Tillering as a factor in determining the desirable qualities of winter wheats
1912
Grantham, A.E.
Varieties of wheat vary widely in the habit of tillering, which is apparently a varietal characteristic. With tillering there seems to be associated vigor and a capacity on the part of the plant for better development under unfavorable conditions. Tillering is a character of the wheat variety which appears more or less constant; the high tillering varieties not only yielding better under poor conditions, but also surpassing the low tillering varieties under optimum environment. An increase in the number of tillers per plant within a variety as well as among varieties is accompanied by higher yield per spike. A greater length of spike and of culm is found with the high tillering plants. The quality ot the grain is closely correlated with the development of the plant as expressed by the number of tillers. The vegetative activities of the wheat plant are expressed more widely by the increase in the number of culms or tillers than by the increase in the length of culms or length of spike.
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