Planting ratio and plant growth regulators affecting seed quality in CGMS based chilli (Capsicum annuum) hybrid

Abstract

In the present study, the seed production was carried out during 2016 and 2017 in the newly released cytoplasmic genetic male sterility (CGMS) based chilli (Capsicum annuum) hybrid. The objective of this study was to enhance the seed quality for newly released hybrid using given treatments in the field. The experiment was conducted at the Department of Seed Science and Technology, University of Agricultural Sciences, Raichur, Karnataka in the laboratory and field conditions. Plant growth regulators (PGRs) target specific receptor molecules in the plant tissue that can certainly transform plant metabolism. Similarly adapting a specific ratio of female and male while planting can check yield and quality constraints in fruit and seed production. Henceforth treatments were decided keeping in view these points. It was found that planting ratio (2:1 was best) and PGR spray (NAA @40 ppm best) significantly promoted the seed quality parameters, viz. germination (%), seedling dry weight (mg), shoot length (cm), seedling vigour index, dehydrogenase enzyme activity and lowered the electrical conductivity (dS/cm) as compared to other treatments. Also, the treatment combination P2S4 (2:1 + NAA @40 ppm) proved to be the best for these seed quality parameters. Thus, the parental lines in 2:1 ratio proved to be best for natural crossing followed by spraying at flower initiation stage with NAA @40 ppm as PGR to obtain higher seed quality in CGMS based chilli hybrid UARChH42 (JCH42). Hence it may be recommended in seed production technology of this hybrid.

Spatial and Temporal Distribution of Nitrogen in Maize under Drip Fertigation

“…Further, loss of nutrients primarily as leaching was also minimized by using fertigation. These findings are in conformity with those reported by Sundar Raman et al El-Yazied et al [12], Hassanein et al [13], Kumar et al [14], Richa [15] and Padmaja et al [16], [17][18][19][20][21].…”

Capsicum annum L. Storability Vigor and Estimation of Its Genetic Parameters

“…Consequently, this research holds potential to contribute significantly to chili breeding programs aiming for enhanced storage capacity. The primary aim of this study is to develop a rapid aging test method capable of predicting the vigor of chili seeds during storage, which would be invaluable for improving chili seed storage capacity (Thakur et al, 2022). Therefore, the purpose of this study was to analyze the vigor of chili seeds and the estimation of their genetic parameters because the need for quality chili seeds is still lacking, the quality of the seeds decreases during storage so that the chili seeds that have the spirit high storage capacity is needed.…”