초록

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Abstract ▼ AI-Helper

This experiment was conducted to investigate the effects of planting density on the growth characteristics and root yield of Achyranthes japonica N. from 1995 to 1996. Stem diameter, no. of branch and fresh weight of above-ground parts per plant were reduced by increasing the planting density, but s...

This experiment was conducted to investigate the effects of planting density on the growth characteristics and root yield of Achyranthes japonica N. from 1995 to 1996. Stem diameter, no. of branch and fresh weight of above-ground parts per plant were reduced by increasing the planting density, but stem length, length and diameter of main root increased at high density, $25{\times}5cm$. The heighest percent of large roots was 71 % at $25{\times}5cm$ planting density. The dry root yield per 10a at $25{\times}5cm$ planting density was 7% higher than 306kg of $20{\times}5cm$ planting density, but root yields were lower in other planting density compared to $25{\times}5cm$ planting density. The root dry weight showed negative correlation with stem diameter, no. of branch and fresh weight of above-ground parts per plant but showed positive correlation with stem length, length and diameter of main root.

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