Variability studies in Intra specific crosses of Indian mustard [Brassica juncea (L.) Czern and Coss.] genotypes

Abstract

The genetic variability in intra specific crosses of Indian mustard Brassica juncea (L.) Czern and Coss.genotypes were evaluated during rabi 2009-10 to study the genetic variability, heritability and genetic advance as percentage of mean for nine quantitative characters viz. plant height (cm), number of siliquae per main branch, number of primary branches per plant, number of secondary branches per plant, length of siliquae (cm), number of seeds per siliqua and seed yield per plant (g), days to 50% flowering and days to maturity. Analysis of variance showed significant differences among the crosses for all characters under study except for length of siliqua. Maximum genotypic coefficient of variation (GCV) and phenotypic coefficient of variation (PCV) was exhibited by number of secondary branches per plant followed by seed yield per plant and number of primary branches per plant. High estimates of heritability coupled with high genetic advance as per cent of mean was observed for number of secondary branches per plant followed by seed yield per plant and number of primary branches per plant.

Breeding for Yellow Seeded Ethiopian Mustard (Brassica Carinata) With High Seed Yield and Oil Content at Holetta Agricultural Research Center, Ethiopia

“…High heritability along with high genetic advance as percent of mean was recorded by number of secondary branches/plant followed by yield/plot and number of pods/plant. Similar result was found by [15] in his study on B.juncea. Among the 64 genotypes, twelve genotypes were found to be having pure yellow seed colour.…”

Heterosis and Heterobeltiosis for Seed Yield and its Components in Indian Mustard (Brassica juncea L. Czern & Coss) under Normal (E1) and Moisture Stress (E2) Environments

“…This is in conformity with the findings obtained by Arrifullah et al, (2013), Kumar et al, (2014), Synrem et al, (2014) and Akabari et al, (2016).…”

Influence of morphological and reproductive characters on the yield of mustard/rapeseed

“…Reproductive efficiency (RE) was only positively associated with seed yield and siliqua number in B. napus. The above results are supported by many workers (Yadava et al, 2011;Hasan et al, 2014;Synrem et al, 2014).…”