Formerly International Journal of Basic and Applied Agricultural Research

Studies on sucker control in natu tobacco (Nicotiana tabacum L.) under rainfed vertisols

S. JAFFAR BASHA, P. PULLI BAI, S. KASTURI KRISHNA and C. CHANDRASEKHARA RAO
Pantnagar Journal of Research, Volume - 18, Issue - 3 ( September-December, 2020)

Published: 2020-12-31

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Abstract


A field experiment was undertaken at Regional Agriculture Research Station, Nandyal, Andhra Pradesh for two consecutive years viz., 2018-19 and 2019-20 on rainfed vertisols to evaluate the suitable and economical method of sucker control in natu tobacco for higher cured leaf yield, leaf quality and net income. The treatments consisted of two topping stages as first factor and four sucker control methods as second factor in factorial randomized block design with three replications. The data pooled over two seasons revealed that topping stage did not significantly influence data on ground as well as auxillary suckers per plant. Significantly lower number of ground suckers per plant (1.7), fresh weight of ground suckers per plant (24.3 g), dry weight of ground suckers per plant (5.0 g), number of auxillary suckers per plant (2.5), fresh weight of ground suckers per plant (20.6 g), dry weight of ground suckers per plant (3.6 g), higher leaf length (53.7 cm), leaf width (18.3 cm), leaf area index (1.35), cured leaf yield (2213 kg ha-1), net returns (Rs 90,717 ha-1) with BCR of 2.70 were observed with application of fatty alcohol @ 5 %. Interaction of application of fatty alcohol @ 5 % at flowering stage recorded higher cured leaf yield (2282 kg ha-1). Different treatments did not influence leaf chemical constituents (nicotine, reducing sugars and chlorides) and are in permissible limits.


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