[Effect of planting date in marginal dryland on growth of upland rice va. Dodokan]
1996
Harahap, R. (Balai Penelitian dan Pengembangan Botani, Bogor (Indonesia))
An experiment was conducted to study the effect of planting date in marginal dryland on growth of dryland rice var. Dodokan. Experiment was designed to follow Randomized Block Design, with five treatments of planting date: four weeks before rain (A), two weeks before rain (B), one week before rain (C), one day after rain (D), and one week after rain (E), each with three replications. Variables which were observed were number of shoots, height of plant, length and width of leaf, number of stalks, length of stalk, number of ears per stalk, and wet weight of straw. The results of experiment show the growth of rice planted after rain was better than if it was planted before rain. Generative growth of dryland rice planted one week after rain was better that the others. Number of shoots was highest is treatment D and E : 9.03 and 8.60, respectively. These were significantly different (at 0.05) with treatment of A, B, C at four weeks. Height of plant and length of leaf in treatment D at eigth weeks after planting were significantly different (at 0.05) with treatmens of A, B, and C. There was a tendency that prolonged emplacement of seed in the soil under fluctuated temperature and soil moisture conditions will reduce seed vigor, rate of seed emergence, and its vegetative growth
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