Work

Foliar Application of Boron to Almond Trees Affects Pollen Quality

Year: 2000

Type: article

Abstract: The effect of boron (B) on in vivo and in vitro development of almond [ Prunus dulcis (Mill.) D.A. Webb (syn. P. amygdalus Batsch )] pollen and pollen tubes and the resultant effect on fruit set was studied in mature trees. The cultivars Mono (pistil donor) and Butte (pollinizer) in an orchard with low soil B in Fresno, California were sprayed with B at 0, 0.8, 1.7, or 2.5 kg·ha -1 during Fall 1993. Pollen viability as indicated by the fluorescein diacetate method (FDA) was >85% and was not affected by field-applied B, however, in vivo pollen germination and tube growth were enhanced by foliar-applied B. More effect of applied B on in vivo growth appeared as pollen tubes progressed toward the ovary. For in vitro germination, foliar-applied B reduced bursting of tubes, and addition of B to the culture media significantly increased pollen germination and pollen tube growth.

Source: Journal of the American Society for Horticultural Science

DOI: 10.21273/jashs.125.2.265

Authors: A.M.S. Nyomora, P.H. Brown, K. Pinney, V.S. Polito

Institutions: Ministry of Agriculture, Food Security and Cooperatives, University of California, Davis

Language: English

Topic: Plant Reproductive Biology

Subfield: Molecular Biology

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

SDG: Zero hunger

Open Access status: gold

Estimated APC paid: $3,500