다양한 온도 환경에서 난지형 및 한지형 주요 잔디의 발아력, 발아특성, 발아패턴 및 유묘발생 비교 :Comparison of Germination Power, Germination Characteristics, Germination Pattern and Morphological Seedling Development in Major Warm-Season and Cool-Season grasses at Different Temperature Conditions.

송기완

자료유형: 학위논문

저자정보: 송기완 (삼육대학교, 삼육대학교 일반대학원)

지도교수: 김경남

발행연도: 2023

저작권: 삼육대학교 논문은 저작권에 의해 보호받습니다.

이용수28

초록· 키워드

본 연구는 다양한 온도 환경 조건에서 주요 난지형 및 한지형 잔디의 발아성능 및
생육특성을 파악하여 실제 시공환경에 알맞은 파종 적기와 설계치짐을 제공
하고자 실시되었다. 발아실험은 서로 다른 4종류의 변온 조건(Experiment Ⅰ:
5~15°C, Experiment Ⅱ: 10~20°C, Experiment Ⅲ: 15~25°C , Experiment Ⅳ:
20~35°C)과 실온 조건(26.2~38.1°C)에서 난지형 및 한지형 잔디 18종류를
대상으로 발아력, 발아세, 발아 피크 기간, 유묘의 형태적 특성을 조사하였다. 이때
변온 환경의 광조건은 8시간(오전 9시~오후 5시), 암조건은 16시간(오후 5시~오전
9시)였다.
본 실험 결과 Experiment Ⅰ~Ⅳ 사이의 변온 환경과, 26.2~38.1°C로 유지되는
실온 조건에서 발아력, 발아세 및 발아 피크 기간은 각 초종 및 품종별로 온도 환경에
따라 통계적으로 유의한 차이가 나타났다. 난지형 잔디는 20~35°C 사이로 유지되는
Experiment Ⅳ에서 발아력이 가장 우수하여 50.50%(Ber ‘Common’)~98.25%(Ber
‘Maya’)로 나타났다. 발아세는 기간이 짧을수록 잔디밭의 조기 피복에 유리한데,
종합적으로 발아율 70%에 도달하는 기간은 Experiment Ⅳ에서 Ber ‘Maya’ 품종이
5.77일로 가장 짧아 가장 느렸던 SP 초종과 비교하여 15.16일 더 빨랐고, 30%→70%
발아 피크 기간도 0.83일로 가장 우수하였다. 한지형 잔디는 15~25°C로 유지되는
Experiment Ⅲ에서 발아력이 가장 우수한 경향으로 초종간 우열 관계는 CB, PR >
TF > KB로 나타났고, 이때 최종 발아율은 77.75%(KB ‘Endurance’)~98.00%(CB
‘Pure Select’)사이로 나타났다. CB 초종은 10~20°C 및 20~35°C 온도 범위에서도
모든 품종들의 발아력이 양호하여 10~35°C 범위의 실무 현장에서도 잔디밭 시공이
적합할 것으로 판단된다. 이 중 ‘Pure Select’ 품종은 타 품종과 비교하여 70%
발아세도 빠른 편에 속하였다. 이어서 발아속도가 느린 편에 속하였던 KB의 경우
품종별로 다양하였는데 이 중 ‘Jump Start’ 및 ‘Right-After Midnight’ 품종의 발아력,
발아세, 발아 피크 기간은 Experiment Ⅱ~Ⅳ 조건에서 대체적으로 양호하여
10~35°C 범위에서도 잔디밭 조성에 효과적일 것으로 판단되나, 나머지 ‘Endurance’
및 ‘Moonlight SLT’ 품종은 70% 발아세가 위 두 품종들과 비교하여 다소 느려 종자
선택 시 유의하여야 할 것이다. 그리고 TF의 경우 KB와 마찬가지로 가장 낮은 온도인
Experiment Ⅰ(5~15°C)에 비해 생육상의 온도가 증가할수록 종합적으로 양호한
경향을 보였는데, ‘Carly’ 및 ‘Sungold RST’ 품종 모두 Experiment Ⅱ~Ⅲ(10~25°C)
에서 최종 발아율이 85%이상으로 나타나 양호하였다. PR의 경우 모든 온도조건에서
발아력, 발아세 및 발아 피크 기간이 짧았고 발아력 또한 85%이상으로 나타나 5°C
이상의 실무 현장에서 활용도가 가장 높을 것으로 예상된다. 이밖에도 ‘Carly’ 품종은
발아력이 모든 환경에서 90% 이상으로 나타나 매우 유용하게 사용될 수 있을 것이다.
이밖에도 온도환경에 따른 초종 및 품종별 유묘의 형태적 특성을 조사하였는데,
생육온도가 증가할수록 빠르게 기관이 형성되는 경향을 보였으나, 제2엽 관찰 결과를
통해 발아력과 기관 출현 속도는 비례하지 않는 것으로 나타났다.
종합적으로 본 실험에 사용한 18종류의 잔디는 다양한 온도 환경에서 발아력,
발아세, 발아 피크 기간 및 유묘의 형태와 발달이 초종 및 품종별로 다양하게 나타나
이러한 결과를 바탕으로 실무현장에 적용 시 유용하게 사용될 수 있을 것이다. 하지만
향후 연구에서는 실제 시공 현장을 고려하여 본 실험의 온도 조건보다 더 높은
고온에서 실시되거나, 토양에 파종하여 연간 생육능력 파악을 통한 국내 기후조건에
부합하는 다각적인 잔디 초종 및 품종별 연구가 시행되어야 할 것이다.

