Cold temperatures during both stages increased yield and number of fruit and decreased mean fruit weight.
The final investigation was designed to demonstrate that the yield of truss 1 could be reduced by competition for assimilates. Moreover, the watering was mainly based on guessing, without any experimentation and the right water quantity that tomato plants need.
Path analysis study showed that average fruit weight, number of fruits per plant, number of locules per plant, plant height, number of bunches per plant and length of the fruit have direct positive effect on fruit yield.
Until recently, later transplant, although there was no literature feed-up to support it, was thought to lead in higher net returns, whereas the early ones to vegetative growth. It was suggested that a contributing factor to the latter response was that, where a change in nitrogen level was involved, the change from high nitrogen to low nitrogen produced a more productive plant response than when the sequence of applications was reversed.
Tomato research articles
Based upon, the lack of experimentation on these two parameters, the present thesis focus on the right transplant stage and tries to evaluate the different irrigation schedules, so as ultimately to suggest the plan that will have the highest net returns. Tomato plants cv. However, the organic tomato production still remains low, although the estimations concerning the demand trend show a steady increase. Flower number and earliness of flowering of certain trusses was increased by the high level of nitrogen applied after initiation. Evidence was presented in the last three studies that economic yield in the tomato plant can be limited simultaneously by lack of both source and sink strength. Total yield was increased by increases in leaf level when sink strength was high and by additional trusses or extra pollination when the amount of leaf tissue was adequate. The final investigation was designed to demonstrate that the yield of truss 1 could be reduced by competition for assimilates. A close positive relationship was shown to exist between leaf dry weight and yield, while leaf position did not appear to be important. It was suggested that low temperatures produced an enhanced supply of assimilates to the apex, which then initiated more flowers and that cold temperatures appeared to influence yield solely due to its effect on flower number. By using D2statistics 45 genotypes were grouped into nine clusters out of which cluster III and cluster VI are more divergent consisting of seven and two number of genotypes and some valuable heterotic hybrids may be obtained by hybridization using the parents included in this two divergent clusters.
The remaining investigations were devoted to the relationship between vegetative and reproductive growth source sink relationship in the tomato plant. Cell-wall hydrolysis in these endosperm cells is under tight control and requires the specific activity of LeMAN2.
High estimate of genotypic co-efficient of variationheritability in broad sense and genetic advance were observed for the traits such as yield per plant, plant heightNumber of fruits per plantaverage fruit weightnumber of bunches per plant, number of locules per fruit suggesting additive gene action for expression of these characters.
Therefore, in order to achieve the best feasible yield, some parameters need to be altered.
Plant height contributed maximum towards genetic divergence followed by number of fruits per plant, average fruit weight and yield per plant. Abstract Since the beginning of the 19th century, tomato has become very popular and due to its wide adaptation, it is now cultivated throughout the world. Expression of LeMAN3 was evident in the endosperm cap and in the lateral endosperm of the transgenic seeds 10 min after imbibition. Until recently, later transplant, although there was no literature feed-up to support it, was thought to lead in higher net returns, whereas the early ones to vegetative growth. In addition, as far as the watering schedules are concerned, the larger volumes resulted in a higher fruit set, along with a vegetative production in both transplant stages, whereas the lower water quantities in a smaller production, consisting of shorter and more fragile plants. The reasons are still indistinct, but some parameters can be changed to alleviate the situation; the transplant stage and the early watering schedule. It was suggested that low temperatures produced an enhanced supply of assimilates to the apex, which then initiated more flowers and that cold temperatures appeared to influence yield solely due to its effect on flower number. So direct selection based on these characters will be more effective in improvement of tomato.
based on 92 review