The effect of photothermal environment on growth and flowering in dwarf pigeon pea (Cajanus cajan(L.) Millsp.) andAtylosia sericeaBenth.ex Bak.
✍ Scribed by Musa El S. Mohamed; R. P. Ariyanayagam
- Publisher
- Springer
- Year
- 1983
- Tongue
- English
- Weight
- 368 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0014-2336
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✦ Synopsis
The effect of daylength (14 h) and high temperature (34°C) on the vegetative and flowering behaviour of five dwarf (Ds, D,, D,, AD,, and pp 29) pigeon pea cultivars and one genotype of Atylosia sericea was studied.
Long days/high temperature increased plant height and average internode length in all six cultivars tested. The number of days to flowering was increased for cultivars AD,, and pp 29 whereas cultivars Di, D2 and Atylosia sericea did not flower under these conditions.
Cultivar Ds flowered earlier in the long days/high temperature than long days/ambient temperature. The results of this study suggest that dwarfing genes and low photoperiod insensitivity in pigeon pea could be combined with the large number of nodes (flowering sites) in A. sericea. This may provide a genotype which could reduce the importance ofthe pre-flowering (vegetative) growth phase experienced in pigeon pea.