ROOT DISTRI BUTION PATTERN OF PALMYRAH (Borassus flabellifer L.) IN RED SANDY SOILS OF EAST GODAVARI DISTRICT OF ANDHRAPRADESH
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Date
2016
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Abstract
The rooting pattern in palmyrah varies with the age of the palm. No studies were carried out to know the root distribution
pattern in palmyrah under any kind of soil conditions. Therefore this study was undertaken to know the rooting pattern of
different aged palms. In five year old trees the roots were spread to a distance up 120 cm from the bole and to a depth of
90 cm from the surface. All the roots were found at a depth of 30-90cm and no root growth was observed at the top 30 cm
portion. In ten year old trees the roots were spread to a distance up to 180 cm from the bole and to a depth of 120 cm
from the surface. Almost 80% of roots were confined to a distance of 30 cm from the bole. Over 60 % of the root growth
was found between 30-60 cm depth near the bole. The roots of 20 year old trees were spread to a distance up 150 cm
from the bole. 62.4 % of roots were observed up to the 60 cm distance, 35 % roots were found between 60 to 90 cm
distance and only 10 % roots have spread beyond 90 cm distance from the bole. 80% of roots are confined to a depth
range of 30 to 90 cm from the soil surface adjascent to the bole. 11 to 14% of roots were observed at a depth between 90
to 150 cm and most of them observed from 30 to 90cm distance from the bole. Less than 10% roots were found on the
top 30 cm depth from the soil surface which could spread only to a distance of 30 cm.
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Keywords
Palmyrah, root distribution, red sandy soils
Citation
Progressive Research – An International Journal ,Volume 11 (Special-IX) : 6093-6095 (2016)