Study of Heterosis in Alkaline Tolerant, Saline Tolerant and Long Grained Rice (Oryza sativa L.) Genotypes under Sodic Soil

An experiment was conducted to study heterobeltiosis (HB) and standard heterosis (SH) against saline check (CSR43) and alkaline check (USAR3) on 36 crosses, obtained from a crossing program in 15 rice genotypes (saline soil tolerant, ST, alkaline soil tolerant, AT and long grained, LG), following Li...

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Bibliographic Details
Published inEnvironment and ecology Vol. 40; no. 4C; p. 2690
Main Authors Singh, Snehansu, Mohan, Shiva, Sharma, Aarti, Kumar, Veerendra, Verma, O P
Format Journal Article
LanguageEnglish
Published Kalyani MKK Publications 01.10.2022
Subjects
Alkaline soils
Genetics
Genotypes
Heterosis
Oryza sativa
Plant breeding
Rice
Saline soils
Sodic soils
Soil conditions
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Summary:An experiment was conducted to study heterobeltiosis (HB) and standard heterosis (SH) against saline check (CSR43) and alkaline check (USAR3) on 36 crosses, obtained from a crossing program in 15 rice genotypes (saline soil tolerant, ST, alkaline soil tolerant, AT and long grained, LG), following Line x Tester mating design; with the main objective to divulge the potential of F1 s under soil conditions of Genetics and Plant Breeding Department Research Farm at ANDUAT, Ayodhaya UP. In way to study the F1 AT, ST x ST, AT x ST, ST x AT, LG x AT and LG x ST. The results indicated considerable amount of HB and SH for all the yield and yield attributing traits in aforementioned six types of crosses, except in ST x ST types which did not show significant positive heterosis for yield per plant trait either for HB or SH (against both saline and alkaline checks). For yield per plant traits, cross IR 71895-3 x AGAMI MI; a LG X ST type of cross showed highest SH against both saline and alkaline checks. Cross NDRK 5012 x FL 478, a AT x ST type of cross showed highest significant value for HB. s based on types of parents involved in the cross; the 36 crosses were divided into six different types based on viz., AT x
ISSN:0970-0420