Seed production potential of bell pepper (Capsicum annuum) under protected and open conditions in Indo-Gangetic plains of northern India

RAMPREET  KAUR; RAJINDER  SINGH; LAVANYA  VIJ; NAVJYOT  KAUR

doi:10.56093/ijas.v95i6.152853

Authors

RAMPREET KAUR Punjab Agricultural University, Ludhiana, Punjab 141 027, India
RAJINDER SINGH Punjab Agricultural University, Ludhiana, Punjab 141 027, India
LAVANYA VIJ Punjab Agricultural University, Ludhiana, Punjab 141 027, India
NAVJYOT KAUR Punjab Agricultural University, Ludhiana, Punjab 141 027, India

https://doi.org/10.56093/ijas.v95i6.152853

Keywords:

Bell pepper, Pollen viability, Stigma receptivity, Vigour index

Abstract

Bell pepper (Capsicum annuum L. var. Grossum Sendt.) crop is sensitive to frost and high temperature. High temperature above 35°C during April-May in northern plains of India causes poor fruit and seed set under open conditions. The present study was carried out during winter (rabi) seasons of 2019–20 and 2020–21 at Punjab Agricultural University, Ludhiana, Punjab to analyze the seed production potential of the bell pepper variety PSM-1 under protected and open conditions. The investigation was laid out in a split-plot design (SPD) with main plot of two environments [polyhouse (E₁) and low tunnel (E₂)] and subplots of three different transplanting dates [the second week of November (D₁), December (D₂) and February (D₃)]. Being thermosensitive in nature, protected cultivation resulted in the production of significantly larger bell pepper fruits with concomitant enhancement in seed quality. Despite the initial high monetary investment, polyhouses proved to be more conducive for bell pepper growth, fruit, and seed production among protected structures, resulting in a higher yield and improved quality of fruits and seeds. November transplanted crop in the polyhouse took the highest number of days to flower initiation and fruit harvest consuming the highest heat units, resulting in the better plant growth, seed quality and yield contributing traits, viz. number of fruits/plant, fruit yield/ plant, average fruit weight, seed weight/fruit, 1000-seed weight, seed yield, germination and SVI-I providing maximum net returns to the farmers. For low tunnel cultivation setting, December transplanted plants recorded the best performance in terms of plant growth, seed yield and seed quality traits.

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