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本试验采取随机区组设计,3次重复,对引进的4个巴西旱稻品种和1个三系杂交水稻组合在旱种条件下的生物学特性进行了研究。结果表明:Tangara和Iapar-9株叶形态较好,生育期适中,适于长沙地区栽培;各供试品种和组合的产量以Tangara最高,水稻杂交组合新香优80次之;根系活力以Tangara的最大;新香优80的光合速率、蒸腾速率、气孔导度均较旱稻品种高,Tangara又较其他旱稻品种高。
In this study, randomized block design and 3 replicates were used to study the biological characteristics of 4 combinations of upland rice and 1 line of three-line hybrid rice under drought condition. The results showed that Tangara and Iapar-9 plants had good leaf morphology and moderate growth period and were suitable for cultivation in Changsha. The highest yield of Tangara and Iapar-9 plants was Tangara and the hybrid rice of Xinxiangyou 80 times. The root activity of Tangara and Iapar- The photosynthetic rate, transpiration rate and stomatal conductance of Xinxiangyou 80 were higher than those of upland rice varieties, and Tangara was higher than other upland rice varieties.