Soybean Yields Response to Planting Dates and Climatic Factors
Other Title
栽培期及氣象因子對大豆產量之影響
Journal
中華農業氣象
Journal Volume
3
Journal Issue
1
Pages
9-16
Date Issued
1995-11-16
Date
1995-11-16
Author(s)
Chwen-Ming Yang
Ming-Jen Fan
楊純明
范明仁
Abstract
Yield and seed quality of soybean varied significantly in response to planting dales in Taiwan, but little research has been conducted to compare and clarify such differences. This study was carried out to clear up the variations of soybean yields from an annual cultivation at Wufeng, Taiwan, on a loamy soil. Twelve crops of soybeans (Glycine max. L.) with four genotypes, Kaohsiung selected 1 (KS1), Kaohsiung 2 (K2), Kaohsiung 3 (K3) and Kaohsiung selected 10 (KS10), were planted at density of 250,000 plants ha'1 each month in 1994. Climatic conditions during the growing periods indicated that all twelve growing periods were unique and distinctly different. The tested soybeans showed a significant response to planting date, genotype, and planting date-genotype interaction in grain and seed yields. There was, however, no consistent trend of planting date effect on yields. Results revealed that seed yields increase with the increasing of grain yields in soybeans. The 100- seed weight did not changed dramatically to planting dates as compared to yields. However, there was an uneven distribution of seed size in the tested genotypes to annual cultivation. The regression analyses showed that changes of grain and seed yields and 100-seed weight had correlation with climatic factors. Base on these results, soybean yields appeared to be varied greatly owing to planting date effect. The distribution of seed size was also affected by planting date. This variability was due partly to genotypic characteristics and climatic variations.
臺灣地區大豆產量及種子品質的表現明顯受到栽植期的影響，惟甚少硏究澄淸其間的差異及原因。本文硏究乃針對此一問題進行週年栽培試驗，期以探討產量及種子大小因栽植期的變異性。週年試驗係於1994年在臺灣省農業試驗所農場實施，參試基因型(品锺)爲高雄選一號(KS1)、高雄二號(K2)、高雄三號(K3)、及高雄選十號(KS10)，栽植密度爲每公頃250,000株。由氣象資料顯示，不同栽植期生育期間的氣象條件皆不相同。由變方分析結果得知，栽植期、基因型、及兩者交感之籽粒與種子產量均呈顯著差異，惟栽植期效應在基因型間並未呈現一致趨勢。
試驗又顯示，籽粒產量與種子產量之間呈顯著正相關。種子百粒重雖隨栽植期而異，然未如產量般出現極大的落差。種子大小分佈亦具差異性，且因基因型而不同。再由迴歸分析結果，顯示籽粒與種子產量及種子百粒重均和氣象因子相關。本文據此結論，栽植期對大豆產量及種子大小均有影響，此一差異影響因子包括基因型特性及氣象條件在內。
Subjects
Soybean
Yield
Planting date
Climatic factor
Seed size
Genolype
大豆
產量
栽植期
氣象因子
種子大小
基因型
Publisher
中華農業氣象學會
Type
journal article
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