扰动环境中不同刈割方式对柠条营养生长补偿的影响

doi:10.17521/cjpe.2006.0103

摘要/Abstract

摘要：

柠条(Caragana korshinskii)在地上组织破坏后进行补偿性生长,这是重复利用柠条资源的基础,但对柠条不同刈割方式下营养生长补偿的模式有待探讨。该文通过5种刈割方式:去除主枝长的30%(30%RSL)、去除主枝长的60%(60%RSL)、去除分枝数的25%(25%RSN)、去除分枝数的50%(50%RSN)和去除分枝数的100%(100%RSN)来研究柠条的营养生长补偿。结果表明:刈割处理的柠条生物量当年发生了超补偿,当年生枝数/枝、当年生枝长、当年生枝生物量/枝、当年生枝生物量/株比对照高。对照、30%RSL和60%RSL 处理未长出基梢。 100%RSN处理的基梢数/刈割枝、基梢长、单个基梢平均生物量显著高于25%RSN和50%RSN处理,基梢生物量/株随刈割去除生物量的增加而增加。100%RSN 处理未结果,其它处理果实产量表现出超补偿或精确补偿。对照处理营养生长和生殖生长均低,其它处理当年生枝生物量与果实产量成显著负相关。从整个生长季节来看,营养生长主要集中在果实成熟之前。我们认为,100%RSN处理是柠条地上组织破坏后尽快恢复的合理方式,其当年生生物量远高于其它处理。顶端优势的破坏促使休眠芽的萌发,根冠比的改变使地上组织获得较多养分和水分,根系储存的碳水化合物的供应是促使刈割柠条营养生长超补偿的的可能机制,而减少生殖生长对资源的消耗,是100%RSN处理地上生物量尽快恢复的另一重要因素。

关键词: 柠条, 当年生枝, 基梢, 营养生长补偿, 刈割

Abstract:

Background and Aims After browsing or clipping, Caragana korshinskii can compensate for loss of biomass, which is the foundation for repeated use of resources of this species. However, the pattern of vegetative compensatory growth under different clipping treatments is still poorly understood.

Methods In order to test the effects of removal of partial shoot length (RSL) and partial shoot number (RSN) on vegetative growth, we removed 30% (30%RSL), 60% (60%RSL) of main shoot length, and 25% (25%RSN), 50% (50%RSN), and 100% (100%RSN) of main shoot number.

Key Results Clipped shrubs overcompensated for tissue loss, and current year shoot number per shoot, current year shoot length, current year shoot biomass per shoot and current year shoot biomass per shrub were higher than those of the control. The control, 30%RSL and 60%RSL shrubs did not resprout after clipping, while 25%RSN, 60%RSN and 100%RSN treatments did resprout and the biomass per shrub increased when more shoot biomass were removed. Differences in resprout number per removal shoot, resprout length, individual resprout biomass were not significant between 25%RSN and 50%RSN treatment, but resprout number per removal shoot, resprout length, individual resprout biomass of both were less than those of 100%RSN treatment. Fruit production in clipping treatments was higher or equal to that of the control with the exception of 100%RSN, which grew no fruit. There was a negative relationship between annual shoot biomass and fruit production with the exception of the control, which had less fruit production and the annual shoots almost did not grow. During growth season, biomass of current year vegetative growth increased quickly from current year's shoot growth to fruit ripeness. In the following three months, from fruit ripeness to leaf abscission, however, it increased slowly.

Conclusions 100%RSN treatment may be a reasonable mode to prompt shrubs to recover quickly from damage. Plants' responses associated with compensation may include: increased branching or tillering after alteration of the apical dominance, increased availability of water and/or nutrients after the change in the ratio of shoot to root, and remobilization of resources reserved in roots to aboveground organs. Decreased allocation of resources to reproductive growth may be another important mechanism for 100%RSN shrubs to compensate for the loss of organs.

