Vol. 9 (6) : November-December 2018 issue
Green Farming Vol. 9 (6) : 939-943 ; November-December, 2018
Heterosis analysis for pod yield and its components in vegetable Indian bean (Dolichos lablab L.)
ADITI D. PATELa1*, C.G. INTWALAb2, KANAK BHATIa3 and V.A. LODAMb4
aDepartment of Genetics and Plant Breeding, N.M. College of Agriculture, NAU,
bPulses & Castor Research Station & Mega Seed Unit, Navsari Agricultural University, Navsari - 396 450 (Gujarat)
Designation : 1P.G. Student *(pateladi59@gmail.com), 2Associate Research Scientist,
3P.G. Student, 4Research Associate
Subject : Crop Genetics and Plant Breeding
Paper No. : P-7489
Total Pages : 5
Received : 23 November 2018
Revised accepted : 03 December 2018
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Citation :
ADITI D. PATEL, C.G. INTWALA, KANAK BHATI and V.A. LODAM. 2018. Heterosis analysis for pod yield and its components in vegetable Indian bean (Dolichos lablab L.). Green Farming Vol. 9 (6) : 939-943 ; November-December, 2018
ABSTRACT
The nature and magnitude of heterosis for yield and its component traits were studied in Indian bean using diallel analysis. Significant differences were observed among parents and hybrids indicating considerable genetic differences among selected genotypes for 13 different traits. Among the parents, NI-08-225 was found promising for days to 50 per cent flowering, branches per plant, seeds per pod, pod yield per plant, average pod weight and protein content. Parent NI-13-465 depicted highest mean values in desirable directions for plant height and pod length. The highest mean value for pods per plant was observed in NI-06-68. Significant to highly significant positive heterobeltiosis as well as standard heterosis for yield and its contributing traits in the crosses involving elite lines as the parents suggested that there is a good scope of exploiting heterosis commercially and also possibility of isolating desirable segregants. Top seven ranking cross combinations viz., NI-13-465 x NI-08-203, NI-06-68 x NI-13-465, NI-06-68 x NI-05-19, NI-06-68 x NI-08-225, NI-05-19 x NI-08-225, NI-06-68 x NI-08-203 and NI-05-19 x NI-13-465 showed high standard heterosis while NI-06-68 x NI-05-19, NI-13-465 x NI-08-203 and NI-06-68 x NI-13-465 showed high heterobeltiosis in positive direction for pod yield.
Key words :
Heterosis, Heterobeltiosis, Indian bean, Yield attributes.
