Richard E. Bir

Works (5)

Updated: February 10th, 2025 14:29

2009 journal article

Crossability, cytogenetics, and reproductive pathways in Rudbeckia subgenus Rudbeckia

HortScience, 44(1), 44–48.

By: I. Palmer n, T. Ranney n , N. Lynch n  & R. Bir n

author keywords: apomixis; coneflower; cytology; DNA content; flow cytometry; relative genome size; plant breeding; polyploidy; pseudogamy
TL;DR: Although most taxa had low self-fertility, seedlings (with genomic sizes similar to their maternal parent) resulted after interspecific crosspollination, indicating that pseudogamy is one reproductive pathway in Rudbeckia species. (via Semantic Scholar)
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15. Life on Land (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

1999 journal article

Increasing rhododendron flowering

Nursery Management & Production, 15(11), 31.

By: R. Bir

Source: NC State University Libraries
Added: August 6, 2018

1997 journal article

Carryover affects of sumagic treatments on Kalmia latifolia cultivars

Proceedings of Southern Nurserymen's Association Research Conference Annual Report, 42(1997), 330–331.

By: R. Bir, T. Ranney  & J. Conner

Source: NC State University Libraries
Added: August 6, 2018

1996 journal article

Rooting stem cuttings of some eastern native rhododendrons

American Rhododendron Society Journal, 50(2), 65.

By: R. Bir

Source: NC State University Libraries
Added: August 6, 2018

1989 journal article

Spray water or let it drip?

American Nurseryman, 169(3), 80.

By: R. Bir

Source: NC State University Libraries
Added: August 6, 2018

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