行政院農業委員會台南區農業改良場  研究彙報第10號

蘆筍選種

(一)選種方法,雙方分析及優良植株選拔之研究

陳榮五 簡榮村

摘  要

本試驗結果分為選拔方法,變方成份分析及優良植株選拔三部份。一、在選拔方法研究上所得的結果為:1.單株產量與先前冬季休閒期母莖數根盤大小等成正相關,而母莖直徑大小,則以中等大小最好。2.母莖大小與嫩莖大小成正相關。3.嫩莖筍尖緊密度與母莖第一分枝高度成正相關。4.母莖平均枝數與根盤大小及嫩莖平均枝數成正相關。5.冬季母莖高度與產量之關係在u.c.309品種呈顯著,而在u.c.711品種則極顯著。6.夏季母莖較高者則表現抗病性較強。本結果可供今後臺灣地區選種之參考及應用。二、品種變方成份經分析結果總產量佔8%,一級品產量佔7.4%,其品種變異係數u.c.309品種總產量8.38%,一級品產量為11.25%,u.c.711品種總產量9.38%,一級品產量15.53%。三、優良植株選拔經二次選拔後加州309品種得到102株,加州711品種得到106株,每單株分割成5∼10分株,於民國六十五年二月栽植供繼續進行試驗之用。


Selective Breeding of Asparagus

I. Studies on Selection Methods, Analysis Variance of Variety Components and Superior Plants

Y. W. Chen and Y. C. Jean

Summary

1. Selection Methods: (1) Yield of individual asparagus plant is correlated positively with number of stalks and crown size.  Medium stalks were found good for yields.  (2) Stalks diameter is correlated positively with spears diameter.  (3) The height of first branching spears is correlated positively with degree of spear tightness.  (4) Mean stalks number is correlated positively with crown size and spears number per plant.  (5) There are significantly correlated between yield and height of stalks on U.C. 309 and U.C. 711.  These conclusions were based on investigating the plant characters at winter harvest.  (6) Plants with taller stalks were more resistant to disease during the summer season.  Results of this study would be used for conference and performance on selective breeding.

2. Analysis variance of variety showed 8% for total yield and 7.4% for first grade yield.  Coefficients of variation of total yield and first grade yield were 8.38% and 11.25% respectively, for U.C. 309 and were 9.3% and 15.33% respectively, for U.C. 711.

3. After twice selection for superior plants, 102 and 106 plants were selected for U.C. 309 and U.C. 711, respectively.  Each of the superior plants was cut into 5 to 10 segments, which were planted on February 1976 for the continuation of this experiment.



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