Seed Sizes, Invigorization Substances, and Vigor Tests in Cold Tolerant Sorghums

Valadez-Gutiérrez, J. and Mendoza-Onofre, L. E. and Córdova-Téllez, L. and et al, . (2007) Seed Sizes, Invigorization Substances, and Vigor Tests in Cold Tolerant Sorghums. Agrociencia, 41 (2). pp. 169-179.

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Slow growth during the field establishment of cold tolerant sorghum (Sorghum bicolor L. Moench) in the Central High Valleys of México, has been attributed to the effect of low temperatures and to small seed size. From April to May of 2005, under laboratory conditions, 36 treatments were evaluated in a complete randomized block design with four replicates, product of the factorial combination of three genotypes (VA-110 and two maintainer lines, B1 and B9), three seed sizes (large, medium and small) and four types of seed invigorization (osmoconditioning, Maxi Grow T.S.®, potassium nitrate, and control), in three vigor tests: 1) standard germination; 2) cold; 3) modified cold, in which the germination phase was maintained without light. The experimental unit consisted of 25 seeds. The variables analyzed were: percentage of germination, abnormal seedlings, and dead seeds; average length (cm) of plumule and radicle per seedling; and total dry weight (mg) of plumules, radicles and remains of seeds of each experimental unit.

Item Type: Article
Uncontrolled Keywords: Sorghum bicolour L. Moench, osmotic conditioning, germination, cold test.
Author Affiliation: Semillas, Campus Montecillo. Colegio de Postgraduados. 56230, Montecillo, Estado de México.
Subjects: Crop Improvement > Seed Technology
Divisions: Sorghum
Depositing User: Mr Siva Shankar
Date Deposited: 07 Aug 2012 07:52
Last Modified: 07 Aug 2012 07:53
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