Hybrid in Pigeonpea (Cajanus Cajan L. Millsp.)

ISBN-13: 9783659683916 / Angielski / Miękka / 2017 / 104 str.

Sudhir Kumar

Opis

An investigation was carried out at ICRISAT, Patancheru, 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.

O autorze

Mr. Sudhir Kumar received his master in agriculture from Bihar Agricultural University, Sabour, Bihar (813210), India in 2014 and he complete their research work from ICRISAT, patancheru,India. Presently, He is pursuing their Ph.D. from Bihar Agricultural University., Sabour in department of Plant Breeding & Genetics.