Genetic Variability of Eggplant Germplasm Evaluated under Open Field and Glasshouse Cropping Conditions

Abstract

Knowledge of agro-morphological genetic variation and cropping conditions on vegetative and yield-related traits plays a significant role in varietal improvement and production of eggplant (Solanum melongena L.). Following this premise, the current study was conducted to critically asses the genetic variation of 29 eggplant accessions by using agro-morphological characterization evaluated under two cropping conditions, namely, glasshouse and open field. The experiments were laid out in randomized complete block design (RCBD) with three replications. Data on vegetative and yield characteristics were collected and subjected to analysis of variance (ANOVA) using SAS 9.4, while variance components were estimated manually. The results obtained from the analysis of variance indicated a highly significant difference (p ≤ 0.01) for all characteristics studied in both cropping conditions. The evaluated accessions were grouped into six major clusters based on agro-morphological traits using Unweighted Pair Group Method with Arithmetic mean (UPGMA) dendrogram. Hence, crosses between group I with VI or V could be used to attain higher heterosis and vigor among the accessions. Also, this evaluation could be used as a selection criterion for important yield agronomic traits in eggplant. The methodology and the approaches used may provide a model for the enhancement of other vegetable crop diversity towards adaptability to the cropping condition decision. This result displayed importance for preserving eggplant germplasm for future varietal development and revealed that open field cropping condition is more suitable under Malaysia’s agroecology.

Effects of Grafting on Morphophysiological and Yield Characteristic of Eggplant (Solanum melongena L.) Grafted onto Wild Relative Rootstocks

“…Wide fruits have been reported for eggplant Epic grafted on to Beaufort [22], while cucumber Hady scion grafted onto Ferro rootstocks gave the highest value for this trait [23]. Fruit shape in eggplant has high heritability [1], and rootstocks influence fruit length and fruit diameter, possibly due to changes in the concentration of growth regulators induced by the rootstock.…”

“…It differs in colour, shape and fruit size. The most widely cultivated type is the purple cultivars [1]. The colour depends on content of anthocyanins present in the fruit skin.…”

“…Hence, vegetable grafting onto resistant rootstocks is a tool for the improvement of susceptible high-yielding scion against biotic and abiotic stresses [3]. Despite the comparatively high cost of grafted plants resulting from the higher labour and production input compared to normal (un-grafted) plants, grafting has developed into a specific cultural practice that helps to increased yield and production output and improves economic viability in sustainable vegetable production under both open field and glasshouse conditions [1].…”

WITHDRAWN: Bioengineering of Neem Colloidal Nano-Emulsion Formulation With Adjuvant for Better Surface Adhesion and Long Term Activity in Insect Control

“…Eggplant (Solanum melongena L.) is one of the important vegetable crop in South and South-East Asia 1 with 37% of the total cultivated area, and 53.31 million tons) production (worldwide (FAOSTAT, 2016). Major insect pests of eggplant are shoot and fruit borer (Leucinodesorbonalis Lepidoptera: Pyralidae), leafhopper (Amrascabiguttulabiguttula, Hemiptera, Cicadelloidea), white y (Bemiciatabaci,Hemiptera: Aleyrodidae), aphid (Aphis gossypii, Homoptera: Aphididae), thrips (Thripstabaci,Thysanoptera: Thripidae), etc 2 .…”

Evaluation of Yield and Yield Components of Eggplant (Solanum melongena L.) Genotypes in the Terai Region of Nepal

“…The results are in concordance with those of Jirankali et al (2019) and Praneetha (2002) who observed variation among eggplant genotypes for marketable fruit yield. Eggplant germplasms have large genetic variation for agro-morphological characteristics including vegetative, yield, and yield components among the 29 accessions (Sulaiman et al, 2020). The adjusted fruit yield was found the highest in Parwanipur…”