Breeding method of three-line male sterile line with erect panicle, long stigma and long panicle neck
A three-line sterile line, long panicle neck technology, applied in the directions of botanical equipment and methods, application, plant genetic improvement, etc., can solve the problems of decreased seed viability, environmental pollution, increased cost, etc., and improved seed production yield. , the effect of reducing production costs and increasing economic benefits
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Embodiment 1
[0018] 1) Choose the erect panicle rice variety Shennong 265 (A), the long stigma rice variety Hai B (B), and the long panicle rice variety IR68902eB1 (C) to provide parents for the target traits, and Longtepu B recurrent parents (R) for Hybrid A / B, get hybrid F 1 Substituting F 1-AB Means
[0019] 2) Plant hybrid F 1 Generation, cross F at flowering 1-AB / C, get F 1 , With F 1-ABC Means
[0020] 3) Plant F 1-ABC , F 2-ABC , Plant F 2-ABC , A population of 1800 plants, the plants with the traits of erect panicle, long stigma and long panicle neck were selected at the heading and flowering stage, and the individual plants were harvested at the maturity stage (F 3-ABC );
[0021] 4) Strain planting 3) F obtained with the traits of erect panicle, long stigma and long panicle neck at the same time 3-ABC Plant 30 plants for each line. At the heading and flowering stage, 2 lines with upright panicle, long stigma, and long panicle neck were screened and the traits were not segregated....
Embodiment 2
[0029] 1) Select the erect panicle rice variety Shennong 265 (A), the long stigma rice variety Hai B (B), and the long panicle rice variety IR68902eB1 (C) as the parents for the target traits, and the flower 2B as the recurrent parent (R) for crossbreeding A / B, get hybrid F 1 Substituting F 1-AB Means
[0030] 2) Plant hybrid F 1 Generation, cross F at flowering 1-AB / C, get F 1 , With F 1-ABC Means
[0031] 3) Plant F 1-ABC , F 2-ABC , Plant F 2-ABC , A population of 1900 plants, the plants with the traits of erect panicle, long stigma and long panicle neck were selected at the heading and flowering stage, and each plant was harvested at the maturity stage (F 3-ABC );
[0032] 4) Strain planting 3) F obtained with the traits of erect panicle, long stigma and long panicle neck at the same time 3-ABC Plant 30 plants for each line. At the heading and flowering stage, select 3 lines with upright panicle, long stigma and long panicle neck without segregation of the traits, and sele...
Embodiment 3
[0040] 1) Select the erect panicle rice variety Shennong 265 (A), the long stigma rice variety Hai B (B), and the long panicle rice variety IR68902eB1 (C) as the parents to provide the target traits, and Fujian standard 1B as the recurrent parent (R). Hybrid A / B, get hybrid F 1 Substituting F 1-AB Means
[0041] 2) Plant hybrid F 1 Generation, cross F at flowering 1-AB / C, get F 1 , With F 1-ABC Means
[0042] 3) Plant F 1-ABC , F 2-ABC , Plant F 2-ABC , A population of 2000 plants, at the heading and flowering stage, the plants with the traits of erect panicle, long stigma and long panicle neck were selected for listing, and individual plants were harvested at maturity stage (F 3-ABC );
[0043] 4) Strain planting 3) F obtained with the traits of erect panicle, long stigma and long panicle neck at the same time 3-ABC Plant 30 plants for each line. At the heading and flowering stage, select 3 lines with upright panicle, long stigma and long panicle neck without segregation of t...
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