J Integr Plant Biol. ›› 1963, Vol. 11 ›› Issue (4): -.
• Research Articles •
Yu Shu-weng, Wang Huai-chi, Kung Tsan-hsia, Sung Ting-sheng and Chien Ren
The removal of ear from the main stem or the tiller of wheat plant at earing stage induces its
assimilate to go to the ear of another stalk on the same plant, so that the later is nourished
supplementarily. By means of this method an investigation on the effect of food materials supply
on the weight of grains was carried out. Even at favorable ripening condition, to enrich the supply
of food materials to the developing ear results in a considerable increase of the weight of wheat
grains. This result does not agree with the conclusion of Tumanov. The mean 1000-grain weight of
the tested wheat variety “Nang-dae 2419” has increased to 59.8 g., a record about 50% heavier than
its normal level (40 g). The differences of the average weight of grains between upper and middle
and lower parts of the ear are not due entirely to the insufficient supply of food materials.
There is little or no movement of assimilates from ear-bearing tiller to main stem or vice verse after
earing stage. Under conditions of ear removal or severe defoliation of either main stem or tiller, net
translocation takes place from the stalk of high to low carbohydrate production. This indicates that
there exists a readjusting mechanism of translocation between stalks on the same wheat plant.
Yu Shu-weng, Wang Huai-chi, Kung Tsan-hsia, Sung Ting-sheng and Chien Ren. Effect of Food Materials Supply on the Development of Wheat Grains and Interrelationship of Main Stem and Tiller in Wheats[J]. J Integr Plant Biol., 1963, 11(4): -.
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