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Floral Biology Studies in Habanero pepper (Capsicum chinense Jacq.) to Implement in a Cross-Breeding Program

Unidad de Bioquímica y Bilogía Molecular de Plantas, Centro de Investigación Científica de Yucatán (CICY), Calle 43 No. 130, Chuburná de Hidalgo, Mérida CP 97205, Yucatán, Mexico
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Agriculture 2019, 9(12), 249; https://doi.org/10.3390/agriculture9120249
Received: 7 October 2019 / Revised: 8 November 2019 / Accepted: 12 November 2019 / Published: 26 November 2019
(This article belongs to the Special Issue Vegetable Crops Breeding)
Knowledge of the reproductive biology of a species is fundamental in order to develop an efficient program of genetic improvement by hybridization. The viability of the pollen, anther dehiscence, receptivity of the stigma and the anthesis of 12 improved lines of Habanero pepper were studied to develop a cross-breeding program. Among the results, the greatest number of flowers in anthesis was quantified at 8:00 a.m. for most genotypes. The dehiscence of the anther differed significantly in stages evaluated, observing in flower buds 100% of the closed anthers. The receptivity was positive in all the stages evaluated (before, during and after anthesis) and in all the genotypes, the most outstanding being the genotype AKN-08, which presented 100% of receptivity in the three stages evaluated. The viability of the pollen varied among the different conservation times evaluated (0, 24 and 48 h) while the highest percentage of viability (80%) and the largest number of seeds per fruit (56) were obtained when recently collected pollen was used (0 time). These results will have an important repercussion on the improvement of the Habanero pepper by increasing the efficiency of the programs to obtain hybrids and/or improved varieties. View Full-Text
Keywords: anthesis; anthers dehiscence; receptivity stigma; viability pollen; Habanero pepper anthesis; anthers dehiscence; receptivity stigma; viability pollen; Habanero pepper
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Peña-Yam, L.P.; Muñoz-Ramírez, L.S.; Avilés-Viñas, S.A.; Canto-Flick, A.; Guzmán-Antonio, A.; Santana-Buzzy, N. Floral Biology Studies in Habanero pepper (Capsicum chinense Jacq.) to Implement in a Cross-Breeding Program. Agriculture 2019, 9, 249.

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