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Aspects of Germination, Emergence, and Seed Production of Three Ipomoea Taxa

Published online by Cambridge University Press:  12 June 2017

L. F. Gomes ,
J. M. Chandler  and
C. E. Vaughan
L. F. Gomes
Affiliation:
Mississippi State Univ.
J. M. Chandler
Affiliation:
South. Weed Sci. Lab., Agric. Res. Serv., U. S. Dep. Agric., Stoneville, MS 38776
C. E. Vaughan
Affiliation:
Mississippi State Univ., Mississippi State, MS 39762
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Abstract

The influence of seed age, planting depth, and temperature on the germination and emergence of ivyleaf morningglory [Ipomoea hederacea (L.) Jacq. var. hederacea], white morningglory (Ipomoea lacunosa L.), and entireleaf morningglory (Ipomoea hederacea var. integriuscula Gray) was studied by using pure seed of each taxa that were collected in 1972, 1973, and 1974. Germination of acid-scarified white and entireleaf morningglory seed ranged from 64 to 98% at continuous 20, 25, 30, 35, and 40 C and at an alternating 20/30 C cycle. The ivyleaf morningglory germination range was 50 to 98% at these temperatures, except at 40 C germination was <25%. Germination of nonscarified seed was generally 30 to 60% lower than scarified seed for the three taxa. Germination of seed collected in 1972 for all three taxa was less than 10% with 6 days of exposure to 45 C and 100% relative humidity, and germination of seed collected in 1973 and 1974 ceased with 12 days of exposure. Maximum emergence for all taxa occurred at planting depths of 1.3 and 2.5 cm. Seed age influenced seedling emergence of white morningglory and ivyleaf morningglory but not entireleaf morningglory. Total numbers of seed produced per plant for white, entireleaf, and ivyleaf morningglory were 15,200, 14,600, and 5,800, respectively.

Keywords

Seed agetemperatureplanting depthnonscarifiedscarified
Type
Research Article
Information
Weed Science , Volume 26 , Issue 3 , May 1978 , pp. 245 - 248
Copyright
Copyright © 1978 by the Weed Science Society of America 

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References

Literature Cited

1. Association of Official Seed Analysts. 1970. Rules for testing seeds. Proc. Assoc. Off. Seed Anal. 60:62.Google Scholar
2. Bruns, V. F. and Rasmussen, L. W. 1953. The effects of fresh water storage on germination of certain weed seeds. I. White top, Russian knapweed, Canada thistle, morningglory, and poverty weed. Weeds 2:138–147.CrossRefGoogle Scholar
3. Bruns, V. F. and Rasmussen, L. W. 1957. The effects of fresh water storage on germination of certain weed seeds. II. White top, Russian knapweed, Canada thistle, morningglory, and poverty weed. Weeds 5:20–24.CrossRefGoogle Scholar
4. Chandler, J. M., Munson, R. L., and Vaughan, C. E. 1977. Purple moonflower: Emergence, growth, reproduction. Weed Sci. 25:163–167.Google Scholar
5. Cole, W. S. and Coats, C. E. 1973. Tall morningglory germination response to herbicides and temperature. Weed Sci. 21:443–446.Google Scholar
6. Crocker, W. 1938. Life span of seeds. Bot. Rev. 4:235–274.Google Scholar
7. Delouche, J. C. and Baskin, C. C. 1973. Accelerated aging technique for predicting the relative storability of seed lots. Seed Sci. and Technol. 1:447–452.Google Scholar
8. Lewis, J. 1961. The influence of water level, soil depth and type on the survival of crop and weed seed. Proc. Int. Seed Test. Assoc. 26:68–85.Google Scholar
9. Stoller, E. W. and Wax, L. M. 1974. Dormancy changes and fate of some annual weed seeds in the soil. Weed Sci. 22:151–155.CrossRefGoogle Scholar
10. Toole, E. H. and Brown, E. 1946. Final results of the Duvel buried seed experiment. J. Agric. Res. 72:201–210.Google Scholar
11. Wilson, H. P. and Cole, R. H. 1966. Morningglory competition in soybeans. Weeds 14:49–51.CrossRefGoogle Scholar