Effects of irrigation on seedling emergence and seedling survival of a desert shrub Haloxylon ammodendron (Chenopodiaceae)
Kazuo Tobe A D , Xiaoming Li B and Kenji Omasa CA Laboratory of Intellectual Fundamentals for Environmental Studies, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan.
B School of Environmental Science and Engineering, Shandong University, No. 27, South Shada Road, Jinan 250100, P.R. China.
C Graduate School of Agriculture and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-8657, Japan.
D Corresponding author. Email: tobe@nies.go.jp
Australian Journal of Botany 53(6) 529-534 https://doi.org/10.1071/BT04210
Submitted: 13 December 2004 Accepted: 19 June 2005 Published: 30 September 2005
Abstract
Haloxylon ammodendron (C.A. Mey) Bunge (Chenopodiaceae) is a shrub occurring on desert sand dunes in China. Seedling emergence and seedling survival were investigated by sowing seeds at different depths (0, 2.5, 5.0 or 10 mm) in fine or coarse sand in pots irrigated under different regimes. Seed burial in sand was required for seedling establishment of this species. Seedling emergence depended greatly on seed burial depth, sand type, and irrigation regime; this appeared to be due to (1) seeds or seedlings suffering from oxygen or moisture deficiency depending on the air : moisture ratio in sand, and/or (2) higher moisture content in sand resulting in hardening of the sand and obstruction of seedling growth. Increased irrigation resulted in longer survival of emerging seedlings because sand was moistened more deeply, and moisture in deeper sand persisted longer. The results suggest that the infrequent and light precipitation common in desert environments is likely to cause germination of many of the buried seeds, but is insufficient for emerging seedlings to survive. It is suggested that water from melting snow in early spring is crucial in enabling seedling establishment of this species in the deserts of China.
Ackerman TL
(1979) Germination and survival of perennial plant species in the Mojave Desert. The Southwestern Naturalist 24, 399–408.
Al-Ani A,
Bruzau F,
Raymond P,
Saint-Ges V,
Leblanc JM, Pradet A
(1985) Germination, respiration, and adenylate energy charge of seeds at various oxygen partial pressures. Plant Physiology 79, 885–890.
Barley KP, Greacen EL
(1967) Mechanical resistance as a soil factor influencing the growth of roots and underground shoots. Advances in Agronomy 19, 1–43.
Batanouny KH, Zieogler H
(1971) Eco-physiological studies on desert plants. II. Germination of Zygophyllum coccineum L. seeds under different conditions. Oecologia 8, 52–63.
| Crossref | GoogleScholarGoogle Scholar |
Crawford RMM
(1977) Tolerance of anoxia and ethanol metabolism in germinating seeds. New Phytologist 79, 511–517.
Crawford, RMM (1992). Oxygen availability as an ecological limit to plant distribution. In ‘Advances in biological research. Vol. 23’. pp. 93–185. (Academic Press: London)
Fu, L ,
and
Jin, J (Eds) (1992).
Gill WR, Miller RD
(1956) A method for study of the influence of mechanical impedance and aeration on the growth of seedling roots. Soil Science Society of America Proceedings 20, 154–157.
Gutterman Y, Evenari M
(1994) The influences of amounts and distribution of irrigation during the hot and dry season on emergence and survival of some desert winter annual plants in the Negev Desert. Israel Journal of Plant Sciences 42, 1–14.
Hegarty TW
(1978) The physiology of seed hydration and dehydration, and the relation between water stress and the control of germination: a review. Plant, Cell & Environment 1, 101–119.
Heichel GH, Day PR
(1972) Dark germination and seedling growth in monocots and dicots of different photosynthetic efficiencies in 2% and 20.9% O2. Plant Physiology 49, 280–283.
Hornbaker DJ,
Albert R,
Albert I,
Barabási A-L, Schiffer P
(1997) What keeps sandcastles standing? Nature 387, 765.
| Crossref | GoogleScholarGoogle Scholar |
Koller D
(1956) Germination regulating-mechanisms in some desert seeds. III. Calligonum comosum L’Her. Ecology 37, 430–433.
Krumbein WC
(1959) The ‘sorting out’ of geological variables illustrated by regression analysis of factors controlling beach firmness. Journal of Sedimentary Petrology 29, 575–587.
Loria M, Noy-Meir I
(1980) Dynamics of some annual populations in a desert loess plain. Israel Journal of Botany 28, 211–225.
Maun MA, Riach S
(1981) Morphology of caryopses, seedlings and seedling emergence of the grass Calamovilfa longifolia from various depths in sand. Oecologia 49, 137–142.
| Crossref | GoogleScholarGoogle Scholar |
Maun MA, Lapierre J
(1986) Effects of burial by sand on seed germination and seedling emergence of four dune species. American Journal of Botany 73, 450–455.
Morinaga T
(1926) Germination of seeds under water. American Journal of Botany 13, 126–140.
Sedgley RH, Barley KP
(1963) The effect of a small axial pressure on the growth of the epicotyl of Vicia faba var. minor Beck. Australian Journal of Plant Science 16, 19–27.
Sharma TP, Sen DN
(1989) A new report on abnormally fast germinating seeds of Haloxylon spp.—an ecological adaptation to saline habitat. Current Science 58, 382–385.
Taylor HM, Gardner HR
(1963) Penetration of cotton seedling taproots as influenced by bulk density, moisture content, and strength of soil. Soil Science 96, 153–156.
Tevis L
(1958) A population of desert ephemerals germinated by less than one inch of rain. Ecology 39, 688–695.
Tobe K,
Li X, Omasa K
(2000a) Effects of sodium chloride on seed germination and growth of two Chinese desert shrubs, Haloxylon ammodendron and H. persicum (Chenopodiaceae). Australian Journal of Botany 48, 455–460.
Tobe K,
Li X, Omasa K
(2000b) Seed germination and radicle growth of a halophyte, Kalidium caspicum (Chenopodiaceae). Annals of Botany 85, 391–396.
| Crossref | GoogleScholarGoogle Scholar |
Tobe K,
Zhang L, Omasa K
(2005) Seed germination and seedling emergence of three annuals growing on desert sand dunes in China. Annals of Botany 95, 649–659.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
VanderZee D, Kennedy RA
(1981) Germination and seedling growth in Echinochloa crus-galli var. oryzicola under anoxic conditions: structural aspects. American Journal of Botany 68, 1269–1277.
Wallace A,
Rhods WA, Frolich EF
(1968) Germination behavior of Salsola as influenced by temperature, moisture, depth of planting, and gamma irradiation. Agronomy Journal 60, 76–78.
Walter, H ,
and
Box, EO (1983). The deserts of Central Asia. In ‘Ecosystems of the world 5, temperate deserts and semi-deserts’. pp. 193–236. (Elsevier Scientific Publishing: Amsterdam)
Went FW
(1948) Ecology of desert plants. I. Observations on germination in the Joshua Tree National Monument, California. Ecology 29, 242–253.
