Coherent Identifier About this item: 20.500.12592/d8q6cv

The Indian Journal of Agricultural Science December 1951




Differentiation of epidermal cells Time of observation Place of differentiation on the ovule Nature of differentiation From the chalazal region to the equator and upper part of the ovule towards the micropyle. [...] It could be made out from the above observations that three crops of hairs were produced on the ovules from the first to the eleventh day after flowering ; that each wave of production started from the chalazal end and extended towark the micropyle the exception being that the first wave stopped short of the mitropylar region with the result that it appeared there were only two crops of hairs at [...] In the case of Asiatic cottons the number of hair initials at the time of flower opening were fewer and were interspersed with greater number of undifferentiated cells with the result that the bases of the hair cells were not pressed closely at the sides. [...] They differed only in the degree of the lengthening of the epidermal hairs and in the numbers of stomatal hairs prduced. [...] The examination of the lintless types brought out the fact that all these types except the Hirsutum lintless possessed the capacity to differentiate the epidermal cells into hairs and the hair cells underwent all the preparatory cytoplasmic and nuclear changes for the differentiation.


agriculture environment

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