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| Reddy Medagam,Thirupathi; Kadiyala,Haribabu; Mutyala,Ganesh; Hameedunnisa,Begum. |
| The study of heterosis would help in selection of heterotic crosses for commercial exploitation of F1 hybrids in okra (Abelmoschus esculentus (L.) Moench). Forty five F1S were developed by crossing 10 elite lines of okra: P1(IC282248), P2(IC27826-A), P3(IC29119-B), P4(IC31398-A), P5(IC45732), P6(IC89819), Py(IC89976), P8(IC90107), P9(IC99716), and P10(IC111443), in half diallel fashion during summer 2009. All 45 F1s along with their 10 parents and one standard control (Mahyco Hybrid N° 10) were evaluated in a randomized complete block design with three replicates during early kharif (June to September) 2009 at the Vegetable Research Station, Rajendranagar, Andhra Pradesh, India, for heterosis of yield and its components of okra. Significance of mean... |
| Tipo: Journal article |
Palavras-chave: Abelmoschus esculentus; F1 hybrids; Half diallel crosses; Heterotic pattern; Hybrid vigour; Mean performance; Parental lines. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000300003 |
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| Pachara Saengsawong; Supaporn Junbuathong; Piyavadee Charoenwattana. |
| In three-line hybrid rice system, development of parental lines by backcrossing and early generation testing for combining ability is a method used for developing CMS lines (A line) and restorer lines (R line) simultaneously. In this study F3 progenies from 15 crosses of maintainers (B line) were backcrossed to their respective A lines, and 6 crosses and 46 isogenic lines produced. Completely sterile backcross progenies were found in 3 crosses, i.e., IR79156A//IR79156B/CNT1, IR80156A//IR80156B/IR46R and IR80156A//IR80156B/SPR1. Concurrently three new CMS lines, PTT08001A, PTT08002A and PTT08003A were developed. They were then crossed with 5 testers or restorer lines, i.e., RD31, SPR1, CK81, CK120 and CK168. The resulting 15 crosses of F1 hybrid were... |
| Tipo: PhysicalObject |
Palavras-chave: Cytoplasmic male sterile; CMS system; Hybrid rice; A-line; B-line; R-line; Restorer lines; Back crossing; Parental lines; Variety development; Yield trial; ข้าวลูกผสม; ข้าว 3 สายพันธุ์; การผสมกลับ; สายพันธุ์เรณูเป็นหมัน; สายพันธุ์รักษาความเป็นหมัน; สายพันธุ์แก้ความเป็นหมัน; สายพันธุ์พ่อแม่; การพัฒนาสายพันธุ์; ความดีเด่นของลูกผสม; การผลิตข้าว; การทดสอบพันธุ์; สมรรถนะการผสม; ผลผลิต. |
| Ano: 2013 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5706 |
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