#발아특성 #발아패턴 #발아세 #발아 피크 기간 #유묘의 형태적 발달 #난지형 잔디 #한지형 잔디 #변온 조건

감사의 글 ································································································· i
List of Tables ························································································· vi
List of Figures ······················································································· ⅷ
List of Appendices ·················································································· ⅸ
국문요약 ································································································· x
Ⅰ. 서 론 ································································································· 1
1. 연구 배경 ·························································································· 1
2. 잔디의 기본 특성 및 분류 ······································································
3. 국내 주요 잔디의 이용 현황 ··································································· 3
4. 잔디밭 조성과 종자파종 ······································································· 6
Ⅱ. 재료 및 방법 ······················································································· 9
1. 공시재료 ···························································································· 9
2. 발아실험 ·························································································· 11
3. 조사항목 ·························································································· 13
4. 통계분석 ·························································································· 14
Ⅲ. 결과 및 고찰 ··················································································· 15
A. Experiment Ⅰ(5~15°C)
주요 잔디의 발아력, 발아피크 및 유묘발생 ········································· 15
1. 초종 및 품종별 종자 발아력 비교 ························································· 15
2. 초종 및 품종별 종자 발아세 특성 비교 ·················································· 17
3. 초종 및 품종별 발아 피크 기간 비교 ····················································· 21
4. 초종 및 품종별 유묘의 형태적 발생 특성 비교 ········································ 22
B. Experiment Ⅱ(10~20°C)
주요 잔디의 발아력, 발아피크 및 유묘발생 ··········································· 25
1. 초종 및 품종별 종자 발아력 비교 ························································· 25
2. 초종 및 품종별 종자 발아세 특성 비교 ·················································· 27
3. 초종 및 품종별 발아 피크 기간 비교 ··················································· 32
4. 초종 및 품종별 유묘의 형태적 발생 특성 비교 ······································ 35
C. Experiment Ⅲ(15~25°C)
주요 잔디의 발아력, 발아피크 및 유묘발생 ·········································· 38
1. 초종 및 품종별 종자 발아력 비교 ······················································ 38
2. 초종 및 품종별 종자 발아세 특성 비교 ·················································· 40
3. 초종 및 품종별 발아 피크 기간 비교 ····················································· 46
4. 초종 및 품종별 유묘의 형태적 발생 특성 비교 ······································· 49
D. Experiment Ⅳ(20~35°C)
주요 잔디의 발아력, 발아피크 및 유묘발생 ·········································· 52
1. 초종 및 품종별 종자 발아력 비교 ························································· 52
2. 초종 및 품종별 종자 발아세 특성 비교 ·················································· 54
3. 초종 및 품종별 발아 피크 기간 비교 ····················································· 59
4. 초종 및 품종별 유묘의 형태적 발생 특성 비교 ······································· 62
E. Experiment Ⅴ(자연 실온)
주요 잔디의 발아력, 발아피크 및 유묘발생 ·········································· 65
1. 초종 및 품종별 종자 발아력 비교 ························································· 65
2. 초종 및 품종별 종자 발아세 특성 비교 ·················································· 66
3. 초종 및 품종별 발아 피크 기간 비교 ····················································· 69
4. 초종 및 품종별 유묘의 형태적 발생 특성 비교 ········································ 71
Ⅳ. 요 약 ······························································································· 73
A. Experiment Ⅰ: 5~15°C 변온 환경 ······················································ 73
B. Experiment Ⅱ: 10~20°C 변온 환경 ···················································· 75
C. Experiment Ⅲ: 15~25°C 변온 환경 ···················································· 77
D. Experiment Ⅳ: 20~35°C 변온 환경 ···················································· 79
E. Experiment Ⅴ: 26.2~38.1°C 실온 환경 ··············································· 81
Ⅴ. 결 론 ································································································ 83
참고문헌 ································································································ 90
Abstract ································································································ 96
부 록 ····································································································· 99

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