A Developmental Analysis of Heterosis in Lycopersicon. Ii. The Role of the Apical Meristem in Heterosis

Whaley, W. Gordon

doi:10.1002/j.1537-2197.1939.tb09336.x

Cited by 22 publications

(14 citation statements)

References 15 publications

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“…Seasonal studies made plants from various families. Anatomical studies on angiosperms (Foster, 1935;Whaley, 1939;by Sinnott and Bailey (1914) led to the conclusion Reeve, 1948) describe some variation in the apex. that there was an intimate connection between This study of Liriodendron revealed no seasonal stipules and nodal anatomy, and resulted in the changes in the configuration of the shoot apex and definition that "stipules are integral portions of hence is not in agreement with the above-mentioned the base of the leaf."…”

mentioning

confidence: 99%

Structure and Development of the Vegetative Shoot Tip of Liriodendron Tulipifera L.

Millington

Gunckel

1950

American J of Botany

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confidence: 99%

Structure and Development of the Vegetative Shoot Tip of Liriodendron Tulipifera L.

Millington

Gunckel

1950

American J of Botany

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“…Plumular meristem size in heterotic maize was found to be no greater than that of the larger parent while, in one pedigree, nuclear size in the plumular meristems of the hybrid was significantly greater than in the larger parent (Bindloss, 1938). Whaley (1939b) found no relationship between volume of the meristem and degree of hybrid vigor in the embryo or during development of tomatoes. He further observed that cell and nuclear size decreased during development, but that this decrease took place more rapidly in the inbred parents.…”

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confidence: 69%

“…He further observed that cell and nuclear size decreased during development, but that this decrease took place more rapidly in the inbred parents. In an earlier paper, Whaley (1939a) reported that heterosis produced its effect on total plant size of tomatoes. Size of fruits was not increased by heterosis, but they were produced in greater number.…”

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confidence: 99%

A Developmental Study of Maize With Particular Reference to Hybrid Vigor

Weaver

1946

American J of Botany

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“…A similar reduction in size of cells was reported by Kliem (1936) in Avena sativa and by Sharman (1945) in Agropyron. Whaley (1939) also reported a decrease in size of cells of the meristem of Lycopersicum from younger to older stages. Abbe et at.…”

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confidence: 85%

A Developmental Study of the Apical Meristem in Four Varieties of Avena Sativa Grown at Two Temperatures

Hamilton¹

1948

American J of Botany

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PREVIOUS STUDIES of the meristem in the Gramineae have given little attention to varietal differences and the influence of temperature in early development of the shoot. This study was undertaken to determine what ontogenetic differences are present in the early development of four varieties of Avena sativa and what effect temperature may have on the development of each variety. Four varieties including a brachitic dwarf were grown at 16°C. and 28°C. The size, structure, and form of the mature oat plant is controlled by the pattern of differentiation from the meristem during formative stages. Therefore a study of the meristem should be of value in understanding the morphology of the mature plant. All the leaves are initiated during the first 3 weeks in the four varieties growing at both high and low temperatures. At the high temperature, foliage development is somewhat more rapid and cell division, resulting in initiation of each new leaf primordia, is observed 2 or 3 days earlier than at the low temperature. The 3-week period of leaf initiation is considered the vegetative or formative period. Panicle differentiation follows rapidly after the initiation of all leaf primordia. At 28°C. panicle formation is inhibited. Thus environmental factors in the early stages have a determining effect on the mature plant. Varietal differences which are prominent in the mature stages are also apparent in the structural development of the shoot.

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A Developmental Analysis of Heterosis in Lycopersicon. Ii. The Role of the Apical Meristem in Heterosis

Cited by 22 publications

References 15 publications

Structure and Development of the Vegetative Shoot Tip of Liriodendron Tulipifera L.

Structure and Development of the Vegetative Shoot Tip of Liriodendron Tulipifera L.

A Developmental Study of Maize With Particular Reference to Hybrid Vigor

A Developmental Study of the Apical Meristem in Four Varieties of Avena Sativa Grown at Two Temperatures

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