Regulation of flowering in acid lime (Citrus aurantifolia Swingle)

Abstract

India is the largest producer of acid lime in the world and they are used as fresh fruit or for the preparation of pickles and beverages. They are rich in vitamin C, minerals and salts. The seasonality of production leads to market glut which results in poor returns to the farmers. Hence, an experiment was conducted to manipulate and regulate flowering by using various plant growth regulators viz., GA­3 and cycocel, chemicals viz., KNO3 and salicylic acid at 11 different treatment combinations. The experiment was conducted in randomized block design (RBD) and each treatment was replicated thrice. The age of the trees was seven years and the variety used was PKM1. The experiment conducted in four consecutive years. The experimental results showed that there were significant differences among the treatments. Acid lime trees sprayed with GA3 50 ppm in June + cycocel 1000 ppm in September + KNO3 2% in October recorded the highest number of fruits tree-1 (1003), weight of fruits (48.60 g) and average fruit yield (28.96 kg tree-1). The same treatment registered the highest values for juice content (32.13 %), TSS (7.29o Brix) and ascorbic acid content (32.56 mg / 100ml).

Humic Acid Improves the Resilience to Salinity Stress of Drip-Irrigated Mexican Lime Trees in Saline Clay Soils

“…Harvest season started by September 17 and 23 in the 2020 and 2021 seasons (≈154 and 161 days from full bloom), respectively, when fruit reached the horticultural maturity (light green color stage and total acidity [TA] = 8 ± 0.16%) per the consumer preference [76,77]. Fruit yield was recorded as total weight (kg) and number of fruit per tree.…”

Crop Regulation: Need to be Good Quality and Higher Production of Fruit Crops

“…Mahalle et al,(2010) reported that two sprays of cycocel @ l000 ppm at an interval of one month before initiation of flowering in August and September for Hasta bahar flowering (i.e., September and October) of acid lime resulted in maximum yield in terms of number of fruits per tree and weight of fruits per tree and this treatment also improved the fruit quality in respect to juice %, TSS, acidity, ascorbic acid content, peel and pomace per centage. Prabhu et al, (2017) reported maximum initial fruit set, fruit retention, number of fruit/ tree, fruit weight and fruit yield in summer season acid lime cv. PKM 1 with spraying of GA 3 50 ppm in June + Cycoce"l 1000 ppm in September + Spraying of 2 % KNO 3 in October.…”

Effect of Gibberellic Acid on Germination and Vigour of Kagzi Lime Seedlings

“…Kagzi lime is used in almost every home of the Indian sub-continent to flavour food or in the preparation of pickles. India occupies the fifth position among major lime and lemon producing countries in the world and is the largest producer of acid lime [1]. In India, lime and lemon cover an area of 259 thousand hectares with a production of 2789 thousand MT [2].…”

“…The recalcitrant seeds impose serious storage problems due to their desiccation and chilling sensitivity. That soaking seeds in water for 12-36 hrs induces early germination, increases germination percentage and promotes growth has been demonstrated in kagzi lime [4], mango [1], jackfruit [5], aonla [6] and tamarind [7]. An experiment was therefore framed to study the effect of storage treatments, gibberellic acid and duration of soaking on seed germination and seedling growth in Kagzi lime.…”