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本文研究了32个籼稻品种(品系)的成熟胚愈伤组织诱导率和绿苗分化率与植株农艺性状的相关系数,并进行逐步回归分析。结果表明,在籼稻成熟种胚离体培养中,绿苗分化率除与愈伤组织诱导率有极显著正相关(r=0.758~(**))外,与生育期、粒长、千粒重、穗长等农艺性状也有显著或极显著相关,但逐步回归分析表明,绿苗分化率仅与粒长有关,决定系数仅0.217。
In this paper, the correlation coefficients of callus induction rate, green shoot differentiation rate and plant agronomic traits of 32 indica rice cultivars (lines) were studied and analyzed by stepwise regression. The results showed that there was a significant positive correlation (r = 0.758 ~ (**)) between the differentiation rate of green plantlet and the induction rate of callus in mature embryo of indica rice, Spike length and other agronomic traits also had significant or extremely significant correlations, but stepwise regression analysis showed that the rate of green plantlet differentiation was only related to grain length, with a coefficient of determination of only 0.217.