Growth, yield and quality of broccoli (Brassica oleracea var. italica) as influenced by nitrogen and plant population under different dates of sowing
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Date
2016
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Punjab Agricultural University, Ludhiana
Abstract
The investigation entitled ‘‘Growth, yield and quality of broccoli (Brassica oleracea var. italica) as influenced by nitrogen and plant population under different dates of sowing’’ was conducted at Department of Vegetable Science, Punjab Agricultural University, Ludhiana. The experiment was replicated thrice in split plot design during 2014-2015 and 2015-2016. It comprised three dates of sowing i.e. 15th September, 1st October and 15th October in main plot. There were nine sub plot treatment i.e. combination of three nitrogen (100, 125 and 150 kg/ha) and three spacings (45 × 45 cm, 60 × 45 cm and 60 ×30 cm). Present investigation revealed that sowing on 15th September, wider spacing of 60 × 45 cm and N @ 150 kg/ha recorded maximum number of leaves, leaf size, plant spread and glucosinolates. The average head size, weight of the head and weight of auxiliary sprouts were the highest in 1st October sowing, 60 × 45 cm and N @ 125 Kg/ha. Sowing on 1st October recorded the highest total yield of 172.62 q/ha and 180.67 q/ha, respectively in 2014-2015 and 2015-2016. Among plant population 45 cm × 45 cm planting distance recorded the highest total yield in both the years. Further N @ 125 kg/ha recorded maximum total yield. Whereas, interaction between different components were non significant for total yield. Thus, it is concluded from the study that sowing on 1st of October at plant spacing of 45 × 45 cm with the application of nitrogen @ 125 kg/ha is beneficial to increase the total yield of broccoli.
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economics, biological phenomena, resins, productivity, technological changes, exhibitions, developmental stages, marketing, biological development, selection