The effects on grain production of cultivar characteristics, nitrogen supply and some climatic factors were studied in field trials and under controlled environmental conditions. A rise in temperature considerably increased the rate of grain growth but shortened its duration, whilst the positive effect of light intensity on the grain yield was greater at high temperatures.<p/>Additional nitrogen raised post-floral photosynthesis. The nitrogen assimilation by the grains was increased by warmth, resulting in a higher nitrogen concentration of the grains and in earlier senescence of the leaves. Differences between a semi-dwarf cultivar and a standard were mainly expressed in the dry matter distribution before and after anthesis and so in a higher harvest-index.
|Qualification||Doctor of Philosophy|
|Award date||10 Nov 1978|
|Place of Publication||Wageningen|
|Publication status||Published - 1978|
- triticum aestivum
- cultural methods