大戟科麻疯树的形态特征及物候模拟。参数。基因型

Edith Salazar-Villa, Martha Lidia Gutiérrez-Pérez, Federico Soto-Landeros, Karla Marina Báez-Parra, Maria P. Sosa-Segura, M. Angulo-Escalante
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引用次数: 0

摘要

对采自墨西哥锡那罗亚州和杜兰戈州的白叶麻疯树进行了形态学表征和物候学建模。形态特征证明了雌雄同株植物的存在,在同一花序中发现了雄花和雌花的个体。有四粒种子的水果也被发现。物候研究分为两个阶段,并计算了热需要量(∶D):营养期[种子期(0)、发芽期(24)、出苗期(98)、子叶期(87)、第二叶(302)和第四叶(524)真叶、营养生长末期(302)]和生殖期[开花期(303)、结实期(342)、成熟期(126)、落叶期和衰老期(450)]。8个基因型的热常数(2558)相似。物候分期和累积日数采用三次多项式(分期=−0.0041x + 0.7446x−8.6808x + 6.2448) (R = 0.99%)分期进行调整。物候模型的建立有助于花期预测,为选育高油高蛋白品种提供依据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Morphological Characterization and Phenological Modeling of Jatropha platyphylla (Euphorbiaceae) Muell. Arg. Genotypes
Morphological characterization and phenological modeling were carried out on genotypes of Jatropha platyphylla collected from the states of Sinaloa and Durango, Mexico. The morphological characterization evidenced the existence of monoecious plants, finding individuals with male and female flowers in the same inflorescence. Fruit with four seeds was also found. The phenological study was divided into two phases and calculated in thermal requirement ( ̊D): Vegetative [seedtime (0), germination (24), emergence (98), cotyledons (87), second (302) and fourth (524) true leaves, end of vegetative growth (302)] and reproductive [flowering (303), fructification (342), maturation (126), defoliation and senescence (450)]. The thermal constant (2558) was similar in all eight genotypes. The phenological stages and the accumulated degree days were adjusted with a third-degree polynomial (Stage = −0.0041x + 0.7446x − 8.6808x + 6.2448) (R = 0.99%) stage. The development of phenological models facilitates the prediction of the flowering date for the selection of varieties with high oil and protein content.
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