화훼연구 (FLOWER RESEARCH JOURNAL)

  • 제17권3호
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  • Pages.179-184
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  • 2009
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  • 1225-5009(pISSN)
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  • 2287-772X(eISSN)
한국화훼학회 (The Korean Society for Floricultural Science)
권호 표지

페튜니아 일대 잡종에서 덩굴성 관련형질의 상호관계 및 조합능력

Correlation and Combining Ability of Plant Spreading Chracteristics in F1 Hybrids by Diallel Cross in Petunia hybrida

  • 투고 : 2009.08.28
  • 심사 : 2009.09.21
  • 발행 : 2009.09.30

⟨ 이전 논문 다음 논문 ⟩

초록

페튜니아 5개 계통을 이면교배한 $F_1$ 10개 조합 및 양친에 대한 성 관련 형질인 초장, 초폭, 줄기길이, 줄기수, 절간장, 엽수 및 개회수 등의 형질에 대하여 상호관계 및 조합능력을 분석하였다. 초장은 초폭, 절간장 및 개회수 등의 형질들과, 엽수는 초폭, 줄기수 및 개회수의 형질들과 유의성이 인정되었으며, 특히 초폭과 절간장과의 사이에 고도로 유의한 정의 상관관계를 보였다. 일반조합능력(GCA)은 초장, 초폭, 줄기길이, 절간장, 줄기수, 엽수 및 개화수 등 모든 조사 형질에서 유의성이 인정되었고, 특수조합능력(SCA) 초폭, 줄기수, 엽수 및 개화수 등의 형질에서 유의성이 있었고, 일반조합능력효과가 특수조합능력효과보다 크게 작용하였다. 모본의 일반조합능력검정에서 D계통은 초 장, 초폭, 줄기길이, 줄기수, 엽수 및 개회수의 증가를 위해서, I계통은 초폭, 줄기길이 절간장에 대하여 일반 조합능력이 큰 것으로 나타났다. 특수조합능력 검정에서 초폭 증가에 뚜렷한 유의성을 보인 조합은 $D{\times}I$, $F{\times}I$와 $G{\times}I$조합이었고, 초폭, 절간장 및 개회수를 동시에 증가시키는데 유의성을 보인 조합은 $G{\times}I$조합이었다. 광의의 유전력은 7가지 형질 모두 크게 나타났고, 초폭과 줄기길이 및 절간장은 협의의 유전력도 높게 나타났다.

The correlation and combining abilities related with plant spreading characteristics of plant height, plant width, stem length, internode length, number of stem, number of leaves, and number of flower were studied in the $F_1s$ of 10 crosses from the partial five-parent diallel cross in Petunia hybrida. The plant width showed highly positive correlation with internode length, and number of flower. The mean squares of general combining ability(GCA) and specific combining ability(SCA) were highly significant for plant width, number of stem, number of leaves, and number of flowers. The mean square values of GCA were greater than those of SCA for all the characters, showing preponderance of additive gene actions for these characters. The lines of D and I for plant width and length of stem showed relatively high GCA effects. The crosses of $D{\times}I$, $F{\times}I$, and $G{\times}I$ exhibited high SCA effects on plant width, especially $G{\times}I$ effected in internode length and number of flower. The broad sense heritability was generally high compared to narrow sense one. Plant width and stem length, and internode length related to spreading growth showed the higher heritability than the other characters in the broad and narrow sense.

키워드

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