Thirty two rice (Oryza sativa L.) hybrids involving four TGMS (Thermo Sensitive Gene Male Sterile... more Thirty two rice (Oryza sativa L.) hybrids involving four TGMS (Thermo Sensitive Gene Male Sterile) lines and eight testers were evaluated for combining ability and heterosis. Among the parents, the TGMS lines viz., GO 98049 and GO 98014, and the testers CB 97033 and IR 72 were the best based on the mean and gea effects. Considering the mean performance, sea effects and standard heterosis, six hybrids viz., GO 98013/CB 97033, GO 98013/CO 47, GO 98014/AOT 45, GO 98014/PMK 2, GO 98049/AOT 39 and GO 98049/CB 97033 were superior for grain yield and kernel quality traits and recommended for further evaluation.
Diallel analysis was carried out in three different environments namely, managed stress, rainfed ... more Diallel analysis was carried out in three different environments namely, managed stress, rainfed and dry conditions to study thecombining ability and heterosis for 13 yield and drought tolerant traits. Evaluation of parents based on per se and gca effects,the parents Nootripathu, Mattaikar, Vellaichithiraikar, PMK 3 and NPT 107 were identified as the best genotypes forimprovement of yield combined with drought tolerance . The hybrids viz., NPT 107 / MDU 5 for rainfed and dry condition andNPT 107 / Nootripathu for managed stress condition were observed to have parallelism between desirable mean, sca effects andstandard heterosis for most of the drought tolerant traits besides grain yield and hence these hybrids were recommended forcommercial exploitation of heterosis. The hybrids obtained by crossing the good general combiners viz., For the crosses ofgood general combiners viz., PMK 3 / Vellaichithiraikar, PMK 3 / Nootripathu and Vellaichithiraikar / Nootripathu, can berecommended fo...
Cotton is an important fibre crop of the world and it is also a good source of oil and high quali... more Cotton is an important fibre crop of the world and it is also a good source of oil and high quality protein meal. Somatic embryogenesis in cotton plays a key role in cotton transformation. Somatic embryogenesis forms the basis of cellular totipotency in higher plants. Four cotton cultivars viz., MCU 5, MCU 12, MCU 13 and SVPR 2 along with two model varieties viz., Coker 310 and Coker 312 were used to assess the somatic embryogenic efficiency. Hypocotyl and cotyledonary leaves were used as explants for callus induction. Hypocotyl was found to be the best for in vitro study. Coker 312, MCU 13, Coker 310 and MCU 12 responded well for callus induction. Coker lines alone responded well for somatic embryogenesis. The best medium for proliferation of callus was standardized as MS + 0.1 mgl-1 2,4-D + 0.5 mgl-1 kinetin. Among the different combinations tried, MS + 1.9 gl-1 KNO 3 was found suitable for somatic embryogenesis. An efficient protocol for the production of high frequency of callus...
The present study has been formulated in rice (Oryza sativa L.) with four cultivars (NPT 107, PMK... more The present study has been formulated in rice (Oryza sativa L.) with four cultivars (NPT 107, PMK 3, MDU 5 and ASD 16) and four local land races (Vellaichithiraikar, Mattaikar, Nootripathu and Norungan) under three different environments viz managed stress (E 1), rainfed (E 2) and dry condition (E 3) to assess the stability of hybrids and parental genotypes. The AMMI 1 biplot for yield clearly indicated that the hybrids, PMK 3/ Mattaikar, PMK 3/ Norungan and MDU 5/ Mattaikar are stable and had general adaptability at all locations. NPT 107/ MDU 5, NPT 107/ Vellaichithiraikar, PMK 3/ MDU 5, PMK 3/ Vellaichithiraikar, MDU 5/ Norungan and Mattaikar/ Nootripathu were identified as specifically adapted to favorable locations. The hybrids NPT 107/ ASD 16, NPT 107/ Mattaikar, NPT 107/ Nootripathu, PMK 3/ ASD 16, PMK 3/ Nootripathu, ASD 16/ Vellaichithiraikar and Vellaichithiraikar/ Nootripathu were considered for dry condition (E 3). In AMMI 2 biplot, the genotypes Nootripathu, NPT 107/ AS...
