No abstract

Current study is emphasizing on the estimation of heterosis for different yield attributing traits and adaptability of tomato hybrids. It was performed in the research area of VCRP, HRI, NARC Islamabad during 2018-2019. Crossing was completed among six parents followed by line × tester. The analyzed data depicted significant differences (P ≤ 0.01) among all the characters.Due to desirable high negative heterotic values hybrids Peto-86 × Nagina and Riograndi × Roma were found suitable for breeding early maturing hybrids. For plant height maximum positive heterosis was observed in Riograndi × Nagina, for no. of cluster/plant in Naqeeb × Roma, for traits like flower cluster-1, fruit cluster-1, fruit length & width and single fruit weight in Naqeeb × Continental while for yield Riograndi × Continental showed maximum heterosis. Therefore among 9 tested hybrids Naqeeb × Continental was found to be highly preferable and recommended for utilization in different breeding programmes.

Tomato germplasm is a rich wellspring of Genetic differences. Examination work began from the month of March in NARC, Islamabad Pakistan. Spent very nearly Sixteen weeks here. Being a Plant Breeding and hereditary qualities understudy our principle center was on rearing and advancement of different assortments inside of the genotype. Right from the begin we were appointed to take a shot at Agro-Morphological Traits of Tomato. Every one of the examination with respect to AgroMorphological Traits was completed to concentrate on the conduct Tomato's distinctive genotypes. Distinctive sorts of test were doing to perform examination work in innovative research centers of PMAS-AAUR. Every one of these regions of examination venture was profoundly fascinating. To sum things up, we got a fortune of commonsense information by doing this examination. The goal of the present study was to describe tomato germplasm through morphological attributes. This study will be useful for varietal improvement, hybrid seed creation and distinguishing proof of attractive genotypes from germplasm.

Sweet pepper (Capsicum annuum L.) is a main crop of Solanaceae family. Pepper (Capsicum annuum) is most susceptible to drought among horticultural crops. From many studies it is clear that limited water supply, during pepper growth, has negative effect on yield. Adequate irrigation during entire growth period is necessary for good yields. With scarce availability of water, the farmer must find a combination of management practices and varietals approach to overcome this problem. The present study was conducted to evaluate a suitable foliar application of calcium and potassium to alleviate drought stress in bell pepper. The research was carried out in the experimental area, PMAS-Arid Agriculture University, Rawalpindi, during the year 2012. A pot experiment was conducted in the green house to study the effect of foliar applied different concentrations (5, 10 and 15 mM) of calcium chloride and potassium chloride to alleviate drought stress in bell pepper plants. Both experiments were conducted according to CRD (completely randomized design). Calcium and potassium significantly improved all parameters, i.e., photosynthesis rate, transpiration rate, leaf free proline, leaf osmotic potential, fruits weight, etc. Calcium chloride at 10 mM showed better results than other treatments under normal irrigation while calcium chloride at 15 mM showed better results under drought conditions. So, it may be concluded from present study that drought tolerance in bell pepper could be improved by foliar application of calcium and potassium chlorides.

Research on pea seed capacity and the recognizable proof of proficient seed force tests for this species is still inadequate, particularly for cultivars that deliver wrinkled seeds utilized for utilization as a part of nature. The goal of this study was to check the precision of tests to evaluate the physiological capability of pea seed parts put away in various situations. Four seed heaps of two cultivars, "Peak" (uncertain development propensity) and "Matar" (determinate development propensity) were put away under various natural conditions for 8 months: a) research facility uncontrolled b) dry and frosty chamber (10 ºC and 30% RH), c) controlled environment (20 ºC and 70% RH). Seed power (quickened maturing, electrical conductivity, seedling length and seedling rise) was assessed at first and following four and eight months stockpiling. Results demonstrated that the utilization of seed loads of high introductory physiological potential is basic for ensuring the craved execution of pea seeds amid capacity. Wrinkled pea seeds ought to be put away in the middle of harvest and sowing in a situation in which the entirety of the relative dampness (%) and temperature (°C) does not surpass 70. Physiological capability of pea seeds ought to be assessed by no less than two energy tests; thought to quickened maturing and Tetrazolium chloride tests is prescribe.

Citation: Rashid S, Abbas M, Bano Q, et al. Genetic diversity assessment of tomato (Solanum lycopersicum L.) germplasm based on agro-morphological traits.