22 research outputs found
Germination and seedling establishment in cashew (Anacardium occidentale L.): An interaction between seed size, relative growth rate and seedling biomass
Get PDFSeeds of cashew were used to determine the effect of seed mass (5.2 to 7.8 g) on germination, seedling emergence and growthunder nursery conditions. Germination percentage and germination time showed significant correlation with seed mass. Largesized seeds had higher germination percentage (81.6%) and produced more vigorous seedlings. Per cent seedling emergence wasrelated to seed mass with large sized seeds exhibited faster emergence. Seed mass significantly affected seedling survival andsurvival rate was high in seedlings arising from large sized seeds (62.9%). Seedling vigor expressed in terms of shoot and rootlength, leaf number, leaf area and total dry matter was significantly affected by seed mass. Seedlings that emerged from large sizedseeds showed better growth and produced heavier seedlings as compared to medium sized seeds. RGR showed significant variation(0.152 to 0.240 g g-1day-1) among two seed size classes positively correlated with seed mass, leaf area (LA), unit leaf rate per unitleaf area (ULRM), root to shoot ratio (R/S) and root mass ratio (RMR) and negatively with stem mass ratio (SMR). The studyconcluded that the seed mass and RGR have influence on seedling growth and success of seedling establishment in cashew
Effect of growth regulators and micronutrients on quality parameters in cashew (Anacardium occidentale L.)
Get PDFCashew (Anacardium occidentale L.) is an important tropical nut crop of social and economic importance worldwide. However, the crop is threatened with the low yield. In the present study, an attempt was made to test the effects of plant growth hormones as well as micronutrients on nut and apple quality of cashew var. Bhaskara. Significant differences in kernel weight, shelling percentage, carbohydrates and starch content of cashew kernel and juice content of cashew apple were observed with the foliar application of growth hormones and micronutrients. The foliar application of ethrel @ 50 ppm increased shelling percentage (35.8%), carbohydrate content (21.63%), sugar content (6.26%), protein content (32.4%), starch content (31.42%), juice content (78.3%) and total soluble solids (120 Brix). Further, the foliar spray of zinc sulphate (0.5%) + borax (0.1%) increased shelling (36.13%), protein content (32.15%), starch content (32.03%) among all the treatments tested. Furthermore, higher cashew apple juice content (78%) and total soluble solids (120Brix) was also recorded with the foliar spray of zinc sulphate (0.5%) + borax (0.1%)
