Yield variations caused by cultivar, season and population density of Sesamum indicum L.
1987
Narayan, V. | Narayanan, A. (Andhra Pradesh Agricultural Univ., Bapatla (India). Agricultural Coll.)
A field experiment was conducted to study the yield variations caused by six cultivars (Patan-64, Madhavi, Gowri, NP-6, T-12 and TMV-3) of sesame (Sesamum indicum L.) at three population densities (16,33 and 66 plants m-2) and in three seasons (post-monsoon, summer and monsoon) during 1979-1980. The increase in yield thus caused was mainly due to the number of plants per unit area rather than the branches. The yield contribution by main stem increased in oil content due to high population density. Grain yield in summer was maximum followed by post-monsoon and monsoon seasons. The capsule size was significantly bigger during summer season which was owing to the higher number of seeds per capsule. The Hi was also higher during this season. The low temperature and short photoperiod of the post-monsoon season were the main factors for suppression of branches, number of seeds per capsule and test weight. The waterlogging due to heavy rain during the monsoon season had reduced the fruiting length of axes consequently the grain yield. However, seasons did not influence the oil content of seeds
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