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Extent of heterosis in CMS based hybrids of Pigeonpea [Cajanus cajan (L.) Millsp.]

OAR@ICRISAT

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Relation http://oar.icrisat.org/10307/
 
Title Extent of heterosis in CMS based hybrids of Pigeonpea [Cajanus cajan (L.) Millsp.]
 
Creator Mohan, N
Galian, J L
Babu, J D P
Sameer Kumar, C V
Rao, V S
 
Subject Pigeonpea
 
Description Endowed with several unique characteristics, pigeonpea [Cajanus
cajan (L.) Millsp.] holds a prominent position in farm
households of semi-arid and arid regions of the world. With
the advent of hybrid pigeonpea technology, pigeonpea, once
designated as orphan crop, has grown in importance as a commercial
crop. Thus, development of more number of quality
hybrid varieties has become imperative to meet the future demand.
The present study was taken up to elicit the information
on magnitude of the genetic variability, heritability, genetic
advance as percent of mean, extent of fertility restoration
and heterosis in newly developed CMS based pigeonpea hybrids.
Twenty four pigeonpea hybrids along with four checks
viz., Asha, Maruti, LRG 41 and BDN 711, were evaluated in kharif
2015 at ICRISAT, Patancheru. Analysis of variance showed
significant differences among the hybrids for all the characters
studied. High genetic variability coupled with high heritability
and genetic advance as percent of mean were recorded for
number of primary branches, number of secondary branches
and pollen fertility percent. Fertility restoration studies showed
that 15 out of 24 hybrids recorded high (>80 %) pollen fertility
and exhibited better fertility restoration. High levels of heterosis
i.e. over 50% in traits like number of pods per plant, pod
weight per plant and grain yield per plant. were also recorded.
ICPH 3762 and ICPH 4502, with high per se performance and
high standard heterosis for grain yield per plant and for majority
of yield attributes, were identified as promising hybrids.
 
Date 2017-02
 
Type Conference or Workshop Item
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/10307/1/Abstract_Book_406b.pdf
Mohan, N and Galian, J L and Babu, J D P and Sameer Kumar, C V and Rao, V S (2017) Extent of heterosis in CMS based hybrids of Pigeonpea [Cajanus cajan (L.) Millsp.]. In: InterDrought-V, February 21-25, 2017, Hyderabad, India.