Genetic Variability, Character Association and Path Analysis of Seed Yield and Its Contributing Traits in Field pea (Pisum sativum L. var. arvense)

Abstract

One hundred twenty field pea (Pisum sativum L. var. arvense) genotypes were evaluated with four check varieties viz., Ambika, Rachna, HFP 8909 and HUDP 15 to assess the genetic variability, association of different yield traits and direct & indirect effects of these traits on seed yield. Analysis of variance (ANOVA) revealed significant differences among all the genotypes for majority of the traits except number of primary branches per plant. The genotypes showed moderate to high level of genotypic coefficient of variance (GCV) and phenotypic coefficient of variance (PCV). The magnitudes of phenotypic coefficient of variance (PCV) for all the characters were slightly higher than their corresponding genotypic coefficient of variance (GCV), indicated very less environmental influence on the expression of the characters. Higher estimate of GCV (30.414) was recorded for number of seeds per pod followed by seed yield per plant (28.874). Correlation analysis indicated that seed yield per plant exhibited highly significant and positive correlation with harvest index, seeds per pod, pod length and 100-seed weight. Path analysis indicated that the highest positive and direct effect on seed yield per plant was exerted by harvest index and seeds per pod. Highly positive indirect effect on seed yield per plant was exerted by harvest index via seeds per pod, pod length and biological yield per plant. The characters identified above as important direct and indirect yield components can be used in formulation of selection strategy in field pea for selection of high yielding genotypes.

Assessment of Genetic Variability and Relationship between Different Quantitative Traits in Field Pea (Pisum sativum var. arvense) Germplasm

“…However, the least difference between PCV and GCV was observed for days to maturity and 50% flowering, which indicated the least impact of environment on the expression of these traits. These findings are in accordance with Lal et al (2018).…”

“…Whereas, seed yield plant -1 was non-significant and negatively associated with days to 50% flowering and maturity. Similar findings for seed yield with one or more of the above traits has also reported by Lal et al (2018) and Kumawat et al (2018).…”

“…This clearly illustrates the fact that the change in each of the above characters will directly contribute to the yield of the crop. Similarly finding for above traits have been reported by Tofiq et al (2015), Lal et al (2018) and Ton et al (2018). However, other characters contributing substantially positive direct effect on seed yield were seeds pod -1 , effective nodes plant -1 , 100-seed weight and days to 50% flowering.…”

Correlation Coefficient and Path Analysis in Table Pea (Pisum sativumvar. Hortense L.)

“…This designated a strong genetic association between the traits and the phenotypic expression which was suppressed due to environmental influence. Similar findings had also been reported by Davi et al [8], Singh et al [9] and Lal et al [10]. In the present study, the correlation coefficient was estimated between nine characters.…”

Determination of Some Yield and Morphological Characteristics of Some Forage Pea (Pisum sativum ssp. arvense L.) Genotypes in Bingol Ecological Conditions

“…Uygun dönemde biçildiğinde yem bezelyesinin kuru otunda yaklaşık %20, tanelerinde de %20-30 oranında ham protein bulunmaktadır. Yem bezelyesi bitkisinden yem olarak hem yeşil taneleri hem kuru otundan faydalandığımız gibi meralarda da yeşil yem bitkisi ve toprağın azot oranını yükseltme amacıyla yeşil gübre bitkisi olarak da değerlendirilmektedir (Özkaynak 1980;Açıkgöz 2001 Gündüz (2013) bitkide bakla sayısını 2.67-39.50 adet, bitki boyunu 20.40-65.60 cm, tane verimini 3.0-93.50 g/m 2 , baklada tohum sayısını 4.0-6.88 adet, kes verimini 50.0-332.5 g/m 2 ve hasat indeksini %1.2-43.06 arasında; Varol (2016) bitki boyunu 34.7-120.7 cm, bitkide bakla sayısını 2.6-13.7 adet, 1000 tane ağırlığını 60.0-256.7 g, baklada tane sayısını 3.7-7.0 adet, tohum verimini 86.6-466.4 kg/da arasında; Kılınç (2017) bitki boyunu 50-145 cm, bitkide bakla sayısı 7-35 adet/bitki, baklada tane sayısı 3-11 adet/bakla, bin tane ağırlığı 128.39-243.82 g, dekara tane verimi 92.25-143.45 kg/da, hasat indeksini %53-73 arasında; Bhuvaneswari et al, (2016) bitkide bakla sayısını 1-6 adet, 100 tohum ağırlığını 11.07-27.32 g, bitki boyunu 30.4-86.4 cm arasında ve baklada tohum sayısını 3-6 adet; Karaköy ve ark., (2016) ortalama bitki boyunu 6.7 cm, bitkide bakla sayısı 28.6 adet, baklada tane sayısı 6.8 adet, 100 tane ağırlığını 11.4 g, tane verimini 132.8 kg/da; Kavut ve Çelen, (2017) bitkide bakla sayısını 8.2-9.2, baklada tane sayısı 4.9-5.7, bin tane ağırlığını 96.1-153.7 g, tohum verimini 95.6-309.8 kg/da arasında; Çaçan ve ark., (2018) kes verimini 160.3-887.0 kg/da, bin tane ağırlığını 99.1-150.2 g arasında; Kumar Singh et al, (2018) bezelye de bitki boyunu 33.98-160.13 cm, bitkide bakla sayısını 5.82-30.42, baklada tohum sayısını 3.01-6.47, 100 tohum ağırlığını 11.18-31.43 g, bitkide biyolojik verimini 15.39-42.53 g, bitkide tohum verimini 1.16-23.61 g, hasat indeksini %23.45-60.00 arasında; Lal et al, (2018) /5-7-06 Vol.5, No.7, 2019 45 | P a g e www.iiste.org yetersiz (%0.26), tuzsuz (%0.0034), toprak pH'sı hafif bazik düzeyde (7.22), kireç ve potasyumu yetersiz (%0.55-22.52), fosfor içeriği ise yeterli (12.17 kg/da) düzeyde olduğu belirlenmiştir. Arazi çalışması, 2015 yılında derin sürümün ardından kültivatör ve tapan çekilen arazide yapılmıştır.…”