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为了探索红小豆在雨养件下的生物产量积累的特性,为红小豆科学经济种植,科学有效的利用自然降雨提供参考依据,于2012年开展以‘晋小豆2号’红小豆在雨养条件下的生长发育研究试验。‘晋小豆2号’出苗后20天开始大田取样、采集数据。通过采集‘晋小豆2号’根、茎、叶花、果实等农艺性状的生物产量动态数据的方法来研究‘晋小豆2号’在雨养条件下全生育期内的生物产量变化规律。结果表明,‘晋小豆2号’株高发育和生长天数呈现线性关系,线形相关方程式为y=12.097x-4.863,两者的拟合度达到0.8371;对生真叶在出苗后30天内叶面积的生物产量都持续增长,30天后呈下降趋势,50天后消失;三出复叶的生物量积累呈现抛物线形。干鲜重生物积累分别符合y=-2.5229x~2+48.458x-87.103和y=-0.3822x~2+7.8570x-14.878函数分布;茎生长和三出复叶生长同步,茎的生物持水量低于三出复叶;‘晋小豆2号’根的生长表现为先快,后缓,8月以后根的生长呈现比较平缓的锯齿状变化,土壤和外界改良对根的发育作用较大;主茎分枝和品种特性有关,是相对基本稳定的一个性状;节在雨量充沛的条件下,有增多的现象,但是生物产量的增加主要因节间距的伸长为主,控制株型可在出苗后50天左右进行。花脱落严重,成为有效结荚花在立秋前后。鼓粒、灌浆时间大约持续40天左右。鉴于此,‘晋小豆2号’可适当选择晚播;雨量充沛年份注意防止植株徒长;开花前期注重保花保蕾,以确保丰产丰收。
In order to explore the characteristics of adzuki bean’s bioaccumulation under rainy conditions, this paper provides a scientific basis for scientific adventitious planting of scutephilolus and scientifically effective use of natural rainfall. In 2012, the adzuki bean “Jinzadou 2” Under the growth and development research test. ’Jin Dou bean 2’ 20 days after emergence of field sampling, data collection. The dynamic changes of biological yield of ’Jindadou No.2’ during the whole growth period under the rainfed condition were studied by collecting dynamic data of the yield of ’Jindadou No.2’ root, stem, leaf flower, fruit and other agronomic traits. The results showed that there was a linear relationship between plant height and days of growth of Jinjudou No.2, the linear correlation equation was y = 12.097x-4.863, and the fitting degree of the two plants was 0.8371. Leaf area Of the biological production continued to grow, after 30 days showed a downward trend, disappeared after 50 days; three leaves of the biomass accumulation showed a parabolic shape. The dry weight and fresh weight accumulation accorded with the functional distribution of y = -2.5229x ~ 2 + 48.458x-87.103 and y = -0.3822x ~ 2 + 7.8570x-14.878, respectively. The stem growth was synchronized with the growth of three leaves, The growth of root of ’Jinzadou No.2’ showed the fastest and slowest after August. The growth of root showed a gentle jagged change after August, and the improvement of root and soil by soil and outside improved significantly. Main stem branch and variety characteristics, is a relatively stable a trait; section in the rainfall conditions, there is an increase in the phenomenon, but the increase in biological yield mainly due to the elongation of the pitch-based control of plant type in About 50 days after emergence. Flower shedding serious, become an effective pod flower before and after the establishment of autumn. Drum grain, grouting time lasted about 40 days. In view of this, ’Jindou No. 2’ may be the appropriate choice of late-sowing; rainy years to prevent plant growth graceful attention; early flowering pay attention to Paul Bao Lei, to ensure good harvest.