http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Wisdom Japhet (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
-
Wisdom Japhet,Daowei Zhou,Hongxuan Zhang,Hongxiang Zhang,Tian Yu 한국식물학회 2009 Journal of Plant Biology Vol.52 No.4
Phenotypic plasticity is an important attribute that enables plants to survive across a range of environments. We conducted two experiments to investigate the plasticity of architectural traits and biomass ratios for Fagopyrum esculentum Moench in response to population density and sowing date. These included (1) inter-planting distances of 5, 10, 15, or 20 cm; and (2) sowing on 25 July, 1 August, 5 August, or 10 August. Many traits exhibited phenotypic plasticity that was coupled with changes in plant size. However, variations in leaf/mass ratio from either experiment, as well as leaf/root ratios in response to sowing date, were independent of size. When coefficients of variation were computed, some consistency was found in the magnitude of trait plasticity for both density and sowing date. For each experiment, leaf/root ratios, leaf/mass ratios, and stem/mass ratios were most plastic. Although this suggests that biomass ratios could be more responsive to environmental changes, a wide array of traits should be considered if we are to fully understand the mechanism for these phenomena.
-
Yingxin Huang,Xueyong Zhao,Hongxuan Zhang,Wisdom Japhet,Xiaoan Zuo,Yayong Luo,Gang Huang 한국식물학회 2009 Journal of Plant Biology Vol.52 No.3
We monitored the allometric effects for greenhouse- grown Agriophyllum squarrosum plants in response to variations in population density and the availability of soil nutrients and water. Biomass allocations were sizedependent. The plasticity of roots, stems, leaves, and reproductive effort was “true” in response to changes in nutrient content. At a low level of soil minerals, plants allocated more resources to the development of roots and reproductive organs than to leaves, but data for stem allocations were consistent for tradeoffs between the effects of nutrients and plant size. The plasticities of leaf allocation and reproductive effort were “true” whereas those of root and stem allocations were “apparent” in response to fluctuations in soil water, being a function of plant size. Decreasing soil water content was associated with higher leaf allocation and lower reproductive effort. Except for this “apparent” plasticity of leaf allocation, none was detected with population density on biomass allocation. Architectural traits were determinants of the latter. For roots, the determining trait was the ratio of plant height to total biomass; for stems and reproduction, plant height; and for leaves, the ratio of branch numbers to plant height.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
