每穴種植株數對同質與異質大豆族群生育之影響

Abstract

由於本省大豆種植方式普遍為每穴種植二株，可能造成同穴植株間之競爭壓力，因而影響產量及育種選拔效果，又因兼顧雜交早期分離世代為不同基因型之異質族群，後期品系世代之同一試區或系行為相同基因型之同質族群，故本試驗針對此種植株間競爭壓力改變及早後期世代之不同遺傳背景兩大要素進行探討，以供栽培及育種選拔參考， Soybean (Glycine max L.) cultivars KS 8 and TNG 15, different in colors of flowers and young stern as genotypic markers were grown both in monoculture and mixture under various spacings. They were arranged in a way so that the effects of 1- and 2-plant per hole and hole distance on the selection effectiveness of early or latter segregating generation populations can be determined.