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Agronomy
Volume 10
Issue 4
10.3390/agronomy10040592
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Brief Report

Characterization of Flowering Time and Pollen Production in Jojoba (Simmondsia chinensis) towards a Strategy for the Selection of Elite Male Genotypes

by
Noemi Tel-Zur
1,*,
Ronen Rothschild
2,
Udi Zurgil
1 and
Yiftach Vaknin
3
1
French Associates Institute for Agriculture and Biotechnology of Drylands, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Beersheba 84990000, Israel
2
Jojoba Israel Ltd., Kibbutz Hatzerim 8542000, Israel
3
Institute of Plant Sciences, Agricultural Research Organization (ARO), Volcani Center, Rishon LeZion 7505101, Israel
*
Author to whom correspondence should be addressed.
Agronomy 2020, 10(4), 592; https://doi.org/10.3390/agronomy10040592
Submission received: 1 April 2020 / Accepted: 13 April 2020 / Published: 22 April 2020
(This article belongs to the Special Issue Germplasm Exploitation and Product Innovation of Vegetable, Aromatic and Medicinal Plants)
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Abstract

The seeds of the dioecious shrub jojoba (Simmondsia chinensis (Link) Schneider) yield a liquid wax that is in high demand for the cosmetics industry. While elite female cultivars of this species are currently clonally propagated, male plants are grown from seed, resulting in large variations in both the flowering period and the pollen viability, and hence large variation in yields. We characterized the existing male plant material in a local plantation as a platform for future selection of elite male cultivars that would produce sufficient amounts of viable pollen throughout the extended flowering period of the female cultivars. Using as a guide the number of viable pollen grains per 1-m branch, defined here as the calculated effective pollen productivity (EPP), we identified plants with an elevated EPP that flower concurrently with the female cultivars.
Keywords: dioecious; flowering time; phenological diversity; pollen viability dioecious; flowering time; phenological diversity; pollen viability

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MDPI and ACS Style

Tel-Zur, N.; Rothschild, R.; Zurgil, U.; Vaknin, Y. Characterization of Flowering Time and Pollen Production in Jojoba (Simmondsia chinensis) towards a Strategy for the Selection of Elite Male Genotypes. Agronomy 2020, 10, 592. https://doi.org/10.3390/agronomy10040592

AMA Style

Tel-Zur N, Rothschild R, Zurgil U, Vaknin Y. Characterization of Flowering Time and Pollen Production in Jojoba (Simmondsia chinensis) towards a Strategy for the Selection of Elite Male Genotypes. Agronomy. 2020; 10(4):592. https://doi.org/10.3390/agronomy10040592

Chicago/Turabian Style

Tel-Zur, Noemi, Ronen Rothschild, Udi Zurgil, and Yiftach Vaknin. 2020. "Characterization of Flowering Time and Pollen Production in Jojoba (Simmondsia chinensis) towards a Strategy for the Selection of Elite Male Genotypes" Agronomy 10, no. 4: 592. https://doi.org/10.3390/agronomy10040592

APA Style

Tel-Zur, N., Rothschild, R., Zurgil, U., & Vaknin, Y. (2020). Characterization of Flowering Time and Pollen Production in Jojoba (Simmondsia chinensis) towards a Strategy for the Selection of Elite Male Genotypes. Agronomy, 10(4), 592. https://doi.org/10.3390/agronomy10040592

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