abid lone

Unfruitfulness is a major problem in many fruit crops and their varieties result in huge loss to growers and make fruit cultivation less profitable. Unfruitfulness in fruit crops refers to the state where the plant is not capable of flowering and bearing fruit. However, the causes of unfruitfulness can be broadly grouped into two categories: Internal and external factors. Among the internal factors, dichogamy prevents self pollination in perfect as well as monoecious flowers. The occurrence of flowers with variable style length (heterostyly) is common in Prunus fruits. The proportion of aborted pollen grains varied from 22.5 to 48.0 % in cashewnut. In apricot cv. ‘Trevatt Blue’, multiple ovules and anthers with degenerated microspores resulted in both female and male sterility and in ‘Tokaloglu’, the reason for unfruitfulness is self incompatibility (Gulcan and Askin, 1991). External factors, like temperature that is above 32°C, result in desiccation of stigmatic surface and more ra...

Unfruitfulness is a major problem in many fruit crops and their varieties result in huge loss to growers and make fruit cultivation less profitable. Unfruitfulness in fruit crops refers to the state where the plant is not capable of flowering and bearing fruit. However, the causes of unfruitfulness can be broadly grouped into two categories: Internal and external factors. Among the internal factors, dichogamy prevents self pollination in perfect as well as monoecious flowers. The occurrence of flowers with variable style length (heterostyly) is common in Prunus fruits. The proportion of aborted pollen grains varied from 22.5 to 48.0% in cashewnut. In apricot cv. ‘Trevatt Blue’, multiple ovules and anthers with degenerated microspores resulted in both female and male sterility and in ‘Tokaloglu’, the reason for unfruitfulness is self incompatibility (Gulcan and Askin, 1991). External factors, like temperature that is above 32°C, result in desiccation of stigmatic surface and more rap...

It is well known that rootstocks are used for tree size control but we may need to remind ourselves of their other benefits. They have other specific influences such as winter hardiness, early yield, good fruit size, phytopthora and collar rot resistance, replant disease tolerance and mildew and woolly aphid resistance. The one thing they all have in common is that they produce a uniform stand of trees .The attributes required for a rootstock have become more sophisticated over the years, but limiting excessive growth, precocity ,enhancing cropping efficiency and wider adoptability to biotic and abiotic factors remains the primary targets while using rootstocks. In recent past, clonal rootstocks of temperate fruits developed in Russia, Poland, USA, UK, France etc are being evaluated in the different areas of the world (M,MM, P, Bud, MAC, Ottawa series in Apple, OH x F, Oregon series in Pear, Gisela series in Cherry, Peach x Almond hybrids rootstocks etc). “Lapins” sweet cherry cutiv...

The present study was aimed to document the genetic variability in wild genotypes of pomegranate in central Kashmir. On the basis of morphological and physicochemical characters, 33 genotypes were identified during intensive survey in districts Srinagar, Ganderbal and Budgam in 2009–2010. Remarkable variability was observed amongst the genotypes for traits like plant height, plant spread, yield, fruit length, diameter and weight, total aril weight, rind thickness, TSS, juice content, acidity, ascorbic acid, reducing sugars, total sugar and anthocyanin contents. On the basis of yield and quality, 7 best genotypes were selected for use in future pomegranate improvement programme.

This study was carried out during three successive seasons (2009, 2010 and 2011) on walnut (Juglans regia L.) seedlings. Grafting was done by wedge methods on nine dates (5 January, 15 January, 25 January, 5 February, 15 February, 25 February, 5 March, 15 March and 25 March). The pooled data showed that, highest success percentage of grafting was obtained on 25 January and lowest was recorded on 25 March. The maximum number of shoots/scion and leaves/scion was observed on 25 January. The highest value for scion diameter (0.94cm) was found on seedlings grafted on 25 January while as lowest scion diameter of 0.45cm from grafts, grafted on 25 March. The highest proportion of salable plants was observed on 15 January and lowest proportion was found on 25 March. Our results also suggest that January grafting produces better bud-take, number of leaves and scion growth as compared with February and March grafting. Therefore, the best time for grafting is January under polyhouse conditions.

Colour is an important quality parameter which determines consumer acceptability of fruits like apple. It depends on many harvesting and postharvest factors. Present study was carried out to determine the influence of harvest dates, precooling, calcium chloride, wax coating and storage conditions on colour of apple cv Red delicious. It was evaluated by sensory analysis, L*, a*, b* values using chromometer and anthocyanin content. Fruits from three harvest dates (H1, H2 and H3) were subjected to various treatments. The treatments included T1 (shade cooling), T2 (Hydrocooling), T3 (Hydrocooling + calcium chloride), T4 (Hydrocooling + wax) and T5 (Hydrocooling + calcium chloride + wax). Samples were stored under ambient and refrigerated condition for 100 days to monitor colour changes. There was colour degradation as indicated by increase in L* and b* values and decrease in a* values during storage. In general T5 (Hydrocooling + CaCl2 + wax) showed lowest changes in all the studied par...