Key words: Caragana korshinskii, Current year shoot, Resprout, Vegetative compensatory growth, Clipping

方向文, 王万鹏, 何小琴, 王刚. 扰动环境中不同刈割方式对柠条营养生长补偿的影响. 植物生态学报, 2006, 30(5): 810-816. DOI: 10.17521/cjpe.2006.0103

FANG Xiang-Wen, WANG Wan-Peng, HE Xiao-Qin, WANG Gang. A STUDY ON VEGETATIVE COMPENSATORY GROWTH OF SHRUB, CARAGANA KORSHINSKII, UNDER DIFFERENT CLIPPING TREATMENTS IN DISTURBANCE ENVIRONMENT. Chinese Journal of Plant Ecology, 2006, 30(5): 810-816. DOI: 10.17521/cjpe.2006.0103

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链接本文: https://www.plant-ecology.com/CN/10.17521/cjpe.2006.0103

https://www.plant-ecology.com/CN/Y2006/V30/I5/810

图/表 4

图1 不同刈割处理对柠条当年生枝数/枝、当年生枝长、当年生枝生物量/枝、当年生枝生物量/株的影响(n=10) C:对照 Control 30:30% RSL 60:60% RSL 25:25% RSN 50: 50% RSN RSL:去除主枝长度 Shoot length remonal RSN: 去除掉枝数 Shoot number removal

Fig.1 The effects of different clipping treatments on current year shoot number per shoot, current year shoot length, current year shoot biomass per shoot and current year shoot biomass per shrub

图2 不同刈割处理对柠条基梢数/刈割枝、基梢长、单个基梢生物量和基梢生物量/株的影响 100:100% RSN C、30、60、25、50、RSL、RSN:同图1 See Fig.1

Fig.2 The effects of different clipping treatments on resprout number per removed shoot, resprout length, individual resprout biomass and resprout biomass per shrub

图3 不同刈割处理对植株不同时间当年生枝生物量的影响 C、30、60、25、50、RSL、RSN: 同图1 See Fig.1 100: 同图2 See Fig. 2

Fig.3 The effects of different clipping treatments on current year shoot biomass at different times

