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palm Tag

16 Dec

Posted at 09:31h in Crop disease
S. K. Maheshwari 11 views

Disease management in dry arid regional Fruits of Rajasthan राजस्थान में विभिन्न प्रकार के शुष्क क्षेत्रीय फल उगाये जाते हैं। जिनमें अनेक प्रकार के रोग लगते हैं जिससे इन फलों की गुणवत्ता तथा उपज दोनों प्रभावित होती हैं। इसलिए इन फलो के मुख्य रोगो का निदान करना अत्यंत आवश्यक है, जो निम्न प्रकार है : अ) बेर के मुख्य रोग 1. बेर में छाछया रोग इस रोग में सबसे पहले पौधों की टहनियों, पत्तियों एवं फलों पर सफ़ेद चूर्ण जैसी फफूंद  दिखायी देती है जो बाद में पूरे फल पर फैल जाती है। रोग संक्रमित फल आकार में छोटे रह जाते हैं।   निदान : इस रोग के लक्षण नजर आने पर 0.1 प्रतिशत केराथेन का 10-15 दिनों के अंतराल पर 3 बार छिड़काव करना चाहिए। केराथेन का एक छिड़काव सितम्बर माह के शुरू में रोग से बचाव के रूप में छिड़काव करना लाभप्रद होता है। इसके अतिरिक्त गंधक के चूर्ण का भुरकाव 15-20 दिनों के अंतराल पर करने से व्याधि नियंत्रित की जा सकती है। 2. बेर में आल्टरनेरिया फल सड़न:         इस रोग में गहरे भूरे रंग के धब्बे दिखाई देते हैं। रोगी फल छोटे रह जाते हैं। रोग ग्रसित फल शीघ्र टूट कर गिर जाते हैं जिससे उपज में भारी कमी हो जाती हैं। निदान : इसके नियंत्रण के लिए मेंकोजेब के 0.2 प्रतिशत घोल का छिड़काव लक्षण दिखाई देते ही करना...

16 Dec

Posted at 06:20h in Miscellaneous
L.Saravanan 34 views

तेल पाम में परागण करने वाला एक घुन या कीट- भुजा एलाइडोबियस कामरुनिकस (फ़ॉस्ट) Oil palm, Elaeis guineensis Jacq. is a monoecious plant which means it bears male and female inflorescences, separated from one another on the same vegetative axis. This particular situation demands cross pollination, as both the inflorescences of the same plant are seldom simultaneously receptive. Pollination in oil palm is primarily by various means viz., wind and insects. Several species of insects are reported as natural pollinating agents, of which Elaeidobius kamerunicus is the predominant species. Introduction of this weevil increased fruit set from 36.9 to 56.0% resulting in 40% increase in bunch weight. Knowing about various aspects of pollinating weevil, will assist oil palm growers to plan the plant protection strategies and conserve the pollinating weevils for better performance in pollination. Bunch failure and Insect pollination in oil palm Bunch failure refers to bunch that fails to develop from anthesis to harvest. This could be due to physiological reasons, bunch rot, poor pollination (lack of pollinators) etc.   Figure 1. Oil palm with adequately pollinated fruit bunches  Figure 2. Bunch showing very poor fruit set Anthesis of male flowers (refers to stage of pollen production) starts with the opening of florets at the base of the male inflorescence. The opening progresses gradually...

11 Dec

Posted at 04:29h in Seed production
P. Naveen Kumar 28 views

बीज गार्डन के माध्यम से ऑयल पाम की गुणवत्ता वाली रोपण सामग्री Oil palm (Elaeis guineensis Jacq.) cultivation has been expanded rapidly in recent years and is now second only to soybean as a major source of the world supply of oils and fats. It is the highest edible oil yielding crop yielding up to 5-6 tonnes of mesocarp oil (Crude Palm Oil, CPO) and 0.4 to 0.6 MT of palm kernel oil (PKO) per ha per year which is much higher (5-8 times) than that of any major oil producing crop. This crop offers viable solution for the ever increasing shortage of vegetable oils in the country and in saving valuable foreign exchange (approx 70,000 crores during 2012-13) being incurred annually for import of edible oils. Palmolein, the liquid fraction of RBD (Refined, Bleached and deodourized) palm oil is commonly used for cooking at home, in fast food restaurants, and also in snack foods and instant noodles manufacture. Palm oil and its fractions are also used in production of margarine, bakery and frying shortenings, vanaspati, confectionery fats, ice creams and as a replacement for butter fat in some dairy products. Palm oil is particularly suitable for deep frying because it is relatively stable at high temperature, compared with the more unsaturated oils. Palm...

11 Mar

Posted at 06:43h in Crop disease
V. Karuppaiah 26 views

शुष्क फलों के प्रचलित कीट-पतंग और उनके प्रबंधन के विकल्प Remarkable increase in fruit crops cultivation under hot arid region of western India lead to drastic changes in the pest population dynamics. The fruits such as ber (Ziziphus mauritiana), date palm (Phoenix dactylifera) and bael (Aegle marmelos) are an important fruit crops grown in this area. The productivity is concern, it is low because of harsh environment (high temperature, low precipitation, high PET, high wind velocity), poor soil fertility and salinity. Beside these, the biotic pressure like pest and diseases also play a critical role, which cause significant loss and adds cost of production. Hence, in this article we discussed the present status of insect pests of these fruit trees and their management options and this information would be highly useful to the farmers of this region for successful management of different insect pests. A. Insect pests of Ber 1. Ber butter fly(Tarucus theophrastus Fab.) Symptoms of damage:Larvae feed on sprouting tender shoots, leaves and flower buds. Infested leaves gives whitish look due to chlorophyll feeding finally the leaves remain with long streaks. It damages the leaves upto 25 to 40   per cent. Period of activity: June to September Recommendations: Spray of quinalphos (0.05%) during the sprouting and onset of flowering and repeat the spray at...