Kesan interaksi mikoriza vesikular-arbuskular (MVA);· paras berbeza vermikas dan baja kimia terhadap pertumbuhan 3 varieti cili (capsicum annum L.) tempatan
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Date
2008-10
Authors
Lob, Suhaizan
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Abstract
This research studied the effects of utilizing Vasicular-Arbuscular Mycorrhiza (VAM),
different levels of vermicast and chemical fertilizer on the physical growth, nutrient status,
chlorophyll content, percentages of VAM infection and mycorhizosphere microorganism
population on three different varieties of chilly, MC11, MC12 and MP. All varieties were
treated with or without VAM, with three levels of vermicast (0%, 5% and 10%) and
chemical fertilizer (0%, 50% and 100%). Parameters measured were plant height, total leaf
number, fresh weight and yield (manual method), nutrient content; N (Kjeldahl method), P . . .• .. ,,.. . . .,. . .~.,
(Yellow Vanado Molybdate· method); K, Ca, Mg, Na, Zn, Fe, Cu (nitric acid); chlorophyll
content (acetone solvent); percentages of VAM infection (Grid method) and microbial
analysis (CFU). For chilly variety MC11, treatment with 10% vermicast and 100%
chemical fertilizer resulted in the maximum mean of height increment (65.11 em), total leaf
number (71), fresh weight (shoot weight: 145.76g; root weight: 80.65g), yield (186.80g)
and chlorophyll content (1.83mg/mg). Utilization of 5% or 10% vermicast resulted in the
highest tissue N, P, Fe and Zn content. Inoculation of VAM in combination with 5% or 10%
of vermicast resulted in the highest tissue K and Mg concentration. VAM infection and
mycorrhizosphere microbial population was higher with the application of 5% vermicast
and 100% chemical fertilizer. For chilly variety MC12, treatment with VAM, 5% or 10%
vermicast and 50% or 1 00% chemical fertilizer showed the maximum mean of height
increment (55.57cm), total leaf number (103), fresh weight (shoot weight: 138.29g; root
weight: 62.37g),' yield (85.78g) and chlorophyll content (1.83mg/mg). Treatment with 5%
and 10% vermicast resulted in the highest tissue P, Fe, Zn, Cu content, VAM infection and
mycorrhizosphere microbial population. However, inoculation with 50% chemical fertilizer
resulted in the highest N, K, Ca and Na content. For chilly variety MP, treatment with 10%
vermicast showed maximum mean height increment (43.7cm), total leaf number (114),
fresh weight (shoot weight: 1 09.79g; root weight 47.35g) and yield (220.44g). Treatment
with vermicast resulted in the highest tissue K, Mg, Na, Cu, Zn, Fe and Ca content.
Utilization of vermicast and 50% chemical fertilizer significantly increased VAM infection
and mycorhizosphere microbial population. Overall, utilization of 5% or 10% vermicast was
shown to be capable in indusing high uptake of most plant nutrients thus resulting in good
plant growth and development. Utilization of vermicast has a potential for being adopted as
an alternative to the extensive use of chemical fertilizer in agriculture. It is more
environmentally friendly and cost effective.
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Keywords
Mikoriza vesikular-arbuskular (MVA , Baja kimia terhadap pertumbuhan 3 , Varieti cili (capsicum annum L.)