Forty sesame (Sesamum indicum L.) involving eight high yielding popular varieties and five sesame... more Forty sesame (Sesamum indicum L.) involving eight high yielding popular varieties and five sesameshoot webber resistant genotypes were evaluated to study gene action, combining ability and heterosis.Among the parents, the lines VS 9701, CO 1, SVPR 1 and Rama and the testers Si 3315/11 and ES 22were the best for most of the yield and yield contributing characters (including shoot webber resistance)based on mean performance and gca effects. Considering the mean performance, sca and standardheterosis, five hybrids viz., VS 9701 × Si 3315/11, CO 1 × Si 3315/11, SVPR 1 × ES 22, VS 9701 × ES22 and Rama × Si 3315/11 were found to be superior for seed yield and shoot webber resistance andrecommended for further evaluation.
Cotton is an important fibre crop of the world and it is also a good source of oil and high quali... more Cotton is an important fibre crop of the world and it is also a good source of oil and high quality protein meal. Somaticembryogenesis in cotton plays a key role in cotton transformation. Somatic embryogenesis forms the basis of cellulartotipotency in higher plants. Four cotton cultivars viz., MCU 5, MCU 12, MCU 13 and SVPR 2 along with two modelvarieties viz., Coker 310 and Coker 312 were used to assess the somatic embryogenic efficiency. Hypocotyl and cotyledonaryleaves were used as explants for callus induction. Hypocotyl was found to be the best for in vitro study. Coker 312, MCU 13,Coker 310 and MCU 12 responded well for callus induction. Coker lines alone responded well for somatic embryogenesis.The best medium for proliferation of callus was standardized as MS + 0.1 mgl-1 2,4-D + 0.5 mgl-1 kinetin. Among thedifferent combinations tried, MS + 1.9 gl-1 KNO3 was found suitable for somatic embryogenesis. An efficient protocol forthe production of high frequency of callus and soma...
Journal of Krishi Vigyan is a multidisciplinary journal particularly for the extension scientists... more Journal of Krishi Vigyan is a multidisciplinary journal particularly for the extension scientists. Therefore, my friends must see it and arrange to send good ,innovative research work being done at the farmer's field by them.
Thirty two rice (Oryza sativa L.) hybrids involving four TGMS (Thermo Sensitive Gene Male Sterile... more Thirty two rice (Oryza sativa L.) hybrids involving four TGMS (Thermo Sensitive Gene Male Sterile) lines and eight testers were evaluated for combining ability and heterosis. Among the parents, the TGMS lines viz., GO 98049 and GO 98014, and the testers CB 97033 and IR 72 were the best based on the mean and gea effects. Considering the mean performance, sea effects and standard heterosis, six hybrids viz., GO 98013/CB 97033, GO 98013/CO 47, GO 98014/AOT 45, GO 98014/PMK 2, GO 98049/AOT 39 and GO 98049/CB 97033 were superior for grain yield and kernel quality traits and recommended for further evaluation.
Diallel analysis was carried out in three different environments namely, managed stress, rainfed ... more Diallel analysis was carried out in three different environments namely, managed stress, rainfed and dry conditions to study thecombining ability and heterosis for 13 yield and drought tolerant traits. Evaluation of parents based on per se and gca effects,the parents Nootripathu, Mattaikar, Vellaichithiraikar, PMK 3 and NPT 107 were identified as the best genotypes forimprovement of yield combined with drought tolerance . The hybrids viz., NPT 107 / MDU 5 for rainfed and dry condition andNPT 107 / Nootripathu for managed stress condition were observed to have parallelism between desirable mean, sca effects andstandard heterosis for most of the drought tolerant traits besides grain yield and hence these hybrids were recommended forcommercial exploitation of heterosis. The hybrids obtained by crossing the good general combiners viz., For the crosses ofgood general combiners viz., PMK 3 / Vellaichithiraikar, PMK 3 / Nootripathu and Vellaichithiraikar / Nootripathu, can berecommended fo...
