Genetic Variability, Correlation and Path Coefficient Analysis in Advanced Matromorphic Generations of Garden Pea (Pisum sativum L.)

IF 0.8 4区生物学 Q3 AGRONOMY

Legume Research Pub Date : 2023-08-23 DOI:10.18805/lr-5128

Sonali Sharma, Anil Bhushan, R.K. Samnotra, Bupesh Kumar, Owais Ali Wani, Reshav Naik, Manoj Kumar

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Abstract

Background: Garden pea is an important leguminous vegetable crop but the lack of high yielding and stable varieties is the major constraint. There is a need to explore genetic variability for the crop improvement programs. Considering this, the current investigation was aimed to study the genetic variability and relationship among the yield and its contributing traits in advanced matromorphic progenies for effective production. Methods: A two year experiment was carried out at SKUAST- Chatha, Jammu during the cropping season of 2020-21 and 2021-22 to find out the genetic variability parameters, path coefficient and correlation studies for thirteen yield contributing traits in twenty two garden pea genotypes (twelve advanced matromorphic progenies and ten parental lines). Result: The results revealed high variability among the tested genotypes. The values of phenotypic coefficient of variation (PCV) were greater as compared to the genotypic coefficient of variation (GCV) for all the traits. High heritability along with genetic advance ( greater than 20%) was observed for all the traits whereas pod length (PL) and shelling percentage (SP) were exceptions. Pod yield per plant ( PYPP) had positive genotypic and phenotypic correlation with node at which first flower appears (NFFA), plant height(PH), internodal distance (ID), no. of pods per node (NPPN), pod length (PL), no. of seeds per pod(NSPP), no. of pods per plant (NPP), days to first picking (DFF), average pod weight (APW) and shelling percentage (SP). Positive direct effect on pod yield per plant (PYPP) was exhibited by traits viz., days to 50 per cent flowering (DFPF), node at which first flower appears (NFFA), internodal distance (ID), no. of pods per node (NPPN), pod width (PW), no. of seeds per pod (NSPP), no. of pods per plant (NPPP), days to first picking (DFP) and average pod weight (APW) in path coefficient analysis.

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豌豆高级原形世代遗传变异、相关及通径分析

背景:豌豆是重要的豆科蔬菜作物，但缺乏高产稳定的品种是制约其发展的主要因素。有必要探索作物改良计划的遗传变异。因此，本研究的目的是研究高级原态后代的遗传变异性以及产量及其相关性状之间的关系，以达到有效生产的目的。方法:于2020-21和2021-22种植季在查谟查塔进行为期2年的试验，对22个豌豆基因型(12个高级原态后代和10个亲本系)的13个产量贡献性状进行遗传变异参数、通径系数和相关研究。结果:结果显示在测试的基因型之间有很高的变异性。各性状表型变异系数(PCV)均大于基因型变异系数(GCV)。除荚长(PL)和脱壳率(SP)外，所有性状均具有较高的遗传率和遗传进阶性(大于20%)。单株荚果产量(PYPP)与首花出现节数(NFFA)、株高(PH)、节间距离(ID)、株高(PH)、籽粒数(n)和籽粒数(n)均呈显著正相关。每节点荚果数(NPPN)，荚果长度(PL);每荚种子数(NSPP);单株荚果数(NPP)、首采天数(DFF)、平均荚果重(APW)和脱壳率(SP)。开花至50%天数(DFPF)、首花节点(NFFA)、节间距离(ID)、结数(n)、结数(n)等性状对单株荚果产量(PYPP)有直接正向影响。每节荚果数(NPPN)、荚果宽度(PW)、每荚种子数(NSPP);通径系数分析中单株荚果数(NPPP)、首采天数(DFP)和平均荚果重(APW)。

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来源期刊

Legume Research AGRONOMY-

CiteScore

1.30

自引率

37.50%

发文量

256

审稿时长

6-12 weeks

期刊介绍： Legume Research An International Journal. The Journal is an official publication of Agricultural Research Communication Centre. It is designed to bring out the original research articles on genetics, breeding, physiology, bacterial avtivity, production, quality, biochemistry and seeds of legumes crops. The objective of the journal is to serve as a forum for scientific community to publish their research findings on legumes ans to provide basis for new research. Journal is being scanned in the important indexing and abstracting services.