Standard Heterosis for Grain Yield and its Attributing Traits in Early Maturing Maize Hybrids

Viqar-Un-Nisa .

Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, India.

Z. A. Dar

Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, India.

S. Naseer

Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, India.

M. H. Khan

Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, India.

A. A. Lone

Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, India.

M. A. Wani

Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, India.

M. A. Rather

Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, India.

A. M. I. Qureshi

Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, India.

Wajhat-Un-Nisa .

Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, India.

Bilal Ahmad Lone *

Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, India.

Aflaq Hamid

Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, India.

Gowher Ali

Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, India. b Chandigarh University, Chandigarh, India.

Asma Fayaz

Chandigarh University, Chandigarh, India.

S. Kumar

Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, India.

*Author to whom correspondence should be addressed.


Abstract

The present study was conducted at the research farm of Dryland Agriculture Research Station, SKUAST-Kashmir during the kharif of 2019. Range of heterosis was calculated over standard check. The most desirable cross combinations viz., KDM-440 x KDM-914A (-5.879), KDM-440 x V-335 (-4.468), KDM-930 x V-351(-4.165), KDM-927A x V-335 (-3.986), CML-470 x KDM-914A (-3.808) for days to maturity, KDM-347 x V-351 (4.967) CML-470 x KDM-914A (4.610), CML-474 × V-351(-4.396), KDM-927 A x V-351 (-3.110), KDM-930 x V 335 (2.896) for number of kernel rows per cob, KDM-347 x V-351(-7.544), KDM-440 x V-351 (6.438), KDM-916A x KDM-914 A(6.117), CML-470 × V-351(5.992), CML-474 x V-335 (5.274) for number of kernels per row, KDM-340 x V-351 (3.966), KDM340 x KDM-914A (3.150), KDM-930 x V-351(3.165), KDM-440 x KDM-914 (3.556), KDM-347 x V-351(3.324) for 100-grain weight, KDM-347 x V351 (34.197), KDM-440 x V335 (28.933), CML470 x KDM-914A (29.380), KDM-895 x KDM914A (25.383), KDM927A x KDM-914A (19.549) for grain yield per plant were observed in the present study. The range of heterosis  over  standard check for days to maturity from -3.796 (CML-425 × KDM-914A) to (2.414) CML-474 × KDM-914A. The extent of heterosis for number of kernel rows per ear over standard check ranged from CML-470 x V-335(28.576) to KDM-916A × V -335(-2.143), for quantity of kernels per row maximum well known heterosis ranged from CML-470 × V-351 (19.079) to KDM-347 × V-351 (-15.132), for 100- grain weight, heterosis ranged from 22.3% for CML-470 x KDM-914 A  to -3.5% for KDM-916A × V-335. For grain yield per plant, heterosis ranged from 61.9% for CML-470 x K DM-914 A to 9.3% for KDM916A x V-335. Standard  heterosis for crosses CML -470 × KDM-914 A, CML-474 × V-351, KDM-440 × V-335 should be tested for multilocation to make valid conclusion related to their use in commercial maize cultivation.

Keywords: Heterosis, hybrids, yield and yield attributes, early maturing, maize.


How to Cite

., Viqar-Un-Nisa, Z. A. Dar, S. Naseer, M. H. Khan, A. A. Lone, M. A. Wani, M. A. Rather, A. M. I. Qureshi, Wajhat-Un-Nisa ., Bilal Ahmad Lone, Aflaq Hamid, Gowher Ali, Asma Fayaz, and S. Kumar. 2021. “Standard Heterosis for Grain Yield and Its Attributing Traits in Early Maturing Maize Hybrids”. International Journal of Plant & Soil Science 33 (24):418-21. https://doi.org/10.9734/ijpss/2021/v33i2430796.