Showing 2 results for Mulberry
Z. Karimian, A. Tehranifar, M. Bannayan, M. Azizi, F. Kazemi,
Volume 4, Issue 14 (3-2015)
Abstract
Determination of growth rate and planting space of trees in urban spaces is needed for the planting design programs and land scape management. To determine the growth rate of two tree species, Chinaberry (Melia azedarach) and Mulberry (Morus alba), data was collected on different dimensions of these trees including, tree height, tree crown height and tree crown diameter at various ages at Pardis campus of Ferdowsi University of Mashhad during their growth. Regression analysis of these dimensions as a dependent variable and age as an independent variable produced different models that can be used for estimating the growth of the measured dimensions of these two species. The results showed that the highest regression coefficient among the models was linear, polynomial and exponential function, but logarithmic types were selected as the most acceptable model for estimating the growth of measured dimensions in the two tree species of Chinaberry (tree height with r2=0.87, crown height with r2=0.67, crown diameter with r2=0.67) and Mulberry (total height with r2=0.60, crown height with r2=0.40, crown diameter with r2=0.65). Also, in both species, the most increase in growth rate of measured dimensions for the 15 years old trees was found in crown diameter.
K. Etebari, M. Fazilati,
Volume 7, Issue 1 (4-2003)
Abstract
In order to investigate the effects of mineral compounds as complementary nutrients for silkworm, Bombyx mori, an experiment was performed in CRD with five treatments including: 1%, 5% and10% concentrations of multi-mineral mixtures (nitrogen, phosphorus and potassium) with normal and distilled water treatments as controls. The larvae were fed by mulberry leaves from Shien Ichenoise variety up to the fourth instar. From the beginning of the fourth instar, the supplementary leaves were used once a day. The supplementation of the leaves was done by spraying the solution on them. The amount of total protein and uric acid in haemolymph of a 6-day 5th instar larva was measured. The value of total protein compared to controls had significantly increased in all mineral treatments. The larvae's weight on the third day of the fifth instar had significant difference from controls, but the weight of silk gland did not show such a difference. However, uric acid of insect's blood demonstrated little differences but it showed no statistical significant differences from that in controlled insects. Despite this, the weight of cocoon, cocoon shell and pupa also had significant differences compared to controls, where this enhancement was higher in females than in males. Due to increase of the number of eggs, statistically there was a significant difference between the 10% treatment and others. The compounds had decreased the hatching percentage.
