Academic Journal

Growing Environment and Heat Treatment Effects on Intra- and Interspecific Pollination in Chile Pepper (Capsicum spp.)

التفاصيل البيبلوغرافية
العنوان: Growing Environment and Heat Treatment Effects on Intra- and Interspecific Pollination in Chile Pepper (Capsicum spp.)
المؤلفون: Tsung Han Lin, Shih Wen Lin, Yen Wei Wang, Maarten van Zonneveld, Derek W. Barchenger
المصدر: Agronomy; Volume 11; Issue 7; Pages: 1275
بيانات النشر: Multidisciplinary Digital Publishing Institute
سنة النشر: 2021
المجموعة: MDPI Open Access Publishing
مصطلحات موضوعية: crop wild relatives, cross-compatibility, heat tolerance, pollen viability
جغرافية الموضوع: agris
الوصف: Heat tolerance is important for the sustainable production of many crops, including chile pepper. Tolerance to high temperature is complex and involves various component traits, with pollen viability being among the most important. in vitro pollen assays for heat tolerance have been widely used in chile pepper; however, associations between the pollen treatment and pollination have not been widely explored. The objectives of this study were to validate the utility of in vitro heat stress pollen characterization through in vivo pollination during summer and winter seasons and to evaluate the cross-compatibility among wild and domesticated species to initiate introgression population development. Seven entries of wild and domestic Capsicum species grown during the summer and winter seasons were used to evaluate pollination success rate. Pollen was either used directly or treated at 38 °C for four hours before making reciprocal self- and cross-pollination among all the entries. Significant associations between in vitro pollen treatment and pollination success rate during summer and winter seasons were identified. Heat treatment was a greater contributor to variability than the growing environment, which validates previous reports on the usefulness of studying pollen in vitro in selection for heat tolerance. Accessions of the wild progenitor C. annuum var glabriusculum, PBC 1969 and PBC 1970, were identified as a potential heat-tolerant source for use in breeding and future research. This work provides a basis for future research in exploring additional heat tolerance components as well as for the development of phenotyping assays for pollen or other floral traits.
نوع الوثيقة: text
وصف الملف: application/pdf
اللغة: English
Relation: Horticultural and Floricultural Crops; https://dx.doi.org/10.3390/agronomy11071275
DOI: 10.3390/agronomy11071275
الاتاحة: https://doi.org/10.3390/agronomy11071275
Rights: https://creativecommons.org/licenses/by/4.0/
رقم الانضمام: edsbas.3AD76C91
قاعدة البيانات: BASE
الوصف
DOI:10.3390/agronomy11071275