Cotton is an important fibre crop of the world and it is also a good source of oil and high quali... more Cotton is an important fibre crop of the world and it is also a good source of oil and high quality protein meal. Somatic embryogenesis in cotton plays a key role in cotton transformation. Somatic embryogenesis forms the basis of cellular totipotency in higher plants. Four cotton cultivars viz., MCU 5, MCU 12, MCU 13 and SVPR 2 along with two model varieties viz., Coker 310 and Coker 312 were used to assess the somatic embryogenic efficiency. Hypocotyl and cotyledonary leaves were used as explants for callus induction. Hypocotyl was found to be the best for in vitro study. Coker 312, MCU 13, Coker 310 and MCU 12 responded well for callus induction. Coker lines alone responded well for somatic embryogenesis. The best medium for proliferation of callus was standardized as MS + 0.1 mgl-1 2,4-D + 0.5 mgl-1 kinetin. Among the different combinations tried, MS + 1.9 gl-1 KNO 3 was found suitable for somatic embryogenesis. An efficient protocol for the production of high frequency of callus...
The present study has been formulated in rice (Oryza sativa L.) with four cultivars (NPT 107, PMK... more The present study has been formulated in rice (Oryza sativa L.) with four cultivars (NPT 107, PMK 3, MDU 5 and ASD 16) and four local land races (Vellaichithiraikar, Mattaikar, Nootripathu and Norungan) under three different environments viz managed stress (E 1), rainfed (E 2) and dry condition (E 3) to assess the stability of hybrids and parental genotypes. The AMMI 1 biplot for yield clearly indicated that the hybrids, PMK 3/ Mattaikar, PMK 3/ Norungan and MDU 5/ Mattaikar are stable and had general adaptability at all locations. NPT 107/ MDU 5, NPT 107/ Vellaichithiraikar, PMK 3/ MDU 5, PMK 3/ Vellaichithiraikar, MDU 5/ Norungan and Mattaikar/ Nootripathu were identified as specifically adapted to favorable locations. The hybrids NPT 107/ ASD 16, NPT 107/ Mattaikar, NPT 107/ Nootripathu, PMK 3/ ASD 16, PMK 3/ Nootripathu, ASD 16/ Vellaichithiraikar and Vellaichithiraikar/ Nootripathu were considered for dry condition (E 3). In AMMI 2 biplot, the genotypes Nootripathu, NPT 107/ AS...
Forty sesame (Sesamum indicum L.) involving eight high yielding popular varieties and five sesame... more Forty sesame (Sesamum indicum L.) involving eight high yielding popular varieties and five sesameshoot webber resistant genotypes were evaluated to study gene action, combining ability and heterosis.Among the parents, the lines VS 9701, CO 1, SVPR 1 and Rama and the testers Si 3315/11 and ES 22were the best for most of the yield and yield contributing characters (including shoot webber resistance)based on mean performance and gca effects. Considering the mean performance, sca and standardheterosis, five hybrids viz., VS 9701 × Si 3315/11, CO 1 × Si 3315/11, SVPR 1 × ES 22, VS 9701 × ES22 and Rama × Si 3315/11 were found to be superior for seed yield and shoot webber resistance andrecommended for further evaluation.
Cotton is an important fibre crop of the world and it is also a good source of oil and high quali... more Cotton is an important fibre crop of the world and it is also a good source of oil and high quality protein meal. Somaticembryogenesis in cotton plays a key role in cotton transformation. Somatic embryogenesis forms the basis of cellulartotipotency in higher plants. Four cotton cultivars viz., MCU 5, MCU 12, MCU 13 and SVPR 2 along with two modelvarieties viz., Coker 310 and Coker 312 were used to assess the somatic embryogenic efficiency. Hypocotyl and cotyledonaryleaves were used as explants for callus induction. Hypocotyl was found to be the best for in vitro study. Coker 312, MCU 13,Coker 310 and MCU 12 responded well for callus induction. Coker lines alone responded well for somatic embryogenesis.The best medium for proliferation of callus was standardized as MS + 0.1 mgl-1 2,4-D + 0.5 mgl-1 kinetin. Among thedifferent combinations tried, MS + 1.9 gl-1 KNO3 was found suitable for somatic embryogenesis. An efficient protocol forthe production of high frequency of callus and soma...
Journal of Krishi Vigyan is a multidisciplinary journal particularly for the extension scientists... more Journal of Krishi Vigyan is a multidisciplinary journal particularly for the extension scientists. Therefore, my friends must see it and arrange to send good ,innovative research work being done at the farmer's field by them.
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