
The breeding process tracing and major trait analysis of Hai 7124
Jin Lin, Xu Peng, Guo Qi, Xu Zhenzhen, Shen Xinlian
The breeding process tracing and major trait analysis of Hai 7124
[Objective] The purpose of this study was to trace the breeding process of Hai 7124, and clarify the characteristics of strains thorough analyzing the evolution of several traits, so as to provide reference for further exploring the value of Hai 7124 in cotton genetic breeding and resource utilization. [Methods] By consulting the historical research archives preserved by Institute of Industrial Crops, Jiangsu Academy of Agricultural Sciences, the growth period, boll setting capacity, yield, fiber quality, disease resistance, plant architecture and other informations of the original materials and the selected breeding materials involved in the selection process of Hai 7124 were analyzed. [Results] The breeding of Hai 7124 began in 1959 with the introduction of the original material named Menoufi from Egypt, and went through ten generations of systematic selection. The key individual plant 65-3049-6 was obtained in 1965, and the selected line numbered 7124 with excellent characteristics was obtained in 1974, which named Hai 7124. Systematic selection not only promoted the early maturity of Hai 7124, but also preserved the excellent characteristics of the original material Menoufi and the related breeding materials, including good fiber quality, high yield, and strong resistance to Verticillium wilt. Additionally, it contributed to the formation of compact plant architecture. [Conclusion] Hai 7124 was derived from the original material Menoufi. The systematic selection promoted early maturity, and retained excellent traits, such as good fiber quality, high yield, and resistance to Verticillium wilt.
Hai 7124 / Gossypium barbadense / breeding / origin tracing / characteristics {{custom_keyword}} /
Fig. 2 Percentage of seed-cotton after frost of the main selected lines of G. barbadense in 1964CR3: Changrong 3; C4923: Chang 4923; LM: lines derived from Menoufi. Different lowercase letters indicate significant difference (P < 0.05). 图2 1964年海岛棉主要选系的霜后花率 CR3:长绒3号;C4923:长4923;LM:米努非选系。不同小写字母表示差异显著(P<0.05)。 |
Table 1 The growth period of the key lines related to Hai 7124 and the other breeding materials of G. barbadense in specific years表1 部分年份海7124相关株行与同年海岛棉其他育种材料的生育期 |
年份 Year | 海岛棉材料 Materials of G. barbadense | 播期 Sowing date | 播种至出苗时间 Time from sowing to emergence/d | 播种至现蕾时间 Time from sowing to budding/d | 播种至开花时间 Time from sowing to flowering/d |
---|---|---|---|---|---|
1971 | 65-3049-6 (1971) | 05-19 | 9 | 46 | 70 |
OBM | 05-19 | 9~11 | 40~48 | 67~71 | |
1972 | 72-6068 | 04-21 | 12 | 49 | 78 |
OBM | 04-21 | 12~21 | 43~55 | 78~83 | |
1974 | 74-7124 | 04-01 | 5 | 54 | 91 |
OBM | 04-01 | 5~10 | 54~63 | 90~108 |
注:65-3049-6(1971)、72-6068和74-7124为海7124相关株行材料的行号。OBM指相关年份的海岛棉其他育种材料,主要为长绒3号、长4923相关株行材料,米努非其他株行材料,以及以米努非、长4923、长绒3号为亲本的杂交组合后代材料。 | |
Note: The numbers 65-3049-6 (1971), 72-6068, and 74-7124 represent the plant row numbers of materials related to Hai 7124. OBM (other breeding materials) refer to the breeding materials of G. barbadense for specific years, primarily consisting of materials related to Changrong 3 and Chang 4923, as well as other materials derived from Menoufi, and the hybrid progeny derived from crosses using Menoufi, Chang 4923, and Changrong 3 as parents. |
Fig. 3 Percentage of hard seed-cotton before frost of the main selected lines of G. barbadense in 1964CR3: Changrong 3; C4923: Chang 4923; LM: lines derived from Menoufi. Different lowercase letters indicate significant difference (P < 0.05). 图3 1964年海岛棉主要选系的霜前僵瓣率 CR3:长绒3号;C4923:长4923;LM:米努非选系。不同小写字母表示差异显著(P<0.05)。 |
Fig. 4 Fiber yield and quality of the main selected lines of G. barbadense in 1964CR3: Changrong 3; C4923: Chang 4923; LM: lines derived from Menoufi. Different lowercase letters indicate significant difference (P < 0.05). 图4 1964年海岛棉主要选系的产量与纤维品质 CR3:长绒3号;C4923:长4923;LM:米努非选系。不同小写字母表示差异显著(P<0.05)。 |
Table 2 Fiber yield and quality of the main selected lines of G. barbadense in 1965表2 1965年海岛棉主要选系的产量与纤维品质 |
材料 Material | 籽棉产量 Seed cotton yield/(kg·hm-2) | 皮棉产量 Lint yield/(kg·hm-2) | 纤维上半部平均长度 Fiber upper half mean length/mm | 衣分 Lint percentage/% | 籽指 Seed index/g |
---|---|---|---|---|---|
长绒3号 Changrong 3 | 1 236.00 | 438.75 | 33.67 | 35.50 | 10.20 |
长4923 Chang 4923 | 1 049.40 | 348.90 | 37.46 | 33.25 | 11.01 |
米努非品系 Menoufi line | 1 408.65 | 489.90 | 38.26 | 34.78 | 11.32 |
Table 3 Fiber quality and yield traits of the key individual plants related to Hai 7124表3 海7124相关单株材料的纤维品质与产量性状 |
年份 Year | 单株号 Individual plant number | 纤维上半部平均长度 Fiber upper half mean length/mm | 衣分 Lint percentage/% | 籽指 Seed index/g |
---|---|---|---|---|
1965 | 65-3049-6 | 39.95 | 35.80 | 13.26 |
1971 | 65-3049-6(1971)-② | 39.20 | 32.45 | 8.78 |
1972 | 72-6068-12 | 37.50 | 33.77 | 10.50 |
1973 | 73-3259-15 | 39.40 | 32.70 | 11.73 |
注:1974年因气候条件不利,自然灾害严重,大部分材料的籽棉是霜后花,多不成熟,严重影响纤维品质,故未进行室内考种。 | |
Note: In 1974, due to the unfavorable climatic conditions and severe natural disasters, the seeds of most breeding materials were immature and produced after frost, which significantly affected fiber quality. Therefore, the evaluation of these materials was not conducted. |
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