Resistance or Susceptibility, age of bearing and yield in young coconut palms in relation to development of root (wilt) disease
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1971-12
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Abstract
The probable presence of a heritable resistant factor against the root (wilt) disease in the healthy coconut palms (Cocas nucifera L.) occurring frequently among diseased palms was studied. Observations recorded from the progenies of crosses between such healthy palms raised in diseased tract revealed that possibly no resistant factor was present in them. Further observations indicated that (i) young coconut palms of 'West Coast Tall' variety are more susceptible to disease at the age of bearing, (ii) in the palms which contracted the disease before the commencement of bearing, the bearing age was often delayed indefinitely, and (iii) in the young palms that became diseased before the commencement of bearing, die yield was drastically affected when compared with the yield of those that were diseased after the commencement of bearing.
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Indian.J.agric.Sci.41(12): 1107-1109,December 1971