+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Cotton emergence force as affected by soil temperature moisture and compression



Cotton emergence force as affected by soil temperature moisture and compression



Crop Science 31(2): 405-409



Emergence force of a seedling is a major factor influencing the ability of the seedling to emerge through a surface soil crust. This study was conducted to evaluate effects of soil physical conditions on the maximum emergence force of cotton [Gossypium hirsutum L.]. Effects of soil temperature and moisture on the emergence force were studied when the seedling was supported laterally to prevent buckling. The effect of compression of the top soil was investigated using a plate on the soil surface to simulate a crust. Measured emergence forces when the seedlings were laterally supported were greater than previously reported for cotton. Maximum emergence force varied quadratically with increases in soil temperature and moisture. The highest force was 11.4 N for a temperature of 28.5.degree. C and a soil water potential of -10 J kg-1. Maximum emergence force increased linearly with the hypocotyl cross-sectional area, while calculated turgor potentials of hypocotyl cells were 768, 756, and 518 J kg-1 at soil water potentials of -10, -30, and -300 J kg-1, respectively. The emergence force was greatly reduced when lateral support was not provided. A compression pressure of 13.8 kPa on the top soil increased emergence force from 0.9 N at zero compression to 2.2 N, only .apprxeq. 20% of the maximum force observed with adequate lateral support.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 007165739

Download citation: RISBibTeXText


Related references

Emergence of overwintered pink bollworm in Arizona. Jour Econ Ent 54(1): 192, 1961

Sugarbeet diseases: their present status and future prospect of chemical control in India. Pesticides 8 (4) 40-42, 1974

The emergence of the winter moth O. brumata as one of the last entomophenological phenomena of the late autumn. Polskie Pismo ent, pt. 1-2, 143-149, 1965

The effect of soil temperature and moisture on the dynamics of the form of nitrogen.. Trudy karel. Fil. Akad. Nauk 28: 95-107, 1960

Emergence of differentiated subclones from a human salivary adenocarcinoma cell clone in culture after treatment with sodium butyrate. Cancer Research 46(2): 770-777, 1986

Water uptake and hatching in the potato cyst nematode, Heterodera rostochiensis, and the root knot nematode, Meloidogyne incognita. Journal of Experimental Biology 61(3): 773-779, 1974

Effect of temperature and soil moisture status during seed development on soybean seed development on soybean seed isoflavone concentration and composition. Crop science t- 45(5): 1934-1940, 2005

The effect of temperature, photoperiod, and freeze treatment on th morphology of Chrysanthemum x morifolium Ramat. Astrid. Journal of the American Society for Horticultural Science 108(1): 138-141, 1983

Pink bollworm: diapause in the equatorial regions of Brazil. Southwestern Entomologist 104: 283-288, 1985

Hypocortisolemia in children undergoing evaluation for growth hormone deficiency. Journal of Clinical Endocrinology and Metabolism 71(4): 952-957, 1990

Pink bollworm pectinophora gossypiella movement and distribution of diapause and nondiapause larvae in soil and moth emergence after pupal burial. Environmental Entomology 8(5): 782-785, 1979

Soil temperature observations at Morrinsville. N.Z. J. Sa. Tech 19: 262-267, 1937

Germination and emergence of Virginia buttonweed (Diodia virginiana). Weed Science 39(1): 37-41, 1991

Agronomic studies on regional difference in growth and yield of rice in the Honam Area. 3. The effect of transplanting date and fertilizer application method on dry matter production and yield of rice. Research Reports of the Rural Development Administration, Rice 32(3): 29-41, 1990

Effects of petroleum microorganisms, as diet, upon the growth rate and blood properties of sea bream, Chrysophrys major Temminck and Schlegel. Journal of the Faculty of Fisheries and Animal Husbandry Hiroshima University. 10: 1, 21-27, 1971