溫度與日射量對紫色葉菜甘藷生長性狀及植體元素之影響
Other Title
Effects of Temperature and Solar Radiation on Growth Traits and Plant Elements in Purple Leafy Sweet Potato
Journal
台灣農業研究
Journal Volume
73
Journal Issue
1
Pages
37-52
Date Issued
2024-03-04
Author(s)
Abstract
本研究以農業部農業試驗所嘉義農業試驗分所育成紫葉品系的葉菜甘藷CYY84-67 作為試驗材料，並於2016–2018 年在農業部農業試驗所農場進行試驗調查，藉由每季定植1 次連續採收3 次，2 年期間共計蒐集24個不同採收期的調查數據與氣象資料。研究目的係釐清溫度與日射量對紫色葉菜甘藷生長性狀與植體元素之影響，以期瞭解紫色葉菜甘藷之最適栽培時期，闡明溫度與日射量對植體元素之消長變化。本研究利用典型相關分析，探討2 組變數間相互關係最大的線性組合，並計算2 組變數在線性關係最大化之權重，結果顯示紫色葉菜甘藷CYY84-67 於春秋兩季的單位面積產量最高，利用典型相關分析顯示生育度日數、累加日射量及累加日夜溫差，是影響紫色葉菜甘藷其葉面積、葉乾重及莖乾重的氣象參數，其中又以累加日射量影響權重最大。此外，生育度日數、累加日射量及累加日夜溫差，也會影響紫色葉菜甘藷CYY84-67 其葉片與莖部植體元素含量的變化，其中生育度日數對葉片的鈣影響權重較大，而累加日射量對莖部的磷影響權重較高。
In this study, the purple leafy sweet potato strain CYY84-67 bred by the Chiayi Agricultural Experiment Branch was used in the field experiment from 2016 to 2018 at Taiwan Agricultural Research Institute. A total of 24 different experimental and meteorological data were collected from 3 consecutive harvests in each cultivation period within two years. The objective of this study was to study the effects of temperature and solar radiation on the growth traits and plant elements of purple leafy sweet potato to summarize the optimal cultivation periods for purple leafy sweet potato as well as to clarify the rise and fall of temperature and solar radiation on plant elements. The canonical correlation analysis was adopted to explore the linear relationship between two groups of variables, and the weight of maximizing the correlation between the two sets of variables was calculated. The results of this study showed that purple leafy sweet potato CYY84-67 had the highest yield per unit area in both spring and autumn. The growing degree days (GDD), accumulated daily solar radiation (ADSR), and accumulated diurnal temperature regimes (ADTR) were the major meteorological variables affecting leaf area, dry weight of leaves and stems in purple leafy sweet potato, and ADSR had the greatest weight. In addition, GDD, ADSR, and ADTR also affected plant element contents from the leaves and stems of purple leafy sweet potato CYY84-67. Among these meteorological variables, GDD had the greatest weight on the calcium of the leave, while ADSR had the highest weight on the phosphorus of the stem.
Subjects
紫色葉菜甘藷
溫度
日射量
生長性狀
植體元素
Purple leafy sweet potato
temperature
solar radiation
growth trait
Plant element
Publisher
農業試驗所
Type
journal article
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