图4 不同刈割处理对柠条果实产量的影响 C、30、60、25、50、RSL、RSN: 同图1 See Fig.1 100: 同图2 See Fig. 2

Fig.4 The effects of different clipping treatments on fruit production

参考文献 46

[1]	Al-Khayri JM, Al-Bahrany AM (2004). Growth, water content, and proline accumulation in drought-stress callus of date palm. Biologia Plantarum, 48,105-108.
[2]	Bangerth F, Li CJ, Gruber J (2000). Mutual interaction of auxin and cytokinins in regulating correlative dominance. Plant Growth Regulation, 32,205-217.
[3]	Belsky AJ (1986). Does herbivory benefit plants? A review of the evidence. American Naturalist, 127,870-892.
[4]	Bilbrough CJ, Richards JH (1993). Growth of sagebrush and bitterbrush following simulated winter browsing: mechanisms of tolerance. Ecology, 74,481-492.
[5]	Bond WJ, Midgley JJ (2001). Ecology of sprouting in wood plants: the persistence niche. Trends in Ecology and Evolution, 16,45-51. DOI URL PMID
[6]	Bowen BJ, Pate JS (1993). The significance of root starch in post-fire shoot recovery of the resprouter Stirlingia latifolia R.Br. (Proteaceae). Annals of Botany, 72,7-16.
[7]	Canadell J, López-Soria L (1998). Lignotuber reserves support regrowth following clipping of two Mediterranean shrubs. Functional Ecology, 12,31-38.
[8]	Cruz A, Moreno JM (2001). No allocation trade-offs between flowering and sprouting in the lignotuberous, Mediterranean shrub Erica australis. Acta Oecologica, 22,121-127.
[9]	Cruz A, Pérez B, Moreno JM (2003). Plant stored reserves do not drive resprouting of the lignotuberous shrub Erica australis. New Phytologist. 157,251-261.
[10]	du Toil JT, Bryant JP, Fisby K (1990). Regrowth and palatability of Acacia shoots following pruning by African savanna browsers . Ecology, 71,149-154.
[11]	Dyer MI, Acra MA, Wang GM, Coleman DC, Freckman DW, McNaughton SJ, Strain BR (1991). Source-sink carbon relations in two Panicum coloratum ecotypes in response to herbivory . Ecology, 72,1472-1483.
[12]	Escarré JE, Lepart J, Sentuc JJ (1996). Effects of simulated herbivory in three old field Compositae with different inflorescence architectures. Oecologia, 105,501-508. DOI URL PMID
[13]	Fang XW, Wang XZ, Li H, Chen K, Wang G (2006). Responses of Caragana korshinskii to different aboveground shoot removal: combining defence and tolerance stragegies . Annals of Botany, 98,203-211. DOI URL PMID
[14]	Fetene M, Beck E (1993). Reversal of direction of photosynthate allocation in Urtica dioica L. plants by increasing cytokinin import into the shoot . Botanica Acta, 106,235-240.
[15]	Fleck I, Aranda X, El Omari B, Permanyer J, Abadía A, Hogan KP (2000). Light energy dissipation in Quercus ilex resprout after fire . Australian Journal of Plant Physiology, 27,129-137.
[16]	Fleck I, Hogan KP, Lorens L, Abadía A, Aranda X (1998). Photosynthesis and photoprotection in Quercus ilex resprouts after fire . Tree Physiology, 18,607-614. URL PMID
[17]	Frey BR, Lieffers VJ, Landh⁉usser SM, Comeau PG, Greenway KJ (2003). An analysis of sucker regeneration of trembling aspen. Canadian Journal of Forest Research, 33,1169-1179.
[18]	Haukioja E, Koricheva J (2000). Tolerance to herbivory in woody vs. herbaceous plants. Evolutionary Ecology, 14,551-562.
[19]	Hockwender CG, Marquis RJ, Stowe KA (2000). The potential for and constraints on the evolution of compensatory ability in Asclepias syriaca. Oecologia, 122,361-370. DOI URL PMID
[20]	Houle G, Simard G (1996). Additive effects of genotype, nutrient availability and type of tissue damage on the compensatory response of Salix planifolia ssp. planifolia to simulated herbivory . Oecologia, 107,373-378.
[21]	Huhta AP, Hellstrøm K, Rautio P, Tuomi J (2003). Grazing tolerance of Gentianella amarelle and other monocarpic herbs: why is tolerance highest at low damage levels ? Plant Ecology, 166,49-61.
[22]	Kruger El, Reich PB (1997). Response of hardwood regeneration to fire in mesic forest opening.Ⅱ. Leaf gas exchange, nitrogen concentration, and water status. Canadian Journal of Forest Research, 27,1832-1840.
