Fruit and seed diversity of introduced Phoenix dactylifera in Yuanjiang of Yunnan Province
[Objective] Analysis of diversity of fruit and seed traits (FSTs) of 32 P . dactylifera plants introduced in Yuanjiang, Yunnan Province was carried out, and the excellent single plant in the population was preliminarily identified, which provided the basis for further research and breeding of impr...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Science Press
2025-01-01
|
| Series: | Xibei zhiwu xuebao |
| Subjects: | |
| Online Access: | http://xbzwxb.alljournal.net/xbzwxb/article/abstract/20240340?st=article_issue |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | [Objective] Analysis of diversity of fruit and seed traits (FSTs) of 32 P . dactylifera plants introduced
in Yuanjiang, Yunnan Province was carried out, and the excellent single plant in the population
was preliminarily identified, which provided the basis for further research and breeding of improved varieties.
[Methods] 11 parameters of 32 P . dactylifera plants were measured. The methods of Shannon-
Wiener index and principal component analysis etc. were employed to interpret the diversity of FSTs, and
primarily to determine the excellent individual plants in the population. [Results] The mean transverse and
longitudinal diameters (TD and LD) of fruits, single fruit dry weight (SFDM), and fruit edible rates
(FER) of the 32 P . dactylifera plants were 1.9-2.7 cm, 2.9-4.2 cm, 1.9-5.6 g, and 77.8%-
94.9%, respectively; the coefficient of variation (CV) for fresh seed weight (FSW) was the highest
(29.9%), followed by SFDM (29.7%), with CV of FER the lowest (5.3%). SFDM was significantly
positively correlated with the other parameters (P <0.05 or P <0.01). The FER was significantly negatively
correlated with fruit moisture content, TD and LD of seed, seed fresh weight, and seed moisture
content (P <0.01). A comprehensive score of ≥1.000 was identified as the breeding standard for improved
varieties, with 5 plants selected from 32 individual plants, which accounting for 15.6% of the total
plants. [Conclusion] The fruit and seed variety of the single plant of P . dactylifera is rich, and the proportion
of excellent single plant in the population is low, so the breeding of good varieties is important to
increase its yield and value. |
|---|---|
| ISSN: | 1000-4025 |