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不同处理对软荚红豆育苗效果的影响研究∗
谢石杨1, 林玉华2, 钟泳林3, 严法麟1, 谢佩吾3, 谢日芬1, 王德州4, 连辉明3
1.梅州市平远县林业局，广东平远 514600;2.广州德源林业有限公司;3.广东省森林培育与保护利用重点实验室/广东省林业科学研究院，广东广州510520;4.广东兴源农林有限公司，广东梅县 514700
摘要:
为提高软荚红豆 Ormosia semicastrata 播种育苗效果, 在研究软荚红豆果荚与种子形态 基础上, 测 特征的 定其种子室内和场圃发芽率, 并采 4 种方法培育苗木, 比较其生长效果。 结果表明, 软荚红豆 果荚平均长为 11. 81 mm, 平均宽为 8. 77 mm, 平均重为 0. 373 7 g; 种子平均长为 8. 09 mm, 平均宽为 5. 69 mm, 千粒重为 242. 32 g。 果荚出籽率约为 64. 84%。 室内最高发芽率为 70. 00%, 平均发芽率为 53. 33%, 从第 7 天开始发芽, 21 天后结束; 不同方法处理种皮, 场圃发芽率差异极显著, 以 T6 处理发 芽率最高, 为 84. 37%; 4 种处理培育苗木, 以 T2 (黄心土基质且全光照) 保存率较高, 达到 94. 44%。 两种基质相比, 黄心土保存率比轻基质保存率高 5. 55 个百分点, 软荚红豆幼苗生长相当缓慢, 11 个月平 均苗高为 6. 61 cm, 平均苗径 1. 75 mm。
关键词:  软荚红豆  形态特征  发芽率  育苗
DOI：
分类号:
基金项目:广东省林业局自然资源事务专项资金项目 “广东省林木种质资源调查” (GDZZDC20228701)。
Study on the Effect of Different Treatments on the Seedling Cultivation of Ormosia semicastrata
XIE SHIYANG1, LIN YUHUA2, ZHONG YONGLIN3, YAN Falin1, XIE PEIWU3, XIE RIFEN1, WANG DEZHOU4, LIAN HUIMING3
1.Pingyuan Forestry Bureau, Meizhou City, Pingyuan 514600;2.Guangzhou Deyuan Forestry Co., LTD., Guangzhou 510419;3.Guangdong Provincial Key Laboratory of Forest Silviculture, Protection and Utilization/Guangdong Academy of Forestry, Guangzhou 510520;4.Guangdong Xingyuan Agriculture and Forestry Co., LTD., Meixian 514700
Abstract:
In order to improve the sowing and seedling raising of Ormosia semicastrata, based on t of the morpholog he study ical characteristics of the fruit pods and seeds of O. semicastrata, the germination rate of soft pod red bean was measured in the laboratory and field, and 4 kinds of treatments were selected to compare the seedling cultivation techniques. The results showed that the average length of the pods of O. semicastrata was 11. 81 mm, the average width was 8. 77 mm and the average weight was 0. 373 7 g. The average seed length was 8. 09 mm, the average width was 5. 69 mm, the 1 000-grain weight was 242. 32 g. The seed rate of fruit pods was about 64. 84%. In the laboratory, the highest germination rate was 70% and the average germination rate was 53. 33%. The germination started from the 7th day and ended after 21 days. The germination rate was significantly different in different treatments, and the highest germination rate was 84. 37% in the T6 treatment. The preservation rate of the seedlings in T2 (yellow soil matrix and full light) was 94. 44%. Compared with the two substrates, the retention rate of yellow core soil was 5. 55 percentage points higher than that of light substrate, and the growth of O. semicastrata seedlings was rather slow, with an average seedling height of 6. 61 cm and an average seedling diameter of 1. 75 mm at 11 months.
Key words:  Ormosia semicastrata  morphological characteristics  germination rate  seedling