[23]	Landh⁉usser SM, Lieffers VJ (2002). Leaf area renewal, root retention and carbohydrate reserves in a colonal tree species following above-ground disturbance. Journal of Ecology, 90,658-665.
[24]	Liu GQ(刘国谦), Zhang JB(张俊宝), Liu DQ(刘东庆) (2003). The technology of Caragana rororshisrii powder processing and feeding . Pratacultural Science (草业科学), 20,26-32. (in Chinese with English abstract)
[25]	Lortie CJ, Aarssen LW (2000). Fitness consequences of branching in Verbascum thapsus (Scrophulariaceae) . American Journal of Botany, 87,1793-1796.
[26]	Mabry CM, Wayne PW (1997). Defoliation of the annual herb Abutilon theophrasti: mechanisms underlying reproductive compensation . Oecologia, 111,225-232. DOI URL PMID
[27]	Maschinski J, Whitham TG (1989). The continuum of plant responses to herbivory: the influence of plant association, nutrient availability and timing. American Naturalist, 134,1-19.
[28]	Meyer GA (1998). Mechanisms promoting recovery from defoliation in goldenrod (Solidago altissima). Canadian Journal of Botany, 76,450-459.
[29]	Obeso JR (1993). Does defoliation affect reproductive output in herbaceous perennials and woody plants in different ways? Functional Ecology, 7,150-155.
[30]	Pate JS, Froend RH, Bowen BJ, Hansen A, Kuo J (1990). Seedling growth and storage characteristics of seeder and resprouter species of Mediterranean-type ecosystems of S.W. Australia. Annals of Botany, 65,585-601.
[31]	Phillips IDJ (1975). Apical dominant. Annual Review of Plant Physiology, 26,341-367.
[32]	Reekie EG (1991). Cost of seed versus rhizome production in Agropyron repens. Canadian Journal of Botany, 69,2678-2683.
[33]	Riba M (1998). Effects of intensity and frequency of crown damage on resprouting of Erica arborea L.(Ericaceae) . Acta Oecologica, 19,9-16.
[34]	Sacchi CF, Connor EF (1999). Changes in reproduction and architecture in flowering dogwood, Cornus florida, after attack by the dogwood club gall, Resseliella clavula. Oikos, 86,138-146.
[35]	Salemaa M, Vanha-Majamaa I, Gardner PJ (1999). Compensatory growth of two clonal dwarf shrubs, Arctostaphylos uva- ursi and Vaccinium uliginosum in a heavy metal polluted environment . Plant Ecology, 141,79-91.
[36]	Saruwatari MW, Davis SD (1989). Tissue water relations of three chaparral shrub species after wild-fire. Oecologia, 80,303-308.
[37]	Schier DA (1972). Apical dominance in multishoot cultures from aspen roots. Forest Science, 18,147-149.
[38]	Shi ZY (史竹叶), Liu WZ (刘文兆), Guo SL (郭胜利), Li FM (李凤民) (2003). Moisture properties in soil profiles and their relation to land form at Zhonglianchuan watershed. Agricultural Research in the Arid Areas (干旱地区农业研究), 21(4),101-104. (in Chinese with English abstract)
[39]	Simons AM, Johnston MO (1999). The cost of compensation. American Naturalist, 153,683-687.
[40]	Sutherland S, Vickery RKJ (1988). Trade-offs between sexual and asexual reproduction in the genus Mimulus. Oecologia, 76,330-335. DOI URL PMID
[41]	Trumble JT, Kolodney-Hirsh DM, Ting IP (1993). Plant compensation for arthropod herbivory. Annual Review of Entomology, 38,93-119.
[42]	van der Heyden F Stock WD (1996). Nonstructural carbohydrate allocation following differences frequencies of simulated browsing in three semi-arid shrub. Oecologia, 102,238-245. DOI URL PMID
[43]	Wang MB (王孟本), Li HJ (李洪建), Chai BF (柴宝峰) (1996). Water ecophysiological characteristics of Caragana korshinskii. Acta Phytoecologica Sinica (植物生态学报), 20,494-501. (in Chinese with English abstract)
[44]	Wang QZ (王全珍), Li QF (李青丰), Cui J(崔键), Wang YL (王月林), Bai RS (白日升), Dong ZF (董占峰) (2001). Path-coefficient analysis of seed yield with main agronomic charaters in Caragana korshinskii. Grassland of China (中国草地), 23(3),35-37. (in Chinese with English abstract)
[45]	Wellington AB (1984). Leaf water potentials, fire and the regeneration of mallee eucalypts in semi-arid, south-eastern Australia. Oecologia, 64,360-362. DOI URL PMID
[46]	Westley LC (1993). The effect of inflorescence bud removal on tuber production in Helianthus tuberosus L. (Asteraceae). Ecology, 74,2136-2144.