EFFECT OF SOME AGRICULTURAL. TREATMENTS ON ROQUETTE SEEn PRODUCTION | ||||
| Journal of Plant Production | ||||
| Article 4, Volume 28, Issue 12, December 2003, Page 8269-8280 PDF (541.99 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2003.246335 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| S. S. A. Amer,; F. M. M. EI-Asslouty | ||||
| Vegetable Res. Dept., Hort Res. Inst. Agric. Res. Center | ||||
| Abstract | ||||
| This study was carried out at Kaha Farm 01 Horticultural Research Institute. Kaluobia Governorate during the two successive winter seasons of 1998/1999 and 1999f2000. to study the effect of cutting frequency: i.e. without cutting. one cut and two cuts and gibberellic acid at 0, 50 and 100 ppm. as well as their interCloClion on growth parameter, photosynthetic pigments (Total chloropyn content), flowering characteristics, seed yield and its components, in addition to germination characters of Rocket cv, Balady. Obtained results could be summarized as follows: 1- Cutting frequency caused significant increases in number of leaves, number of main branches, number of seed per pod, seed yield per fed. and seed index. On the other hand, contra results were obtained by cutting frequency with leaf area, chlorophyll content. and. seed-stalk. height. These lreatments delay~ flowering and minimized significantly the number of days needed for germination while germination percentage and seedling length of the produced seed were not significantly affected by number of cuts. The maximum in increases in seed yield were obtained by one cut treatment. Such InC/eases were 21.6 and 23.4% comparing wUh the control in the first and second seasons. respedively. 2- Spraying plants with GAJ produced higher number of leaves/plant and chlorophyll content of teaves. Similar trend of response was noliced concerniJ'lg leaf area, number of main branches, seed yield and its components as well as seedling length were signiflcanlly increased by these treatment comparing with the control. On the other hand, GAJ reduced seed stalk height and favored early flowering but had no significant effect on germination percentage and germination rate of the produced seeds. The maximum increases in Seed yield was obtained by 100 ppm GAJ treatment, the percentage increases were 27.2 and 33.9% comparing with the control In the first and second season!'>, respectivety. 3- The interaction between cutting frequency and GAl treatments had no signffJcant effect on growth parameters, chlorophyll content, flowering date and gennination rate, while this effect was significant concerning seed-stalk height. number of main branches. seed yield and its components and seedling length. of the produced seeds: It could be concluded that cutting roquette plants once interacting 'With spraying Yrith 100 ppm GA~ was found to be Ihe best treatment for the production 01 high dry seed yield, such trealmenl could be recommended. | ||||
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