Coconut: Root wilt, cadang cadang and bud rot
Coconut: Root wilt, cadang cadang and bud rot:-
1. Root wilt (रूट विल्ट):- Phytoplasma
Symptom (लक्षण):-
- Tapering of terminal portion of the trunk.
(तने के शीर्षस्थ हिस्से का संकरा होना।)
- Reduction of leaf size.
(पत्तियों के आकार में कमी।)
- Abnormal bending or Ribbing of leaf lets termed as flaccidity.
(पत्तियों का असामान्य झुकाव या पत्तियों का लहराना, जिसे 'ढीलापन' कहा जाता है।)
- Flowering is delayed and also yield is considerably reduced.
(पुष्पन में देरी और उपज में काफी कमी।)
- The characteristic symptom is the flaccidity of leaflets. This is the earliest visual symptom. In the beginning yellowing is restricted from the leaf tips to the middle of the leaves. Necrosis of leaflets and deterioration and decay of root system are other salient features of the disease. The leaflets curve inwardly to produce ribbing so that the whole frond develops a cup like appearance. Abnormal shedding of buttons and immature nuts are also noticed.
(इसका विशिष्ट लक्षण पत्तियों का ढीलापन है। यह सबसे पहला दृश्य लक्षण है। शुरुआत में पीलापन पत्ती की नोक से लेकर पत्तियों के मध्य तक सीमित होता है. पर्णकों का परिगलन और जड़ तंत्र का क्षय इस रोग की अन्य प्रमुख विशेषताएं हैं। रिबिंग पैदा करने के लिए पर्णक अंदर की ओर मुड़ती हैं, जिससे कि सम्पूर्ण पर्ण एक कप जैसी आकृति विकसित करती है। बटनों का असामान्य रूप से झड़ना और अपरिपक्व नट भी देखे गए हैं।)
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