Identification of Fertility Restorers and Maintainers in Pigeonpea [Cajanus cajan (L.) Millspaugh]

Kumar, Sudhir (2014) Identification of Fertility Restorers and Maintainers in Pigeonpea [Cajanus cajan (L.) Millspaugh]. Masters thesis, Bihar Agricultural University, Sabour, Bihar.

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Supervisors NameSupervisors ID
Sharma, R NBAU (Sabour)
Singh, P KBAU (Sabour)
Kumar, C V SICRISAT (Patancheru)
Sultana, RBAU (Sabour)
Bhagat, A PBAU (Sabour)
Jha, R NBAU (Sabour)
Patel, V BBAU (Sabour)


An investigation was carried out at ICRISAT, Patancheru, Hyderabad, during kharif season of 2013-14 to study identification of the fertility restorers (R-line) and maintainers (B-line) in pigeonpea [Cajanus cajan (L.) Millsp.] genotypes and standard heterosis in pigeonpea hybrids. A total of 20 hybrids were generated by hand pollinating five CMS-lines with 11 male lines from diverse sources during 2012-13 kharif season. In kharif 2012-13 also study was done for effectiveness of these five CMS lines. The study confirmed the existence of high level of male sterility (99.60 to 95.69%) in all five CMS lines used in crossing programme. The studies on fertility restoring capacity of 11 male lines on these five CMS lines were ranged from 59.22 to 98.50% and ICPL 87119 was one of the best restorer. Among 22 genotypes, ICPA 2043 x ICPL 87119 required minimum number of days to 50% flowering and it was significantly earlier over mean performance and check Asha. Pigeonpea is a considered as quantitative short-day flowering plant i.e., onset of flowering is hastened as the day-length reduces. Moreover, both low and high temperature may also delay flowering in pigeonpea. Out of 22 genotypes, check Maruti was the earliest to mature, while ICPA 2048 x ICPL 20093 exhibited maximum number of days to mature. All the hybrids were taller than both the checks (Asha and Maruti) except ICPA 2078 x ICPL 87119. Most of the hybrids were showed high number of primary and secondary branches per plant with respect to check Asha. Among the hybrids, ICPA 2092 x ICPL 20108 had the highest number of pods plant-1. Including 22 genotypes, all hybrids showed higher mean performance for number of sees pod-1 over checks Maruti and Asha. Most of the hybrids performed good for 100 seed weight and Seed yield plant-1. In this study, positive heterosis for grain yield plant-1 was noticed which may be attributed to one or more yield components. For grain yield plant-1, 18 hybrids showed significant positive standard heterosis over Maruti and eight hybrids showed significant positive standard heterosis over Asha

Item Type: Thesis (Masters)
Divisions: RP-Grain Legumes
CRP: CGIAR Research Program on Grain Legumes
Uncontrolled Keywords: Pigeonpea, Fertility, Drought tolerant crop, Hybrids, Pollen sterility phenotype
Subjects: Mandate crops > Pigeonpea
Others > Genetics and Genomics
Depositing User: Ms. Ishrath Durafsha
Date Deposited: 29 Jan 2015 04:17
Last Modified: 18 Nov 2015 10:46
Acknowledgement: UNSPECIFIED
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