A ‘2^7Confounded design' for a manurial experiment on coconut
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Date
1969-04
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Abstract
A mioronutriont-manurial experiment on a factorial 2^7 confounded design was started in 1053 on a 8-hoctaro coconut plantation at the Central Coconut Research Station, Kayangu-lam, Kerala State as an attempt to control the Root (wilt) disease affecting the palms. The micro-nutrients tried were Boron, Copper, Manganese, Iron, Molybdenum, Zinc, as well as Magnesium. Data on the fruit-yield and other morphological characters were recorded on the 384 experimental palms from the inception of the experiment. The fruit-yield data alone upto and inclusive of 1000 were considered for the Analysis of Covariance and the results reported. After 1000, the micro-nutrients were administered directly into the palms in liquid form by a different method. Results of analysis have revealed that the healthy palms did not show any significant response to the application of any of the micro-nutrients. But palms in the early satge of the root (wilt) discard res ponded favourably to the treatment combination of Boron and Iron. However, when applied alone or in combination with Copper, Iron depressed the nut-yield in this category of palms significantly. Severely diseased palms responded very favourably with Magnesium and Molybdenum when applied individually.
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manurial experiment-coconut,
Citation
The Indian Journal of Statistics, Series B,Vol.31,Parts 1&2,1969