Variation in the photoperiodic response on several characters in soybean,Glycine max(L.) Merrill

✍ Scribed by S. Shanmugasundaram

• Publisher: Springer
• Year: 1979
• Tongue: English
• Weight: 613 KB
• Volume: 28
• Category: Article
• ISSN: 0014-2336
• DOI: 10.1007/bf00056610

✦ Synopsis

The photoperiodic response on 12 characters in 40 soybean, Glycine max (L.) MERRILL, cultivars were investigated using 10-hour (short day) and 16-hour (long day) photoperiods. Seventeen cultivars showed no significant difference between photoperiods for all 12 characters. Seven cultivars showed significant difference for only one trait. Phenotypic changes in 17 cultivars may be due to factors other than photoperiod. Number of pods per plant, days to maturity, and number of nodes per plant were highly correlated with yield per plant in both photoperiods. Invariably, the cultivars which had significant differences in the numbers of flowers produced per plant between the two photoperiods also had significant differences in the numbers of pods per plant and yield. First node to flower, plant height at flowering, days to flowering, nodes at flowering, and the 100-seed weight were least influenced by the photoperiods in most of the cultivars, while the height at maturity, number of nodes at maturity, number of days to maturity, and yield were most influenced.