Incorporation of 14CO2 into carbohydrates in the developing kernels of triticale (×Triticosecale Wittmack) in relation to kernel shrivelling

Agrawal, Pramod K.; Fock, Heinrich P.

doi:10.1016/0378-4290(85)90022-x

Cited by 1 publication

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“…Salminen & Hill (1978) demonstrated that lines with a high proportion of shrivelled grains had a lower rate and a shorter duration of grain filling. The availability of source carbohydrates appeared not to be responsible for the occurrence of shrivelled grain (Agrawal & Fock 1984) nor did restricted starch accumulation in the grain appear to be caused by limits on translocation of assimilates (Agrawal & Fock 1985). More recent lines of triticale have fewer shrivelled grains (Skovmand et al 1984).…”

Section: Discussionmentioning

confidence: 90%

Effects of nitrogen and the plant growth regulator chlormequat on grain size, nitrogen content and amino acid composition of triticale

Naylor

Stephen²

1993

J. Agric. Sci.

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SUMMARYField experiments were conducted in Scotland between 1985 and 1987 to examine the responses of mean grain weight and nitrogen content of triticale cultivars to levels of applied nitrogen from 0 to 180 kg N/ha and the plant growth regulator chlormequat. Cultivar differences were seen for both these characters. Mean grain weight generally declined as yield increased, whether with nitrogen or with chlormequat. Nitrogen content of the grain decreased as grain size increased. Nitrogen recovery (g/m2) generally increased with applied nitrogen and was unaffected by chlormequat application. Within a grain sample from an individual treatment, however, grain size was not related to nitrogen content.The response of nitrogen content is interpreted as differential dilution of nitrogen in the grain by different amounts of carbohydrate. This is probably related to the frequent occurrence of shrivelled grain in triticale.

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