AMF inoculation improved the adaptability of oil palm seedling on every level of drought stress, as shown by the responses of growth and nutrient uptake. The adaptation of non-inoculated seedling on drought stress was solely by tolerance mechanism, either osmoregulation as shown by higher production level of osmoticum components or cell turgor regulation by leaf ABA accumulation. On the inoculated seedlings, however, there were synergism between those two tolerance mechanism and escape mechanism. Two important escape mechanism were intensifying root system and decreasing transpiration surface of seedlings. Key words : oil palm, AMF, drought stress, adaptation mechanism

Type: Conference (Speech)
Subjects: S Agriculture > S Agriculture (General)
Depositing User: Kartika
Date Deposited: 22 Sep 2020 02:43
Last Modified: 22 Sep 2020 02:43
URI: https://repository.unja.ac.id/id/eprint/13850

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